Moved Abi Encoder into utils package

3 files changed, 1762 insertions, 0 deletions

diff --git a/packages/utils/test/abi_encoder_test.ts b/packages/utils/test/abi_encoder_test.ts
new file mode 100644
index 000000000..2a8fba450
--- /dev/null
+++ b/packages/utils/test/abi_encoder_test.ts
@@ -0,0 +1,935 @@
+import * as chai from 'chai';
+import 'mocha';
+
+// import { assert } from '@0x/order-utils/src/assert';
+
+import { chaiSetup } from './utils/chai_setup';
+import { BigNumber } from '../src/';
+//import * as AbiEncoder from './abi_encoder';
+
+import * as AbiEncoder from '../src/abi_encoder';
+import * as AbiSamples from './abi_samples';
+
+chaiSetup.configure();
+const expect = chai.expect;
+
+describe.only('ABI Encoder', () => {
+    describe.only('Optimizer', () => {
+
+    });
+
+    describe.only('ABI Tests at Method Level', () => {
+
+        it('Should reuse duplicated strings in string array', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.stringAbi);
+            const strings = [
+                "Test String",
+                "Test String 2",
+                "Test String",
+                "Test String 2",
+            ];
+            const args = [strings];
+
+            // Verify optimized calldata is expected
+            const optimizedCalldata = method.encode(args, { optimize: true });
+            const expectedOptimizedCalldata = '0x13e751a900000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000000b5465737420537472696e67000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d5465737420537472696e67203200000000000000000000000000000000000000';
+            //expect(optimizedCalldata).to.be.equal(expectedOptimizedCalldata);
+
+            // Verify args decode properly
+            const decodedArgs = method.decode(optimizedCalldata);
+            const decodedArgsJson = JSON.stringify(decodedArgs);
+            const argsJson = JSON.stringify(args);
+            expect(decodedArgsJson).to.be.equal(argsJson);
+
+            console.log('*'.repeat(100), '\n', method.encode(args, { optimize: true, annotate: true }), '\n', '*'.repeat(100));
+            console.log('*'.repeat(100), '\n', method.encode(args, { optimize: true }), '\n', '*'.repeat(100));
+        });
+
+        it('Should point array elements to a duplicated value from another parameter', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.optimizerAbi2);
+            const stringArray = [
+                "Test String",
+                "Test String",
+                "Test String",
+                "Test String 2",
+            ];
+            const string = 'Test String';
+            const args = [stringArray, string];
+
+            // Verify optimized calldata is expected
+            const optimizedCalldata = method.encode(args, { optimize: true });
+            const expectedOptimizedCalldata = '0xe0e0d34900000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000c00000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000d5465737420537472696e67203200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b5465737420537472696e67000000000000000000000000000000000000000000';
+            expect(optimizedCalldata).to.be.equal(expectedOptimizedCalldata);
+
+            // Verify args decode properly
+            const decodedArgs = method.decode(optimizedCalldata);
+            const decodedArgsJson = JSON.stringify(decodedArgs);
+            const argsJson = JSON.stringify(args);
+            expect(decodedArgsJson).to.be.equal(argsJson);
+
+            console.log('*'.repeat(100), '\n', method.encode(args, { optimize: true, annotate: true }), '\n', '*'.repeat(100));
+            console.log('*'.repeat(100), '\n', method.encode(args, { optimize: true }), '\n', '*'.repeat(100));
+        });
+
+
+        it('Optimizer #3 (tuple should point to array)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.optimizerAbi3);
+            const uint8Array = [
+                new BigNumber(100),
+                new BigNumber(150),
+                new BigNumber(200),
+                new BigNumber(225),
+            ];
+            const uintTupleArray = [[uint8Array[0]], [uint8Array[1]], [uint8Array[2]], [uint8Array[3]]];
+            const args = [uint8Array, uintTupleArray];
+
+
+            const TEST = method.encode(args, { optimize: true, annotate: true });
+            console.log('*'.repeat(50), ' ENCODED DATA ', TEST);
+
+            const optimizedCalldata = method.encode(args, { optimize: true });
+
+            console.log(`OPTIMIZED CALLDATA == '${optimizedCalldata}'`);
+            const decodedArgs = method.decode(optimizedCalldata);
+            const decodedArgsJson = JSON.stringify(decodedArgs);
+            const argsJson = JSON.stringify(args);
+            console.log(JSON.stringify(decodedArgs));
+            expect(decodedArgsJson).to.be.equal(argsJson);
+        });
+
+        it('Optimizer #4 (Expect no optimization)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.optimizerAbi4);
+            const uint8Array = [
+                new BigNumber(100),
+                new BigNumber(150),
+                new BigNumber(200),
+                new BigNumber(225),
+            ];
+            const uintTupleArray = [[uint8Array[0]], [uint8Array[1]], [uint8Array[2]], [uint8Array[3]]];
+            const args = [uint8Array, uintTupleArray];
+
+
+            const TEST = method.encode(args, { optimize: true, annotate: true });
+            console.log('*'.repeat(50), ' ENCODED DATA ', TEST);
+
+            const optimizedCalldata = method.encode(args, { optimize: true });
+
+            console.log(`OPTIMIZED CALLDATA == '${optimizedCalldata}'`);
+            const decodedArgs = method.decode(optimizedCalldata);
+            const decodedArgsJson = JSON.stringify(decodedArgs);
+            const argsJson = JSON.stringify(args);
+            console.log(JSON.stringify(decodedArgs));
+            expect(decodedArgsJson).to.be.equal(argsJson);
+        });
+
+        it('Crazy ABI', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.crazyAbi);
+            console.log(method.getSignature());
+
+            const someStaticArray = [new BigNumber(127), new BigNumber(14), new BigNumber(54)];
+            const someStaticArrayWithDynamicMembers = [
+                'the little piping piper piped a piping pipper papper',
+                'the kid knows how to write poems, what can I say -- I guess theres a lot I could say to try to fill this line with a lot of text.',
+            ];
+            const someDynamicArrayWithDynamicMembers = [
+                '0x38745637834987324827439287423897238947239847',
+                '0x7283472398237423984723984729847248927498748974284728947239487498749847874329423743492347329847239842374892374892374892347238947289478947489374289472894738942749823743298742389472389473289472389437249823749823742893472398',
+                '0x283473298473248923749238742398742398472894729843278942374982374892374892743982',
+            ];
+            const some2DArray = [
+                [
+                    'some string',
+                    'some another string',
+                    'there are just too many stringsup in',
+                    'here',
+                    'yall ghonna make me lose my mind',
+                ],
+                [
+                    'the little piping piper piped a piping pipper papper',
+                    'the kid knows how to write poems, what can I say -- I guess theres a lot I could say to try to fill this line with a lot of text.',
+                ],
+                [],
+            ];
+            const someTuple = {
+                someUint32: new BigNumber(4037824789),
+                someStr: 'the kid knows how to write poems, what can I say -- I guess theres a lot I could say to try to fill this line with a lot of text.'
