Filtered events.

chrome/common/extensions/value_counter_unittest.cc

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "chrome/common/extensions/value_counter.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class ValueCounterUnittest : public testing::Test {
+};
+
+TEST_F(ValueCounterUnittest, TestAddingSameValue) {
+  extensions::ValueCounter vc;
+  scoped_ptr<base::Value> value(new ListValue());

[battre, 2012/06/20 09:50:46]

nit: you can allocate this and the other value* variables on the stack.

[koz (OOO until 15th September), 2012/06/21 02:23:11]

Done.

+  ASSERT_EQ(1, vc.Add(*value));
+  ASSERT_EQ(2, vc.Add(*value));
+}
+
+TEST_F(ValueCounterUnittest, TestAddingDifferentValue) {
+  extensions::ValueCounter vc;
+  scoped_ptr<base::Value> value1(new ListValue());
+  scoped_ptr<base::Value> value2(new DictionaryValue());
+  ASSERT_EQ(1, vc.Add(*value1));
+  ASSERT_EQ(1, vc.Add(*value2));
+}
+
+TEST_F(ValueCounterUnittest, TestRemovingValue) {
+  extensions::ValueCounter vc;
+  scoped_ptr<base::Value> value(new ListValue());
+  ASSERT_EQ(1, vc.Add(*value));
+  ASSERT_EQ(2, vc.Add(*value));
+  ASSERT_EQ(1, vc.Remove(*value));
+  ASSERT_EQ(0, vc.Remove(*value));
+}
+
+TEST_F(ValueCounterUnittest, TestAddIfMissing) {
+  extensions::ValueCounter vc;
+  scoped_ptr<base::Value> value(new ListValue());
+  ASSERT_EQ(1, vc.AddIfMissing(*value));
+  ASSERT_EQ(1, vc.AddIfMissing(*value));
+}