test: added tests for createHmacSignature()

Author: danpoletaev

test/hmac.test.ts

@@ -0,0 +1,17 @@
+import { createHmacSignature } from '@apify/utilities';
+
+describe('createHmacSignature()', () => {
+    it('should create a valid HMAC signature', () => {
+        const secretKey = 'hmac-secret-key';
+        const message = 'hmac-message-to-be-authenticated';
+        expect(createHmacSignature(secretKey, message)).toBe('pcVagAsud2gqKY2qCy2G');
+    });
+
+    it('should create same HMAC signature, when secretKey and message are same', () => {
+        const secretKey = 'hmac-same-secret-key';
+        const message = 'hmac-same-message-to-be-authenticated';
+        for (let i = 0; i < 5; i++) {
+            expect(createHmacSignature(secretKey, message)).toBe('FYMcmTIm2sQ68EcG8yyQ');
+        }
+    });
+});