+            };
+            const someTupleWithDynamicTypes = {
+                someUint: new BigNumber(4024789),
+                someStr: 'akdhjasjkdhasjkldshdjahdkjsahdajksdhsajkdhsajkdhadjkashdjksadhajkdhsajkdhsadjk',
+                someBytes: '0x29384723894723843743289742389472398473289472348927489274894738427428947389facdea',
+                someAddress: '0xe41d2489571d322189246dafa5ebde1f4699f498',
+            };
+            const someTupleWithDynamicTypes2 = {
+                someUint: new BigNumber(9024789),
+                someStr: 'ksdhsajkdhsajkdhadjkashdjksadhajkdhsajkdhsadjkakdhjasjkdhasjkldshdjahdkjsahdaj',
+                someBytes: '0x29384723894398473289472348927489272384374328974238947274894738427428947389facde1',
+                someAddress: '0x746dafa5ebde1f4699f4981d3221892e41d24895',
+            };
+            const someTupleWithDynamicTypes3 = {
+                someUint: new BigNumber(1024789),
+                someStr: 'sdhsajkdhsajkdhadjkashdjakdhjasjkdhasjkldshdjahdkjsahdajkksadhajkdhsajkdhsadjk',
+                someBytes: '0x38947238437432829384729742389472398473289472348927489274894738427428947389facdef',
+                someAddress: '0x89571d322189e415ebde1f4699f498d24246dafa',
+            };
+            const someArrayOfTuplesWithDynamicTypes = [someTupleWithDynamicTypes2, someTupleWithDynamicTypes3];
+
+            const args = {
+                someStaticArray: someStaticArray,
+                someStaticArrayWithDynamicMembers: someStaticArrayWithDynamicMembers,
+                someDynamicArrayWithDynamicMembers: someDynamicArrayWithDynamicMembers,
+                some2DArray: some2DArray,
+                someTuple: someTuple,
+                someTupleWithDynamicTypes: someTupleWithDynamicTypes,
+                someArrayOfTuplesWithDynamicTypes: someArrayOfTuplesWithDynamicTypes
+            };
+
+            const calldata = method.encode(args);
+            console.log(calldata);
+
+            console.log('*'.repeat(40));
+            console.log(JSON.stringify(args));
+            console.log(method.getSignature());
+
+            const expectedCalldata = '0x4b49031c000000000000000000000000000000000000000000000000000000000000007f000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000036000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000002800000000000000000000000000000000000000000000000000000000000000440000000000000000000000000000000000000000000000000000000000000088000000000000000000000000000000000000000000000000000000000000009800000000000000000000000000000000000000000000000000000000000000ae0000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000034746865206c6974746c6520706970696e67207069706572207069706564206120706970696e6720706970706572207061707065720000000000000000000000000000000000000000000000000000000000000000000000000000000000000081746865206b6964206b6e6f777320686f7720746f20777269746520706f656d732c20776861742063616e204920736179202d2d2049206775657373207468657265732061206c6f74204920636f756c642073617920746f2074727920746f2066696c6c2074686973206c696e6520776974682061206c6f74206f6620746578742e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000014000000000000000000000000000000000000000000000000000000000000000163874563783498732482743928742389723894723984700000000000000000000000000000000000000000000000000000000000000000000000000000000006e72834723982374239847239847298472489274987489742847289472394874987498478743294237434923473298472398423748923748923748923472389472894789474893742894728947389427498237432987423894723894732894723894372498237498237428934723980000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000027283473298473248923749238742398742398472894729843278942374982374892374892743982000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000002800000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000500000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000001c0000000000000000000000000000000000000000000000000000000000000000b736f6d6520737472696e670000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013736f6d6520616e6f7468657220737472696e67000000000000000000000000000000000000000000000000000000000000000000000000000000000000000024746865726520617265206a75737420746f6f206d616e7920737472696e6773757020696e0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046865726500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002079616c6c2067686f6e6e61206d616b65206d65206c6f7365206d79206d696e640000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000034746865206c6974746c6520706970696e67207069706572207069706564206120706970696e6720706970706572207061707065720000000000000000000000000000000000000000000000000000000000000000000000000000000000000081746865206b6964206b6e6f777320686f7720746f20777269746520706f656d732c20776861742063616e204920736179202d2d2049206775657373207468657265732061206c6f74204920636f756c642073617920746f2074727920746f2066696c6c2074686973206c696e6520776974682061206c6f74206f6620746578742e00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000f0ac511500000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000081746865206b6964206b6e6f777320686f7720746f20777269746520706f656d732c20776861742063616e204920736179202d2d2049206775657373207468657265732061206c6f74204920636f756c642073617920746f2074727920746f2066696c6c2074686973206c696e6520776974682061206c6f74206f6620746578742e0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003d69d50000000000000000000000000000000000000000000000000000000000000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+            //const expectedCalldata = '0x30e1f844000000000000000000000000000000000000000000000000000000000000007f000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000003600000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000260000000000000000000000000000000000000000000000000000000000000042000000000000000000000000000000000000000000000000000000000000008600000000000000000000000000000000000000000000000000000000000000960000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000034746865206c6974746c6520706970696e67207069706572207069706564206120706970696e6720706970706572207061707065720000000000000000000000000000000000000000000000000000000000000000000000000000000000000081746865206b6964206b6e6f777320686f7720746f20777269746520706f656d732c20776861742063616e204920736179202d2d2049206775657373207468657265732061206c6f74204920636f756c642073617920746f2074727920746f2066696c6c2074686973206c696e6520776974682061206c6f74206f6620746578742e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000014000000000000000000000000000000000000000000000000000000000000000163874563783498732482743928742389723894723984700000000000000000000000000000000000000000000000000000000000000000000000000000000006e72834723982374239847239847298472489274987489742847289472394874987498478743294237434923473298472398423748923748923748923472389472894789474893742894728947389427498237432987423894723894732894723894372498237498237428934723980000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000027283473298473248923749238742398742398472894729843278942374982374892374892743982000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000002800000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000500000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000001c0000000000000000000000000000000000000000000000000000000000000000b736f6d6520737472696e670000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013736f6d6520616e6f7468657220737472696e67000000000000000000000000000000000000000000000000000000000000000000000000000000000000000024746865726520617265206a75737420746f6f206d616e7920737472696e6773757020696e0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000046865726500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002079616c6c2067686f6e6e61206d616b65206d65206c6f7365206d79206d696e640000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000034746865206c6974746c6520706970696e67207069706572207069706564206120706970696e6720706970706572207061707065720000000000000000000000000000000000000000000000000000000000000000000000000000000000000081746865206b6964206b6e6f777320686f7720746f20777269746520706f656d732c20776861742063616e204920736179202d2d2049206775657373207468657265732061206c6f74204920636f756c642073617920746f2074727920746f2066696c6c2074686973206c696e6520776974682061206c6f74206f6620746578742e00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000f0ac511500000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000081746865206b6964206b6e6f777320686f7720746f20777269746520706f656d732c20776861742063616e204920736179202d2d2049206775657373207468657265732061206c6f74204920636f756c642073617920746f2074727920746f2066696c6c2074686973206c696e6520776974682061206c6f74206f6620746578742e0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000cf5763d5ec63d500600000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000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+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata, { structsAsObjects: true });
