react-native-navigation/playground/ios/NavigationTests/RNNOverlayManagerTest.m

#import <XCTest/XCTest.h>
#import <OCMock/OCMock.h>
#import "RNNOverlayManager.h"

@interface RNNOverlayManagerTest : XCTestCase

@property (nonatomic, retain) RNNOverlayManager* overlayManager;
@property (nonatomic, retain) UIViewController* overlayVC;
@property (nonatomic, retain) RNNOverlayWindow* overlayWindow;

@end

@implementation RNNOverlayManagerTest

- (void)setUp {
    [super setUp];
	_overlayManager = [RNNOverlayManager new];
	_overlayVC = [UIViewController new];
	_overlayWindow = [OCMockObject partialMockForObject:[RNNOverlayWindow new]];
	OCMStub([_overlayWindow makeKeyAndVisible]);
	_overlayWindow.rootViewController = _overlayVC;
}


- (void)testShowOverlayShouldAddWindowWithVCAsRoot {
	[_overlayManager showOverlayWindow:_overlayWindow];
	UIWindow* window = _overlayManager.overlayWindows.lastObject;
	XCTAssertTrue([window.rootViewController isEqual:_overlayVC]);
}

- (void)testShowOverlayShouldSetKeyAndVisibleWindow {
	id window = _overlayManager.overlayWindows.lastObject;
	[[window expect] makeKeyAndVisible];
	[_overlayManager showOverlayWindow:_overlayWindow];
	[window verify];
}

- (void)testShowOverlayShouldCreateTransparentView {
	[_overlayManager showOverlayWindow:_overlayWindow];
	UIWindow* window = _overlayManager.overlayWindows.lastObject;
	XCTAssertTrue(window.rootViewController.view.backgroundColor == [UIColor clearColor]);
}

- (void)testDismissOverlayShouldCleanWindowRootVC {
	[_overlayManager showOverlayWindow:_overlayWindow];
	UIWindow* window = _overlayManager.overlayWindows.lastObject;
	[_overlayManager dismissOverlay:_overlayVC];
	XCTAssertNil(window.rootViewController);
}

- (void)testDismissOverlayShouldHideWindow {
	[_overlayManager showOverlayWindow:_overlayWindow];
	UIWindow* window = _overlayManager.overlayWindows.lastObject;
	[_overlayManager dismissOverlay:_overlayVC];
	XCTAssertTrue(window.hidden);
}

- (void)testDismissOverlayShouldRemoveOverlayWindow {
	[_overlayManager showOverlayWindow:_overlayWindow];
	UIWindow* window = _overlayManager.overlayWindows.lastObject;
	[_overlayManager dismissOverlay:_overlayVC];
	XCTAssertFalse([_overlayManager.overlayWindows containsObject:window]);
}

- (void)testDismissOverlayShouldNotRemoveWrongVC {
	[_overlayManager showOverlayWindow:_overlayWindow];
	UIWindow* window = _overlayManager.overlayWindows.lastObject;
	[_overlayManager dismissOverlay:[UIViewController new]];
	XCTAssertTrue([_overlayManager.overlayWindows containsObject:window]);
}

@end