feat: add asset tests

packages/instant/test/util/asset.test.ts

@@ -0,0 +1,25 @@
+import { AssetProxyId } from '@0x/types';
+
+import { Asset } from '../../src/types';
+import { assetUtils } from '../../src/util/asset';
+
+const ZRX_ASSET_DATA = '0xf47261b0000000000000000000000000e41d2489571d322189246dafa5ebde1f4699f498';
+const ZRX_ASSET: Asset = {
+    assetData: ZRX_ASSET_DATA,
+    metaData: {
+        assetProxyId: AssetProxyId.ERC20,
+        symbol: 'zrx',
+        decimals: 18,
+    },
+};
+
+describe('assetDataUtil', () => {
+    describe('bestNameForAsset', () => {
+        it('should return default string if assetData is undefined', () => {
+            expect(assetUtils.bestNameForAsset(undefined, 'xyz')).toEqual('xyz');
+        });
+        it('should return ZRX for ZRX assetData', () => {
+            expect(assetUtils.bestNameForAsset(ZRX_ASSET, 'mah default')).toEqual('ZRX');
+        });
+    });
+});