+            const decodedValueJson = JSON.stringify(decodedValue);
+            console.log(`DECODED`, '*'.repeat(200), '\n', decodedValueJson);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Crazy ABI #1', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.crazyAbi1);
+
+            const args = [
+                new BigNumber(256745454),
+                new BigNumber(-256745454),
+                new BigNumber(434244),
+                '0x43',
+                '0x0001020304050607080911121314151617181920212223242526272829303132',
+                '0x0001020304050607080911121314151617181920212223242526272829303132080911121314151617181920212223242526272829303132',
+                'Little peter piper piped a piping pepper pot',
+                '0xe41d2489571d322189246dafa5ebde1f4699f498',
+                true
+            ];
+
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0x312d4d42000000000000000000000000000000000000000000000000000000000f4d9feefffffffffffffffffffffffffffffffffffffffffffffffffffffffff0b26012000000000000000000000000000000000000000000000000000000000006a0444300000000000000000000000000000000000000000000000000000000000000000102030405060708091112131415161718192021222324252627282930313200000000000000000000000000000000000000000000000000000000000001200000000000000000000000000000000000000000000000000000000000000180000000000000000000000000e41d2489571d322189246dafa5ebde1f4699f4980000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000003800010203040506070809111213141516171819202122232425262728293031320809111213141516171819202122232425262728293031320000000000000000000000000000000000000000000000000000000000000000000000000000002c4c6974746c65207065746572207069706572207069706564206120706970696e672070657070657220706f740000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+
+        it('Types with default widths', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.typesWithDefaultWidthsAbi);
+            console.log(method);
+            const args = [new BigNumber(1), new BigNumber(-1), '0x56', [new BigNumber(1)], [new BigNumber(-1)], ['0x56']];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0x09f2b0c30000000000000000000000000000000000000000000000000000000000000001ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff560000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000140000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff00000000000000000000000000000000000000000000000000000000000000015600000000000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Array of Static Tuples (Array has defined length)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.arrayOfStaticTuplesWithDefinedLengthAbi);
+
+            let value = 0;
+            const arrayOfTuples = [];
+            for (let i = 0; i < 8; ++i) {
+                arrayOfTuples.push([new BigNumber(++value), new BigNumber(++value)]);
+            }
+            const args = [arrayOfTuples];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0x9eb20969000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000700000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000d000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000f0000000000000000000000000000000000000000000000000000000000000010';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Array of Static Tuples (Array has dynamic length)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.arrayOfStaticTuplesWithDynamicLengthAbi);
+
+            let value = 0;
+            const arrayOfTuples = [];
+            for (let i = 0; i < 8; ++i) {
+                arrayOfTuples.push([new BigNumber(++value), new BigNumber(++value)]);
+            }
+            const args = [arrayOfTuples];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0x63275d6e00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000700000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000d000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000f0000000000000000000000000000000000000000000000000000000000000010';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Array of Dynamic Tuples (Array has defined length)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.arrayOfDynamicTuplesWithDefinedLengthAbi);
+
+            let value = 0;
+            const arrayOfTuples = [];
+            for (let i = 0; i < 8; ++i) {
+                arrayOfTuples.push([new BigNumber(++value), (new BigNumber(++value)).toString()]);
+            }
+            const args = [arrayOfTuples];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0xdeedb00f00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000280000000000000000000000000000000000000000000000000000000000000030000000000000000000000000000000000000000000000000000000000000003800000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000048000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000132000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000013400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000500000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000001360000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000070000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000138000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023130000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023132000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023134000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000f000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023136000000000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Array of Dynamic Tuples (Array has dynamic length)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.arrayOfDynamicTuplesWithUndefinedLengthAbi);
+
+            let value = 0;
+            const arrayOfTuples = [];
+            for (let i = 0; i < 8; ++i) {
+                arrayOfTuples.push([new BigNumber(++value), (new BigNumber(++value)).toString()]);
+            }
+            const args = [arrayOfTuples];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0x60c847fb000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000280000000000000000000000000000000000000000000000000000000000000030000000000000000000000000000000000000000000000000000000000000003800000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000048000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000132000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000013400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000500000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000001360000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000070000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000138000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023130000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023132000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023134000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000f000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000023136000000000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Multidimensional Arrays / Static Members', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.multiDimensionalArraysStaticTypeAbi);
+
+            // Eight 3-dimensional arrays of uint8[2][2][2]
+            let value = 0;
+            const args = [];
+            for (let i = 0; i < 8; ++i) {
+                args.push(
+                    [
+                        [
+                            [new BigNumber(++value), new BigNumber(++value)],
+                            [new BigNumber(++value), new BigNumber(++value)],
+                        ],
+                        [
+                            [new BigNumber(++value), new BigNumber(++value)],
+                            [new BigNumber(++value), new BigNumber(++value)],
+                        ]
+                    ]
+                );
+            }
