✅ :: Add snapshot tests

2026-06-16 12:24:31 +00:00 · 2020-06-15 20:55:48 +02:00
parent 175baf0530
commit 48fdffcbeb
12 changed files with 192 additions and 2 deletions
@@ -28,6 +28,9 @@
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 		97B6F5FF2143F31F008CFEA5 /* BlueFilledButton.swift in Sources */ = {isa = PBXBuildFile; fileRef = 97B6F5FC2143F31F008CFEA5 /* BlueFilledButton.swift */; };
 		97B6F6002143F31F008CFEA5 /* BlueBorderedButton.swift in Sources */ = {isa = PBXBuildFile; fileRef = 97B6F5FD2143F31F008CFEA5 /* BlueBorderedButton.swift */; };
+		DC190F622496A25A0069E2B0 /* NotchGradientLoadingBarControllerTestCase.swift in Sources */ = {isa = PBXBuildFile; fileRef = DC190F602496A24F0069E2B0 /* NotchGradientLoadingBarControllerTestCase.swift */; };
+		DCE3AB13249761B300889FFA /* Snapshotting+WindowedImage.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCE3AB11249761AB00889FFA /* Snapshotting+WindowedImage.swift */; };
+		DCE3AB16249764BB00889FFA /* GradientLoadingBarControllerTestCase.swift in Sources */ = {isa = PBXBuildFile; fileRef = DCE3AB14249764A000889FFA /* GradientLoadingBarControllerTestCase.swift */; };
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 /* Begin PBXContainerItemProxy section */
@@ -81,6 +84,10 @@
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 		ABA9B1EF5F3928BA6E31D3EA /* Pods_GradientLoadingBar_SnapshotTests.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_GradientLoadingBar_SnapshotTests.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		C06CA4DFA1DCB931095ABD3D /* GradientLoadingBar.podspec */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text; name = GradientLoadingBar.podspec; path = ../GradientLoadingBar.podspec; sourceTree = "<group>"; };
+		DC190F602496A24F0069E2B0 /* NotchGradientLoadingBarControllerTestCase.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NotchGradientLoadingBarControllerTestCase.swift; sourceTree = "<group>"; };
+		DCE3AB11249761AB00889FFA /* Snapshotting+WindowedImage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Snapshotting+WindowedImage.swift"; sourceTree = "<group>"; };
+		DCE3AB14249764A000889FFA /* GradientLoadingBarControllerTestCase.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = GradientLoadingBarControllerTestCase.swift; sourceTree = "<group>"; };
+		DCE3AB172497670400889FFA /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
 		E7B292793F03D669ACAA92D2 /* Pods-GradientLoadingBar_SnapshotTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-GradientLoadingBar_SnapshotTests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-GradientLoadingBar_SnapshotTests/Pods-GradientLoadingBar_SnapshotTests.debug.xcconfig"; sourceTree = "<group>"; };
 		F76834BE9E43CA11377EC030 /* LICENSE */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text; name = LICENSE; path = ../LICENSE; sourceTree = "<group>"; };
 		FECB95A4857728345199461F /* Pods-GradientLoadingBar_Tests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-GradientLoadingBar_Tests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-GradientLoadingBar_Tests/Pods-GradientLoadingBar_Tests.debug.xcconfig"; sourceTree = "<group>"; };
@@ -196,9 +203,11 @@
 		649A163A23770B4400404F3C /* SnapshotTests */ = {
 			isa = PBXGroup;
 			children = (
-				649A163B23770B4400404F3C /* DefaultColorSnapshotTestCase.swift */,
-				649A164323770E9300404F3C /* CustomColorSnapshotTestCase.swift */,
+				DCE3AB102497619600889FFA /* _Helper */,
+				DC190F5E2496A2290069E2B0 /* GradientActivityIndicatorView */,
+				DC190F5F2496A2380069E2B0 /* GradientLoadingBarController */,
 				649A163D23770B4400404F3C /* Info.plist */,
+				DCE3AB172497670400889FFA /* README.md */,
 			);
 			path = SnapshotTests;
 			sourceTree = "<group>";
@@ -261,6 +270,32 @@
 			name = Frameworks;
 			sourceTree = "<group>";
 		};
+		DC190F5E2496A2290069E2B0 /* GradientActivityIndicatorView */ = {
+			isa = PBXGroup;
+			children = (
+				649A163B23770B4400404F3C /* DefaultColorSnapshotTestCase.swift */,
+				649A164323770E9300404F3C /* CustomColorSnapshotTestCase.swift */,
+			);
+			path = GradientActivityIndicatorView;
+			sourceTree = "<group>";
+		};
+		DC190F5F2496A2380069E2B0 /* GradientLoadingBarController */ = {
+			isa = PBXGroup;
+			children = (
+				DCE3AB14249764A000889FFA /* GradientLoadingBarControllerTestCase.swift */,
+				DC190F602496A24F0069E2B0 /* NotchGradientLoadingBarControllerTestCase.swift */,
+			);
+			path = GradientLoadingBarController;
+			sourceTree = "<group>";
+		};
+		DCE3AB102497619600889FFA /* _Helper */ = {
+			isa = PBXGroup;
+			children = (
+				DCE3AB11249761AB00889FFA /* Snapshotting+WindowedImage.swift */,
+			);
+			path = _Helper;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */

