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- // 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 <vector>
- #include "base/mac/scoped_nsobject.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace {
- TEST(ScopedNSObjectTest, ScopedNSObject) {
- base::scoped_nsobject<NSObject> p1([[NSObject alloc] init]);
- ASSERT_TRUE(p1.get());
- ASSERT_EQ(1u, [p1 retainCount]);
- base::scoped_nsobject<NSObject> p2(p1);
- ASSERT_EQ(p1.get(), p2.get());
- ASSERT_EQ(2u, [p1 retainCount]);
- p2.reset();
- ASSERT_EQ(nil, p2.get());
- ASSERT_EQ(1u, [p1 retainCount]);
- {
- base::scoped_nsobject<NSObject> p3 = p1;
- ASSERT_EQ(p1.get(), p3.get());
- ASSERT_EQ(2u, [p1 retainCount]);
- @autoreleasepool {
- p3 = p1;
- }
- ASSERT_EQ(p1.get(), p3.get());
- ASSERT_EQ(2u, [p1 retainCount]);
- }
- ASSERT_EQ(1u, [p1 retainCount]);
- base::scoped_nsobject<NSObject> p4([p1.get() retain]);
- ASSERT_EQ(2u, [p1 retainCount]);
- ASSERT_TRUE(p1 == p1.get());
- ASSERT_TRUE(p1 == p1);
- ASSERT_FALSE(p1 != p1);
- ASSERT_FALSE(p1 != p1.get());
- base::scoped_nsobject<NSObject> p5([[NSObject alloc] init]);
- ASSERT_TRUE(p1 != p5);
- ASSERT_TRUE(p1 != p5.get());
- ASSERT_FALSE(p1 == p5);
- ASSERT_FALSE(p1 == p5.get());
- base::scoped_nsobject<NSObject> p6 = p1;
- ASSERT_EQ(3u, [p6 retainCount]);
- @autoreleasepool {
- p6.autorelease();
- ASSERT_EQ(nil, p6.get());
- ASSERT_EQ(3u, [p1 retainCount]);
- }
- ASSERT_EQ(2u, [p1 retainCount]);
- base::scoped_nsobject<NSObject> p7([NSObject new]);
- base::scoped_nsobject<NSObject> p8(std::move(p7));
- ASSERT_TRUE(p8);
- ASSERT_EQ(1u, [p8 retainCount]);
- ASSERT_FALSE(p7.get());
- }
- // Instantiating scoped_nsobject<> with T=NSAutoreleasePool should trip a
- // static_assert.
- #if 0
- TEST(ScopedNSObjectTest, FailToCreateScopedNSObjectAutoreleasePool) {
- base::scoped_nsobject<NSAutoreleasePool> pool;
- }
- #endif
- TEST(ScopedNSObjectTest, ScopedNSObjectInContainer) {
- base::scoped_nsobject<id> p([[NSObject alloc] init]);
- ASSERT_TRUE(p.get());
- ASSERT_EQ(1u, [p retainCount]);
- {
- std::vector<base::scoped_nsobject<id>> objects;
- objects.push_back(p);
- ASSERT_EQ(2u, [p retainCount]);
- ASSERT_EQ(p.get(), objects[0].get());
- objects.push_back(base::scoped_nsobject<id>([[NSObject alloc] init]));
- ASSERT_TRUE(objects[1].get());
- ASSERT_EQ(1u, [objects[1] retainCount]);
- }
- ASSERT_EQ(1u, [p retainCount]);
- }
- TEST(ScopedNSObjectTest, ScopedNSObjectFreeFunctions) {
- base::scoped_nsobject<id> p1([[NSObject alloc] init]);
- id o1 = p1.get();
- ASSERT_TRUE(o1 == p1);
- ASSERT_FALSE(o1 != p1);
- base::scoped_nsobject<id> p2([[NSObject alloc] init]);
- ASSERT_TRUE(o1 != p2);
- ASSERT_FALSE(o1 == p2);
- id o2 = p2.get();
- swap(p1, p2);
- ASSERT_EQ(o2, p1.get());
- ASSERT_EQ(o1, p2.get());
- }
- TEST(ScopedNSObjectTest, ResetWithAnotherScopedNSObject) {
- base::scoped_nsobject<id> p1([[NSObject alloc] init]);
- id o1 = p1.get();
- id o2 = nil;
- {
- base::scoped_nsobject<id> p2([[NSObject alloc] init]);
- o2 = p2.get();
- p1.reset(p2);
- EXPECT_EQ(2u, [p1 retainCount]);
- }
- EXPECT_NE(o1, p1.get());
- EXPECT_EQ(o2, p1.get());
- EXPECT_NE(p1.get(), nil);
- EXPECT_EQ(1u, [p1 retainCount]);
- }
- } // namespace
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