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0xc2f47d6f00000000000000000000000000000000000000000000000000000000000001e00000000000000000000000000000000000000000000000000000000000000480000000000000000000000000000000000000000000000000000000000000070000000000000000000000000000000000000000000000000000000000000009600000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000000d400000000000000000000000000000000000000000000000000000000000000e600000000000000000000000000000000000000000000000000000000000000039000000000000000000000000000000000000000000000000000000000000003a000000000000000000000000000000000000000000000000000000000000003b000000000000000000000000000000000000000000000000000000000000003c000000000000000000000000000000000000000000000000000000000000003d000000000000000000000000000000000000000000000000000000000000003e000000000000000000000000000000000000000000000000000000000000003f00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000001600000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000070000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000001600000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000000c0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000d000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000f0000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000140000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000130000000000000000000000000000000000000000000000000000000000000014000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000150000000000000000000000000000000000000000000000000000000000000016000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000170000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000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expect(calldata).to.be.equal(expectedCalldata);
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Multidimensional Arrays / Dynamic Members', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.multiDimensionalArraysDynamicTypeAbi);
+
+            // Eight 3-dimensional arrays of string[2][2][2]
+            let value = 0;
+            const args = [];
+            for (let i = 0; i < 4; ++i) {
+                args.push(
+                    [
+                        [
+                            [new BigNumber(++value).toString(), new BigNumber(++value).toString()],
+                            [new BigNumber(++value).toString(), new BigNumber(++value).toString()],
+                        ],
+                        [
+                            [new BigNumber(++value).toString(), new BigNumber(++value).toString()],
+                            [new BigNumber(++value).toString(), new BigNumber(++value).toString()],
+                        ]
+                    ]
+                );
+            }
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(method.getSignature());
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0x81534ebd0000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000052000000000000000000000000000000000000000000000000000000000000009a00000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000026000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000013100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000132000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000001330000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000013400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000135000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001360000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000013700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000138000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000026000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000013900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000231300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000002313100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000023132000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000231330000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002313400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000023135000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000231360000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000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+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Fixed Lenfgth Array / Dynamic Members', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.staticArrayDynamicMembersAbi);
+            const args = [["Brave", "New", "World"]];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(JSON.stringify(args));
+            const expectedCalldata =
+                '0x243a6e6e0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000005427261766500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034e657700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005576f726c64000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Fixed Lenfgth Array / Dynamic Members', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.staticArrayDynamicMembersAbi);
+            const args = [["Brave", "New", "World"]];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(JSON.stringify(args));
+            const expectedCalldata =
+                '0x243a6e6e0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000005427261766500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034e657700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005576f726c64000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Unfixed Length Array / Dynamic Members ABI', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.dynamicArrayDynamicMembersAbi);
+            const args = [["Brave", "New", "World"]];
+            const calldata = method.encode(args);
+            console.log(calldata);
+            console.log('*'.repeat(40));
+            console.log(JSON.stringify(args));
+            const expectedCalldata = '0x13e751a900000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000005427261766500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000034e657700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005576f726c64000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Unfixed Length Array / Static Members ABI', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.dynamicArrayStaticMembersAbi);
+            const args = [[new BigNumber(127), new BigNumber(14), new BigNumber(54)]];
+            const calldata = method.encode(args);
+            const expectedCalldata = '0x4fc8a83300000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000007f000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000036';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+
+        it('Fixed Length Array / Static Members ABI', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.staticArrayAbi);
+            const args = [[new BigNumber(127), new BigNumber(14), new BigNumber(54)]];
+            const calldata = method.encode(args);
+            const expectedCalldata =
+                '0xf68ade72000000000000000000000000000000000000000000000000000000000000007f000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000036';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+
+        it('Simple ABI 2', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.simpleAbi2);
+
+            const args = [
+                '0xaf', // e (bytes1)
+                '0x0001020304050607080911121314151617181920212223242526272829303132', // f (bytes32)
+                '0x616161616161616161616161616161616161616161616161616161616161616161616161616161611114f324567838475647382938475677448899338457668899002020202020', // g
+                'My first name is Greg and my last name is Hysen, what do ya know!', // h
+            ];
+
+            const calldata = method.encode(args);
+            const expectedCalldata =
+                '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';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Array ABI', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.stringAbi);
+            console.log(method);
+            const args = [['five', 'six', 'seven']];
+            const calldata = method.encode(args);
+            console.log(method.getSignature());
+            console.log(method.selector);
+
+            console.log(calldata);
+            const expectedCalldata =
+                '0x13e751a900000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000046669766500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000373697800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005736576656e000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Static Tuple', async () => {
+            // This is dynamic because it has dynamic members
+            const method = new AbiEncoder.Method(AbiSamples.staticTupleAbi);
+            const args = [[new BigNumber(5), new BigNumber(10), new BigNumber(15), false]];
+            const calldata = method.encode(args);
+            console.log(method.getSignature());
+            console.log(method.selector);
+
+            console.log(calldata);
+            const expectedCalldata = '0xa9125e150000000000000000000000000000000000000000000000000000000000000005000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000f0000000000000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Dynamic Tuple (Array input)', async () => {
+            // This is dynamic because it has dynamic members
+            const method = new AbiEncoder.Method(AbiSamples.dynamicTupleAbi);
+            const args = [[new BigNumber(5), 'five']];
+            const calldata = method.encode(args);
+            console.log(method.getSignature());
