public async Task PauseAndResume_SimpleTask_ExecutionPausedAndResumed()
{
int executions = 0;
var service = new TestRecurringDistributedBackgroundService(
_ =>
{
executions++;
return(Task.CompletedTask);
},
_serviceProvider.GetRequiredService <DbDistributedLockManager>());
await service.StartAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executions > 1);
executions.Should().BeGreaterThan(0);
service.Pause();
await Task.Delay(50);
var executionsBeforeStop = executions;
await Task.Delay(500);
executions.Should().Be(executionsBeforeStop);
service.Resume();
await AsyncTestingUtil.WaitAsync(() => executions > executionsBeforeStop);
executions.Should().BeGreaterThan(executionsBeforeStop);
}
public async Task StartAsync_WithDbLockManager_OnlyOneTaskIsExecutedSimultaneously()
{
bool executed1 = false;
bool executed2 = false;
var service1 = new TestRecurringDistributedBackgroundService(stoppingToken =>
{
executed1 = true;
return(Task.CompletedTask);
}, new DbDistributedLockManager(_servicesProvider));
await service1.StartAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executed1);
var service2 = new TestRecurringDistributedBackgroundService(_ =>
{
executed2 = true;
return(Task.CompletedTask);
}, new DbDistributedLockManager(_servicesProvider));
await service2.StartAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executed2, 100);
executed1.Should().BeTrue();
executed2.Should().BeFalse();
await service1.StopAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executed2);
executed2.Should().BeTrue();
}
public async Task StartAsync_SimpleTask_TaskExecutedMultipleTimes()
{
int executions = 0;
var service = new TestRecurringDistributedBackgroundService(_ =>
{
executions++;
return(Task.CompletedTask);
}, new DbDistributedLockManager(_servicesProvider));
await service.StartAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executions > 1);
executions.Should().BeGreaterThan(1);
}
public async Task StartAsync_WithDbLockManager_TaskIsExecuted()
{
bool executed = false;
var service = new TestRecurringDistributedBackgroundService(_ =>
{
executed = true;
return(Task.CompletedTask);
}, new DbDistributedLockManager(_servicesProvider));
await service.StartAsync(CancellationToken.None);
AsyncTestingUtil.Wait(() => executed);
executed.Should().BeTrue();
}
public async Task StartAsync_SimpleTask_TaskExecutedMultipleTimes()
{
int executions = 0;
var service = new TestRecurringDistributedBackgroundService(_ =>
{
executions++;
return(Task.CompletedTask);
}, new TestLockManager());
await service.StartAsync(CancellationToken.None);
await Task.Delay(100);
executions.Should().BeGreaterThan(1);
}
public async Task StopAsync_SimpleTask_ExecutionStopped()
{
int executions = 0;
var service = new TestRecurringDistributedBackgroundService(_ =>
{
executions++;
return(Task.CompletedTask);
}, new DbDistributedLockManager(_servicesProvider));
await service.StartAsync(CancellationToken.None);
await Task.Delay(100);
await service.StopAsync(CancellationToken.None);
var executionsBeforeStop = executions;
await Task.Delay(200);
executions.Should().Be(executionsBeforeStop);
}
public async Task StartAsync_WithDbLockManager_OnlyOneTaskIsExecutedSimultaneously()
{
bool executed1 = false;
bool executed2 = false;
var service1 = new TestRecurringDistributedBackgroundService(
_ =>
{
executed1 = true;
return(Task.CompletedTask);
},
_serviceProvider.GetRequiredService <DbDistributedLockManager>());
await service1.StartAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executed1);
var service2 = new TestRecurringDistributedBackgroundService(
_ =>
{
executed2 = true;
return(Task.CompletedTask);
},
_serviceProvider.GetRequiredService <DbDistributedLockManager>());
await service2.StartAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executed2, TimeSpan.FromMilliseconds(100));
executed1.Should().BeTrue();
executed2.Should().BeFalse();
await service1.StopAsync(CancellationToken.None);
await AsyncTestingUtil.WaitAsync(() => executed2);
executed2.Should().BeTrue();
}