chrome/browser/chromeos/login/screens/screen_context_unittest.cc

   1 // Copyright (c) 2013 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 <algorithm>
   6 #include <vector>
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "chrome/browser/chromeos/login/screens/screen_context.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace chromeos {
  13
  14 class ScreenContextTest : public testing::Test {
  15  public:
  16   ScreenContextTest() {}
  17   virtual ~ScreenContextTest() {}
  18
  19   virtual void SetUp() {
  20     context_.reset(new ScreenContext());
  21   }
  22
  23   virtual void TearDown() {
  24   }
  25
  26  protected:
  27   ScreenContext& context() { return *context_.get(); }
  28
  29  private:
  30   scoped_ptr<ScreenContext> context_;
  31 };
  32
  33 TEST_F(ScreenContextTest, Simple) {
  34   ASSERT_FALSE(context().HasChanges());
  35
  36   ASSERT_FALSE(context().HasKey("key0"));
  37
  38   bool rv = context().SetBoolean("key0", true);
  39   ASSERT_TRUE(rv);
  40   ASSERT_TRUE(context().HasKey("key0"));
  41   ASSERT_TRUE(context().GetBoolean("key0"));
  42   ASSERT_TRUE(context().GetBoolean("key0", false));
  43   ASSERT_TRUE(context().HasChanges());
  44
  45   rv = context().SetBoolean("key0", true);
  46   ASSERT_FALSE(rv);
  47
  48   rv = context().SetBoolean("key0", false);
  49   ASSERT_TRUE(rv);
  50   ASSERT_TRUE(context().HasKey("key0"));
  51   ASSERT_FALSE(context().GetBoolean("key0"));
  52   ASSERT_FALSE(context().GetBoolean("key0", true));
  53   ASSERT_TRUE(context().HasChanges());
  54
  55   ASSERT_FALSE(context().HasKey("key1"));
  56
  57   ASSERT_EQ(1, context().GetInteger("key1", 1));
  58   rv = context().SetInteger("key1", 2);
  59   ASSERT_TRUE(rv);
  60   ASSERT_TRUE(context().HasKey("key1"));
  61   ASSERT_EQ(2, context().GetInteger("key1"));
  62   ASSERT_EQ(2, context().GetInteger("key1", 1));
  63 }
  64
  65 TEST_F(ScreenContextTest, Changes) {
  66   ASSERT_FALSE(context().HasChanges());
  67
  68   bool rv = context().SetInteger("key0", 2);
  69   ASSERT_TRUE(rv);
  70   ASSERT_EQ(2, context().GetInteger("key0"));
  71   ASSERT_TRUE(context().HasChanges());
  72
  73   base::DictionaryValue changes;
  74   context().GetChangesAndReset(&changes);
  75   ASSERT_FALSE(context().HasChanges());
  76
  77   ASSERT_EQ(1u, changes.size());
  78   int value;
  79   rv = changes.GetInteger("key0", &value);
  80   ASSERT_TRUE(rv);
  81   ASSERT_EQ(2, value);
  82
  83   rv = context().SetInteger("key0", 3);
  84   ASSERT_TRUE(rv);
  85   ASSERT_EQ(3, context().GetInteger("key0", 3));
  86   ASSERT_TRUE(context().HasChanges());
  87
  88   rv = context().SetInteger("key0", 2);
  89   ASSERT_TRUE(rv);
  90   ASSERT_TRUE(context().HasChanges());
  91 }
  92
  93 TEST_F(ScreenContextTest, ComplexChanges) {
  94   ASSERT_FALSE(context().HasChanges());
  95
  96   context().SetString("key0", "value0");
  97   context().SetBoolean("key1", true);
  98   context().SetDouble("key2", 3.14159);
  99   ASSERT_TRUE(context().HasChanges());
 100
 101   // Get all changes and verify them.
 102   base::DictionaryValue changes;
 103   context().GetChangesAndReset(&changes);
 104   ASSERT_FALSE(context().HasChanges());
 105   ASSERT_EQ(3u, changes.size());
 106
 107   std::string string_value;
 108   bool bool_value;
 109   double double_value;
 110   bool rv = changes.GetString("key0", &string_value);
 111   ASSERT_TRUE(rv);
 112   rv = changes.GetBoolean("key1", &bool_value);
 113   ASSERT_TRUE(rv);
 114   rv = changes.GetDouble("key2", &double_value);
 115   ASSERT_TRUE(rv);
 116   ASSERT_EQ("value0", string_value);
 117   ASSERT_EQ(true, bool_value);
 118   ASSERT_DOUBLE_EQ(3.14159, double_value);
 119
 120   context().SetString("key0", "value1");
 121   ASSERT_TRUE(context().HasChanges());
 122
 123   context().SetString("key0", "value0");
 124   ASSERT_TRUE(context().HasChanges());
 125
 126   context().GetChangesAndReset(&changes);
 127   ASSERT_FALSE(context().HasChanges());
 128   ASSERT_EQ(1u, changes.size());
 129   rv = changes.GetString("key0", &string_value);
 130   ASSERT_TRUE(rv);
 131   ASSERT_EQ("value0", string_value);
 132 }
 133
 134 TEST_F(ScreenContextTest, ApplyChanges) {
 135   ASSERT_FALSE(context().HasChanges());
 136
 137   base::DictionaryValue changes;
 138   changes.SetString("key0", "value0");
 139   changes.SetInteger("key1", 1);
 140   changes.SetBoolean("key2", true);
 141
 142   std::vector<std::string> keys;
 143   context().ApplyChanges(changes, &keys);
 144
 145   ASSERT_EQ(3u, keys.size());
 146   std::sort(keys.begin(), keys.end());
 147   ASSERT_EQ("key0", keys[0]);
 148   ASSERT_EQ("key1", keys[1]);
 149   ASSERT_EQ("key2", keys[2]);
 150
 151   ASSERT_FALSE(context().HasChanges());
 152   ASSERT_EQ("value0", context().GetString("key0"));
 153   ASSERT_EQ(1, context().GetInteger("key1"));
 154   ASSERT_TRUE(context().GetBoolean("key2"));
 155 }
 156
 157 }  // namespace chromeos