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-rw-r--r--test/utils/token_utils.ts24
1 files changed, 24 insertions, 0 deletions
diff --git a/test/utils/token_utils.ts b/test/utils/token_utils.ts
new file mode 100644
index 000000000..14788b299
--- /dev/null
+++ b/test/utils/token_utils.ts
@@ -0,0 +1,24 @@
+import * as _ from 'lodash';
+import {Token, ZeroExError} from '../../src/types';
+
+const PROTOCOL_TOKEN_SYMBOL = 'ZRX';
+
+export class TokenUtils {
+ private tokens: Token[];
+ constructor(tokens: Token[]) {
+ this.tokens = tokens;
+ }
+ public getProtocolTokenOrThrow(): Token {
+ const zrxToken = _.find(this.tokens, {symbol: PROTOCOL_TOKEN_SYMBOL});
+ if (_.isUndefined(zrxToken)) {
+ throw new Error(ZeroExError.ZRX_NOT_IN_TOKEN_REGISTRY);
+ }
+ return zrxToken;
+ }
+ public getNonProtocolTokens(): Token[] {
+ const nonProtocolTokens = _.filter(this.tokens, token => {
+ return token.symbol !== PROTOCOL_TOKEN_SYMBOL;
+ });
+ return nonProtocolTokens;
+ }
+}