Created
March 3, 2024 06:33
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| // MARK: - Main Target | |
| protocol HTTPSession { | |
| func dataTask(with url: URL, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void) -> HTTPSessionTask | |
| } | |
| protocol HTTPSessionTask { | |
| func resume() | |
| } | |
| final class HTTPClient { | |
| let session: HTTPSession | |
| init(session: HTTPSession) { | |
| self.session = session | |
| } | |
| func get(from url: URL) { | |
| session.dataTask(with: URLRequest(url: url)).resume() | |
| } | |
| } | |
| // MARK: - Test Target | |
| final class HTTPClientTests { | |
| func test_initHTTPClient_sessionNotNil() { | |
| let sut = makeSUT() | |
| XCTAssertNotNil(sut.session) | |
| } | |
| func makeSUT() -> HTTPClient { | |
| return HTTPClient(session: URLSessionSpy()) | |
| } | |
| } | |
| final class URLSessionSpy: HTTPSession { | |
| func dataTask(with url: URL, completionHandler: @escaping (Data?, URLResponse?, Error?) -> Void) -> HTTPSessionTask { | |
| completionHandler(nil, nil, nil) | |
| return SampleURLSessionDataTask() | |
| } | |
| private class SampleURLSessionDataTask: HTTPSessionTask { | |
| func resume() { | |
| print("resume called") | |
| } | |
| } | |
| } |
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