Adding mapbox-gl branch

mapbox-gl/closure-library/closure/goog/async/throttle_test.js

@@ -0,0 +1,95 @@
+// Copyright 2006 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+goog.provide('goog.async.ThrottleTest');
+goog.setTestOnly('goog.async.ThrottleTest');
+
+goog.require('goog.async.Throttle');
+goog.require('goog.testing.MockClock');
+goog.require('goog.testing.jsunit');
+
+function testThrottle() {
+  var clock = new goog.testing.MockClock(true);
+
+  var callBackCount = 0;
+  var callBackFunction = function() {
+    callBackCount++;
+  };
+
+  var throttle = new goog.async.Throttle(callBackFunction, 100);
+  assertEquals(0, callBackCount);
+  throttle.fire();
+  assertEquals(1, callBackCount);
+  throttle.fire();
+  assertEquals(1, callBackCount);
+  throttle.fire();
+  throttle.fire();
+  assertEquals(1, callBackCount);
+  clock.tick(101);
+  assertEquals(2, callBackCount);
+  clock.tick(101);
+  assertEquals(2, callBackCount);
+
+  throttle.fire();
+  assertEquals(3, callBackCount);
+  throttle.fire();
+  assertEquals(3, callBackCount);
+  throttle.stop();
+  clock.tick(101);
+  assertEquals(3, callBackCount);
+  throttle.fire();
+  assertEquals(4, callBackCount);
+  clock.tick(101);
+  assertEquals(4, callBackCount);
+
+  throttle.fire();
+  throttle.fire();
+  assertEquals(5, callBackCount);
+  throttle.pause();
+  throttle.resume();
+  assertEquals(5, callBackCount);
+  throttle.pause();
+  clock.tick(101);
+  assertEquals(5, callBackCount);
+  throttle.resume();
+  assertEquals(6, callBackCount);
+  clock.tick(101);
+  assertEquals(6, callBackCount);
+  throttle.pause();
+  throttle.fire();
+  assertEquals(6, callBackCount);
+  clock.tick(101);
+  assertEquals(6, callBackCount);
+  throttle.resume();
+  assertEquals(7, callBackCount);
+
+  throttle.pause();
+  throttle.pause();
+  clock.tick(101);
+  throttle.fire();
+  throttle.resume();
+  assertEquals(7, callBackCount);
+  throttle.resume();
+  assertEquals(8, callBackCount);
+
+  throttle.pause();
+  throttle.pause();
+  throttle.fire();
+  throttle.resume();
+  clock.tick(101);
+  assertEquals(8, callBackCount);
+  throttle.resume();
+  assertEquals(9, callBackCount);
+
+  clock.uninstall();
+}