+            console.log(method.selector);
+
+            console.log(calldata);
+            const expectedCalldata =
+                '0x5b998f3500000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000005000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000046669766500000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+
+            // Test decoding
+            const expectedDecodedValueJson = JSON.stringify(args);
+            const decodedValue = method.decode(calldata);
+            const decodedValueJson = JSON.stringify(decodedValue);
+            expect(decodedValueJson).to.be.equal(expectedDecodedValueJson);
+        });
+
+        it('Dynamic Tuple (Object input)', async () => {
+            // This is dynamic because it has dynamic members
+            const method = new AbiEncoder.Method(AbiSamples.dynamicTupleAbi);
+            const calldata = method.encode([{ someUint: new BigNumber(5), someStr: 'five' }]);
+            console.log(method.getSignature());
+            console.log(method.selector);
+
+            console.log(calldata);
+            const expectedCalldata =
+                '0x5b998f3500000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000005000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000046669766500000000000000000000000000000000000000000000000000000000';
+            expect(calldata).to.be.equal(expectedCalldata);
+        });
+
+        it.skip('Nested Tuples', async () => {
+            // Couldn't get nested tuples to work with Remix
+            // This is dynamic because it has dynamic members
+            const method = new AbiEncoder.Method(AbiSamples.nestedTuples);
+            const firstTuple = {
+                someUint32: new BigNumber(30472),
+                nestedTuple: {
+                    someUint: new BigNumber('48384725243211555532'),
+                    someAddress: '0xe41d2489571d322189246dafa5ebde1f4699f498'
+                }
+            };
+            const secondTuple = {
+                someUint: new BigNumber(2984237422),
+                someStr: 'This string will exceed 256 bits, so it will spill into the next word of memory.',
+                nestedTuple: {
+                    someUint32: new BigNumber(23),
+                    secondNestedTuple: {
+                        someUint: new BigNumber(234324),
+                        someStr: 'Im also a short string -- oops I just got loooooooooooooooooonger!',
+                        someBytes: '0x23847287fff3472984723498ff23487324987aaa237438911873429472ba',
+                        someAddress: '0xe41d2489571d322189246dafa5ebde1f4699f498'
+                    }
+                },
+                someBytes: '0x2834y3947289423u489aaaff4783924739847489',
+                someAddress: '0xe41d2489571d322189246dafa5ebde1f4699afaf',
+            };
+            const thirdTuple = {
+                'someUint': new BigNumber(37422),
+                'someStr': 'This into the next word of memory. string will exceed 256 bits, so it will spill.',
+                'nestedTuple': {
+                    someUint32: new BigNumber(23999222),
+                    'secondNestedTuple': {
+                        'someUint': new BigNumber(324),
+                        'someStr': 'Im also a short st',
+                        'someBytes': '0x723498ff2348732498723847287fff3472984aaa237438911873429472ba',
+                        'someAddress': '0x46dafa5ebde1f4699f498e41d2489571d3221892'
+                    }
+                },
+                'someBytes': '0x947289423u489aaaff472834y383924739847489',
+                'someAddress': '0x46dafa5ebde1f46e41d2489571d322189299afaf',
+            };
+            const fourthTuple = {
+                'someUint': new BigNumber(222283488822),
+                'someStr': 'exceed 256 bits, so it will spill into the. This string will next word of memory.',
+                'nestedTuple': {
+                    someUint32: new BigNumber(2300),
+                    'secondNestedTuple': {
+                        'someUint': new BigNumber(343224),
+                        'someStr': 'The alphabet backwards is arguably easier to say if thats the way you learned the first time.',
+                        'someBytes': '0x87324987aaa23743891187323847287fff3472984723498ff234429472ba',
+                        'someAddress': '0x71d322189246dafa5ebe41d24895de1f4699f498'
+                    }
+                },
+                'someBytes': '0x2783924739847488343947289423u489aaaff490',
+                'someAddress': '0xebde1d322189246dafa1f4699afafe41d2489575',
+            };
+            const args = [
+                [firstTuple],
+                [secondTuple, thirdTuple, fourthTuple]
+            ];
+
+            console.log('*'.repeat(250), method, '*'.repeat(250));
+
+
+            const calldata = method.encode(args);
+            console.log(method.getSignature());
+            console.log(method.selector);
+            console.log(JSON.stringify(args));
+
+            console.log(calldata);
+            const expectedCalldata = '0x';
+            expect(calldata).to.be.equal(expectedCalldata);
+        });
+
+        it.skip('Object ABI (Object input - Missing Key)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.dynamicTupleAbi);
+            const calldata = method.encode([{ someUint: new BigNumber(5) }]);
+            console.log(method.getSignature());
+            console.log(method.selector);
+
+            console.log(calldata);
+            const expectedCalldata =
+                '0x5b998f3500000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000005000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000046669766500000000000000000000000000000000000000000000000000000000';
+
+            // @TODO: Figure out how to catch throw
+            expect(calldata).to.be.equal(expectedCalldata);
+        });
+
+        it.skip('Object ABI (Object input - Too Many Keys)', async () => {
+            const method = new AbiEncoder.Method(AbiSamples.dynamicTupleAbi);
+            const calldata = method.encode([{ someUint: new BigNumber(5), someStr: 'five', unwantedKey: 14 }]);
+            console.log(method.getSignature());
+            console.log(method.selector);
+
+            console.log(calldata);
+            const expectedCalldata =
+                '0x5b998f3500000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000005000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000046669766500000000000000000000000000000000000000000000000000000000';
+
+            // @TODO: Figure out how to catch throw
+            expect(calldata).to.be.equal(expectedCalldata);
+        });
+    });
+    /*
+        describe('Array', () => {
+            it('sample', async () => {
+                const testDataItem = { name: 'testArray', type: 'int[2]' };
+                const dataType = new AbiEncoder.SolArray(testDataItem);
+                console.log(JSON.stringify(dataType, null, 4));
+                console.log('*'.repeat(60));
+                dataType.assignValue([new BigNumber(5), new BigNumber(6)]);
+                console.log(JSON.stringify(dataType, null, 4));
+                const hexValue = dataType.getHexValue();
+                console.log('*'.repeat(60));
+                console.log(hexValue);
+            });
+    
+            it('sample undefined size', async () => {
+                const testDataItem = { name: 'testArray', type: 'int[]' };
+                const dataType = new AbiEncoder.SolArray(testDataItem);
+                console.log(JSON.stringify(dataType, null, 4));
+                console.log('*'.repeat(60));
+                dataType.assignValue([new BigNumber(5), new BigNumber(6)]);
+                console.log(JSON.stringify(dataType, null, 4));
+                const hexValue = dataType.getHexValue();
+                console.log('*'.repeat(60));
+                console.log(hexValue);
+            });
+    
+            it('sample dynamic types', async () => {
+                const testDataItem = { name: 'testArray', type: 'string[]' };
+                const dataType = new AbiEncoder.SolArray(testDataItem);
+                console.log(JSON.stringify(dataType, null, 4));
+                console.log('*'.repeat(60));
+                dataType.assignValue(['five', 'six', 'seven']);
+                console.log(JSON.stringify(dataType, null, 4));
+                const hexValue = dataType.getHexValue();
+                console.log('*'.repeat(60));
+                console.log(hexValue);
+                const calldata = new AbiEncoder.Calldata('0x01020304', 1);
+                dataType.bind(calldata, AbiEncoder.CalldataSection.PARAMS);
+                console.log('*'.repeat(60));
+                console.log(calldata.getHexValue());
