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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/apple/scoped_nsobject.h"
#include <vector>
#include "base/compiler_specific.h"
#include "testing/gtest/include/gtest/gtest.h"
#if HAS_FEATURE(objc_arc)
#error "This file must not be compiled with ARC."
#endif
namespace {
TEST(ScopedNSObjectTest, ScopedNSObject) {
base::apple::scoped_nsobject<NSObject> p1([[NSObject alloc] init]);
ASSERT_TRUE(p1.get());
ASSERT_EQ(1u, [p1.get() retainCount]);
base::apple::scoped_nsobject<NSObject> p2(p1);
ASSERT_EQ(p1.get(), p2.get());
ASSERT_EQ(2u, [p1.get() retainCount]);
p2.reset();
ASSERT_EQ(nil, p2.get());
ASSERT_EQ(1u, [p1.get() retainCount]);
{
base::apple::scoped_nsobject<NSObject> p3 = p1;
ASSERT_EQ(p1.get(), p3.get());
ASSERT_EQ(2u, [p1.get() retainCount]);
@autoreleasepool {
p3 = p1;
}
ASSERT_EQ(p1.get(), p3.get());
ASSERT_EQ(2u, [p1.get() retainCount]);
}
ASSERT_EQ(1u, [p1.get() retainCount]);
base::apple::scoped_nsobject<NSObject> p4([p1.get() retain]);
ASSERT_EQ(2u, [p1.get() retainCount]);
ASSERT_TRUE(p1 == p1);
ASSERT_FALSE(p1 != p1);
base::apple::scoped_nsobject<NSObject> p5([[NSObject alloc] init]);
ASSERT_TRUE(p1 != p5);
ASSERT_FALSE(p1 == p5);
base::apple::scoped_nsobject<NSObject> p6 = p1;
ASSERT_EQ(3u, [p6.get() retainCount]);
@autoreleasepool {
p6.autorelease();
ASSERT_EQ(nil, p6.get());
ASSERT_EQ(3u, [p1.get() retainCount]);
}
ASSERT_EQ(2u, [p1.get() retainCount]);
base::apple::scoped_nsobject<NSObject> p7([[NSObject alloc] init]);
base::apple::scoped_nsobject<NSObject> p8(std::move(p7));
ASSERT_TRUE(p8);
ASSERT_EQ(1u, [p8.get() retainCount]);
ASSERT_FALSE(p7.get());
}
// Instantiating scoped_nsobject<> with T=NSAutoreleasePool should trip a
// static_assert.
#if 0
TEST(ScopedNSObjectTest, FailToCreateScopedNSObjectAutoreleasePool) {
base::apple::scoped_nsobject<NSAutoreleasePool> pool;
}
#endif
TEST(ScopedNSObjectTest, ScopedNSObjectInContainer) {
base::apple::scoped_nsobject<id> p([[NSObject alloc] init]);
ASSERT_TRUE(p.get());
ASSERT_EQ(1u, [p.get() retainCount]);
{
std::vector<base::apple::scoped_nsobject<id>> objects;
objects.push_back(p);
ASSERT_EQ(2u, [p.get() retainCount]);
ASSERT_EQ(p.get(), objects[0].get());
objects.push_back(
base::apple::scoped_nsobject<id>([[NSObject alloc] init]));
ASSERT_TRUE(objects[1].get());
ASSERT_EQ(1u, [objects[1].get() retainCount]);
}
ASSERT_EQ(1u, [p.get() retainCount]);
}
TEST(ScopedNSObjectTest, ScopedNSObjectFreeFunctions) {
base::apple::scoped_nsobject<id> p1([[NSObject alloc] init]);
id o1 = p1.get();
ASSERT_TRUE(o1 == p1);
ASSERT_FALSE(o1 != p1);
base::apple::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::apple::scoped_nsobject<id> p1([[NSObject alloc] init]);
id o1 = p1.get();
id o2 = nil;
{
base::apple::scoped_nsobject<id> p2([[NSObject alloc] init]);
o2 = p2.get();
p1.reset(p2);
EXPECT_EQ(2u, [p1.get() retainCount]);
}
EXPECT_NE(o1, p1.get());
EXPECT_EQ(o2, p1.get());
EXPECT_NE(p1.get(), nil);
EXPECT_EQ(1u, [p1.get() retainCount]);
}
} // namespace
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