DeinitTracking

DeinitTracking.swift

    
class DeinitTracker {}

class Test {
    init() {}
    
    #if DEBUG
    lazy var deinitTracker: DeinitTracker? = DeinitTracker()
    #endif
}


final class MyTests: XCTestCase {

    func testDeinitTracking() throws {
        var object: Test? = Test()
        var reference: Test? = object
        
        weak var tracker = object?.deinitTracker
       
        object = nil
        
        XCTAssertNil(object)
        XCTAssertNotNil(reference)
        XCTAssertNotNil(tracker)
        
        reference = nil
        
        XCTAssertNil(object)
        XCTAssertNil(reference)
        XCTAssertNil(tracker)
    }
    
}