+            });
+        });
+    
+        describe('Address', () => {
+            const testAddressDataItem = { name: 'testAddress', type: 'address' };
+            it('Valid Address', async () => {
+                const addressDataType = new AbiEncoder.Address(testAddressDataItem);
+                addressDataType.assignValue('0xe41d2489571d322189246dafa5ebde1f4699f498');
+                const expectedAbiEncodedAddress = '0x000000000000000000000000e41d2489571d322189246dafa5ebde1f4699f498';
+    
+                console.log(addressDataType.getHexValue());
+                console.log(expectedAbiEncodedAddress);
+                expect(addressDataType.getHexValue()).to.be.equal(expectedAbiEncodedAddress);
+            });
+        });
+    
+        describe('Bool', () => {
+            const testBoolDataItem = { name: 'testBool', type: 'bool' };
+            it('True', async () => {
+                const boolDataType = new AbiEncoder.Bool(testBoolDataItem);
+                boolDataType.assignValue(true);
+                const expectedAbiEncodedBool = '0x0000000000000000000000000000000000000000000000000000000000000001';
+                expect(boolDataType.getHexValue()).to.be.equal(expectedAbiEncodedBool);
+            });
+    
+            it('False', async () => {
+                const boolDataType = new AbiEncoder.Bool(testBoolDataItem);
+                boolDataType.assignValue(false);
+                const expectedAbiEncodedBool = '0x0000000000000000000000000000000000000000000000000000000000000000';
+                expect(boolDataType.getHexValue()).to.be.equal(expectedAbiEncodedBool);
+            });
+        });
+    
+        describe('Integer', () => {
+            const testIntDataItem = { name: 'testInt', type: 'int' };
+            it('Positive - Base case', async () => {
+                const intDataType = new AbiEncoder.Int(testIntDataItem);
+                intDataType.assignValue(new BigNumber(1));
+                const expectedAbiEncodedInt = '0x0000000000000000000000000000000000000000000000000000000000000001';
+                expect(intDataType.getHexValue()).to.be.equal(expectedAbiEncodedInt);
+            });
+    
+            it('Positive', async () => {
+                const intDataType = new AbiEncoder.Int(testIntDataItem);
+                intDataType.assignValue(new BigNumber(437829473));
+                const expectedAbiEncodedInt = '0x000000000000000000000000000000000000000000000000000000001a18bf61';
+                expect(intDataType.getHexValue()).to.be.equal(expectedAbiEncodedInt);
+            });
+    
+            it('Negative - Base case', async () => {
+                const intDataType = new AbiEncoder.Int(testIntDataItem);
+                intDataType.assignValue(new BigNumber(-1));
+                const expectedAbiEncodedInt = '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff';
+                expect(intDataType.getHexValue()).to.be.equal(expectedAbiEncodedInt);
+            });
+    
+            it('Negative', async () => {
+                const intDataType = new AbiEncoder.Int(testIntDataItem);
+                intDataType.assignValue(new BigNumber(-437829473));
+                const expectedAbiEncodedInt = '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffe5e7409f';
+                expect(intDataType.getHexValue()).to.be.equal(expectedAbiEncodedInt);
+            });
+    
+            // TODO: Add bounds tests + tests for different widths
+        });
+    
+        describe('Unsigned Integer', () => {
+            const testIntDataItem = { name: 'testUInt', type: 'uint' };
+            it('Lower Bound', async () => {
+                const uintDataType = new AbiEncoder.UInt(testIntDataItem);
+                uintDataType.assignValue(new BigNumber(0));
+                const expectedAbiEncodedUInt = '0x0000000000000000000000000000000000000000000000000000000000000000';
+                expect(uintDataType.getHexValue()).to.be.equal(expectedAbiEncodedUInt);
+            });
+    
+            it('Base Case', async () => {
+                const uintDataType = new AbiEncoder.UInt(testIntDataItem);
+                uintDataType.assignValue(new BigNumber(1));
+                const expectedAbiEncodedUInt = '0x0000000000000000000000000000000000000000000000000000000000000001';
+                expect(uintDataType.getHexValue()).to.be.equal(expectedAbiEncodedUInt);
+            });
+    
+            it('Random value', async () => {
+                const uintDataType = new AbiEncoder.UInt(testIntDataItem);
+                uintDataType.assignValue(new BigNumber(437829473));
+                const expectedAbiEncodedUInt = '0x000000000000000000000000000000000000000000000000000000001a18bf61';
+                expect(uintDataType.getHexValue()).to.be.equal(expectedAbiEncodedUInt);
+            });
+    
+            // TODO: Add bounds tests + tests for different widths
+        });
+    
+        describe('Static Bytes', () => {
+            it('Byte (padded)', async () => {
+                const testByteDataItem = { name: 'testStaticBytes', type: 'byte' };
+                const byteDataType = new AbiEncoder.Byte(testByteDataItem);
+                byteDataType.assignValue('0x05');
+                const expectedAbiEncodedByte = '0x0500000000000000000000000000000000000000000000000000000000000000';
+                expect(byteDataType.getHexValue()).to.be.equal(expectedAbiEncodedByte);
+            });
+    
+            it.skip('Byte (no padding)', async () => {
+                const testByteDataItem = { name: 'testStaticBytes', type: 'byte' };
+                const byteDataType = new AbiEncoder.Byte(testByteDataItem);
+    
+                // @TODO: This does not catch the Error
+                expect(byteDataType.assignValue('0x5')).to.throw();
+            });
+    
+            it('Bytes1', async () => {
+                const testByteDataItem = { name: 'testStaticBytes', type: 'bytes1' };
+                const byteDataType = new AbiEncoder.Byte(testByteDataItem);
+                byteDataType.assignValue('0x05');
+                const expectedAbiEncodedByte = '0x0500000000000000000000000000000000000000000000000000000000000000';
+                expect(byteDataType.getHexValue()).to.be.equal(expectedAbiEncodedByte);
+            });
+    
+            it('Bytes32 (padded)', async () => {
+                const testByteDataItem = { name: 'testStaticBytes', type: 'bytes32' };
+                const byteDataType = new AbiEncoder.Byte(testByteDataItem);
+                byteDataType.assignValue('0x0001020304050607080911121314151617181920212223242526272829303132');
+                const expectedAbiEncodedByte = '0x0001020304050607080911121314151617181920212223242526272829303132';
+                expect(byteDataType.getHexValue()).to.be.equal(expectedAbiEncodedByte);
+            });
+    
+            it('Bytes32 (unpadded)', async () => {
+                const testByteDataItem = { name: 'testStaticBytes', type: 'bytes32' };
+                const byteDataType = new AbiEncoder.Byte(testByteDataItem);
+                byteDataType.assignValue('0x1a18bf61');
+                const expectedAbiEncodedByte = '0x1a18bf6100000000000000000000000000000000000000000000000000000000';
+                expect(byteDataType.getHexValue()).to.be.equal(expectedAbiEncodedByte);
+            });
+    
+            it.skip('Bytes32 - Too long', async () => {
+                const testByteDataItem = { name: 'testStaticBytes', type: 'bytes32' };
+                const byteDataType = new AbiEncoder.Byte(testByteDataItem);
+    
+                // @TODO: This does not catch the Error
+                expect(
+                    byteDataType.assignValue('0x000102030405060708091112131415161718192021222324252627282930313233'),
+                ).to.throw(
+                    `Tried to assign 0x000102030405060708091112131415161718192021222324252627282930313233 (33 bytes), which exceeds max bytes that can be stored in a bytes32`,
+                );
+            });
+        });
+    
+        describe('Bytes (Dynamic)', () => {
+            const testBytesDataItem = { name: 'testBytes', type: 'bytes' };
+            it('Less than 32 bytes', async () => {
+                const bytesDataType = new AbiEncoder.Bytes(testBytesDataItem);
+                bytesDataType.assignValue('0x010203');
+                const expectedAbiEncodedBytes =
+                    '0x00000000000000000000000000000000000000000000000000000000000000030102030000000000000000000000000000000000000000000000000000000000';
+    
+                expect(bytesDataType.getHexValue()).to.be.equal(expectedAbiEncodedBytes);
+            });
+    
+            it('Greater than 32 bytes', async () => {
+                const bytesDataType = new AbiEncoder.Bytes(testBytesDataItem);
