marshroute

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import XCTest
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@testable import Marshroute
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final class SplitViewTransitionsHandlerImplTests: XCTestCase {
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    var transitionsCoordinatorSpy: TransitionsCoordinatorSpy!
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    var splitViewTransitionsHandler: SplitViewTransitionsHandlerImpl!
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    var splitViewController = UISplitViewController()
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    override func setUp() {
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        super.setUp()
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        transitionsCoordinatorSpy = TransitionsCoordinatorSpy()
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        splitViewTransitionsHandler = SplitViewTransitionsHandlerImpl(
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            splitViewController: splitViewController,
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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 testThatSplitViewTransitionsHandlerForwards_PerformTransition_CallsToItsTransitionsCoordinator() {
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        // Given
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        let presentationContext = TransitionContextsCreator.createPresentationTransitionContext()
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        // When
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        splitViewTransitionsHandler.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 === splitViewTransitionsHandler)
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        } else { XCTFail() }
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    }
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    func testThatSplitViewTransitionsHandlerForwards_UndoTransitionsAfter_CallsToItsTransitionsCoordinator() {
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        // Given
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        let generatedTansitionId = TransitionIdGeneratorImpl().generateNewTransitionId()
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        // When
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        splitViewTransitionsHandler.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 === splitViewTransitionsHandler)
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        } else { XCTFail() }
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    }
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    func testThatSplitViewTransitionsHandlerForwards_UndoTransitionWith_CallsToItsTransitionsCoordinator() {
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        // Given
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        let generatedTansitionId = TransitionIdGeneratorImpl().generateNewTransitionId()
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        // When
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        splitViewTransitionsHandler.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 === splitViewTransitionsHandler)
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        } else { XCTFail() }
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    }
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    func testThatSplitViewTransitionsHandlerDoesNotForward_UndoAllChainedTransitions_CallsToItsTransitionsCoordinator() {
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        // When
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        splitViewTransitionsHandler.undoAllChainedTransitions()
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        // Then
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        XCTAssertNil(transitionsCoordinatorSpy.coordinateUndoingAllChainedTransitions)
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    }
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    func testThatSplitViewTransitionsHandlerDoesNotForward_UndoAllTransitions_CallsToItsTransitionsCoordinator() {
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        // When
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        splitViewTransitionsHandler.undoAllTransitions()
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        // Then
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        XCTAssertNil(transitionsCoordinatorSpy.coordinateUndoingAllChainedTransitions)
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    }
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    func testThatSplitViewTransitionsHandlerDoesNotForward_ResetWithTransition_CallsToItsTransitionsCoordinator() {
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        // Given
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        let resettingContext = TransitionContextsCreator.createRegisteringEndpointNavigationControllerTransitionContext()
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        // When
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        splitViewTransitionsHandler.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 testThatSplitViewTransitionsHandlerReturnsAllTransitionsHandlersOn_AllTransitionsHandlers_Call() {
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        // Given
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        let masterTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let detailTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        splitViewTransitionsHandler.masterTransitionsHandler = masterTransitionsHandler
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        splitViewTransitionsHandler.detailTransitionsHandler = detailTransitionsHandler
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        // When
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        let allTransitionsHandlers = splitViewTransitionsHandler.allTransitionsHandlers!
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        // Then
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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 testThatSplitViewTransitionsHandlerReturnsAllTransitionsHandlersOn_VisibleTransitionsHandlers_Call() {
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        // Given
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        let masterTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        let detailTransitionsHandler = BaseAnimatingTransitionsHandler(transitionsCoordinator: transitionsCoordinatorSpy)
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        splitViewTransitionsHandler.masterTransitionsHandler = masterTransitionsHandler
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        splitViewTransitionsHandler.detailTransitionsHandler = detailTransitionsHandler
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        // When
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        let visibleTransitionsHandlers = splitViewTransitionsHandler.visibleTransitionsHandlers!
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        // Then
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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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