From bca62c813d2e821c56968916615861366402435b Mon Sep 17 00:00:00 2001
From: Alex Browne <stephenalexbrowne@gmail.com>
Date: Mon, 4 Jun 2018 18:10:42 -0700
Subject: Throw in web3-wrapper when rawCallResult is '0x'

---
 packages/contracts/src/utils/assertions.ts | 12 ++++++++++++
 packages/contracts/src/utils/constants.ts  |  1 +
 2 files changed, 13 insertions(+)

(limited to 'packages/contracts/src')

diff --git a/packages/contracts/src/utils/assertions.ts b/packages/contracts/src/utils/assertions.ts
index 1e8d58b9f..4fc410363 100644
--- a/packages/contracts/src/utils/assertions.ts
+++ b/packages/contracts/src/utils/assertions.ts
@@ -30,3 +30,15 @@ export function expectInsufficientFunds<T>(p: Promise<T>): PromiseLike<void> {
             );
         });
 }
+
+export function expectRevertOrContractCallFailed<T>(p: Promise<T>): PromiseLike<void> {
+    return expect(p)
+        .to.be.rejected()
+        .then(e => {
+            expect(e).to.satisfy(
+                (err: Error) =>
+                    _.includes(err.message, constants.REVERT) ||
+                    _.includes(err.message, constants.CONTRACT_CALL_FAILED),
+            );
+        });
+}
diff --git a/packages/contracts/src/utils/constants.ts b/packages/contracts/src/utils/constants.ts
index 60f41b51b..a21ca29ed 100644
--- a/packages/contracts/src/utils/constants.ts
+++ b/packages/contracts/src/utils/constants.ts
@@ -20,6 +20,7 @@ export const constants = {
     INVALID_OPCODE: 'invalid opcode',
     REVERT: 'revert',
     ALWAYS_FAILING_TRANSACTION: 'always failing transaction',
+    CONTRACT_CALL_FAILED: 'Contract call failed',
     LIB_BYTES_GT_ZERO_LENGTH_REQUIRED: 'Length must be greater than 0.',
     LIB_BYTES_GTE_4_LENGTH_REQUIRED: 'Length must be greater than or equal to 4.',
     LIB_BYTES_GTE_20_LENGTH_REQUIRED: 'Length must be greater than or equal to 20.',
-- 
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