marshroute

TabBarTransitionsHandlerImplTests.swift
200 строк · 9.3 Кб
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import XCTest
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@testable import Marshroute
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final class TabBarTransitionsHandlerImplTests: XCTestCase {
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    var transitionsCoordinatorSpy: TransitionsCoordinatorSpy!
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    var tabBarTransitionsHandler: TabBarTransitionsHandlerImpl!
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    var tabBarController = UITabBarController()
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    override func setUp() {
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        super.setUp()
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        transitionsCoordinatorSpy = TransitionsCoordinatorSpy()
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        tabBarTransitionsHandler = TabBarTransitionsHandlerImpl(
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            tabBarController: tabBarController,
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            transitionsCoordinator: transitionsCoordinatorSpy
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        )
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    }
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    // MARK: - TransitionsHandler
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    func testThatTabBarTransitionsHandlerForwards_PerformTransition_CallsToItsTransitionsCoordinator() {
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        // Given
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        let presentationContext = TransitionContextsCreator.createPresentationTransitionContext()
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        // When
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        tabBarTransitionsHandler.performTransition(context: presentationContext)
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        // Then
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        if case .forContaining(let context, let transitionsHandler) = transitionsCoordinatorSpy.coordinatePerformingTransition! {
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            XCTAssert(context == presentationContext)
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            XCTAssert(transitionsHandler === tabBarTransitionsHandler)
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        } else { XCTFail() }
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    }
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    func testThatTabBarTransitionsHandlerForwards_UndoTransitionsAfter_CallsToItsTransitionsCoordinator() {
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        // Given
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        let generatedTansitionId = TransitionIdGeneratorImpl().generateNewTransitionId()
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        // When
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        tabBarTransitionsHandler.undoTransitionsAfter(transitionId: generatedTansitionId)
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        // Then
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        if case .forContaining(let transitionId, let transitionsHandler) = transitionsCoordinatorSpy.coordinateUndoingTransitionsAfter! {
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            XCTAssert(transitionId == generatedTansitionId)
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            XCTAssert(transitionsHandler === tabBarTransitionsHandler)
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        } else { XCTFail() }
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    }
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    func testThatTabBarTransitionsHandlerForwards_UndoTransitionWith_CallsToItsTransitionsCoordinator() {
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        // Given
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        let generatedTansitionId = TransitionIdGeneratorImpl().generateNewTransitionId()
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        // When
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        tabBarTransitionsHandler.undoTransitionWith(transitionId: generatedTansitionId)
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        // Then
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        if case .forContaining(let transitionId, let transitionsHandler) = transitionsCoordinatorSpy.coordinateUndoingTransitionWith! {
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            XCTAssert(transitionId == generatedTansitionId)
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            XCTAssert(transitionsHandler === tabBarTransitionsHandler)
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        } else { XCTFail() }
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    }
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    func testThatTabBarTransitionsHandlerDoesNotForward_UndoAllChainedTransitions_CallsToItsTransitionsCoordinator() {
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        // When
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        tabBarTransitionsHandler.undoAllChainedTransitions()
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        // Then
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        XCTAssertNil(transitionsCoordinatorSpy.coordinateUndoingAllChainedTransitions)
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    }
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    func testThatTabBarTransitionsHandlerDoesNotForward_UndoAllTransitions_CallsToItsTransitionsCoordinator() {
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        // When
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        tabBarTransitionsHandler.undoAllTransitions()
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        // Then
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        XCTAssertNil(transitionsCoordinatorSpy.coordinateUndoingAllChainedTransitions)
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    }
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    func testThatTabBarTransitionsHandlerDoesNotForward_ResetWithTransition_CallsToItsTransitionsCoordinator() {
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        // Given
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        let resettingContext = TransitionContextsCreator.createRegisteringEndpointNavigationControllerTransitionContext()
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        // When
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        tabBarTransitionsHandler.resetWithTransition(context: resettingContext)
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        // Then
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        XCTAssertNil(transitionsCoordinatorSpy.coordinateResettingWithTransition)
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    }
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    // MARK: - TransitionsHandlerContainer
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    func testThatTabBarTransitionsHandlerReturnsAllTransitionsHandlersOn_AllTransitionsHandlers_Call_IfAllAreAnimating() {
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        // Given
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        let animatingTransitionsHandler1 = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let animatingTransitionsHandler2 = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        tabBarController.viewControllers = [UIViewController(), UIViewController()]
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        tabBarTransitionsHandler.animatingTransitionsHandlers = [
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            0: animatingTransitionsHandler1,
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            1: animatingTransitionsHandler2
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        ]
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        // When
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        let allTransitionsHandlers = tabBarTransitionsHandler.allTransitionsHandlers!
