pirishd / instantmock Goto Github PK

Hi,

Is there a way to know when some closure was called? Follow the example below:

func someFunction(success: @escaping SuccessClosure, failure: @escaping ErrorClosure) {
    let apiUrl = ""
    networkingProvider.get(apiUrl, success: success, failure: failure)
}

I made a mock of networkingProvider and I'd like knowing when the success closure was called. Follow the test example below:

func test_Example() {
     repository.someFunction(success: Arg.closure(), failure: Arg.closure())
}

Is there a way to verify when success/failure closure is called?

@pirishd When trying to use Arg.eq with a dictionary, i.e.

Arg<[String: Any]>.eq(someDictionary)

the compiler throws this error: Ambiguous use of 'eq'
Is there anything I need to do in order for this to work ?

Thanks and great work on the library :)

I just have to set count: 0 ? Or is there any more intuitive way?

Thanks

Hello,

I'm excited to try InstantMock, but unfortunately I'm running into issues installing it in my project. I've created a new project using the swift package manager (4.2) and the issue I'm getting is this:

'foobar' /path/to/the/project: error: product dependency 'InstantMock' not found
warning: dependency 'InstantMock' is not used by any target

My Package.swift looks similar to this (I've removed my project's actual names, etc):

let package = Package(
	name: "foobar",
	dependencies: [
		.package(url: "https://github.com/apple/swift-package-manager.git", from: "0.3.0"),
		.package(url: "https://github.com/pirishd/InstantMock", from: "2.2.1")
	],
	targets: [
		.target(name: "foobar", dependencies: [
			"Utility"
		]),
		.testTarget(name: "foobarTests", dependencies: [
			"foobar",
            		"InstantMock"
		])
    	]
)

It's strange because it knows that "InstantMock" is a dependency, but when I have a target depend on it, swift seems to forget what it is.

Thoughts?

How could I test this method:

func get<T>(_ url: String, success: @escaping ((_ response: T?) -> Void), failure: @escaping ((_ errorMessage: String) -> Void)) where T: BaseMappable

Thanks

How could I execute a closure?

Error when running tests:
ld: '/Applications/Xcode 10.3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks/XCTest.framework/XCTest' does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. file '/Applications/Xcode 10.3.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Frameworks/XCTest.framework/XCTest' for architecture arm64

Xcode 10.3.
Deployment Target 12.3
Swift 5

Podfile:
`target 'RecipePuppy' do
use_frameworks!
pod 'RxSwift'
pod 'RxCocoa'
pod 'SDWebImage'

target 'RecipePuppyUnitTests' do
use_frameworks!
inherit! :search_paths
pod 'InstantMock'
end
end`

I have to make some calls that may throw exceptions inside MockUsable equal method.
What do you think if we could add a Throw option on this method?

Thanks.

Can't use Arg.closure() for closure with single argument

Sometimes I receive a dictionary containing strings that are _NSContiguousString type. I don't know why. However, Verifier is not able to cast to MockUsable so as to compare.

Any tip?

How to do?

I'd like to have a block of setUp with some pre determined default expectations.
And I'd like to have an option to clear some pre determined one(s) at some test cases.

Is this a good idea? Is this worth it?

Thanks.

Do you have any solution for the case below?
AuthenticationSession extends Model. However, I need to make both of then implement MockUsable. Since you are using static var, its impossible to override..

extension AuthenticationSession_: MockUsable {
    public static var any: AuthenticationSession_ {
        let ret = AuthenticationSession_()
        ret.id = "anyId"
        return ret
    }
    
    public static var anyValue: MockUsable {
        return self.any
    }
    
    public func equal(to value: MockUsable?) -> Bool {
        guard let mock = value as? AuthenticationSession_ else { return false }
        return self.id == mock.id
    }
}

extension Model: MockUsable {
    public static var any: Model {
        let ret = Model()
        return ret
    }
    
    public static var anyValue: MockUsable {
        return self.any
    }
    
    public func equal(to value: MockUsable?) -> Bool {
        guard let mock = value as? Model else { return false }
        return false
    }
}

How could I do that?

Let's suppose I have this:

mock.stub().call(
    mock.bar(arg1: Arg.eq("hello"), arg2: Arg.any())
).andReturn(true)

However, its called twice. I would like to start returning true (first call) and finish returning false (second call).

Any tip?

