[Dialogs] Add example snapshot tests.

PiperOrigin-RevId: 309275412

components/Dialogs/examples/DialogsAccessoryExampleViewController.swift

@@ -275,3 +275,39 @@ extension DialogsAccessoryExampleViewController {
     ]
   }
 }
+
+// MARK: Snapshot Testing by Convention
+extension DialogsAccessoryExampleViewController {
+
+  func resetTests() {
+    if presentedViewController != nil {
+      dismiss(animated: false)
+    }
+  }
+
+  @objc func testTextView() {
+    resetTests()
+    self.present(performTextView(), animated: false, completion: nil)
+  }
+
+  @objc func testTextField() {
+    resetTests()
+    self.present(performTextField(), animated: false, completion: nil)
+  }
+
+  @objc func testMDCTextField() {
+    resetTests()
+    self.present(performMDCTextField(), animated: false, completion: nil)
+  }
+
+  @objc func testCustomLabelWithButton() {
+    resetTests()
+    self.present(performCustomLabelWithButton(), animated: false, completion: nil)
+  }
+
+  @objc func testDefaultLabelWithButton() {
+    resetTests()
+    self.present(performDefaultLabelWithButton(), animated: false, completion: nil)
+  }
+
+}

components/Dialogs/examples/DialogsAlertComparisonExample.swift

@@ -201,3 +201,28 @@ extension DialogsAlertComparisonExample {
     ]
   }
 }
+
+// MARK: Snapshot Testing by Convention
+extension DialogsAlertComparisonExample {
+
+  func resetTests() {
+    if presentedViewController != nil {
+      dismiss(animated: false)
+    }
+  }
+
+  @objc func testMaterial() {
+    resetTests()
+    tapMaterial(UIButton())
+  }
+
+  @objc func testThemed() {
+    resetTests()
+    tapThemed(UIButton())
+  }
+
+  @objc func testUIKit() {
+    resetTests()
+    tapUIKit(UIButton())
+  }
+}

components/Dialogs/examples/DialogsAlertCustomizationExampleViewController.swift

@@ -345,3 +345,79 @@ extension DialogsAlertCustomizationExampleViewController {
     ]
   }
 }
+
+// MARK: Snapshot Testing by Convention
+extension DialogsAlertCustomizationExampleViewController {
+
+  func resetTests() {
+    if presentedViewController != nil {
+      dismiss(animated: false)
+    }
+  }
+
+  @objc func testCenteredTitle() {
+    resetTests()
+    present(performCenteredTitle(), animated: false, completion: nil)
+  }
+
+  @objc func testCenteredTitleWithIcon() {
+    resetTests()
+    present(performCenteredTitleWithIcon(), animated: false, completion: nil)
+  }
+
+  @objc func testNaturalTitleWithIcon() {
+    resetTests()
+    present(performNaturalTitleWithIcon(), animated: false, completion: nil)
+  }
+
+  @objc func testRightTitleWithResizedIcon() {
+    resetTests()
+    present(performRightTitleWithResizedIcon(), animated: false, completion: nil)
+  }
+
+  @objc func testTintedTitleIconNoTitle() {
+    resetTests()
+    present(performTintedTitleIconNoTitle(), animated: false, completion: nil)
+  }
+
+  @objc func testScrimColor() {
+    resetTests()
+    present(performScrimColor(), animated: false, completion: nil)
+  }
+
+  @objc func testLowElevationAlert() {
+    resetTests()
+    present(performLowElevationAlert(), animated: false, completion: nil)
+  }
+
+  @objc func testEmphasisButtonTheming() {
+    resetTests()
+    present(performEmphasisButtonTheming(), animated: false, completion: nil)
+  }
+
+  @objc func testDeprecatedTextButtonTheming() {
+    resetTests()
+    present(performDeprecatedTextButtonTheming(), animated: false, completion: nil)
+  }
+
+  @objc func testTextButtonThemingTheRightWay() {
+    resetTests()
+    present(performTextButtonThemingTheRightWay(), animated: false, completion: nil)
+  }
+
+  @objc func testCustomButtonTheming() {
+    resetTests()
+    present(performCustomButtonTheming(), animated: false, completion: nil)
+  }
+
+  @objc func testDarkTheming() {
+    resetTests()
+    present(performDarkTheming(), animated: false, completion: nil)
+  }
+
+  @objc func testNoTheming() {
+    resetTests()
+    present(performNoTheming(), animated: false, completion: nil)
+  }
+
+}

components/Dialogs/examples/DialogsAlertExampleViewController.m

@@ -307,3 +307,23 @@ + (NSDictionary *)catalogMetadata {
 }
 
 @end
+
+@implementation DialogsAlertExampleViewController (SnapshotTestingByConvention)
+
+- (NSDictionary<NSString *, void (^)(void)> *)testRunners {
+  NSMutableDictionary<NSString *, void (^)(void)> *runners = [NSMutableDictionary dictionary];
+  NSInteger index = 0;
+  for (NSString *mode in self.modes) {
+    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:index inSection:0];
+    runners[mode] = ^{
+      if (self.presentedViewController) {
+        [self dismissViewControllerAnimated:NO completion:nil];
+      }
+      [self collectionView:self.collectionView didSelectItemAtIndexPath:indexPath];
+    };
+    index++;
+  }
+  return runners;
+}
+
+@end

