fix(user): update sessionToken after call updatePassword (#603)

close #563

Author: sdjdd

src/user.js

@@ -781,7 +781,10 @@ module.exports = function(AV) {
           new_password: newPassword,
         };
         var request = AVRequest(route, null, null, 'PUT', params, options);
-        return request;
+        return request.then(resp => {
+          this._finishFetch(this.parse(resp));
+          return this._handleSaveResult(true).then(() => resp);
+        });
       },
 
       /**

test/user.js

@@ -145,7 +145,25 @@ describe('User', function() {
       it('should update password', function() {
         return AV.User.logIn(username, password)
           .then(function(user) {
-            return user.updatePassword(password, 'new pass');
+            return user.updatePassword(password, 'new pass').then(resp => {
+              let getStoredUser = function() {
+                let origin = {
+                  _currentUser: AV.User._currentUser,
+                  _currentUserMatchesDisk: AV.User._currentUserMatchesDisk,
+                };
+                AV.User._currentUser = undefined;
+                AV.User._currentUserMatchesDisk = false;
+                let storedUser = AV.User.current();
+                Object.assign(AV.User, origin);
+                return storedUser;
+              };
+
+              [user, AV.User.current(), getStoredUser()].forEach(user =>
+                user.getSessionToken().should.be.eql(resp.sessionToken)
+              );
+
+              return resp;
+            });
           })
           .then(function() {
             return AV.User.logIn(username, 'new pass');