clean up

lib/vaild.js

@@ -56,8 +56,6 @@ module.exports = (function () {
             });
             res.on('end', function () {
               that.emitter.emit('end');
-              that.url = undefined;
-              that.emitter = null;
             });
           } else if (300 < statusCode && statusCode < 304) {
             that.fetch && req.abort();
@@ -123,6 +121,7 @@ module.exports = (function () {
     this.emitter = new EventEmitter();
     this.vailds = [];
     this.fetch = false;
+    this.finishLen = 0;
     callback && this.emitter.on('check', callback);
     setImmediate(function () {
       that.get(urls);
@@ -136,7 +135,7 @@ module.exports = (function () {
      * @param {Function} callback
      */
     on: function (event, callback) {
-      if (event === 'data' || event === 'end') {
+      if (event === 'data') {
         throw new Error('Do not support this event.');
       }
       this.emitter.on(event, callback);
@@ -156,6 +155,11 @@ module.exports = (function () {
               vaild: vaild
             });
           });
+          vaild.on('end', function () {
+            if (++that.finishLen === that.vailds.length) {
+              that.emitter.emit('end');
+            }
+          });
           that.vailds.push(vaild);
         });
       }

test/vaild.js

@@ -134,16 +134,18 @@ describe('vaild', function () {
             });
   });
 
-  it('should able to destroy a MutilVaild instance', function () {
+  it('should able to destroy a MutilVaild instance', function (done) {
     var m = vaild([
       'http://localhost:7777/available/0',
       'http://localhost:7777/available/1',
       'http://localhost:7777/available/2',
       'http://localhost:7777/available/3'
-    ]);
-    m.destroy();
-    assert.deepEqual(m.emitter, null);
-    assert.deepEqual(m.fetch, undefined);
+    ]).on('end', function () {
+      m.destroy();
+      assert.deepEqual(m.emitter, null);
+      assert.deepEqual(m.fetch, undefined);
+      done();
+    });
   });
 
   it('should emit end event when finish validity detection', function (done) {