3 files changed, 46 insertions, 1 deletions
diff --git a/packages/contracts/src/contracts/current/utils/Ownable/Ownable.sol b/packages/contracts/src/contracts/current/utils/Ownable/Ownable.sol
index 296c6c856..048fdb46f 100644
--- a/packages/contracts/src/contracts/current/utils/Ownable/Ownable.sol
+++ b/packages/contracts/src/contracts/current/utils/Ownable/Ownable.sol
@@ -22,7 +22,7 @@ contract Ownable is IOwnable {
     modifier onlyOwner() {
         require(
             msg.sender == owner,
-            "Only contract owner is allowed to call this method."
+            'ONLY_CONTRACT_OWNER'
         );
         _;
     }
diff --git a/packages/contracts/src/utils/assertions.ts b/packages/contracts/src/utils/assertions.ts
index 615e648f3..29489e648 100644
--- a/packages/contracts/src/utils/assertions.ts
+++ b/packages/contracts/src/utils/assertions.ts
@@ -52,6 +52,18 @@ export function expectRevertOrAlwaysFailingTransactionAsync<T>(p: Promise<T>): P
 }
 
 /**
+ * Rejects if the given Promise does not reject with the given revert reason or "always
+ * failing transaction" error.
+ * @param p the Promise which is expected to reject
+ * @param reason a specific revert reason
+ * @returns a new Promise which will reject if the conditions are not met and
+ * otherwise resolve with no value.
+ */
+export function expectRevertReasonOrAlwaysFailingTransactionAsync<T>(p: Promise<T>, reason: string): PromiseLike<void> {
+    return _expectEitherErrorAsync(p, 'always failing transaction', reason);
+}
+
+/**
  * Rejects if the given Promise does not reject with a "revert" or "Contract
  * call failed" error.
  * @param p the Promise which is expected to reject
diff --git a/packages/contracts/src/utils/types.ts b/packages/contracts/src/utils/types.ts
index 7a1f92afd..24183b549 100644
--- a/packages/contracts/src/utils/types.ts
+++ b/packages/contracts/src/utils/types.ts
@@ -151,3 +151,36 @@ export interface MatchOrder {
     leftSignature: string;
     rightSignature: string;
 }
+
+export enum ContractLibErrors {
+    OrderUnfillable = 'ORDER_UNFILLABLE',
+    InvalidMaker = 'INVALID_MAKER',
+    InvalidTaker = 'INVALID_TAKER',
+    InvalidSender = 'INVALID_SENDER',
+    InvalidOrderSignature = 'INVALID_ORDER_SIGNATURE',
+    InvalidTakerAmount = 'INVALID_TAKER_AMOUNT',
+    RoundingError = 'ROUNDING_ERROR',
+    InvalidSignature = 'INVALID_SIGNATURE',
+    SignatureIllegal = 'SIGNATURE_ILLEGAL',
+    SignatureUnsupported = 'SIGNATURE_UNSUPPORTED',
+    InvalidNewOrderEpoch = 'INVALID_NEW_ORDER_EPOCH',
+    CompleteFillFailed = 'COMPLETE_FILL_FAILED',
+    NegativeSpreadRequired = 'NEGATIVE_SPREAD_REQUIRED',
+    ReentrancyIllegal = 'REENTRANCY_ILLEGAL',
+    InvalidTxHash = 'INVALID_TX_HASH',
+    InvalidTxSignature = 'INVALID_TX_SIGNATURE',
+    FailedExecution = 'FAILED_EXECUTION',
+    AssetProxyMismatch = 'ASSET_PROXY_MISMATCH',
+    AssetProxyIdMismatch = 'ASSET_PROXY_ID_MISMATCH',
+    LengthGreaterThan0Required = 'LENGTH_GREATER_THAN_0_REQUIRED',
+    Length1Required = 'LENGTH_1_REQUIRED',
+    Length66Required = 'LENGTH_66_REQUIRED',
+    InvalidAmount = 'INVALID_AMOUNT',
+    TransferFailed = 'TRANSFER_FAILED',
+    SenderNotAuthorized = 'SENDER_NOT_AUTHORIZED',
+    TargetNotAuthorized = 'TARGET_NOT_AUTHORIZED',
+    TargetAlreadyAuthorized = 'TARGET_ALREADY_AUTHORIZED',
+    IndexOutOfBounds = 'INDEX_OUT_OF_BOUNDS',
+    AuthorizedAddressMismatch = 'AUTHORIZED_ADDRESS_MISMATCH',
+    OnlyContractOwner = 'ONLY_CONTRACT_OWNER',
+}