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ASWeakMapTests.m
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//
// ASWeakMapTests.m
// AsyncDisplayKit
//
// Created by Chris Danford on 7/23/16.
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#import <XCTest/XCTest.h>
#import "ASWeakMap.h"
NS_ASSUME_NONNULL_BEGIN
@interface ASWeakMapTests : XCTestCase
@end
@implementation ASWeakMapTests
- (void)testKeyAndValueAreReleasedWhenEntryIsReleased
{
ASWeakMap <NSObject *, NSObject *> *weakMap = [[ASWeakMap alloc] init];
__weak NSObject *weakKey;
__weak NSObject *weakValue;
@autoreleasepool {
NSObject *key = [[NSObject alloc] init];
NSObject *value = [[NSObject alloc] init];
ASWeakMapEntry *entry = [weakMap setObject:value forKey:key];
XCTAssertEqual([weakMap entryForKey:key], entry);
weakKey = key;
weakValue = value;
}
XCTAssertNil(weakKey);
XCTAssertNil(weakValue);
}
- (void)testKeyEquality
{
ASWeakMap <NSString *, NSObject *> *weakMap = [[ASWeakMap alloc] init];
NSString *keyA = @"key";
NSString *keyB = [keyA copy]; // `isEqual` but not pointer equal
NSObject *value = [[NSObject alloc] init];
ASWeakMapEntry *entryA = [weakMap setObject:value forKey:keyA];
ASWeakMapEntry *entryB = [weakMap entryForKey:keyB];
XCTAssertEqual(entryA, entryB);
}
@end
NS_ASSUME_NONNULL_END