public async Task Should_handle_handled_fault_and_execute_fallback_following_faulting_action_execution_when_user_delegate_does_not_observe_cancellationtoken()
{
bool fallbackActionExecuted = false;
Func <CancellationToken, Task <ResultPrimitive> > fallbackAction = ct => { fallbackActionExecuted = true; return(Task.FromResult(ResultPrimitive.Substitute)); };
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
CancellationToken cancellationToken = cancellationTokenSource.Token;
FallbackPolicy <ResultPrimitive> policy = Policy
.HandleResult(ResultPrimitive.Fault)
.OrResult(ResultPrimitive.FaultAgain)
.FallbackAsync(fallbackAction);
int attemptsInvoked = 0;
Action onExecute = () => attemptsInvoked++;
Scenario scenario = new Scenario
{
AttemptDuringWhichToCancel = 1,
ActionObservesCancellation = false
};
(await policy.RaiseResultSequenceAndOrCancellationAsync(scenario, cancellationTokenSource, onExecute, ResultPrimitive.Fault).ConfigureAwait(false))
.Should().Be(ResultPrimitive.Substitute);
attemptsInvoked.Should().Be(1);
fallbackActionExecuted.Should().BeTrue();
}
public async Task Should_execute_action_when_non_faulting_and_cancellationtoken_not_cancelled()
{
bool fallbackActionExecuted = false;
Func <CancellationToken, Task <ResultPrimitive> > fallbackAction = ct => { fallbackActionExecuted = true; return(Task.FromResult(ResultPrimitive.Substitute)); };
FallbackPolicy <ResultPrimitive> policy = Policy
.HandleResult(ResultPrimitive.Fault)
.OrResult(ResultPrimitive.FaultAgain)
.FallbackAsync(fallbackAction);
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
CancellationToken cancellationToken = cancellationTokenSource.Token;
int attemptsInvoked = 0;
Action onExecute = () => attemptsInvoked++;
Scenario scenario = new Scenario
{
AttemptDuringWhichToCancel = null,
};
(await policy.RaiseResultSequenceAndOrCancellationAsync(scenario, cancellationTokenSource, onExecute, ResultPrimitive.Good).ConfigureAwait(false))
.Should().Be(ResultPrimitive.Good);
attemptsInvoked.Should().Be(1);
fallbackActionExecuted.Should().BeFalse();
}