test(utils): increase test coverage chunk 2

src/util.js

@@ -1,4 +1,3 @@
-
 /* @flow */
 /* eslint max-lines: 0 */
 
@@ -557,7 +556,7 @@ export function objFilter<T, R>(obj : { [string] : T }, filter? : (T, ?string) =
     const result = {};
 
     for (const key in obj) {
-        if (!obj.hasOwnProperty(key) || !filter(obj[key], key)) {
+        if (!obj.hasOwnProperty(key) || (filter && !filter(obj[key], key))) {
             continue;
         }
 
@@ -687,7 +686,7 @@ export function undotify(obj : { [string] : string }) : Object {
         } else {
             value = deserializePrimitive(value);
         }
-
+        
         let keyResult = result;
         const parts = key.split('.');
         for (let i = 0; i < parts.length; i++) {

test/tests/global.js

@@ -12,6 +12,7 @@ describe('experiment', () => {
         }
         delete window.__goku__latest_global__;
     });
+
     it('should return default value from the namespace', () => {
         const { get } = getGlobalNameSpace({ name: 'goku' });
         const res = get('vegeta', 'testingDatDefaultValue');

test/tests/util/awaitKey.js

@@ -0,0 +1,28 @@
+/* @flow */
+
+import { awaitKey } from '../../../src';
+
+describe('awaitKey cases', () => {
+    it('awaitKey should return the value when existing', () => {
+        const obj = {
+            custom: true
+        };
+        const result = awaitKey(obj, 'custom');
+
+        if (!result) {
+            throw new Error(`should return "true", but got: ${ result }`);
+        }
+    });
+
+    it('awaitKey should return the configured value when does not exists', () => {
+        const obj = {};
+
+        awaitKey(obj, 'custom');
+        obj.custom = 'result';
+        const result = obj.custom;
+
+        if (result !== 'result') {
+            throw new Error(`should return "result", but got: ${ result }`);
+        }
+    });
+});