1 files changed, 113 insertions, 0 deletions
diff --git a/test/ng/deferSpec.js b/test/ng/deferSpec.js
new file mode 100644
index 00000000..48c9e912
--- /dev/null
+++ b/test/ng/deferSpec.js
@@ -0,0 +1,113 @@
+'use strict';
+
+describe('$defer', function() {
+  beforeEach(module(function($provide) {
+    $provide.factory('$exceptionHandler', function(){
+      return jasmine.createSpy('$exceptionHandler');
+    });
+  }));
+
+
+  it('should delegate functions to $browser.defer', inject(function($defer, $browser, $exceptionHandler) {
+    var counter = 0;
+    $defer(function() { counter++; });
+
+    expect(counter).toBe(0);
+
+    $browser.defer.flush();
+    expect(counter).toBe(1);
+
+    expect(function() {$browser.defer.flush();}).toThrow('No deferred tasks to be flushed');
+    expect(counter).toBe(1);
+
+    expect($exceptionHandler).not.toHaveBeenCalled();
+  }));
+
+
+  it('should delegate exception to the $exceptionHandler service', inject(function($defer, $browser, $exceptionHandler) {
+    $defer(function() {throw "Test Error";});
+    expect($exceptionHandler).not.toHaveBeenCalled();
+
+    $browser.defer.flush();
+    expect($exceptionHandler).toHaveBeenCalledWith("Test Error");
+  }));
+
+
+  it('should call $apply after each callback is executed', inject(function($defer, $browser, $rootScope) {
+    var applySpy = this.spyOn($rootScope, '$apply').andCallThrough();
+
+    $defer(function() {});
+    expect(applySpy).not.toHaveBeenCalled();
+
+    $browser.defer.flush();
+    expect(applySpy).toHaveBeenCalled();
+
+    applySpy.reset(); //reset the spy;
+
+    $defer(function() {});
+    $defer(function() {});
+    $browser.defer.flush();
+    expect(applySpy.callCount).toBe(2);
+  }));
+
+
+  it('should call $apply even if an exception is thrown in callback', inject(function($defer, $browser, $rootScope) {
+    var applySpy = this.spyOn($rootScope, '$apply').andCallThrough();
+
+    $defer(function() {throw "Test Error";});
+    expect(applySpy).not.toHaveBeenCalled();
+
+    $browser.defer.flush();
+    expect(applySpy).toHaveBeenCalled();
+  }));
+
+
+  it('should allow you to specify the delay time', inject(function($defer, $browser) {
+    var defer = this.spyOn($browser, 'defer');
+    $defer(noop, 123);
+    expect(defer.callCount).toEqual(1);
+    expect(defer.mostRecentCall.args[1]).toEqual(123);
+  }));
+
+
+  it('should return a cancelation token', inject(function($defer, $browser) {
+    var defer = this.spyOn($browser, 'defer').andReturn('xxx');
+    expect($defer(noop)).toEqual('xxx');
+  }));
+
+
+  describe('cancel', function() {
+    it('should cancel tasks', inject(function($defer, $browser) {
+      var task1 = jasmine.createSpy('task1'),
+          task2 = jasmine.createSpy('task2'),
+          task3 = jasmine.createSpy('task3'),
+          token1, token3;
+
+      token1 = $defer(task1);
+      $defer(task2);
+      token3 = $defer(task3, 333);
+
+      $defer.cancel(token3);
+      $defer.cancel(token1);
+      $browser.defer.flush();
+
+      expect(task1).not.toHaveBeenCalled();
+      expect(task2).toHaveBeenCalledOnce();
+      expect(task3).not.toHaveBeenCalled();
+    }));
+
+
+    it('should return true if a task was succesffuly canceled', inject(function($defer, $browser) {
+      var task1 = jasmine.createSpy('task1'),
+          task2 = jasmine.createSpy('task2'),
+          token1, token2;
+
+      token1 = $defer(task1);
+      $browser.defer.flush();
+      token2 = $defer(task2);
+
+      expect($defer.cancel(token1)).toBe(false);
+      expect($defer.cancel(token2)).toBe(true);
+    }));
+  });
+});