✅ :: Adapt test cases

Example/GradientLoadingBar.xcodeproj/project.pbxproj

@@ -13,7 +13,7 @@
 		607FACDD1AFB9204008FA782 /* Images.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 607FACDC1AFB9204008FA782 /* Images.xcassets */; };
 		607FACE01AFB9204008FA782 /* LaunchScreen.xib in Resources */ = {isa = PBXBuildFile; fileRef = 607FACDE1AFB9204008FA782 /* LaunchScreen.xib */; };
 		64E0F5BF2211B7D20066D00D /* GradientLoadingBarViewModelTestCase.swift in Sources */ = {isa = PBXBuildFile; fileRef = 64E0F5BB2211B7D20066D00D /* GradientLoadingBarViewModelTestCase.swift */; };
-		64E7F4252293E16B00BE5095 /* UIView+AnimateIsHiddenTestCase.swift in Sources */ = {isa = PBXBuildFile; fileRef = 64E7F4242293E16B00BE5095 /* UIView+AnimateIsHiddenTestCase.swift */; };
+		64E7F4252293E16B00BE5095 /* GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift in Sources */ = {isa = PBXBuildFile; fileRef = 64E7F4242293E16B00BE5095 /* GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift */; };
 		77357BD34CFF2778341F80E8 /* Pods_GradientLoadingBar_Example.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 03CD5D69D7C3FBBDBF5FABBB /* Pods_GradientLoadingBar_Example.framework */; };
 		8020C040972E902A8CCAA9E7 /* Pods_GradientLoadingBar_Tests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 434E3C8A6E245A38C2831E73 /* Pods_GradientLoadingBar_Tests.framework */; };
 		972CFBCC2138849A006F14C9 /* SafeAreaExampleViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 972CFBCB2138849A006F14C9 /* SafeAreaExampleViewController.swift */; };
@@ -51,7 +51,7 @@
 		607FACE51AFB9204008FA782 /* GradientLoadingBar_Tests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = GradientLoadingBar_Tests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		607FACEA1AFB9204008FA782 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		64E0F5BB2211B7D20066D00D /* GradientLoadingBarViewModelTestCase.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = GradientLoadingBarViewModelTestCase.swift; sourceTree = "<group>"; };
-		64E7F4242293E16B00BE5095 /* UIView+AnimateIsHiddenTestCase.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "UIView+AnimateIsHiddenTestCase.swift"; sourceTree = "<group>"; };
+		64E7F4242293E16B00BE5095 /* GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift"; sourceTree = "<group>"; };
 		972CFBCB2138849A006F14C9 /* SafeAreaExampleViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SafeAreaExampleViewController.swift; sourceTree = "<group>"; };
 		97464E6621372BCD0097183A /* AdvancedExampleViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AdvancedExampleViewController.swift; sourceTree = "<group>"; };
 		97464E6821372C010097183A /* NavigationBarExampleViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NavigationBarExampleViewController.swift; sourceTree = "<group>"; };
@@ -134,8 +134,8 @@
 		607FACE81AFB9204008FA782 /* Tests */ = {
 			isa = PBXGroup;
 			children = (
-				64E7F4222293E16B00BE5095 /* Extensions */,
-				64E0F5BB2211B7D20066D00D /* GradientLoadingBarViewModelTestCase.swift */,
+				64C6B3E72313259500076A69 /* ViewModel */,
+				64E7F4222293E16B00BE5095 /* View */,
 				607FACE91AFB9204008FA782 /* Supporting Files */,
 			);
 			path = Tests;
@@ -159,20 +159,20 @@
 			name = "Podspec Metadata";
 			sourceTree = "<group>";
 		};
-		64E7F4222293E16B00BE5095 /* Extensions */ = {
+		64C6B3E72313259500076A69 /* ViewModel */ = {
 			isa = PBXGroup;
 			children = (
-				64E7F4232293E16B00BE5095 /* UIView */,
+				64E0F5BB2211B7D20066D00D /* GradientLoadingBarViewModelTestCase.swift */,
 			);
-			path = Extensions;
+			path = ViewModel;
 			sourceTree = "<group>";
 		};
-		64E7F4232293E16B00BE5095 /* UIView */ = {
+		64E7F4222293E16B00BE5095 /* View */ = {
 			isa = PBXGroup;
 			children = (
-				64E7F4242293E16B00BE5095 /* UIView+AnimateIsHiddenTestCase.swift */,
+				64E7F4242293E16B00BE5095 /* GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift */,
 			);
-			path = UIView;
+			path = View;
 			sourceTree = "<group>";
 		};
 		97B6F5F92143F31F008CFEA5 /* Extensions */ = {
@@ -453,7 +453,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				64E0F5BF2211B7D20066D00D /* GradientLoadingBarViewModelTestCase.swift in Sources */,
-				64E7F4252293E16B00BE5095 /* UIView+AnimateIsHiddenTestCase.swift in Sources */,
+				64E7F4252293E16B00BE5095 /* GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

