如何在Obj C中编写无补全块的异步方法的单元测试

#import <XCTest/XCTest.h>

@interface MyAsyncClass : NSObject

- (void)asyncMethodWithCompletion:(void (^)(void))completion;

@end

@implementation MyAsyncClass

- (void)asyncMethodWithCompletion:(void (^)(void))completion {
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        // 异步操作
        // ...
        
        // 完成后调用completion块
        if (completion) {
            completion();
        }
    });
}

@end

@interface MyAsyncClassTests : XCTestCase

@end

@implementation MyAsyncClassTests

- (void)testAsyncMethod {
    XCTestExpectation *expectation = [self expectationWithDescription:@"异步方法完成"];
    
    MyAsyncClass *asyncClass = [[MyAsyncClass alloc] init];
    [asyncClass asyncMethodWithCompletion:^{
        // 异步方法完成后的操作
        
        // 断言验证结果
        XCTAssertTrue(YES);
        
        // 标记期望对象完成
        [expectation fulfill];
    }];
    
    [self waitForExpectationsWithTimeout:5.0 handler:^(NSError *error) {
        if (error) {
            XCTFail(@"超时：%@", error);
        }
    }];
}

@end