         }
         
         // pause & resume
-        Async.main(after: 0.1) {
+        Async.main(after: 0.01) {
             
             groupedTask.pause()
             XCTAssertEqual(groupedTask.state, TaskState.Paused)

        }
        
        // cancel before fulfilled
        Async.main(after: 0.1) {
            groupedTask.cancel(error: "Cancel")
            return
        }

        }
        
        // cancel before fulfilled
        Async.main(after: 0.01) {
            groupedTask.cancel(error: "Cancel")
            return
        }
