public async void When_several_threads_are_ending_session_at_the_same_time()
{
//Arrange
var sessionEndCompletedEventCount = 0;
var sessionEndStartedEventCount = 0;
var sessionKey = Guid.NewGuid().ToString();
var webApiClientMock = new Mock<IWebApiClient>(MockBehavior.Strict);
webApiClientMock.Setup(x => x.CreateAsync<SessionRequest, SessionResponse>(It.IsAny<string>(), It.IsAny<SessionRequest>())).Returns(Task.FromResult(new SessionResponse { SessionKey = sessionKey }));
webApiClientMock.Setup(x => x.ExecuteCommandAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<Guid>())).Returns(Task.FromResult<object>(null)).Callback(() => { System.Threading.Thread.Sleep(500); });
var configurationMock = new Mock<IConfiguration>(MockBehavior.Strict);
configurationMock.SetupGet(x => x.Enabled).Returns(true);
configurationMock.SetupGet(x => x.ProjectApiKey).Returns("ABC123");
configurationMock.SetupGet(x => x.Session.Environment).Returns((string)null);
var applicationHelperMock = new Mock<IApplicationInformation>(MockBehavior.Strict);
applicationHelperMock.Setup(x => x.GetApplicationData()).Returns(new ApplicationData());
var machineHelperMock = new Mock<IMachineInformation>(MockBehavior.Strict);
machineHelperMock.Setup(x => x.GetMachineData()).Returns(new MachineData());
var userHelperMock = new Mock<IUserInformation>(MockBehavior.Strict);
userHelperMock.Setup(x => x.GetDataUser()).Returns(new UserData());
var clientMock = new Mock<IQuilt4NetClient>(MockBehavior.Strict);
clientMock.SetupGet(x => x.Configuration).Returns(() => configurationMock.Object);
clientMock.SetupGet(x => x.WebApiClient).Returns(() => webApiClientMock.Object);
clientMock.SetupGet(x => x.Information.Application).Returns(() => applicationHelperMock.Object);
clientMock.SetupGet(x => x.Information.Machine).Returns(() => machineHelperMock.Object);
clientMock.SetupGet(x => x.Information.User).Returns(() => userHelperMock.Object);
var session = new SessionHandler(clientMock.Object);
session.SessionEndCompletedEvent += delegate { sessionEndCompletedEventCount++; };
session.SessionEndStartedEvent += delegate { sessionEndStartedEventCount++; };
var response = await session.GetSessionKeyAsync();
//Act
var task1 = Task.Run(() => session.EndAsync());
var task2 = Task.Run(() => session.EndAsync());
var task3 = Task.Run(() => { System.Threading.Thread.Sleep(400); return session.EndAsync(); });
Task.WaitAll(task1, task2, task3);
//Assert
Assert.That(response,Is.EqualTo(sessionKey));
Assert.That(session.IsRegisteredOnServer, Is.False);
Assert.That(sessionEndStartedEventCount, Is.EqualTo(1));
Assert.That(sessionEndCompletedEventCount, Is.EqualTo(1));
webApiClientMock.Verify(x => x.ExecuteCommandAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<Guid>()), Times.Once);
}