src/ui/base/cocoa/tracking_area_unittest.mm

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/mac/scoped_nsobject.h"
   6 #import "ui/base/cocoa/tracking_area.h"
   7 #import "ui/base/test/ui_cocoa_test_helper.h"
   8
   9 // A test object that counts the number of times a message is sent to it.
  10 @interface TestTrackingAreaOwner : NSObject {
  11  @private
  12   NSUInteger messageCount_;
  13 }
  14 @property(nonatomic, assign) NSUInteger messageCount;
  15 - (void)performMessage;
  16 @end
  17
  18 @implementation TestTrackingAreaOwner
  19 @synthesize messageCount = messageCount_;
  20 - (void)performMessage {
  21   ++messageCount_;
  22 }
  23 @end
  24
  25 namespace ui {
  26
  27 class CrTrackingAreaTest : public CocoaTest {
  28  public:
  29   CrTrackingAreaTest()
  30       : owner_([[TestTrackingAreaOwner alloc] init]),
  31         trackingArea_([[CrTrackingArea alloc]
  32             initWithRect:NSMakeRect(0, 0, 100, 100)
  33                  options:NSTrackingMouseMoved | NSTrackingActiveInKeyWindow
  34                    owner:owner_.get()
  35                 userInfo:nil]) {
  36   }
  37
  38   base::scoped_nsobject<TestTrackingAreaOwner> owner_;
  39   base::scoped_nsobject<CrTrackingArea> trackingArea_;
  40 };
  41
  42 TEST_F(CrTrackingAreaTest, OwnerForwards) {
  43   [[trackingArea_ owner] performMessage];
  44   EXPECT_EQ(1U, [owner_ messageCount]);
  45
  46   [[trackingArea_ owner] performMessage];
  47   EXPECT_EQ(2U, [owner_ messageCount]);
  48 }
  49
  50 TEST_F(CrTrackingAreaTest, OwnerStopsForwarding) {
  51   [[trackingArea_ owner] performMessage];
  52   EXPECT_EQ(1U, [owner_ messageCount]);
  53
  54   [trackingArea_ clearOwner];
  55
  56   [[trackingArea_ owner] performMessage];
  57   EXPECT_EQ(1U, [owner_ messageCount]);
  58 }
  59
  60 TEST_F(CrTrackingAreaTest, OwnerAutomaticallyStopsForwardingOnClose) {
  61   [test_window() orderFront:nil];
  62   [trackingArea_ clearOwnerWhenWindowWillClose:test_window()];
  63
  64   [[trackingArea_ owner] performMessage];
  65   EXPECT_EQ(1U, [owner_ messageCount]);
  66
  67   [test_window() close];
  68
  69   [[trackingArea_ owner] performMessage];
  70   EXPECT_EQ(1U, [owner_ messageCount]);
  71 }
  72
  73 TEST_F(CrTrackingAreaTest, ScoperInit) {
  74   {
  75     ScopedCrTrackingArea scoper([trackingArea_ retain]);
  76     [[scoper.get() owner] performMessage];
  77     EXPECT_EQ(1U, [owner_ messageCount]);
  78   }
  79
  80   [[trackingArea_ owner] performMessage];
  81   EXPECT_EQ(1U, [owner_ messageCount]);
  82 }
  83
  84 TEST_F(CrTrackingAreaTest, ScoperReset) {
  85   {
  86     ScopedCrTrackingArea scoper;
  87     EXPECT_FALSE(scoper.get());
  88
  89     scoper.reset([trackingArea_ retain]);
  90     [[scoper.get() owner] performMessage];
  91     EXPECT_EQ(1U, [owner_ messageCount]);
  92
  93     [[scoper.get() owner] performMessage];
  94     EXPECT_EQ(2U, [owner_ messageCount]);
  95   }
  96
  97   [[trackingArea_ owner] performMessage];
  98   EXPECT_EQ(2U, [owner_ messageCount]);
  99 }
 100
 101 }  // namespace ui