components/Dialogs/examples/DialogsCustomShadowExampleViewController.swift

@@ -131,3 +131,18 @@ class DialogsCustomShadowExampleViewController: UIViewController {
     ]
   }
 }
+
+// MARK: Snapshot Testing by Convention
+extension DialogsCustomShadowExampleViewController {
+
+  func resetTests() {
+    if presentedViewController != nil {
+      dismiss(animated: false)
+    }
+  }
+
+  @objc func testPresented() {
+    resetTests()
+    tap(UIButton())
+  }
+}

components/Dialogs/examples/DialogsDismissingExampleViewController.m

@@ -301,3 +301,23 @@ - (BOOL)accessibilityPerformEscape {
 }
 
 @end
+
+@implementation DialogsDismissingExampleViewController (SnapshotTestingByConvention)
+
+- (NSDictionary<NSString *, void (^)(void)> *)testRunners {
+  NSMutableDictionary<NSString *, void (^)(void)> *runners = [NSMutableDictionary dictionary];
+  NSInteger index = 0;
+  for (NSString *mode in self.modes) {
+    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:index inSection:0];
+    runners[mode] = ^{
+      if (self.presentedViewController) {
+        [self dismissViewControllerAnimated:NO completion:nil];
+      }
+      [self collectionView:self.collectionView didSelectItemAtIndexPath:indexPath];
+    };
+    index++;
+  }
+  return runners;
+}
+
+@end

components/Dialogs/examples/DialogsKeyboardExampleViewController.m

@@ -50,3 +50,15 @@ - (void)collectionView:(UICollectionView *)collectionView
 }
 
 @end
+
+@implementation DialogsKeyboardExampleViewController (SnapshotTestingByConvention)
+
+- (void)testPresented {
+  if (self.presentedViewController) {
+    [self dismissViewControllerAnimated:NO completion:nil];
+  }
+  NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
+  [self collectionView:self.collectionView didSelectItemAtIndexPath:indexPath];
+}
+
+@end

components/Dialogs/examples/DialogsLongAlertExampleViewController.swift

@@ -90,3 +90,18 @@ extension DialogsLongAlertExampleViewController {
     ]
   }
 }
+
+// MARK: Snapshot Testing by Convention
+extension DialogsLongAlertExampleViewController {
+
+  func resetTests() {
+    if presentedViewController != nil {
+      dismiss(animated: false)
+    }
+  }
+
+  @objc func testPresented() {
+    resetTests()
+    tap(UIButton())
+  }
+}

components/Dialogs/examples/DialogsRoundedCornerExampleViewController.m

@@ -208,3 +208,21 @@ + (NSDictionary *)catalogMetadata {
 }
 
 @end
+
+@implementation DialogsRoundedCornerExampleViewController (SnapshotTestingByConvention)
+
+- (void)testDefault {
+  if (self.presentedViewController) {
+    [self dismissViewControllerAnimated:NO completion:nil];
+  }
+  [self didTapPresentDefault:nil];
+}
+
+- (void)testThemed {
+  if (self.presentedViewController) {
+    [self dismissViewControllerAnimated:NO completion:nil];
+  }
+  [self didTapPresentThemed:nil];
+}
+
+@end

components/Dialogs/examples/DialogsTallTextAlertExampleViewController.m

@@ -113,3 +113,14 @@ + (NSDictionary *)catalogMetadata {
 }
 
 @end
+
+@implementation DialogsTallTextAlertExampleViewController (SnapshotTestingByConvention)
+
+- (void)testPresented {
+  if (self.presentedViewController) {
+    [self dismissViewControllerAnimated:NO completion:nil];
+  }
+  [self didTapPresent:nil];
+}
+
+@end

components/Dialogs/examples/DialogsThemedPresentationExampleViewController.swift

@@ -228,3 +228,17 @@ extension DialogsThemedPresentationExampleViewController {
   }
 }
 
+// MARK: Snapshot Testing by Convention
+extension DialogsThemedPresentationExampleViewController {
+
+  func resetTests() {
+    if presentedViewController != nil {
+      dismiss(animated: false)
+    }
+  }
+
+  @objc func testPresented() {
+    resetTests()
+    tap(UIButton())
+  }
+}

components/Dialogs/examples/DialogsTypicalUseExampleViewController.m

@@ -122,3 +122,14 @@ + (NSDictionary *)catalogMetadata {
 }
 
 @end
+
+@implementation DialogsTypicalUseExampleViewController (SnapshotTestingByConvention)
+
+- (void)testPresented {
+  if (self.presentedViewController) {
+    [self dismissViewControllerAnimated:NO completion:nil];
+  }
+  [self showAlert:nil];
+}
+
+@end

components/Dialogs/examples/DialogsWithEmphasisButtonExampleViewController.swift

@@ -83,3 +83,18 @@ extension DialogsWithEmphasisButtonExampleViewController {
   }
 }
 
+
+// MARK: Snapshot Testing by Convention
+extension DialogsWithEmphasisButtonExampleViewController {
+
+  func resetTests() {
+    if presentedViewController != nil {
+      dismiss(animated: false)
+    }
+  }
+
+  @objc func testPresented() {
+    resetTests()
+    tapMaterial(UIButton())
+  }
+}