Add topBar.backButton.testID option

lib/ios/RNNBackButtonOptions.h

@@ -7,6 +7,7 @@
 @property (nonatomic, strong) Text* fontFamily;
 @property (nonatomic, strong) Number* fontSize;
 @property (nonatomic, strong) Text* transition;
+@property (nonatomic, strong) Text* testID;
 @property (nonatomic, strong) Color* color;
 @property (nonatomic, strong) Bool* showTitle;
 @property (nonatomic, strong) Bool* visible;

lib/ios/RNNBackButtonOptions.m

@@ -11,6 +11,7 @@ - (instancetype)initWithDict:(NSDictionary *)dict {
     self.color = [ColorParser parse:dict key:@"color"];
     self.showTitle = [BoolParser parse:dict key:@"showTitle"];
     self.visible = [BoolParser parse:dict key:@"visible"];
+    self.testID = [TextParser parse:dict key:@"testID"];
     self.fontFamily = [TextParser parse:dict key:@"fontFamily"];
     self.fontSize = [NumberParser parse:dict key:@"fontSize"];
 

lib/ios/TopBarPresenter.m

@@ -16,7 +16,7 @@ - (void)applyOptions:(RNNTopBarOptions *)options {
     [self setTitleAttributes:options.title];
     [self setLargeTitleAttributes:options.largeTitle];
     [self showBorder:![options.noBorder getWithDefaultValue:NO]];
-    [self setBackButtonOptions:[options.backButton.icon getWithDefaultValue:nil] withColor:[options.backButton.color getWithDefaultValue:nil] title:[options.backButton.title getWithDefaultValue:nil] showTitle:[options.backButton.showTitle getWithDefaultValue:YES] fontFamily:[options.backButton.fontFamily getWithDefaultValue:nil] fontSize:[options.backButton.fontSize getWithDefaultValue:nil]];
+    [self setBackButtonOptions:options.backButton];
 }
 
 - (void)applyOptionsBeforePopping:(RNNTopBarOptions *)options {
@@ -48,7 +48,7 @@ - (void)mergeOptions:(RNNTopBarOptions *)options withDefault:(RNNTopBarOptions *
     }
 
     if (options.backButton.hasValue) {
-        [self setBackButtonOptions:[withDefault.backButton.icon getWithDefaultValue:nil] withColor:[withDefault.backButton.color getWithDefaultValue:nil] title:[withDefault.backButton.title getWithDefaultValue:nil] showTitle:[withDefault.backButton.showTitle getWithDefaultValue:YES] fontFamily:[withDefault.backButton.fontFamily getWithDefaultValue:nil] fontSize:[options.backButton.fontSize getWithDefaultValue:nil]];
+        [self setBackButtonOptions:withDefault.backButton];
     }
 }
 
@@ -111,8 +111,18 @@ - (void)setLargeTitleAttributes:(RNNLargeTitleOptions *)largeTitleOptions {
     }
 }
 
-- (void)setBackButtonOptions:(UIImage *)icon withColor:(UIColor *)color title:(NSString *)title showTitle:(BOOL)showTitle fontFamily:(NSString *)fontFamily fontSize:(NSNumber *)fontSize {
+- (void)setBackButtonOptions:(RNNBackButtonOptions *)backButtonOptions {
+    UIImage* icon = [backButtonOptions.icon getWithDefaultValue:nil];
+    UIColor* color = [backButtonOptions.color getWithDefaultValue:nil];
+    NSString* title = [backButtonOptions.title getWithDefaultValue:nil];
+    BOOL showTitle = [backButtonOptions.showTitle getWithDefaultValue:YES];
+    NSString* fontFamily = [backButtonOptions.fontFamily getWithDefaultValue:nil];
+    NSNumber* fontSize = [backButtonOptions.fontSize getWithDefaultValue:nil];
+    NSString* testID = [backButtonOptions.testID getWithDefaultValue:nil];
+
 	UIBarButtonItem *backItem = [[UIBarButtonItem alloc] init];
+    backItem.accessibilityIdentifier = testID;
+
     NSArray* stackChildren = self.navigationController.viewControllers;
     icon = color
     ? [[icon withTintColor:color] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]

lib/src/interfaces/Options.ts

@@ -272,6 +272,10 @@ export interface OptionsTopBarBackButton {
    * Set subtitle font family
    */
   fontFamily?: FontFamily;
+  /**
+   * Set testID for reference in E2E tests
+   */
+  testID?: string;
 }
 
 export interface OptionsTopBarBackground {

playground/ios/NavigationTests/TopBarAppearancePresenterTest.m

@@ -3,6 +3,7 @@
 #import <ReactNativeNavigation/TopBarAppearancePresenter.h>
 #import "UIViewController+RNNOptions.h"
 #import <ReactNativeNavigation/RNNStackController.h>
+#import <ReactNativeNavigation/RNNComponentViewController.h>
 
 @interface TopBarAppearancePresenterTest : XCTestCase
 
@@ -11,11 +12,13 @@ @interface TopBarAppearancePresenterTest : XCTestCase
 @implementation TopBarAppearancePresenterTest {
 	TopBarAppearancePresenter* _uut;
 	RNNStackController* _stack;
+	RNNComponentViewController* _componentViewController;
 }
 
 - (void)setUp {
     [super setUp];
-	_stack = [[RNNStackController alloc] initWithLayoutInfo:nil creator:nil options:[[RNNNavigationOptions alloc] initEmptyOptions] defaultOptions:[[RNNNavigationOptions alloc] initEmptyOptions] presenter:_uut eventEmitter:nil childViewControllers:@[]];
+	_componentViewController = [[RNNComponentViewController alloc] initWithLayoutInfo:nil rootViewCreator:nil eventEmitter:nil presenter:nil options:[[RNNNavigationOptions alloc] initEmptyOptions] defaultOptions:nil];
+	_stack = [[RNNStackController alloc] initWithLayoutInfo:nil creator:nil options:[[RNNNavigationOptions alloc] initEmptyOptions] defaultOptions:[[RNNNavigationOptions alloc] initEmptyOptions] presenter:_uut eventEmitter:nil childViewControllers:@[_componentViewController]];
 	_uut = [[TopBarAppearancePresenter alloc] initWithNavigationController:_stack];
 }
 
@@ -32,5 +35,14 @@ - (void)testMergeOptions_shouldMergeWithDefault {
 	XCTAssertEqual(font.pointSize, 21);
 }
 
+- (void)testApplyOptions_shouldSetBackButtonTestID {
+	RNNNavigationOptions* options = [[RNNNavigationOptions alloc] initEmptyOptions];
+	options.topBar.backButton.testID = [Text withValue:@"TestID"];
+
+	[_uut applyOptions:options.topBar];
+	XCTAssertTrue([_componentViewController.navigationItem.backBarButtonItem.accessibilityIdentifier isEqualToString:@"TestID"]);
+}
+
+
 
 @end