Merge pull request #101 from matmanjs/v2.1.5

refactor: 优化用例

test/data/fixtures/mock_modules/return-function-promise.js

@@ -1,6 +1,12 @@
-module.exports = () => {
-    return Promise.resolve({
-        name: 'return-function-promise',
-        age: 16
+module.exports = (params, req) => {
+    return new Promise((resolve, reject) => {
+        // Do something here ...
+
+        setTimeout(() => {
+            resolve({
+                name: 'return-function-promise',
+                age: 16
+            });
+        }, 1000);
     });
 };