solving-dependencies-in-Swift-9.swift

class ViewControllerWithoutCLTests: XCTestCase {

    var sut: ViewControllerWithoutCL!
    var locationProvider: UserLocationProviderMock!

    override func setUp() {
        super.setUp()
        locationProvider = UserLocationProviderMock()
        sut = ViewControllerWithoutCL(locationProvider: locationProvider)
    }

    override func tearDown() {
        sut = nil
        locationProvider = nil
        super.tearDown()
    }

    func testRequestUserLocation_NotAuthorized_ShouldFail() {
        // Given
        locationProvider.locationBlockLocationValue = UserLocationMock()
        locationProvider.locationBlockErrorValue    = UserLocationError.canNotBeLocated

        // When
        sut.requestUserLocation()

        // Then
        XCTAssertNil(sut.userLocation)
    }

    func testRequestUserLocation_Authorized_ShouldReturnUserLocation() {
        // Given
        locationProvider.locationBlockLocationValue = UserLocationMock()

        // When
        sut.requestUserLocation()

        // Then
        XCTAssertNotNil(sut.userLocation)
    }
}