XCode 10.2.1 (10E1001)
InstantMock (2.5.0)

I created a new XCode project and installed InstantMock via Cocoapods. My Podfile is

platform :ios, '10.0'
use_frameworks!

target 'MyApp' do

    target 'MyAppTests' do
        pod 'InstantMock'
    end
end

I created protocol with function that contains UInt parameter

protocol DatabaseService {    
    func fetchMessages(count: UInt, completion: @escaping ([String]) -> ())
}

Because InstantMock does not support UInt type by default, I added extension UInt+MockUsable with target membership assigned to MyAppTests target

extension UInt: MockUsable {
    
    public static let any = 49
    
    public static var anyValue: MockUsable {
        return UInt.any
    }
    
    public func equal(to value: MockUsable?) -> Bool {
        guard let uintValue = value as? UInt else { return false }
        return self == uintValue
    }
}

Then I created a simple test

func testThatControllerWillFetchMessagesOnAppearEvent() {
    
    let controller = MessagesViewController()
    let databaseServiceMock = DatabaseServiceMock()
    controller.databaseService = self.databaseServiceMock

    // when
    controller.viewWillAppear(false)
    
    // then
    databaseServiceMock.expect().call(databaseServiceMock.fetchMessages(count: Arg.any(), completion: Arg.closure()))
}

class DatabaseServiceMock: Mock, DatabaseService {
    
    func fetchMessages(count: UInt, completion: @escaping ([String]) -> ()) {
        return super.call(count, completion)
    }
}

But it falls with error
Fatal error: Unexpected type, only MockUsable types can be used with any: file Arg.swift, line 126

That I missed?
Thank you

Hi.

After swift 5 migration we faced a problem: expectations with dictionary arguments are not always working. According to the investigation the reason of that behaviour is a dictionary comparison algorithm. As keys array order is generally unpredictable the next test is failing floatly:

    func testEqual_toWrongOrder() {
        let dict1: [String: Any] = [
            "foo": 1,
            "bar": 2
        ]
        let dict2: [String: Any] = [
            "bar": 2,
            "foo": 1
        ]

        XCTAssertTrue(dict1.equal(to: dict2))
    }

Hi faced an issue when writing an expectation like
objectUserMock .it .expect() .call(objectUserMock.useObject(Arg.eq(objectStub!)), count: 1)

will retain objectStub inside ArgumentStorageImpl.instance even after calling resetStubs and resetExpectations.
As a temporary workaround you may use objectUserMock.expect() which will clear retained arguments
Here is an example repo which reproduce the issue https://github.com/vladislavsosiuk/InstantMockRetainArgumentIssue.
@pirishd Please let me know if you need more info

When I stub like this:

            self.modelRepository.stub().call(
                self.modelRepository
                    .beginTransaction(
                        options: Arg.any()
                )
            ).andReturn(self.transaction)

How could I test this method:

func getManager<T>(managerType: T.Type) -> T where T:ManagerDelegate

Thanks.

I'm receiving this when I try to pass Arg.eq(nil) to a param that is 'Any?' type.

Any tip?

Hi, I'm trying to set an expectation for a static method by adding a static mock to the mock class so I can use it to use the call function in the static method

private static let mock = Mock()
	
static var it: Mock {
     return mock
}

static func staticMethod(_ arg1:String?) {
     mock.call(arg1)
}

and then in the test itself

mock.it.expect().call(mock.staticMethod("test")

But that generates this error :

Fatal error: Invalid argument configuration, see Arg class for more information

Is there a way to do achieve something like this ?

Is there any way to mock variables?

Suppose this class:

class Car {
   var brand: String?
}

And I'd like to have a MockCar, which I could return my pre-determined brand.

Thanks.

I'm using PromiseKit, and I have methods like:

func doSomething() -> Promise<String> { ... }

How could I mock and stub so as to use .andReturn with "myString" for example?

Thanks

@pirishd Is there a way to make a typealias MockUsable ? I'm getting this message when I try to implement it :

Conformance of 'Dictionary<Key, Value>' to protocol 'MockUsable' conflicts with that stated in the protocol's module 'InstantMock' and will be ignored; there cannot be more than one conformance, even with different conditional bounds

How to do that since I cant make a protocol extends MockUsable?

Since I'm not able to make MyClass a MockUsable, is there any other way to check instead of using Arg.any() ? I tried Arg.verify ... However it also generates an exception.

I'd like to know why its not returning my response:

let response = ["data": "fake-data"]
self.connection.stub().call(
self.connection.post(
Arg.any()
)
).andReturn(response)

How to use self.call inside static methods?