 /* Begin PBXNativeTarget section */
@@ -586,6 +621,9 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				DCE3AB13249761B300889FFA /* Snapshotting+WindowedImage.swift in Sources */,
+				DC190F622496A25A0069E2B0 /* NotchGradientLoadingBarControllerTestCase.swift in Sources */,
+				DCE3AB16249764BB00889FFA /* GradientLoadingBarControllerTestCase.swift in Sources */,
 				649A164423770E9300404F3C /* CustomColorSnapshotTestCase.swift in Sources */,
 				649A163C23770B4400404F3C /* DefaultColorSnapshotTestCase.swift in Sources */,
 			);
@@ -0,0 +1,49 @@
+//
+//  GradientLoadingBarControllerTestCase.swift
+//  GradientLoadingBar_SnapshotTests
+//
+//  Created by Felix Mau on 06/14/20.
+//  Copyright © 2020 CocoaPods. All rights reserved.
+//
+
+import XCTest
+import SnapshotTesting
+
+@testable import GradientLoadingBar
+
+class GradientLoadingBarControllerTestCase: XCTestCase {
+    // MARK: - Private properties
+
+    private var gradientLoadingBarController: GradientLoadingBarController!
+
+    // MARK: - Public methods
+
+    override func setUpWithError() throws {
+        try super.setUpWithError()
+
+        gradientLoadingBarController = GradientLoadingBarController()
+        gradientLoadingBarController.fadeIn(duration: 0)
+    }
+
+    override func tearDownWithError() throws {
+        gradientLoadingBarController = nil
+
+        try super.tearDownWithError()
+    }
+
+    // MARK: - Tests
+
+    func testGradientLoadingBarController() {
+        // Given
+        let rootViewController = UIViewController()
+
+        let expectation = self.expectation(description: "Waiting for view to appear.")
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
+            expectation.fulfill()
+        }
+
+        // Then
+        wait(for: [expectation], timeout: 1)
+        assertSnapshot(matching: rootViewController, as: .windowedImage)
+    }
+}
@@ -0,0 +1,51 @@
+//
+//  NotchGradientLoadingBarControllerTestCase.swift
+//  GradientLoadingBar_SnapshotTests
+//
+//  Created by Felix Mau on 06/14/20.
+//  Copyright © 2020 CocoaPods. All rights reserved.
+//
+
+import XCTest
+import SnapshotTesting
+
+@testable import GradientLoadingBar
+
+class NotchGradientLoadingBarControllerTestCase: XCTestCase {
+    // swiftlint:disable:previous type_name
+
+    // MARK: - Private properties
+
+    private var notchGradientLoadingBarController: NotchGradientLoadingBarController!
+
+    // MARK: - Public methods
+
+    override func setUpWithError() throws {
+        try super.setUpWithError()
+
+        notchGradientLoadingBarController = NotchGradientLoadingBarController()
+        notchGradientLoadingBarController.fadeIn(duration: 0)
+    }
+
+    override func tearDownWithError() throws {
+        notchGradientLoadingBarController = nil
+
+        try super.tearDownWithError()
+    }
+
+    // MARK: - Tests
+
+    func testNotchGradientLoadingBarController() {
+        // Given
+        let rootViewController = UIViewController()
+
+        let expectation = self.expectation(description: "Waiting for view to appear.")
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
+            expectation.fulfill()
+        }
+
+        // Then
+        wait(for: [expectation], timeout: 1)
+        assertSnapshot(matching: rootViewController, as: .windowedImage)
+    }
+}
@@ -0,0 +1,4 @@
+#  Snapshot-Tests
+
+## Device
+Run test-cases with the `iPhone X` using `iOS 13.5`.
@@ -0,0 +1,44 @@
+//
+//  Snapshotting+WindowedImage.swift
+//  GradientLoadingBar_SnapshotTests
+//
+//  Created by Felix Mau on 06/14/20.
+//  Copyright © 2020 CocoaPods. All rights reserved.
+//
+
+import SnapshotTesting
+
+// MARK: - Config
+
+private enum Config {
+    /// Allow for a 1% pixel difference.
+    static let precision: Float = 0.99
+}
+
+// MARK: - Public properties
+
+extension Snapshotting where Value: UIViewController, Format == UIImage {
+    /// Based on:
+    /// <https://github.com/pointfreeco/swift-snapshot-testing/issues/279> and <https://www.pointfree.co/episodes/ep86-swiftui-snapshot-testing#t657>
+    static var windowedImage: Snapshotting {
+        Snapshotting<UIImage, UIImage>.image(precision: Config.precision).asyncPullback { viewController in
+            Async<UIImage> { callback in
+                UIView.setAnimationsEnabled(false)
+
+                guard let keyWindow = UIApplication.shared.windows.first(where: { $0.isKeyWindow }) else {
+                    fatalError("⚠️ – Failed to get key window from application!")
+                }
+                keyWindow.rootViewController = viewController
+
+                DispatchQueue.main.async {
+                    let image = UIGraphicsImageRenderer(bounds: keyWindow.bounds).image { _ in
+                        keyWindow.drawHierarchy(in: keyWindow.bounds, afterScreenUpdates: true)
+                    }
+                    callback(image)
+
+                    UIView.setAnimationsEnabled(true)
+                }
+            }
+        }
+    }
+}
@@ -80,6 +80,10 @@ open class GradientLoadingBarController {
        bindViewModelToView()
    }

+    deinit {
+        gradientActivityIndicatorView.removeFromSuperview()
+    }
+
    // MARK: - Public methods

    /// Apply layout constraints for gradient loading view.