Added unit test coverage for RNNNavigationController

lib/ios/RNNNavigationController.m

 
 - (void)setViewControllers:(NSArray<__kindof UIViewController *> *)viewControllers {
 	[super setViewControllers:viewControllers];
-	for (UIViewController<RNNRootViewProtocol>* viewController in viewControllers) {
-		if (viewController.layoutInfo.options) {
-			[viewController.layoutInfo.options mergeOptions:self.layoutInfo.options overrideOptions:NO];
-		}
-	}
+    for (UIViewController<RNNRootViewProtocol>* viewController in viewControllers) {
+        if ([viewController respondsToSelector:@selector(layoutInfo)]) {
+            [viewController.layoutInfo.options mergeOptions:self.layoutInfo.options overrideOptions:NO];
+        }
+    }
 }
 
 - (void)pushViewController:(UIViewController<RNNRootViewProtocol> *)viewController animated:(BOOL)animated {
 	[super pushViewController:viewController animated:animated];
-	if (viewController.layoutInfo.options) {
+    if ([viewController respondsToSelector:@selector(layoutInfo)]) {
 		[viewController.layoutInfo.options mergeOptions:self.layoutInfo.options overrideOptions:NO];
 	}
 }

lib/ios/RNNOptions.m

 
 @implementation RNNOptions
 
--(instancetype)	initWithDict:(NSDictionary *)dict {
+- (instancetype)initWithDict:(NSDictionary *)dict {
 	self = [super init];
 	[self initializeOptionsPropertiesWithDict:dict];
 	

lib/ios/ReactNativeNavigation.xcodeproj/project.pbxproj

 		50570B272061473D006A1B5C /* RNNTitleOptions.m in Sources */ = {isa = PBXBuildFile; fileRef = 50570B252061473D006A1B5C /* RNNTitleOptions.m */; };
 		50570BEA2063E09B006A1B5C /* RNNTitleViewHelper.h in Headers */ = {isa = PBXBuildFile; fileRef = 50570BE82063E09B006A1B5C /* RNNTitleViewHelper.h */; };
 		50570BEB2063E09B006A1B5C /* RNNTitleViewHelper.m in Sources */ = {isa = PBXBuildFile; fileRef = 50570BE92063E09B006A1B5C /* RNNTitleViewHelper.m */; };
+		505EDD32214E4BE80071C7DE /* RNNNavigationControllerTest.m in Sources */ = {isa = PBXBuildFile; fileRef = 505EDD31214E4BE80071C7DE /* RNNNavigationControllerTest.m */; };
 		5064495D20DC62B90026709C /* RNNSideMenuSideOptions.h in Headers */ = {isa = PBXBuildFile; fileRef = 5064495B20DC62B90026709C /* RNNSideMenuSideOptions.h */; };
 		5064495E20DC62B90026709C /* RNNSideMenuSideOptions.m in Sources */ = {isa = PBXBuildFile; fileRef = 5064495C20DC62B90026709C /* RNNSideMenuSideOptions.m */; };
 		50644A2020E11A720026709C /* Constants.h in Headers */ = {isa = PBXBuildFile; fileRef = 50644A1E20E11A720026709C /* Constants.h */; };
 		50570B252061473D006A1B5C /* RNNTitleOptions.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = RNNTitleOptions.m; sourceTree = "<group>"; };
 		50570BE82063E09B006A1B5C /* RNNTitleViewHelper.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = RNNTitleViewHelper.h; sourceTree = "<group>"; };
 		50570BE92063E09B006A1B5C /* RNNTitleViewHelper.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = RNNTitleViewHelper.m; sourceTree = "<group>"; };
+		505EDD31214E4BE80071C7DE /* RNNNavigationControllerTest.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = RNNNavigationControllerTest.m; sourceTree = "<group>"; };
 		5064495B20DC62B90026709C /* RNNSideMenuSideOptions.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = RNNSideMenuSideOptions.h; sourceTree = "<group>"; };
 		5064495C20DC62B90026709C /* RNNSideMenuSideOptions.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = RNNSideMenuSideOptions.m; sourceTree = "<group>"; };
 		50644A1E20E11A720026709C /* Constants.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = Constants.h; sourceTree = "<group>"; };
 				7B49FEC91E95098500DEB3EA /* RNNCommandsHandlerTest.m */,
 				7B49FECA1E95098500DEB3EA /* RNNNavigationStackManagerTest.m */,
 				504753772109C13C00FFFBE6 /* RNNOverlayManagerTest.m */,
+				505EDD31214E4BE80071C7DE /* RNNNavigationControllerTest.m */,
 				7B49FEBF1E95090800DEB3EA /* Info.plist */,
 				E83BAD671F2734B500A9F3DD /* RNNNavigationOptionsTest.m */,
 				E83BAD781F27416B00A9F3DD /* RNNRootViewControllerTest.m */,
 				504753782109C13C00FFFBE6 /* RNNOverlayManagerTest.m in Sources */,
 				7B49FECE1E95098500DEB3EA /* RNNCommandsHandlerTest.m in Sources */,
 				E83BAD681F2734B500A9F3DD /* RNNNavigationOptionsTest.m in Sources */,
+				505EDD32214E4BE80071C7DE /* RNNNavigationControllerTest.m in Sources */,
 				7B49FECF1E95098500DEB3EA /* RNNNavigationStackManagerTest.m in Sources */,
 				7B49FECB1E95098500DEB3EA /* RNNControllerFactoryTest.m in Sources */,
 				7B49FECD1E95098500DEB3EA /* RNNModalManagerTest.m in Sources */,

