chrome/common/extensions/value_counter_unittest.cc

   1 // Copyright (c) 2012 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/memory/scoped_ptr.h"
   6 #include "base/values.h"
   7 #include "extensions/common/value_counter.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 using ValueCounterTest = testing::Test;
  11
  12 namespace extensions {
  13
  14 TEST_F(ValueCounterTest, TestAddingSameValue) {
  15   ValueCounter vc;
  16   base::ListValue value;
  17   ASSERT_TRUE(vc.Add(value));
  18   ASSERT_FALSE(vc.Add(value));
  19 }
  20
  21 TEST_F(ValueCounterTest, TestAddingDifferentValue) {
  22   ValueCounter vc;
  23   base::ListValue value1;
  24   base::DictionaryValue value2;
  25   ASSERT_TRUE(vc.Add(value1));
  26   ASSERT_TRUE(vc.Add(value2));
  27 }
  28
  29 TEST_F(ValueCounterTest, TestRemovingSameValue) {
  30   ValueCounter vc;
  31   base::ListValue value;
  32   vc.Add(value);
  33   vc.Add(value);
  34   ASSERT_FALSE(vc.Remove(value));
  35   ASSERT_TRUE(vc.Remove(value));
  36   ASSERT_FALSE(vc.Remove(value));
  37 }
  38
  39 TEST_F(ValueCounterTest, TestReAddingSameValue) {
  40   ValueCounter vc;
  41   base::ListValue value;
  42   ASSERT_FALSE(vc.Remove(value));
  43   ASSERT_TRUE(vc.Add(value));
  44   ASSERT_TRUE(vc.Remove(value));
  45   ASSERT_TRUE(vc.Add(value));
  46   ASSERT_TRUE(vc.Remove(value));
  47   ASSERT_FALSE(vc.Remove(value));
  48 }
  49
  50 TEST_F(ValueCounterTest, TestIsEmpty) {
  51   ValueCounter vc;
  52   base::ListValue value1;
  53   base::DictionaryValue value2;
  54   ASSERT_TRUE(vc.is_empty());
  55   vc.Add(value1);
  56   ASSERT_FALSE(vc.is_empty());
  57   vc.Remove(value1);
  58   ASSERT_TRUE(vc.is_empty());
  59   vc.Add(value1);
  60   vc.Add(value2);
  61   ASSERT_FALSE(vc.is_empty());
  62   vc.Remove(value1);
  63   ASSERT_FALSE(vc.is_empty());
  64   vc.Remove(value2);
  65   ASSERT_TRUE(vc.is_empty());
  66 }
  67
  68 }  // namespace extensions