     
     func testCancelAll() {
         let queue = Queuer(name: "QueuerTestCancellAll")
-        
         let testExpectation = expectation(description: "Cancell All Operations")
         var order: [Int] = []
         

    
    func testAddOperation() {
        let queue = Queuer(name: "QueuerTestAddOperation")
        
        let testExpectation = expectation(description: "Add Operation")
        
        let concurrentOperation = ConcurrentOperation {

    
    func testAddChainedOperations() {
        let queue = Queuer(name: "QueuerTestAddChainedOperations")
        let testExpectation = expectation(description: "Add Chained Operations")
        var order: [Int] = []
        
