我想开始为我所有的 Moya 请求编写测试用例。如何测试从 Swift 生成的简单 Moya
.get
请求?
这就是我使用 Moya 进行单元测试的方式。我的 NetworkManager 发出所有请求,并且
init
带有默认参数(在生产代码中使用它),因此我们可以在测试时指定不同的提供程序。
class NetworkManager {
private let provider: MoyaProvider<MultiTarget>
init(provider: MoyaProvider<MultiTarget> = MoyaProvider<MultiTarget>()) {
self.provider = provider
}
func createUser(_ user: User, completion: @escaping (Result<User>) -> Void) {
provider.request(MultiTarget(UserApi.createUser(user: user))) { (result) in
switch result {
case .success(let response):
do {
let user = try response.map(User.self)
completion(.success(user))
} catch let error {
completion(.error(error))
}
case .failure(let error):
completion(.error(error))
}
}
}
// other requests...
}
所以在生产代码中你可以有这样的东西:
let manager = NetworkManager()
let viewController = ViewController(networkManager: manager)
关于测试,类似:
class TestMoyaTests: XCTestCase {
var networkManager: NetworkManager!
override func setUp() {
super.setUp()
networkManager = NetworkManager(provider: MoyaProvider<MultiTarget>(stubClosure: MoyaProvider.immediatelyStub))
}
func testGetUser() {
let expected = User(id: "1", name: "John")
var response: User?
networkManager.getUser(id: "1") { (result) in
if case let .success(user) = result {
response = user
}
}
XCTAssert(response == expected)
}
// other tests...
}
或者,如果您想要测试
MoyaProvider
本身,您可以查看 Moya 团队 是如何做到的。
由于存根会立即返回,因此不需要期望或类似的东西(这就是 Moya 团队测试的方式.sampleData
)。
希望这有帮助!
MOYA 为这种情况提供了很多便利。 您可以像这样简单地初始化您的存储库/网络请求(假设您有足够的使用 MOYA 的知识)
init(testMode: Bool = false) {
if testMode {
// If we want to mock API response with immediate response
provider = MoyaProvider<Endpoint>(stubClosure: MoyaProvider<Endpoint>.immediatelyStub(_:))
} else if delayedTestAPIMode {
// If we want to mock API response with some delay
provider = MoyaProvider<Endpoint>(stubClosure: MoyaProvider<Endpoint>.delayedStub(3))
} else {
// Actual response from server
provider = MoyaProvider<Endpoint>(plugins: []) // Provide plugins if you have any
}
}
然后在 Moya 的 TargetType 协议实现中返回您可能拥有的相应 API 的示例响应
var sampleData: Data {
switch self {
case .anyAPI:
return sampleResponseEscapedJSON.utf8Encoded
default:
// Default response for every API
return "{\"response_code\": 200, \"response_message\": \"Successfull\"}".utf8Encoded
}
}
已使用的扩展
private extension String {
var utf8Encoded: Data { Data(self.utf8) }
}
您可以使用 OCMock 存根完成处理程序并返回您自己的完成处理程序。 示例 -
__block UIView *mockViewAnimation;
__block void(^animationsBlock)(void);
__block void(^completionBlock)(BOOL);
beforeEach(^{
void (^viewAnimation)(NSInvocation *) = ^(NSInvocation *invocation) {
[invocation retainArguments];
[invocation getArgument:&animationsBlock atIndex:5];
[invocation getArgument:&completionBlock atIndex:6];
};
mockViewAnimation = OCMClassMock([UIView class]);
// This stub tests the animation with duration, delay, and options
// Animation and Completion aren't tested here because they'll have their own tests.
OCMStub([mockViewAnimation animateWithDuration:1
delay:0
options:UIViewAnimationOptionCurveEaseIn
animations:[OCMArg any]
completion:[OCMArg any]]).andDo(viewAnimation);
[sut viewDidLoad];
});
然后你可以调用animationsBlock();或完成块(是);
这是一个模拟完成处理程序的示例,您可以使用相同的逻辑来模拟 Mayo 完成处理程序。或其他任何东西。