Added ScreenshotTestHelpers

Kickstarter-iOS/Features/LoginTout/Controller/LoginToutViewControllerTests.swift

@@ -5,43 +5,11 @@ import XCTest
 
 internal final class LoginToutViewControllerTests: TestCase {
   func testLoginToutView() {
-    let devices = [Device.phone4_7inch, Device.phone5_8inch, Device.pad]
     let intents = [LoginIntent.generic, .starProject, .messageCreator, .backProject]
 
-    orthogonalCombos(Language.allLanguages, devices, intents).forEach { language, device, intent in
-      withEnvironment(language: language) {
-        let controller = LoginToutViewController.configuredWith(loginIntent: intent)
-        let (parent, _) = traitControllers(device: device, orientation: .portrait, child: controller)
-
-        self.scheduler.run()
-
-        assertSnapshot(
-          matching: parent.view,
-          as: .image,
-          named: "intent_\(intent)_lang_\(language)_device_\(device)"
-        )
-      }
-    }
-  }
-
-  func testDarkMode() {
-    let language = Language.en
-    let device = Device.phone5_8inch
-    let intent = LoginIntent.generic
-
-    withEnvironment(language: language) {
+    forEachScreenshotType(withData: intents) { type, intent in
       let controller = LoginToutViewController.configuredWith(loginIntent: intent)
-      let (parent, _) = traitControllers(device: device, orientation: .portrait, child: controller)
-
-      controller.overrideUserInterfaceStyle = .dark
-
-      self.scheduler.run()
-
-      assertSnapshot(
-        matching: parent.view,
-        as: .image,
-        named: "intent_\(intent)_lang_\(language)_device_\(device)_dark"
-      )
+      assertSnapshot(forController: controller, withType: type)
     }
   }
 

Kickstarter-iOS/TestHelpers/Combos.swift

@@ -51,3 +51,52 @@ internal func orthogonalCombos<A, B, C>(_ xs: [A], _ ys: [B], _ zs: [C]) -> [(A,
     }
   }
 }
+
+// Combine four arrays by creating an array where each element is represented at least once.
+// Result consists of `max(A.count, B.count, C.count, D.count)` tuples.
+// swiftlint:disable large_tuple
+internal func orthogonalCombos<A, B, C, D>(
+  _ xs: [A],
+  _ ys: [B],
+  _ zs: [C],
+  _ ws: [D]
+) -> [(A, B, C, D)] {
+  let count = max(xs.count, ys.count, zs.count, ws.count)
+
+  guard count > 0 else { return [] }
+
+  return (0..<count).map { index in
+    (
+      xs[index % xs.count],
+      ys[index % ys.count],
+      zs[index % zs.count],
+      ws[index % ws.count]
+    )
+  }
+}
+
+// Combine five arrays by creating an array where each element is represented at least once.
+// Result consists of `max(A.count, B.count, C.count, D.count, E.count)` tuples.
+internal func orthogonalCombos<A, B, C, D, E>(
+  _ xs: [A],
+  _ ys: [B],
+  _ zs: [C],
+  _ ws: [D],
+  _ vs: [E]
+) -> [(A, B, C, D, E)] {
+  let count = max(xs.count, ys.count, zs.count, ws.count, vs.count)
+
+  guard count > 0 else { return [] }
+
+  return (0..<count).map { index in
+    (
+      xs[index % xs.count],
+      ys[index % ys.count],
+      zs[index % zs.count],
+      ws[index % ws.count],
+      vs[index % vs.count]
+    )
+  }
+}
+
+// swiftlint:enable large_tuple