+                const testValue = '0x' + '61'.repeat(40);
+                bytesDataType.assignValue(testValue);
+                const expectedAbiEncodedBytes =
+                    '0x000000000000000000000000000000000000000000000000000000000000002861616161616161616161616161616161616161616161616161616161616161616161616161616161000000000000000000000000000000000000000000000000';
+                expect(bytesDataType.getHexValue()).to.be.equal(expectedAbiEncodedBytes);
+            });
+    
+            // @TODO: Add test for throw on half-byte
+            // @TODO: Test with no 0x prefix
+            // @TODO: Test with Buffer as input
+        });
+    
+        describe('String', () => {
+            const testStringDataItem = { name: 'testString', type: 'string' };
+            it('Less than 32 bytes', async () => {
+                const stringDataType = new AbiEncoder.SolString(testStringDataItem);
+                stringDataType.assignValue('five');
+                const expectedAbiEncodedString =
+                    '0x00000000000000000000000000000000000000000000000000000000000000046669766500000000000000000000000000000000000000000000000000000000';
+    
+                console.log(stringDataType.getHexValue());
+                console.log(expectedAbiEncodedString);
+                expect(stringDataType.getHexValue()).to.be.equal(expectedAbiEncodedString);
+            });
+    
+            it('Greater than 32 bytes', async () => {
+                const stringDataType = new AbiEncoder.SolString(testStringDataItem);
+                const testValue = 'a'.repeat(40);
+                stringDataType.assignValue(testValue);
+                const expectedAbiEncodedString =
+                    '0x000000000000000000000000000000000000000000000000000000000000002861616161616161616161616161616161616161616161616161616161616161616161616161616161000000000000000000000000000000000000000000000000';
+                expect(stringDataType.getHexValue()).to.be.equal(expectedAbiEncodedString);
+            });
+        });*/
+});
diff --git a/packages/utils/test/abi_samples.ts b/packages/utils/test/abi_samples.ts
new file mode 100644
index 000000000..5e8268f1a
--- /dev/null
+++ b/packages/utils/test/abi_samples.ts
@@ -0,0 +1,814 @@
+import { MethodAbi } from 'ethereum-types';
+
+export const simpleAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'greg',
+            type: 'uint256',
+        },
+        {
+            name: 'gregStr',
+            type: 'string',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const stringAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'greg',
+            type: 'string[]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const optimizerAbi2 = {
+    constant: false,
+    inputs: [
+        {
+            name: 'stringArray',
+            type: 'string[]',
+        },
+        {
+            name: 'string',
+            type: 'string',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const optimizerAbi3 = {
+    constant: false,
+    inputs: [
+        {
+            name: 'uint8Array',
+            type: 'uint8[]',
+        },
+        {
+            components: [
+                {
+                    name: 'uint',
+                    type: 'uint',
+                },
+            ],
+            name: 'uintTuple',
+            type: 'tuple[]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const optimizerAbi4 = {
+    constant: false,
+    inputs: [
+        {
+            name: 'uint8Array',
+            type: 'uint8[4]',
+        },
+        {
+            components: [
+                {
+                    name: 'uint',
+                    type: 'uint',
+                },
+            ],
+            name: 'uintTuple',
+            type: 'tuple[]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const typesWithDefaultWidthsAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someUint',
+            type: 'uint',
+        },
+        {
+            name: 'someInt',
+            type: 'int',
+        },
+        {
+            name: 'someByte',
+            type: 'byte',
+        },
+        {
+            name: 'someUint',
+            type: 'uint[]',
+        },
+        {
+            name: 'someInt',
+            type: 'int[]',
+        },
+        {
+            name: 'someByte',
+            type: 'byte[]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const multiDimensionalArraysStaticTypeAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'a',
+            type: 'uint8[][][]',
+        },
+        {
+            name: 'b',
+            type: 'uint8[][][2]',
+        },
+        {
+            name: 'c',
+            type: 'uint8[][2][]',
+        },
+        {
+            name: 'd',
+            type: 'uint8[2][][]',
+        },
+        {
+            name: 'e',
+            type: 'uint8[][2][2]',
+        },
+        {
+            name: 'f',
+            type: 'uint8[2][2][]',
+        },
+        {
+            name: 'g',
+            type: 'uint8[2][][2]',
+        },
+        {
+            name: 'h',
+            type: 'uint8[2][2][2]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const multiDimensionalArraysDynamicTypeAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'a',
+            type: 'string[][][]',
+        },
+        {
+            name: 'b',
+            type: 'string[][][2]',
+        },
+        {
+            name: 'c',
+            type: 'string[][2][]',
+        },
+        {
+            name: 'h',
+            type: 'string[2][2][2]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const dynamicTupleAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someStr',
+                    type: 'string',
+                },
+            ],
+            name: 'order',
+            type: 'tuple',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const arrayOfStaticTuplesWithDefinedLengthAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someUint2',
+                    type: 'uint256',
+                },
+            ],
+            name: 'order',
+            type: 'tuple[8]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const arrayOfStaticTuplesWithDynamicLengthAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someUint2',
+                    type: 'uint256',
+                },
+            ],
+            name: 'order',
+            type: 'tuple[]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const arrayOfDynamicTuplesWithDefinedLengthAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someString',
+                    type: 'string',
+                },
+            ],
+            name: 'order',
+            type: 'tuple[8]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const arrayOfDynamicTuplesWithUndefinedLengthAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someString',
+                    type: 'string',
+                },
+            ],
+            name: 'order',
+            type: 'tuple[]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const arrayOfDynamicTuplesAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someString',
+                    type: 'string',
+                },
+            ],
+            name: 'order',
+            type: 'tuple[]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const multidimensionalArrayOfDynamicTuplesAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someString',
+                    type: 'string',
+                },
+            ],
+            name: 'order',
+            type: 'tuple[][2][]',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const staticTupleAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'someUint1',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someUint2',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someUint3',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someBool',
+                    type: 'bool',
+                },
+            ],
+            name: 'order',
+            type: 'tuple',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const staticArrayAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someStaticArray',
+            type: 'uint8[3]',
+        }
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const staticArrayDynamicMembersAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someStaticArray',
+            type: 'string[3]',
+        }
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const dynamicArrayDynamicMembersAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someStaticArray',
+            type: 'string[]',
+        }
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const dynamicArrayStaticMembersAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someStaticArray',
+            type: 'uint8[]',
+        }
