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♻️ :: Removed dependency Observable in favour of an own, more lightweight, implementation.

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Furthermore this commit updates the dependencies `SwiftLint` and `SwiftFormat`
This commit is contained in:
Felix Mau
2019-02-11 21:06:49 +07:00
parent 504236ed4a
commit c629c4bcac
42 changed files with 1041 additions and 1071 deletions
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Example/Tests/ViewModel/GradientLoadingBarViewModelTestCase.swift
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//
// GradientLoadingBarViewModelTestCase.swift
// GradientLoadingBar_Tests
//
// Created by Felix Mau on 12/26/17.
// Copyright © 2017 Felix Mau. All rights reserved.
//
import XCTest
import Observable
@testable import GradientLoadingBar
class GradientLoadingBarViewModelTestCase: XCTestCase {
private var superview: UIView!
private var durations: Durations!
private var sharedApplicationMock: SharedApplicationMock!
private var notificationCenter: NotificationCenter!
var viewModel: GradientLoadingBarViewModel!
override func setUp() {
super.setUp()
superview = UIView()
durations = Durations(fadeIn: 1.2,
fadeOut: 3.4,
progress: 5.6)
sharedApplicationMock = SharedApplicationMock()
notificationCenter = NotificationCenter()
viewModel = GradientLoadingBarViewModel(superview: superview,
durations: durations,
sharedApplication: sharedApplicationMock,
notificationCenter: notificationCenter)
}
override func tearDown() {
viewModel = nil
superview = nil
durations = nil
notificationCenter = nil
sharedApplicationMock = nil
super.tearDown()
}
// MARK: - Test observable `superview`
func testInitializerShouldSetupSuperviewObservableWithCustomSuperview() {
// Then
XCTAssertEqual(viewModel.superview.value,
superview,
"We passed a custom superview to the view-model in `setUp()`, and therfore expect this view to be the superview.")
}
func testInitializerShouldSetupSuperviewObservableWithKeyWindow() {
// Given
let keyWindow = UIWindow()
sharedApplicationMock.keyWindow = keyWindow
// When
let viewModel = GradientLoadingBarViewModel(superview: nil,
durations: durations,
sharedApplication: sharedApplicationMock,
notificationCenter: notificationCenter)
// Then
XCTAssertEqual(viewModel.superview.value,
keyWindow)
}
func testInitializerShouldSetupSuperviewObservableAfterUIWindowDidBecomeKeyNotification() {
// Given
let viewModel = GradientLoadingBarViewModel(superview: nil,
durations: durations,
sharedApplication: sharedApplicationMock,
notificationCenter: notificationCenter)
let keyWindow = UIWindow()
// When
sharedApplicationMock.keyWindow = keyWindow
notificationCenter.post(name: UIWindow.didBecomeKeyNotification,
object: nil)
// Then
XCTAssertEqual(viewModel.superview.value,
keyWindow)
}
func testInitializerShouldSetupSuperviewObservableAfterUIWindowDidBecomeKeyNotificationJustOnce() {
// Given
let viewModel = GradientLoadingBarViewModel(superview: nil,
durations: durations,
sharedApplication: sharedApplicationMock,
notificationCenter: notificationCenter)
var observerCounter = 0
var disposal = Disposal()
viewModel.superview.observe { newSuperview, _ in
guard newSuperview != nil else {
// Skip initial call to observer.
return
}
observerCounter += 1
}.add(to: &disposal)
// When
for _ in 1 ... 3 {
sharedApplicationMock.keyWindow = UIWindow()
notificationCenter.post(name: UIWindow.didBecomeKeyNotification,
object: nil)
}
// Then
XCTAssertEqual(observerCounter, 1)
}
// MARK: - Test observable `animatedVisibilityUpdate`
func testInitializerShouldSetupAnimatedVisibilityUpdateObservableWithImmediatelyHidden() {
// Then
let receivedAnimatedVisibilityUpdate = viewModel.animatedVisibilityUpdate.value
let expectedAnimatedVisibilityUpdate = GradientLoadingBarViewModel.AnimatedVisibilityUpdate.immediatelyHidden
XCTAssertEqual(receivedAnimatedVisibilityUpdate, expectedAnimatedVisibilityUpdate)
}
func testShowShouldUpdateAnimatedVisibilityUpdateObservable() {
// When
viewModel.show()
// Then
let receivedAnimatedVisibilityUpdate = viewModel.animatedVisibilityUpdate.value
let expectedAnimatedVisibilityUpdate = makeAnimatedVisibilityUpdateForStateIsVisible
XCTAssertEqual(receivedAnimatedVisibilityUpdate, expectedAnimatedVisibilityUpdate)
}
func testHideShouldUpdateAnimatedVisibilityUpdateObservable() {
// When
viewModel.hide()
// Then
let receivedAnimatedVisibilityUpdate = viewModel.animatedVisibilityUpdate.value
let expectedAnimatedVisibilityUpdate = makeAnimatedVisibilityUpdateForStateIsHidden
XCTAssertEqual(receivedAnimatedVisibilityUpdate, expectedAnimatedVisibilityUpdate)
}
func testToggleShouldUpdateAnimatedVisibilityUpdateObservable() {
// Given
for idx in 1 ... 5 {
// When
viewModel.toggle()
// Then
let receivedAnimatedVisibilityUpdate = viewModel.animatedVisibilityUpdate.value
let expectedAnimatedVisibilityUpdate: GradientLoadingBarViewModel.AnimatedVisibilityUpdate
let viewShouldBeHidden = idx % 2 == 0
if viewShouldBeHidden {
expectedAnimatedVisibilityUpdate = makeAnimatedVisibilityUpdateForStateIsHidden
} else {
expectedAnimatedVisibilityUpdate = makeAnimatedVisibilityUpdateForStateIsVisible
}
XCTAssertEqual(receivedAnimatedVisibilityUpdate, expectedAnimatedVisibilityUpdate)
}
}
}
// MARK: - Helpers
extension GradientLoadingBarViewModelTestCase {
/// Returns an object for animated visibility updates from state visible to hidden.
var makeAnimatedVisibilityUpdateForStateIsHidden: GradientLoadingBarViewModel.AnimatedVisibilityUpdate {
// swiftlint:disable:previous identifier_name
return GradientLoadingBarViewModel.AnimatedVisibilityUpdate(duration: durations.fadeOut,
isHidden: true)
}
/// Returns an object for animated visibility updates from state hidden to visible.
var makeAnimatedVisibilityUpdateForStateIsVisible: GradientLoadingBarViewModel.AnimatedVisibilityUpdate {
// swiftlint:disable:previous identifier_name
return GradientLoadingBarViewModel.AnimatedVisibilityUpdate(duration: durations.fadeIn,
isHidden: false)
}
}
// MARK: - Mocks
class SharedApplicationMock: UIApplicationProtocol {
var keyWindow: UIWindow?
}