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