public async Task Run_invokes_operation_at_least_once(int maximumRetryCount, bool canceled)
{
// Arrange
TransientFaultDetectionStrategy transientFaultDetectionStrategy =
new DelegatingTransientFaultDetectionStrategy(exception => true);
RetryIntervalStrategy retryIntervalStrategy =
new DelegatingRetryIntervalStrategy(
retried => TimeSpan.FromMilliseconds(1),
immediateFirstRetry: false);
var sut = new RetryPolicy(
maximumRetryCount,
transientFaultDetectionStrategy,
retryIntervalStrategy);
var functionProvider = Mock.Of <IFunctionProvider>();
var cancellationToken = new CancellationToken(canceled);
// Act
await sut.Run(functionProvider.Func <CancellationToken, Task>, cancellationToken);
// Assert
Mock.Get(functionProvider).Verify(x => x.Func <CancellationToken, Task>(cancellationToken), Times.AtLeastOnce());
}
public void GetInterval_relays_to_function()
{
var fixture = new Fixture();
var retried = fixture.Create <int>();
var expected = fixture.Create <TimeSpan>();
var functionProvider = Mock.Of <IFunctionProvider>(
x => x.Func <int, TimeSpan>(retried) == expected);
var sut = new DelegatingRetryIntervalStrategy(functionProvider.Func <int, TimeSpan>, false);
TimeSpan actual = sut.GetInterval(retried);
actual.Should().Be(expected);
}
public void constructor_has_guard_clause_against_negative_maximumRetryCount(int maximumRetryCount)
{
TransientFaultDetectionStrategy transientFaultDetectionStrategy =
new DelegatingTransientFaultDetectionStrategy(exception => true);
RetryIntervalStrategy retryIntervalStrategy =
new DelegatingRetryIntervalStrategy(
retried => TimeSpan.FromMilliseconds(1),
immediateFirstRetry: false);
Action action = () => new RetryPolicy(maximumRetryCount, transientFaultDetectionStrategy, retryIntervalStrategy);
action.Should().Throw <ArgumentOutOfRangeException>().Where(x => x.ParamName == "maximumRetryCount");
}