Example/Tests/GradientLoadingBarViewModelTestCase.swift

@@ -1,202 +0,0 @@
-//
-//  GradientLoadingBarViewModelTestCase.swift
-//  GradientLoadingBar_Tests
-//
-//  Created by Felix Mau on 12/26/17.
-//  Copyright © 2017 Felix Mau. All rights reserved.
-//
-
-import XCTest
-
-@testable import LightweightObservable
-@testable import GradientLoadingBar
-
-class GradientLoadingBarViewModelTestCase: XCTestCase {
-    // MARK: - Private properties
-
-    private var superview: UIView!
-    private var durations: Durations!
-    private var sharedApplicationMock: SharedApplicationMock!
-    private var notificationCenter: NotificationCenter!
-
-    private var viewModel: GradientLoadingBarViewModel!
-
-    // MARK: - Public methods
-
-    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)
-
-        let expectation = self.expectation(description: "Expected observer for superview to be informed just once.")
-
-        var disposeBag = DisposeBag()
-        viewModel.superview.subscribe { newSuperview, _ in
-            guard newSuperview != nil else {
-                // Skip initial call to observer.
-                return
-            }
-
-            expectation.fulfill()
-        }.disposed(by: &disposeBag)
-
-        // When
-        for _ in 1 ... 3 {
-            sharedApplicationMock.keyWindow = UIWindow()
-            notificationCenter.post(name: UIWindow.didBecomeKeyNotification,
-                                    object: nil)
-        }
-
-        // Then
-        wait(for: [expectation], timeout: 0.1)
-    }
-
-    // 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.
-    func makeAnimatedVisibilityUpdateForStateIsHidden() -> GradientLoadingBarViewModel.AnimatedVisibilityUpdate {
-        return GradientLoadingBarViewModel.AnimatedVisibilityUpdate(duration: durations.fadeOut,
-                                                                    isHidden: true)
-    }
-
-    /// Returns an object for animated visibility updates from state hidden to visible.
-    func makeAnimatedVisibilityUpdateForStateIsVisible() -> GradientLoadingBarViewModel.AnimatedVisibilityUpdate {
-        return GradientLoadingBarViewModel.AnimatedVisibilityUpdate(duration: durations.fadeIn,
-                                                                    isHidden: false)
-    }
-}
-
-// MARK: - Mocks
-
-class SharedApplicationMock: UIApplicationProtocol {
-    var keyWindow: UIWindow?
-}

Example/Tests/View/GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift

@@ -1,5 +1,5 @@
 //
-//  UIView+AnimateIsHiddenTestCase.swift
+//  GradientActivityIndicatorView+AnimateIsHiddenTestCase.swift
 //  GradientLoadingBar_Tests
 //
 //  Created by Felix Mau on 19/05/19.
@@ -14,7 +14,7 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
     // MARK: - Private properties
 
     private var window: UIWindow!
-    private var view: UIView!
+    private var gradientActivityIndicatorView: GradientActivityIndicatorView!
 
     // MARK: - Public methods
 
@@ -25,13 +25,13 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
         // Therefore we're gonna use the current key-window, add our testing view here in `setUp()` and remove it later in `tearDown()`.
         window = UIApplication.shared.keyWindow
 
-        view = UIView()
-        window.addSubview(view)
+        gradientActivityIndicatorView = GradientActivityIndicatorView()
+        window.addSubview(gradientActivityIndicatorView)
     }
 
     override func tearDown() {
-        view.removeFromSuperview()
-        view = nil
+        gradientActivityIndicatorView.removeFromSuperview()
+        gradientActivityIndicatorView = nil
 
         window = nil
 
@@ -45,19 +45,19 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
         let expectation = self.expectation(description: "Expect completion handler to be called.")
 
         // Hide view to validate fade-in.
-        view.alpha = 0.0
-        view.isHidden = true
+        gradientActivityIndicatorView.alpha = 0.0
+        gradientActivityIndicatorView.isHidden = true
 
         // When
-        view.animate(isHidden: false, duration: 0.1) { _ in
+        gradientActivityIndicatorView.animate(isHidden: false, duration: 0.1) { _ in
             expectation.fulfill()
         }
 
         // Then
         wait(for: [expectation], timeout: 0.2)
 
-        XCTAssertFalse(view.isHidden)
-        XCTAssertEqual(view.alpha, 1.0, accuracy: CGFloat.ulpOfOne)
+        XCTAssertFalse(gradientActivityIndicatorView.isHidden)
+        XCTAssertEqual(gradientActivityIndicatorView.alpha, 1.0, accuracy: CGFloat.ulpOfOne)
     }
 
     func testAnimateIsHiddenShouldHideViewAndCallCompletionHandler() {
@@ -65,15 +65,15 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
         let expectation = self.expectation(description: "Expect completion handler to be called.")
 