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        // Then
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        XCTAssertNotNil(allTransitionsHandlers.firstIndex { $0 === animatingTransitionsHandler1 })
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        XCTAssertNotNil(allTransitionsHandlers.firstIndex { $0 === animatingTransitionsHandler2 })
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    }
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    func testThatTabBarTransitionsHandlerUnboxesContainingTransitionsHandlersAndReturnsAllTransitionsHandlersOn_AllTransitionsHandlers_Call() {
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        // Given
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        let animatingTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let masterTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let detailTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let splitViewController = UISplitViewController()
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        let splitViewTransitionsHandler = SplitViewTransitionsHandlerImpl(
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            splitViewController: splitViewController,
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            transitionsCoordinator: transitionsCoordinatorSpy
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        )
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        splitViewTransitionsHandler.masterTransitionsHandler = masterTransitionsHandler
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        splitViewTransitionsHandler.detailTransitionsHandler = detailTransitionsHandler
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        tabBarController.viewControllers = [splitViewController, UIViewController()]
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        tabBarTransitionsHandler.containingTransitionsHandlers = [
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            0: splitViewTransitionsHandler
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        ]
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        tabBarTransitionsHandler.animatingTransitionsHandlers = [
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            1: animatingTransitionsHandler
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        ]
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        // When
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        let allTransitionsHandlers = tabBarTransitionsHandler.allTransitionsHandlers!
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        // Then
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        XCTAssertNotNil(allTransitionsHandlers.firstIndex { $0 === animatingTransitionsHandler })
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        XCTAssertNotNil(allTransitionsHandlers.firstIndex { $0 === masterTransitionsHandler })
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        XCTAssertNotNil(allTransitionsHandlers.firstIndex { $0 === detailTransitionsHandler })
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    }
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    func testThatTabBarTransitionsHandlerReturnsVisibleTransitionsHandlerOn_VisibleTransitionsHandlers_Call_IfVisibleIsAnimating() {
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        // Given
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        let animatingTransitionsHandler1 = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let animatingTransitionsHandler2 = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        tabBarController.viewControllers = [UIViewController(), UIViewController()]
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        tabBarTransitionsHandler.animatingTransitionsHandlers = [
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            0: animatingTransitionsHandler1,
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            1: animatingTransitionsHandler2
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        ]
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        // When
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        tabBarController.selectedViewController = tabBarController.viewControllers?[1]
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        let visibleTransitionsHandlers = tabBarTransitionsHandler.visibleTransitionsHandlers!
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        // Then
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        XCTAssertNil(visibleTransitionsHandlers.firstIndex { $0 === animatingTransitionsHandler1 })
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        XCTAssertNotNil(visibleTransitionsHandlers.firstIndex { $0 === animatingTransitionsHandler2 })
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    }
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    func testThatTabBarTransitionsHandlerUnboxesContainingTransitionsHandlerAndReturnsAllItsTransitionsHandlerOn_VisibleTransitionsHandlers_Call_IfVisibleIsContaining() {
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        // Given
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        let animatingTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let masterTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let detailTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let splitViewController = UISplitViewController()
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        let splitViewTransitionsHandler = SplitViewTransitionsHandlerImpl(
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            splitViewController: splitViewController,
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            transitionsCoordinator: transitionsCoordinatorSpy
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        )
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        splitViewTransitionsHandler.masterTransitionsHandler = masterTransitionsHandler
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        splitViewTransitionsHandler.detailTransitionsHandler = detailTransitionsHandler
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        tabBarController.viewControllers = [UIViewController(), splitViewController]
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        tabBarTransitionsHandler.animatingTransitionsHandlers = [
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            0: animatingTransitionsHandler
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        ]
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        tabBarTransitionsHandler.containingTransitionsHandlers = [
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            1: splitViewTransitionsHandler
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        ]
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        // When
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        // select a tab with a ContainingTransitionsHandler
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        tabBarController.selectedViewController = tabBarController.viewControllers?[1]
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        let visibleTransitionsHandlers = tabBarTransitionsHandler.visibleTransitionsHandlers!
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        // Then
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        XCTAssertNil(visibleTransitionsHandlers.firstIndex { $0 === animatingTransitionsHandler })
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        XCTAssertNotNil(visibleTransitionsHandlers.firstIndex { $0 === masterTransitionsHandler })
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        XCTAssertNotNil(visibleTransitionsHandlers.firstIndex { $0 === detailTransitionsHandler })
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    }
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}
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