public static async Task CancelANonCancellableTaskAsync(this AsyncMockService asyncMock)
{
Console.WriteLine(nameof(CancelANonCancellableTaskAsync));
using var cancellationTokenSource = new CancellationTokenSource();
// Listening to key press to cancel
var keyBoardTask = Task.Run(() =>
{
Console.WriteLine("Press enter to cancel");
Console.ReadKey();
// Sending the cancellation message
cancellationTokenSource.Cancel();
});
try
{
// Running the long running task
var longRunningTask = asyncMock.LongRunningOperationWithCancellationTokenAsync(100,
cancellationTokenSource.Token).ConfigureAwait(false);
var result = await longRunningTask;
Console.WriteLine("Result {0}", result);
Console.WriteLine("Press enter to continue");
}
catch (TaskCanceledException)
{
Console.WriteLine("Task was cancelled");
}
await keyBoardTask;
}
public async Task LongRunningOperationWithCancellationTokenAsync_StateUnderTest_ExpectedBehavior()
{
// Arrange
var asyncMock = new AsyncMockService();
int loop = 10;
CancellationToken cancellationToken = default(global::System.Threading.CancellationToken);
// Act
var result = await asyncMock.LongRunningOperationWithCancellationTokenAsync(
loop,
cancellationToken);
// Assert
Assert.IsNotNull(result);
Assert.AreEqual(result, 45);
}