public void When_retrying_a_task_that_always_fails_on_multiple_exceptions()
{
var counter = 0;
var retryEx = Should.Throw <RetryException>(async() =>
{
await Retry.OnAny <ArgumentNullException, NullReferenceException>(() => {
counter++;
throw new NullReferenceException();
});
});
retryEx.RetryCount.ShouldBe((uint)1);
retryEx.Message.ShouldBe("Retry failed after: 1 attempts.");
counter.ShouldBe(2);
counter = 0;
retryEx = Should.Throw <RetryException>(async() =>
{
await Retry.OnAny <ArgumentNullException, NullReferenceException>(() => {
counter++;
throw new NullReferenceException();
},
100.Milliseconds(),
100.Milliseconds(),
100.Milliseconds());
});
retryEx.RetryCount.ShouldBe((uint)3);
retryEx.Message.ShouldBe("Retry failed after: 3 attempts.");
counter.ShouldBe(4);
}
public void When_retrying_a_task_that_does_not_fail_on_multiple_exceptions()
{
Should.NotThrow(async() =>
{
var counter = 0;
await Retry.OnAny <ArgumentNullException, NullReferenceException>(async() => {
await Task.Yield();
counter++;
});
counter.ShouldBe(1);
});
Should.NotThrow(async() =>
{
var counter = 0;
await Retry.OnAny <ArgumentNullException, NullReferenceException>(async() => {
await Task.Yield();
counter++;
},
100.Milliseconds(),
100.Milliseconds(),
100.Milliseconds());
counter.ShouldBe(1);
});
}
public void When_retrying_a_task_of_result_that_fails_twice_but_succeeds_eventually_on_multiple_exceptions()
{
Should.NotThrow(async() =>
{
var counter = 0;
var result = await Retry.OnAny <ArgumentNullException, NullReferenceException, int>(async() => {
await Task.Yield();
if (counter++ < 2)
{
throw new NullReferenceException();
}
return(42);
},
100.Milliseconds(),
100.Milliseconds(),
100.Milliseconds());
counter.ShouldBe(3);
result.ShouldBe(42);
});
}