Throw message for ValidationExceptions

test/exceptions.spec.js

@@ -5,12 +5,12 @@ import {ValidationError} from '../src/exceptions';
 describe('Exception Tests', () => {
   it('ValidationException should return message string', () => {
     expect(
-        new ValidationError(0).message,
-    ).to.equal('0');
+        new ValidationError(0, 'Error Message').message,
+    ).to.equal('Error Message');
   });
   it('ValidationException should return errorCode number', () => {
     expect(
-        new ValidationError(0).errorCode,
+        new ValidationError(0, 'Error Message').errorCode,
     ).to.equal(0);
   });
 });