2 files changed, 58 insertions, 2 deletions
diff --git a/packages/instant/test/util/error.test.ts b/packages/instant/test/util/error.test.ts
new file mode 100644
index 000000000..b009db91a
--- /dev/null
+++ b/packages/instant/test/util/error.test.ts
@@ -0,0 +1,56 @@
+import { AssetBuyerError } from '@0x/asset-buyer';
+import { AssetProxyId } from '@0x/types';
+
+import { Asset } from '../../src/types';
+import { errorUtil } from '../../src/util/error';
+
+const ZRX_ASSET_DATA = '0xf47261b0000000000000000000000000e41d2489571d322189246dafa5ebde1f4699f498';
+const ZRX_ASSET: Asset = {
+    assetData: ZRX_ASSET_DATA,
+    metaData: {
+        assetProxyId: AssetProxyId.ERC20,
+        symbol: 'zrx',
+        decimals: 18,
+    },
+};
+
+describe('errorUtil', () => {
+    describe('errorFlasher', () => {
+        it('should return error and asset name for InsufficientAssetLiquidity', () => {
+            const insufficientAssetError = new Error(AssetBuyerError.InsufficientAssetLiquidity);
+            expect(errorUtil.errorDescription(insufficientAssetError, ZRX_ASSET).message).toEqual(
+                'Not enough ZRX available',
+            );
+        });
+        it('should return error default name for InsufficientAssetLiquidity', () => {
+            const insufficientZrxError = new Error(AssetBuyerError.InsufficientZrxLiquidity);
+            expect(errorUtil.errorDescription(insufficientZrxError).message).toEqual(
+                'Not enough of this asset available',
+            );
+        });
+        it('should return asset name for InsufficientAssetLiquidity', () => {
+            const insufficientZrxError = new Error(AssetBuyerError.InsufficientZrxLiquidity);
+            expect(errorUtil.errorDescription(insufficientZrxError, ZRX_ASSET).message).toEqual(
+                'Not enough ZRX available',
+            );
+        });
+        it('should return unavailable error and asset name for StandardRelayerApiError', () => {
+            const standardRelayerError = new Error(AssetBuyerError.StandardRelayerApiError);
+            expect(errorUtil.errorDescription(standardRelayerError, ZRX_ASSET).message).toEqual(
+                'ZRX is currently unavailable',
+            );
+        });
+        it('should return error for AssetUnavailable error', () => {
+            const assetUnavailableError = new Error(`${AssetBuyerError.AssetUnavailable}: For assetData ${ZRX_ASSET}`);
+            expect(errorUtil.errorDescription(assetUnavailableError, ZRX_ASSET).message).toEqual(
+                'ZRX is currently unavailable',
+            );
+        });
+        it('should return default for AssetUnavailable error', () => {
+            const assetUnavailableError = new Error(`${AssetBuyerError.AssetUnavailable}: For assetData xyz`);
+            expect(errorUtil.errorDescription(assetUnavailableError, ZRX_ASSET).message).toEqual(
+                'This asset is currently unavailable',
+            );
+        });
+    });
+});
diff --git a/packages/instant/test/util/format.test.ts b/packages/instant/test/util/format.test.ts
index 073b86b19..141df9275 100644
--- a/packages/instant/test/util/format.test.ts
+++ b/packages/instant/test/util/format.test.ts
@@ -1,5 +1,5 @@
-import { BigNumber } from '@0xproject/utils';
-import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import { BigNumber } from '@0x/utils';
+import { Web3Wrapper } from '@0x/web3-wrapper';
 
 import { ethDecimals } from '../../src/constants';
 import { format } from '../../src/util/format';