         // When
-        view.animate(isHidden: true, duration: 0.1) { _ in
+        gradientActivityIndicatorView.animate(isHidden: true, duration: 0.1) { _ in
             expectation.fulfill()
         }
 
         // Then
         wait(for: [expectation], timeout: 0.2)
 
-        XCTAssertTrue(view.isHidden)
-        XCTAssertEqual(view.alpha, 0.0, accuracy: CGFloat.ulpOfOne)
+        XCTAssertTrue(gradientActivityIndicatorView.isHidden)
+        XCTAssertEqual(gradientActivityIndicatorView.alpha, 0.0, accuracy: CGFloat.ulpOfOne)
     }
 
     func testAnimateIsHiddenWithCancelationShouldResetIsHiddenFlagAndCallCompletionHandler() {
@@ -81,17 +81,17 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
         let expectation = self.expectation(description: "Expect completion handler to be called.")
 
         // When
-        view.animate(isHidden: true, duration: 0.1) { _ in
+        gradientActivityIndicatorView.animate(isHidden: true, duration: 0.1) { _ in
             expectation.fulfill()
         }
 
         // Cancel animation.
-        view.layer.removeAllAnimations()
+        gradientActivityIndicatorView.layer.removeAllAnimations()
 
         // Then
         wait(for: [expectation], timeout: 0.2)
 
-        XCTAssertFalse(view.isHidden, "As we've interrupted the animation, we expect the `isHidden` flag to still be `false`.")
+        XCTAssertFalse(gradientActivityIndicatorView.isHidden, "As we've interrupted the animation, we expect the `isHidden` flag to still be `false`.")
     }
 
     // MARK: - Test method `fadeIn()`
@@ -101,19 +101,19 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
         let expectation = self.expectation(description: "Expect completion handler to be called.")
 
         // Hide view to validate fade-in.
-        view.alpha = 0.0
-        view.isHidden = true
+        gradientActivityIndicatorView.alpha = 0.0
+        gradientActivityIndicatorView.isHidden = true
 
         // When
-        view.fadeIn(duration: 0.1) { _ in
+        gradientActivityIndicatorView.fadeIn(duration: 0.1) { _ in
             expectation.fulfill()
         }
 
         // Then
         wait(for: [expectation], timeout: 0.2)
 
-        XCTAssertFalse(view.isHidden)
-        XCTAssertEqual(view.alpha, 1.0, accuracy: CGFloat.ulpOfOne)
+        XCTAssertFalse(gradientActivityIndicatorView.isHidden)
+        XCTAssertEqual(gradientActivityIndicatorView.alpha, 1.0, accuracy: CGFloat.ulpOfOne)
     }
 
     // MARK: - Test method `fadeOut()`
@@ -123,15 +123,15 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
         let expectation = self.expectation(description: "Expect completion handler to be called.")
 
         // When
-        view.fadeOut(duration: 0.1) { _ in
+        gradientActivityIndicatorView.fadeOut(duration: 0.1) { _ in
             expectation.fulfill()
         }
 
         // Then
         wait(for: [expectation], timeout: 0.2)
 
-        XCTAssertTrue(view.isHidden)
-        XCTAssertEqual(view.alpha, 0.0, accuracy: CGFloat.ulpOfOne)
+        XCTAssertTrue(gradientActivityIndicatorView.isHidden)
+        XCTAssertEqual(gradientActivityIndicatorView.alpha, 0.0, accuracy: CGFloat.ulpOfOne)
     }
 
     func testFadeOutWithCancelationShouldResetIsHiddenFlagAndCallCompletionHandler() {
@@ -139,16 +139,16 @@ class UIViewAnimateIsHiddenTestCase: XCTestCase {
         let expectation = self.expectation(description: "Expect completion handler to be called.")
 