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const crazyAbi1 = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someUInt256',
+            type: 'uint256',
+        },
+        {
+            name: 'someInt256',
+            type: 'int256',
+        },
+        {
+            name: 'someInt32',
+            type: 'int32',
+        },
+        {
+            name: 'someByte',
+            type: 'byte',
+        },
+        {
+            name: 'someBytes32',
+            type: 'bytes32',
+        },
+        {
+            name: 'someBytes',
+            type: 'bytes',
+        },
+        {
+            name: 'someString',
+            type: 'string',
+        },
+        {
+            name: 'someAddress',
+            type: 'address',
+        },
+        {
+            name: 'someBool',
+            type: 'bool',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const crazyAbi = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someStaticArray',
+            type: 'uint8[3]',
+        },
+        {
+            name: 'someStaticArrayWithDynamicMembers',
+            type: 'string[2]',
+        },
+        {
+            name: 'someDynamicArrayWithDynamicMembers',
+            type: 'bytes[]',
+        },
+        {
+            name: 'some2DArray',
+            type: 'string[][]',
+        },
+        {
+            name: 'someTuple',
+            type: 'tuple',
+            components: [
+                {
+                    name: 'someUint32',
+                    type: 'uint32',
+                },
+                {
+                    name: 'someStr',
+                    type: 'string',
+                },
+            ],
+        },
+        {
+            name: 'someTupleWithDynamicTypes',
+            type: 'tuple',
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someStr',
+                    type: 'string',
+                },
+                /*{
+                    name: 'someStrArray',
+                    type: 'string[]',
+                },*/
+                {
+                    name: 'someBytes',
+                    type: 'bytes',
+                },
+                {
+                    name: 'someAddress',
+                    type: 'address',
+                },
+            ],
+        },
+        {
+            name: 'someArrayOfTuplesWithDynamicTypes',
+            type: 'tuple[]',
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someStr',
+                    type: 'string',
+                },
+                /*{
+                    name: 'someStrArray',
+                    type: 'string[]',
+                },*/
+                {
+                    name: 'someBytes',
+                    type: 'bytes',
+                },
+                {
+                    name: 'someAddress',
+                    type: 'address',
+                },
+            ],
+        }
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const nestedTuples = {
+    constant: false,
+    inputs: [
+        {
+            name: 'firstTuple',
+            type: 'tuple[1]',
+            components: [
+                {
+                    name: 'someUint32',
+                    type: 'uint32',
+                },
+                {
+                    name: 'nestedTuple',
+                    type: 'tuple',
+                    components: [
+                        {
+                            name: 'someUint',
+                            type: 'uint256',
+                        },
+                        {
+                            name: 'someAddress',
+                            type: 'address',
+                        },
+                    ],
+                },
+            ],
+        },
+        {
+            name: 'secondTuple',
+            type: 'tuple[]',
+            components: [
+                {
+                    name: 'someUint',
+                    type: 'uint256',
+                },
+                {
+                    name: 'someStr',
+                    type: 'string',
+                },
+                {
+                    name: 'nestedTuple',
+                    type: 'tuple',
+                    components: [
+                        {
+                            name: 'someUint32',
+                            type: 'uint32',
+                        },
+                        {
+                            name: 'secondNestedTuple',
+                            type: 'tuple',
+                            components: [
+                                {
+                                    name: 'someUint',
+                                    type: 'uint256',
+                                },
+                                {
+                                    name: 'someStr',
+                                    type: 'string',
+                                },
+                                {
+                                    name: 'someBytes',
+                                    type: 'bytes',
+                                },
+                                {
+                                    name: 'someAddress',
+                                    type: 'address',
+                                },
+                            ],
+                        },
+                    ],
+                },
+                {
+                    name: 'someBytes',
+                    type: 'bytes',
+                },
+                {
+                    name: 'someAddress',
+                    type: 'address',
+                },
+            ],
+        }
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const simpleAbi2 = {
+    constant: false,
+    inputs: [
+        {
+            name: 'someByte',
+            type: 'byte',
+        },
+        {
+            name: 'someBytes32',
+            type: 'bytes32',
+        },
+        {
+            name: 'someBytes',
+            type: 'bytes',
+        },
+        {
+            name: 'someString',
+            type: 'string',
+        },
+    ],
+    name: 'simpleFunction',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
+
+export const fillOrderAbi = {
+    constant: false,
+    inputs: [
+        {
+            components: [
+                {
+                    name: 'makerAddress',
+                    type: 'address',
+                },
+                {
+                    name: 'takerAddress',
+                    type: 'address',
+                },
+                {
+                    name: 'feeRecipientAddress',
+                    type: 'address',
+                },
+                {
+                    name: 'senderAddress',
+                    type: 'address',
+                },
+                {
+                    name: 'makerAssetAmount',
+                    type: 'uint256',
+                },
+                {
+                    name: 'takerAssetAmount',
+                    type: 'uint256',
+                },
+                {
+                    name: 'makerFee',
+                    type: 'uint256',
+                },
+                {
+                    name: 'takerFee',
+                    type: 'uint256',
+                },
+                {
+                    name: 'expirationTimeSeconds',
+                    type: 'uint256',
+                },
+                {
+                    name: 'salt',
+                    type: 'uint256',
+                },
+                {
+                    name: 'makerAssetData',
+                    type: 'bytes',
+                },
+                {
+                    name: 'takerAssetData',
+                    type: 'bytes',
+                },
+            ],
+            name: 'order',
+            type: 'tuple',
+        },
+        {
+            name: 'takerAssetFillAmount',
+            type: 'uint256',
+        },
+        {
+            name: 'salt',
+            type: 'uint256',
+        },
+        {
+            name: 'orderSignature',
+            type: 'bytes',
+        },
+        {
+            name: 'takerSignature',
+            type: 'bytes',
+        },
+    ],
+    name: 'fillOrder',
+    outputs: [],
+    payable: false,
+    stateMutability: 'nonpayable',
+    type: 'function',
+} as MethodAbi;
diff --git a/packages/utils/test/utils/chai_setup.ts b/packages/utils/test/utils/chai_setup.ts
new file mode 100644
index 000000000..1a8733093
--- /dev/null
+++ b/packages/utils/test/utils/chai_setup.ts
@@ -0,0 +1,13 @@
+import * as chai from 'chai';
+import chaiAsPromised = require('chai-as-promised');
+import ChaiBigNumber = require('chai-bignumber');
+import * as dirtyChai from 'dirty-chai';
+
+export const chaiSetup = {
+    configure(): void {
+        chai.config.includeStack = true;
+        chai.use(ChaiBigNumber());
+        chai.use(dirtyChai);
+        chai.use(chaiAsPromised);
+    },
+};