blob: 5cbf3f83833effc65eba1f4db8bc03f50528f262 [file] [log] [blame]
// 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>
#import <CoreFoundation/CoreFoundation.h>
#include "base/logging.h"
#import "base/mac/scoped_nsobject.h"
#include "testing/gtest/include/gtest/gtest.h"
#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#endif
namespace {
template <typename NST>
CFIndex GetRetainCount(const base::scoped_nsobject<NST>& nst) {
@autoreleasepool {
return CFGetRetainCount((__bridge CFTypeRef)nst.get()) - 1;
}
}
#if __has_feature(objc_arc_weak)
TEST(ScopedNSObjectTestARC, DefaultPolicyIsRetain) {
__weak id o;
@autoreleasepool {
base::scoped_nsprotocol<id> p([[NSObject alloc] init]);
o = p.get();
DCHECK_EQ(o, p.get());
}
DCHECK_EQ(o, nil);
}
#endif
TEST(ScopedNSObjectTestARC, ScopedNSObject) {
base::scoped_nsobject<NSObject> p1([[NSObject alloc] init]);
@autoreleasepool {
EXPECT_TRUE(p1.get());
EXPECT_TRUE(p1.get());
}
EXPECT_EQ(1, GetRetainCount(p1));
EXPECT_EQ(1, GetRetainCount(p1));
base::scoped_nsobject<NSObject> p2(p1);
@autoreleasepool {
EXPECT_EQ(p1.get(), p2.get());
}
EXPECT_EQ(2, GetRetainCount(p1));
p2.reset();
EXPECT_EQ(nil, p2.get());
EXPECT_EQ(1, GetRetainCount(p1));
{
base::scoped_nsobject<NSObject> p3 = p1;
@autoreleasepool {
EXPECT_EQ(p1.get(), p3.get());
}
EXPECT_EQ(2, GetRetainCount(p1));
@autoreleasepool {
p3 = p1;
EXPECT_EQ(p1.get(), p3.get());
}
EXPECT_EQ(2, GetRetainCount(p1));
}
EXPECT_EQ(1, GetRetainCount(p1));
base::scoped_nsobject<NSObject> p4;
@autoreleasepool {
p4 = base::scoped_nsobject<NSObject>(p1.get());
}
EXPECT_EQ(2, GetRetainCount(p1));
@autoreleasepool {
EXPECT_TRUE(p1 == p1.get());
EXPECT_TRUE(p1 == p1);
EXPECT_FALSE(p1 != p1);
EXPECT_FALSE(p1 != p1.get());
}
base::scoped_nsobject<NSObject> p5([[NSObject alloc] init]);
@autoreleasepool {
EXPECT_TRUE(p1 != p5);
EXPECT_TRUE(p1 != p5.get());
EXPECT_FALSE(p1 == p5);
EXPECT_FALSE(p1 == p5.get());
}
base::scoped_nsobject<NSObject> p6 = p1;
EXPECT_EQ(3, GetRetainCount(p6));
@autoreleasepool {
p6.autorelease();
EXPECT_EQ(nil, p6.get());
}
EXPECT_EQ(2, GetRetainCount(p1));
}
TEST(ScopedNSObjectTestARC, ScopedNSObjectInContainer) {
base::scoped_nsobject<id> p([[NSObject alloc] init]);
@autoreleasepool {
EXPECT_TRUE(p.get());
}
EXPECT_EQ(1, GetRetainCount(p));
@autoreleasepool {
std::vector<base::scoped_nsobject<id>> objects;
objects.push_back(p);
EXPECT_EQ(2, GetRetainCount(p));
@autoreleasepool {
EXPECT_EQ(p.get(), objects[0].get());
}
objects.push_back(base::scoped_nsobject<id>([[NSObject alloc] init]));
@autoreleasepool {
EXPECT_TRUE(objects[1].get());
}
EXPECT_EQ(1, GetRetainCount(objects[1]));
}
EXPECT_EQ(1, GetRetainCount(p));
}
TEST(ScopedNSObjectTestARC, ScopedNSObjectFreeFunctions) {
base::scoped_nsobject<id> p1([[NSObject alloc] init]);
id o1 = p1.get();
EXPECT_TRUE(o1 == p1);
EXPECT_FALSE(o1 != p1);
base::scoped_nsobject<id> p2([[NSObject alloc] init]);
EXPECT_TRUE(o1 != p2);
EXPECT_FALSE(o1 == p2);
id o2 = p2.get();
swap(p1, p2);
EXPECT_EQ(o2, p1.get());
EXPECT_EQ(o1, p2.get());
}
} // namespace