         // When
-        view.fadeOut(duration: 0.1) { _ in
+        gradientActivityIndicatorView.fadeOut(duration: 0.1) { _ in
             expectation.fulfill()
         }
 
         // Cancel animation.
-        view.layer.removeAllAnimations()
+        gradientActivityIndicatorView.layer.removeAllAnimations()
 
         // Then
         wait(for: [expectation], timeout: 0.2)
 
-        XCTAssertFalse(view.isHidden, "As we've interrupted the animation, we expect the `isHidden` flag to still be `false`.")
+        XCTAssertFalse(gradientActivityIndicatorView.isHidden, "As we've interrupted the animation, we expect the `isHidden` flag to still be `false`.")
     }
 }

Example/Tests/ViewModel/GradientLoadingBarViewModelTestCase.swift

@@ -0,0 +1,147 @@
+//
+//  GradientLoadingBarViewModelTestCase.swift
+//  GradientLoadingBar_Tests
+//
+//  Created by Felix Mau on 12/26/17.
+//  Copyright © 2017 Felix Mau. All rights reserved.
+//
+
+import XCTest
+
+@testable import LightweightObservable
+@testable import GradientLoadingBar
+
+class GradientLoadingBarViewModelTestCase: XCTestCase {
+    // MARK: - Types
+
+    typealias VisibilityAnimation = GradientLoadingBarViewModel.VisibilityAnimation
+
+    // MARK: - Private properties
+
+    private var sharedApplicationMock: SharedApplicationMock!
+    private var notificationCenter: NotificationCenter!
+
+    private var viewModel: GradientLoadingBarViewModel!
+
+    // MARK: - Public methods
+
+    override func setUp() {
+        super.setUp()
+
+        sharedApplicationMock = SharedApplicationMock()
+        notificationCenter = NotificationCenter()
+
+        viewModel = GradientLoadingBarViewModel(sharedApplication: sharedApplicationMock,
+                                                notificationCenter: notificationCenter)
+    }
+
+    override func tearDown() {
+        viewModel = nil
+
+        notificationCenter = nil
+        sharedApplicationMock = nil
+
+        super.tearDown()
+    }
+
+    // MARK: - Test observable `superview`
+
+    func testInitializerShouldSetupSuperviewObservableWithKeyWindow() {
+        // Given
+        let keyWindow = UIWindow()
+        sharedApplicationMock.keyWindow = keyWindow
+
+        // When
+        let viewModel = GradientLoadingBarViewModel(sharedApplication: sharedApplicationMock,
+                                                    notificationCenter: notificationCenter)
+
+        // Then
+        XCTAssertEqual(viewModel.superview.value,
+                       keyWindow)
+    }
+
+    func testInitializerShouldSetupSuperviewObservableAfterUIWindowDidBecomeKeyNotification() {
+        // Given
+        let viewModel = GradientLoadingBarViewModel(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(sharedApplication: sharedApplicationMock,
+                                                    notificationCenter: notificationCenter)
+
+        let expectation = self.expectation(description: "Expected observer for superview to be informed just once.")
+
+        var disposeBag = DisposeBag()
+        viewModel.superview.subscribe { newSuperview, _ in
+            guard newSuperview != nil else {
+                // Skip initial call to observer.
+                return
+            }
+
+            expectation.fulfill()
+        }.disposed(by: &disposeBag)
+
+        // When
+        for _ in 1 ... 3 {
+            sharedApplicationMock.keyWindow = UIWindow()
+            notificationCenter.post(name: UIWindow.didBecomeKeyNotification,
+                                    object: nil)
+        }
+
+        // Then
+        wait(for: [expectation], timeout: 0.1)
+    }
+
+    // MARK: - Test observable `visibilityAnimation`
+
+    func testInitializerShouldSetupVisibilityAnimationObservableWithImmediatelyHidden() {
+        // Then
+        let receivedVisibilityAnimation = viewModel.visibilityAnimation.value
+        let expectedVisibilityAnimation = VisibilityAnimation.immediatelyHidden
+
+        XCTAssertEqual(receivedVisibilityAnimation, expectedVisibilityAnimation)
+    }
+
+    func testShowShouldUpdateVisibilityAnimationObservable() {
+        // When
+        viewModel.show()
+
+        // Then
+        let receivedVisibilityAnimation = viewModel.visibilityAnimation.value
+        let expectedVisibilityAnimation = VisibilityAnimation(duration: viewModel.fadeInDuration,
+                                                              isHidden: false)
+
+        XCTAssertEqual(receivedVisibilityAnimation, expectedVisibilityAnimation)
+    }
+
+    func testHideShouldUpdateVisibilityAnimationObservable() {
+        // When
+        viewModel.hide()
+
+        // Then
+        let receivedVisibilityAnimation = viewModel.visibilityAnimation.value
+        let expectedVisibilityAnimation = VisibilityAnimation(duration: viewModel.fadeOutDuration,
+                                                              isHidden: true)
+
+        XCTAssertEqual(receivedVisibilityAnimation, expectedVisibilityAnimation)
+    }
+}
+
+// MARK: - Mocks
+
+class SharedApplicationMock: UIApplicationProtocol {
+    var keyWindow: UIWindow?
+}