1 files changed, 92 insertions, 0 deletions
diff --git a/packages/contracts/test/exchange/signature_validator.ts b/packages/contracts/test/exchange/signature_validator.ts
new file mode 100644
index 000000000..489ed32c5
--- /dev/null
+++ b/packages/contracts/test/exchange/signature_validator.ts
@@ -0,0 +1,92 @@
+import { ZeroEx } from '0x.js';
+import { BlockchainLifecycle } from '@0xproject/dev-utils';
+import { BigNumber } from '@0xproject/utils';
+import * as chai from 'chai';
+import ethUtil = require('ethereumjs-util');
+
+import { TestSignatureValidatorContract } from '../../src/contract_wrappers/generated/test_signature_validator';
+import { addressUtils } from '../../src/utils/address_utils';
+import { artifacts } from '../../src/utils/artifacts';
+import { assetProxyUtils } from '../../src/utils/asset_proxy_utils';
+import { chaiSetup } from '../../src/utils/chai_setup';
+import { constants } from '../../src/utils/constants';
+import { OrderFactory } from '../../src/utils/order_factory';
+import { orderUtils } from '../../src/utils/order_utils';
+import { SignedOrder } from '../../src/utils/types';
+import { provider, txDefaults, web3Wrapper } from '../../src/utils/web3_wrapper';
+
+chaiSetup.configure();
+const expect = chai.expect;
+
+const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
+
+describe('MixinSignatureValidator', () => {
+    let signedOrder: SignedOrder;
+    let orderFactory: OrderFactory;
+    let signatureValidator: TestSignatureValidatorContract;
+
+    before(async () => {
+        const accounts = await web3Wrapper.getAvailableAddressesAsync();
+        const makerAddress = accounts[0];
+        signatureValidator = await TestSignatureValidatorContract.deployFrom0xArtifactAsync(
+            artifacts.TestSignatureValidator,
+            provider,
+            txDefaults,
+        );
+        const zeroEx = new ZeroEx(provider, { networkId: constants.TESTRPC_NETWORK_ID });
+
+        const defaultOrderParams = {
+            ...constants.STATIC_ORDER_PARAMS,
+            exchangeAddress: signatureValidator.address,
+            makerAddress,
+            feeRecipientAddress: addressUtils.generatePseudoRandomAddress(),
+            makerAssetData: assetProxyUtils.encodeERC20ProxyData(addressUtils.generatePseudoRandomAddress()),
+            takerAssetData: assetProxyUtils.encodeERC20ProxyData(addressUtils.generatePseudoRandomAddress()),
+        };
+        const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)];
+        orderFactory = new OrderFactory(privateKey, defaultOrderParams);
+    });
+
+    beforeEach(async () => {
+        await blockchainLifecycle.startAsync();
+        signedOrder = orderFactory.newSignedOrder();
+    });
+    afterEach(async () => {
+        await blockchainLifecycle.revertAsync();
+    });
+
+    describe('isValidSignature', () => {
+        beforeEach(async () => {
+            signedOrder = orderFactory.newSignedOrder();
+        });
+
+        it('should return true with a valid signature', async () => {
+            const orderHashHex = orderUtils.getOrderHashHex(signedOrder);
+            const success = await signatureValidator.publicIsValidSignature.callAsync(
+                orderHashHex,
+                signedOrder.makerAddress,
+                signedOrder.signature,
+            );
+            expect(success).to.be.true();
+        });
+
+        it('should return false with an invalid signature', async () => {
+            const invalidR = ethUtil.sha3('invalidR');
+            const invalidS = ethUtil.sha3('invalidS');
+            const invalidSigBuff = Buffer.concat([
+                ethUtil.toBuffer(signedOrder.signature.slice(0, 6)),
+                invalidR,
+                invalidS,
+            ]);
+            const invalidSigHex = `0x${invalidSigBuff.toString('hex')}`;
+            signedOrder.signature = invalidSigHex;
+            const orderHashHex = orderUtils.getOrderHashHex(signedOrder);
+            const success = await signatureValidator.publicIsValidSignature.callAsync(
+                orderHashHex,
+                signedOrder.makerAddress,
+                signedOrder.signature,
+            );
+            expect(success).to.be.false();
+        });
+    });
+});