ResearchKit/ResearchKitTests/ORKPasscodeViewControllerTests.swift

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import XCTest
@testable import ResearchKit
import ResearchKit_Private
@testable import ResearchKitUI
import ResearchKitUI_Private

class ORKPasscodeViewControllerTests: XCTestCase {
    
    var testController: ORKPasscodeViewController!
    var resultController: ORKPasscodeStepViewController?
    var asyncExpectation: XCTestExpectation?
    
    func testPasscodeAuthenticationView() {
        testController = ORKPasscodeViewController.passcodeAuthenticationViewController(withText: "TEST", delegate: self)
        XCTAssertEqual(testController.navigationBar.isTranslucent, false)
        XCTAssert(testController.navigationBar.shadowImage != nil)
        
        
        guard let stepViewController = testController.viewControllers.first as? ORKPasscodeStepViewController,
            let step = stepViewController.step as? ORKPasscodeStep else {
                XCTFail("failed to cast step as ORKPascodeStep")
                return
        }
        
        XCTAssertEqual(step.identifier, "passcode_step")
        XCTAssertEqual(step.passcodeFlow, ORKPasscodeFlow.authenticate)
        XCTAssertEqual(step.passcodeType, ORKPasscodeType.type4Digit)
        XCTAssertEqual(step.text, "TEST")
    }
    
    func testPasscodeEditView() {
        testController = ORKPasscodeViewController.passcodeEditingViewController(withText: "TEST", delegate: self, passcodeType: .type6Digit)
        
        guard let stepViewController = testController.viewControllers.first as? ORKPasscodeStepViewController,
            let step = stepViewController.step as? ORKPasscodeStep else {
                XCTFail("failed to cast step as ORKPascodeStep")
                return
        }
        
        XCTAssertEqual(step.passcodeFlow, ORKPasscodeFlow.edit)
        XCTAssertEqual(step.passcodeType, ORKPasscodeType.type6Digit)
    }
    
    func testPasscodeViewControllerDelegateCalls() {
        testController = ORKPasscodeViewController.passcodeEditingViewController(withText: "TEST", delegate: self, passcodeType: .type4Digit)
        
        guard let stepController = testController.viewControllers.first as? ORKPasscodeStepViewController else {
            XCTFail("unable to cast view controller as ORKPasscodeStepViewController")
            return
        }
        
        var testExpectation = expectation(description: "ORKPasscodeViewController calls the delegate as the result of the user authenticating or finishing editing")
        self.asyncExpectation = testExpectation
        
        stepController.passcodeDelegate?.passcodeViewControllerDidFinish(withSuccess: stepController)
        
        waitForExpectations(timeout: 10) { (error) in
            if let error = error {
                XCTFail("waitForExpectationWithTimeout error: \(error)")
            }
        }
        
        testExpectation = expectation(description: "ORKPasscodeViewController calls the delegate as the result of the user cancelling")
        self.asyncExpectation = testExpectation
        
        stepController.passcodeDelegate?.passcodeViewControllerDidCancel?(stepController)
        
        waitForExpectations(timeout: 10) { (error) in
            if let error = error {
                XCTFail("waitForExpectationWithTimeout error: \(error)")
            }
        }
        
        testExpectation = expectation(description: "ORKPasscodeViewController calls the delegate as the result of failed authentication")
        self.asyncExpectation = testExpectation
        
        stepController.passcodeDelegate?.passcodeViewControllerDidFailAuthentication(stepController)
        
        waitForExpectations(timeout: 10) { (error) in
            if let error = error {
                XCTFail("waitForExpectationWithTimeout error: \(error)")
            }
        }
        
        
        testExpectation = expectation(description: "ORKPasscodeViewController calls the delegate as the result of user forgetting passcode")
        self.asyncExpectation = testExpectation
        
        stepController.passcodeDelegate?.passcodeViewControllerForgotPasscodeTapped?(stepController)
        
        waitForExpectations(timeout: 10) { (error) in
            if let error = error {
                XCTFail("waitForExpectationWithTimeout error: \(error)")
            }
        }
    }
}

extension ORKPasscodeViewControllerTests: ORKPasscodeDelegate {
    func passcodeViewControllerDidFinish(withSuccess viewController: UIViewController) {
        guard let expectation = asyncExpectation else {
            XCTFail("Delegate was not setup correctly. Missing XCTExpectation reference")
            return
        }
        expectation.fulfill()
    }
    
    func passcodeViewControllerDidFailAuthentication(_ viewController: UIViewController) {
        guard let expectation = asyncExpectation else {
            XCTFail("Delegate was not setup correctly. Missing XCTExpectation reference")
            return
        }
        expectation.fulfill()
    }
    
    func passcodeViewControllerDidCancel(_ viewController: UIViewController) {
        guard let expectation = asyncExpectation else {
            XCTFail("Delegate was not setup correctly. Missing XCTExpectation reference")
            return
        }
        expectation.fulfill()
    }
    
    func passcodeViewControllerForgotPasscodeTapped(_ viewController: UIViewController) {
        guard let expectation = asyncExpectation else {
            XCTFail("Delegate was not setup correctly. Missing XCTExpectation reference")
            return
        }
        expectation.fulfill()
    }
}