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 class ValueCounterUnittest : public testing::Test {
  11 };
  12
  13 TEST_F(ValueCounterUnittest, TestAddingSameValue) {
  14   extensions::ValueCounter vc;
  15   base::ListValue value;
  16   ASSERT_EQ(1, vc.Add(value));
  17   ASSERT_EQ(2, vc.Add(value));
  18 }
  19
  20 TEST_F(ValueCounterUnittest, TestAddingDifferentValue) {
  21   extensions::ValueCounter vc;
  22   base::ListValue value1;
  23   base::DictionaryValue value2;
  24   ASSERT_EQ(1, vc.Add(value1));
  25   ASSERT_EQ(1, vc.Add(value2));
  26 }
  27
  28 TEST_F(ValueCounterUnittest, TestRemovingValue) {
  29   extensions::ValueCounter vc;
  30   base::ListValue value;
  31   ASSERT_EQ(1, vc.Add(value));
  32   ASSERT_EQ(2, vc.Add(value));
  33   ASSERT_EQ(1, vc.Remove(value));
  34   ASSERT_EQ(0, vc.Remove(value));
  35 }
  36
  37 TEST_F(ValueCounterUnittest, TestAddIfMissing) {
  38   extensions::ValueCounter vc;
  39   base::ListValue value;
  40   ASSERT_EQ(1, vc.AddIfMissing(value));
  41   ASSERT_EQ(1, vc.AddIfMissing(value));
  42 }