fix(async-map): judge whether objArr is empty to resolve or callback, it fixs no response issure when there is no rules for inputs.

Author: wilson

__tests__/validator.spec.js

@@ -416,6 +416,21 @@ describe('validator', () => {
             done();
           });
       });
+
+      it('works for no rules fields', done => {
+        new Schema({
+          v: [],
+          v2: [],
+        })
+          .validate({
+            v: 2,
+            v2: 1,
+          })
+          .then(e => {
+            expect(e).toBeUndefined();
+            done();
+          });
+      });
     });
   });
 });

src/util.js

@@ -180,6 +180,10 @@ export function asyncMap(objArr, option, func, callback) {
           : resolve();
       }
     };
+    if (!objArrKeys.length) {
+      callback(results)
+      resolve()
+    }
     objArrKeys.forEach(key => {
       const arr = objArr[key];
       if (firstFields.indexOf(key) !== -1) {