Initiate the RegistrationPresenter object

TheRegistrationPageTests.swift

class TheRegistrationPageTests: XCTestCase {
   
    override func setUp() {
        super.setUp()
    }
    //... 
    func testRegisterWithEmptyEmail(){
        let expec = expectation(description: "registration with empty email")
        let registrationPresenter = RegistrationPresenter(delegate: MockUIViewController1(expectation: expec))
        registrationPresenter.register(email: "", password: "123456789", fullName: "michel jhon", phoneNumber: "087654325673")
        wait(for: [expec], timeout: 3)
    }
    //...
}
//there are the mock of UIviewController which using the Presenter
class MockUIViewController1: RegistrationDelegate{
    var expec: XCTestExpectation
    init(expectation: XCTestExpectation) {
        self.expec = expectation
    }
    func showProgress(){}
    func hideProgress(){}
    func registrationDidSucceed(){}
    func registrationDidFailed(message: String){
        XCTAssertEqual(message, "email can't be blank")
        self.expec.fulfill()
    }
}