1 files changed, 33 insertions, 0 deletions
diff --git a/test/assert_test.ts b/test/assert_test.ts
new file mode 100644
index 000000000..2100611e9
--- /dev/null
+++ b/test/assert_test.ts
@@ -0,0 +1,33 @@
+import * as chai from 'chai';
+import 'mocha';
+import {ZeroEx} from '../src/0x.js';
+import {assert} from '../src/utils/assert';
+import {web3Factory} from './utils/web3_factory';
+
+const expect = chai.expect;
+
+describe('Assertion library', () => {
+    const web3 = web3Factory.create();
+    const zeroEx = new ZeroEx(web3);
+    describe('#isSenderAccountHexAsync', () => {
+        it('throws when address is invalid', async () => {
+            const address = '0xdeadbeef';
+            const varName = 'account';
+            return expect(assert.isSenderAccountHexAsync(varName, address, (zeroEx as any).web3Wrapper))
+                .to.be.rejectedWith(`Expected ${varName} to be of type ETHAddressHex, encountered: ${address}`);
+        });
+        it('throws when address is unavailable', async () => {
+            const validUnrelatedAddress = '0x8b0292b11a196601eddce54b665cafeca0347d42';
+            const varName = 'account';
+            return expect(assert.isSenderAccountHexAsync(varName, validUnrelatedAddress, (zeroEx as any).web3Wrapper))
+                .to.be.rejectedWith(`Specified sender account ${validUnrelatedAddress} \
+                isn't available through the supplied web3 instance`);
+        });
+        it('doesn\'t throw if account is available', async () => {
+            const availableAccount = (await zeroEx.getAvailableAccountsAsync())[0];
+            const varName = 'account';
+            return expect(assert.isSenderAccountHexAsync(varName, availableAccount, (zeroEx as any).web3Wrapper))
+                .to.become(undefined);
+        });
+    });
+});