lib/ios/ReactNativeNavigationTests/RNNNavigationControllerTest.m

+#import <XCTest/XCTest.h>
+#import "RNNNavigationController.h"
+
+@interface RNNNavigationControllerTest : XCTestCase
+
+@property (nonatomic, strong) RNNNavigationController *uut;
+
+@end
+
+@implementation RNNNavigationControllerTest {
+	RNNRootViewController* _vc1;
+	RNNRootViewController* _vc2;
+	UIViewController* _vc3;
+}
+
+- (void)setUp {
+    [super setUp];
+	
+	self.uut = [[RNNNavigationController alloc] initWithLayoutInfo:[self createLayoutInfo]];
+	_vc1 = [[RNNRootViewController alloc] init];
+	_vc1.layoutInfo = [self createLayoutInfo];
+	_vc2 = [[RNNRootViewController alloc] init];
+	_vc2.layoutInfo = [self createLayoutInfo];
+	_vc3 = [UIViewController new];
+}
+
+- (void)testSetViewControllers_shouldPropogateOptionsToViewController {
+	self.uut.layoutInfo.options.topBar.visible = @(1);
+	[self.uut setViewControllers:@[_vc1]];
+	XCTAssertTrue(_vc1.layoutInfo.options.topBar.visible.boolValue == self.uut.layoutInfo.options.topBar.visible.boolValue);
+}
+
+- (void)testSetViewControllers_externalViewControllerShouldNotCrash {
+	NSArray* viewControllers = @[_vc1, _vc3];
+	XCTAssertNoThrow([self.uut setViewControllers:viewControllers]);
+}
+
+- (void)testPushViewController_shouldPropogateOptionsToViewController {
+	self.uut.layoutInfo.options.topBar.visible = @(1);
+	[self.uut pushViewController:_vc2 animated:NO];
+	XCTAssertTrue(_vc2.layoutInfo.options.topBar.visible.boolValue == self.uut.layoutInfo.options.topBar.visible.boolValue);
+}
+
+- (void)testPushViewController_externalViewControllerShouldNotCrash {
+	XCTAssertNoThrow([self.uut pushViewController:_vc3 animated:NO]);
+}
+
+- (void)testChildViewControllerForStatusBarStyle_shouldReturnTopViewController {
+	XCTAssertTrue(self.uut.childViewControllerForStatusBarStyle == self.uut.topViewController);
+}
+
+- (void)testGetLeafViewController_shouldReturnTopViewController {
+	XCTAssertTrue(self.uut.getLeafViewController == self.uut.topViewController);
+}
+
+- (void)testPreferredStatusBarStyle_shouldReturnLeafPreferredStatusBarStyle {
+	[self.uut setViewControllers:@[_vc1]];
+	self.uut.getLeafViewController.layoutInfo.options.statusBar.style = @"dark";
+	XCTAssertTrue(self.uut.preferredStatusBarStyle == self.uut.getLeafViewController.preferredStatusBarStyle);
+}
+
+- (RNNLayoutInfo *)createLayoutInfo {
+	RNNLayoutInfo *layoutInfo = [RNNLayoutInfo new];
+	layoutInfo.options = [[RNNNavigationOptions alloc] initWithDict:@{}];
+	return layoutInfo;
+}
+
+@end