如何在 Obj C 中编写没有完成块的异步方法的单元测试

How to Write Unit test of a async method without completion Block in Obj C

我有一个在内部调用 API 的方法。该方法没有任何完成处理程序。

-(void) methodToBeTested{
    [self callAPIWithCompletionHandler:^(NSArray *data,NSError *error)
     {
         //Here I get the response and sets the models.
     }];
}

现在我需要测试方法 "methodToBeTested" 在 API 调用后设置的模型基础。

有什么建议吗?

示例:

XCTestExpectation *documentOpenExpectation = [self expectationWithDescription:@"document open"];

NSURL *URL = [[NSBundle bundleForClass:[self class]]
                              URLForResource:@"TestDocument" withExtension:@"mydoc"];
UIDocument *doc = [[UIDocument alloc] initWithFileURL:URL];

[doc openWithCompletionHandler:^(BOOL success) {
    XCTAssert(success);
    [documentOpenExpectation fulfill];
}];

[self waitForExpectationsWithTimeout:1 handler:^(NSError *error) {
    [doc closeWithCompletionHandler:nil];
}];

查看 Testing with Xcode 文档下的 Writing Tests of Asynchronous Operations。 https://developer.apple.com/library/content/documentation/DeveloperTools/Conceptual/testing_with_xcode/chapters/04-writing_tests.html