Use variable name in assertin message

2 files changed, 5 insertions, 4 deletions

diff --git a/src/utils/assert.ts b/src/utils/assert.ts
index 5b4a6fca6..aee53f30c 100644
--- a/src/utils/assert.ts
+++ b/src/utils/assert.ts
@@ -29,11 +29,12 @@ export const assert = {
     async isSenderAddressHexAsync(variableName: string, senderAddress: string,
                                   web3Wrapper: Web3Wrapper): Promise<void> {
         assert.isETHAddressHex(variableName, senderAddress);
-        await assert.isSenderAddressAvailableAsync(web3Wrapper, senderAddress);
+        await assert.isSenderAddressAvailableAsync(web3Wrapper, variableName, senderAddress);
     },
-    async isSenderAddressAvailableAsync(web3Wrapper: Web3Wrapper, senderAddress: string): Promise<void> {
+    async isSenderAddressAvailableAsync(web3Wrapper: Web3Wrapper, variableName: string,
+                                        senderAddress: string): Promise<void> {
         const isSenderAddressAvailable = await web3Wrapper.isSenderAddressAvailableAsync(senderAddress);
-        assert.assert(isSenderAddressAvailable, `Specified sender account ${senderAddress} isn't available through the \
+        assert.assert(isSenderAddressAvailable, `Specified ${variableName} ${senderAddress} isn't available through the \
                                                  supplied web3 instance`);
     },
     isNumber(variableName: string, value: number): void {
diff --git a/test/assert_test.ts b/test/assert_test.ts
index c8f698730..147c9832f 100644
--- a/test/assert_test.ts
+++ b/test/assert_test.ts
@@ -20,7 +20,7 @@ describe('Assertion library', () => {
             const validUnrelatedAddress = '0x8b0292b11a196601eddce54b665cafeca0347d42';
             const varName = 'account';
             return expect(assert.isSenderAddressHexAsync(varName, validUnrelatedAddress, (zeroEx as any).web3Wrapper))
-                .to.be.rejectedWith(`Specified sender account ${validUnrelatedAddress} \
+                .to.be.rejectedWith(`Specified ${varName} ${validUnrelatedAddress} \
                 isn't available through the supplied web3 instance`);
         });
         it('doesn\'t throw if account is available', async () => {