69 lines
1.8 KiB
Plaintext
69 lines
1.8 KiB
Plaintext
// Copyright 2021 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import <XCTest/XCTest.h>
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#import "mediapipe/objc/MPPDisplayLinkWeakTarget.h"
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@interface DummyTarget : NSObject
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@property(nonatomic) BOOL updateCalled;
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- (void)update:(id)sender;
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@end
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@implementation DummyTarget
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@synthesize updateCalled = _updateCalled;
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- (void)update:(id)sender {
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_updateCalled = YES;
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}
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@end
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@interface MPPDisplayLinkWeakTargetTests : XCTestCase
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@end
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@implementation MPPDisplayLinkWeakTargetTests {
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DummyTarget *_dummyTarget;
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}
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- (void)setUp {
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_dummyTarget = [[DummyTarget alloc] init];
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}
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- (void)testCallingLiveTarget {
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XCTAssertFalse(_dummyTarget.updateCalled);
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MPPDisplayLinkWeakTarget *target =
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[[MPPDisplayLinkWeakTarget alloc] initWithTarget:_dummyTarget
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selector:@selector(update:)];
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[target displayLinkCallback:nil];
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XCTAssertTrue(_dummyTarget.updateCalled);
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}
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- (void)testDoesNotCrashWhenTargetIsDeallocated {
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MPPDisplayLinkWeakTarget *target =
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[[MPPDisplayLinkWeakTarget alloc] initWithTarget:_dummyTarget
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selector:@selector(update:)];
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_dummyTarget = nil;
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[target displayLinkCallback:nil];
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XCTAssertNil(_dummyTarget);
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}
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@end
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