ChangedThrice / DismissedTwice test case in SheeKit

SheeTestCase.swift

final class SheeTestCase: ViewTestCase {
    
    ...
    
    func testItemChangedThriceDismissedTwice() {
        guard let viewTest = viewTest else {
            XCTFail("No view to test.")
            return
        }
        
        let bounds = UIScreen.main.bounds
        viewTest.sendTouchSequence([
            (location: CGPoint(x: bounds.maxX * 0.25, y: bounds.midY), globalLocation: nil, timestamp: Date())
        ])
        viewTest.turnRunloop(times: 20)
        guard let _ = presentedViewController else {
            XCTFail("No presented view to test.")
            return
        }
        viewTest.sendTouchSequence([
            (location: CGPoint(x: bounds.maxX * 0.75, y: bounds.midY), globalLocation: nil, timestamp: Date())
        ])
        viewTest.turnRunloop(times: 10)
        viewTest.sendTouchSequence([
            (location: CGPoint(x: bounds.maxX * 0.75, y: bounds.midY), globalLocation: nil, timestamp: Date())
        ])
        viewTest.turnRunloop(times: 10)
        XCTAssertEqual(dismissCounter, 2)
        XCTAssertNil(presentedViewController)
    }
}