ui/base/view_prop_unittest.cc

   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 "testing/gtest/include/gtest/gtest.h"
   6
   7 #include "base/memory/scoped_ptr.h"
   8 #include "ui/base/view_prop.h"
   9
  10 namespace {
  11 const char kKey1[] = "key_1";
  12 const char kKey2[] = "key_2";
  13 }  // namespace
  14
  15 namespace ui {
  16
  17 // Test a handful of viewprop assertions.
  18 TEST(ViewPropTest, Basic) {
  19   gfx::AcceleratedWidget nv1 = reinterpret_cast<gfx::AcceleratedWidget>(1);
  20   gfx::AcceleratedWidget nv2 = reinterpret_cast<gfx::AcceleratedWidget>(2);
  21
  22   void* data1 = reinterpret_cast<void*>(11);
  23   void* data2 = reinterpret_cast<void*>(12);
  24
  25   // Initial value for a new view/key pair should be NULL.
  26   EXPECT_EQ(NULL, ViewProp::GetValue(nv1, kKey1));
  27
  28   {
  29     // Register a value for a view/key pair.
  30     ViewProp prop(nv1, kKey1, data1);
  31     EXPECT_EQ(data1, ViewProp::GetValue(nv1, kKey1));
  32   }
  33
  34   // The property fell out of scope, so the value should now be NULL.
  35   EXPECT_EQ(NULL, ViewProp::GetValue(nv1, kKey1));
  36
  37   {
  38     // Register a value for a view/key pair.
  39     scoped_ptr<ViewProp> v1(new ViewProp(nv1, kKey1, data1));
  40     EXPECT_EQ(data1, ViewProp::GetValue(nv1, kKey1));
  41
  42     // Register a value for the same view/key pair.
  43     scoped_ptr<ViewProp> v2(new ViewProp(nv1, kKey1, data2));
  44     // The new value should take over.
  45     EXPECT_EQ(data2, ViewProp::GetValue(nv1, kKey1));
  46
  47     // Null out the first ViewProp, which should NULL out the value.
  48     v1.reset(NULL);
  49     EXPECT_EQ(NULL, ViewProp::GetValue(nv1, kKey1));
  50   }
  51
  52   // The property fell out of scope, so the value should now be NULL.
  53   EXPECT_EQ(NULL, ViewProp::GetValue(nv1, kKey1));
  54
  55   {
  56     // Register a value for a view/key pair.
  57     scoped_ptr<ViewProp> v1(new ViewProp(nv1, kKey1, data1));
  58     scoped_ptr<ViewProp> v2(new ViewProp(nv2, kKey2, data2));
  59     EXPECT_EQ(data1, ViewProp::GetValue(nv1, kKey1));
  60     EXPECT_EQ(data2, ViewProp::GetValue(nv2, kKey2));
  61
  62     v1.reset(NULL);
  63     EXPECT_EQ(NULL, ViewProp::GetValue(nv1, kKey1));
  64     EXPECT_EQ(data2, ViewProp::GetValue(nv2, kKey2));
  65
  66     v2.reset(NULL);
  67     EXPECT_EQ(NULL, ViewProp::GetValue(nv1, kKey1));
  68     EXPECT_EQ(NULL, ViewProp::GetValue(nv2, kKey2));
  69   }
  70 }
  71
  72 }  // namespace ui