public async Task ShouldReturnExpectedIfThereIsRetryPlanForExceptionTypeAndGiveUsTryCountAsTwo()
{
var cancellationToken = new CancellationToken(false);
var value = 1;
await AsyncRetryExecutor.Execute(cancellationToken, _ =>
{
do
{
value++;
switch (value)
{
case 2:
throw new Exception();
case 4:
throw new Exception();
}
}while (value < 5);
return(Task.FromResult(value));
}, async _ => await new ValueTask <RetryStrategy?>(new RetryStrategy(RetryTimes.Two))
, (_, _) => new ValueTask());
Assert.True(value == 5);
}
public async Task ShouldGetExceptionIfValueIsTwoAndFourButRetryOneMoreTimeAndReturnFour_BecauseRetryIsOneTime()
{
var cancellationToken = new CancellationToken(false);
var value = 1;
await AsyncRetryExecutor.Execute(cancellationToken, _ =>
{
do
{
value++;
switch (value)
{
case 2:
throw new Exception();
case 4:
throw new Exception();
}
}while (value < 5);
return(Task.FromResult(value));
}, async _ => await new ValueTask <RetryStrategy?>(new RetryStrategy(RetryTimes.One)));
Assert.True(value == 4);
}
public async Task ShouldReturnExpectedIfThereIsRetryPlanForExceptionType()
{
var cancellationToken = new CancellationToken(false);
var value = 1;
await AsyncRetryExecutor.Execute(cancellationToken, _ =>
{
do
{
value++;
if (value == 2)
{
throw new ArgumentException();
}
}while (value < 3);
return(Task.FromResult(value));
}, async exception =>
{
if (exception is ArgumentException)
{
return(await new ValueTask <RetryStrategy?>(new RetryStrategy(RetryTimes.One)));
}
return(await new ValueTask <RetryStrategy?>(RetryStrategy.None));
});
Assert.True(value == 3);
}
public async Task ShouldReturnNull()
{
var cancellationToken = new CancellationToken(false);
var execute = await AsyncRetryExecutor.Execute <object>(cancellationToken, _ => null, async _ => await OnException());
Assert.Null(execute);
}
public async Task ShouldReturnExpected()
{
var cancellationToken = new CancellationToken(false);
var value = 1;
await AsyncRetryExecutor.Execute(cancellationToken, _ =>
{
value++;
return(Task.FromResult(value));
}, async _ => await OnException());
Assert.True(value == 2);
}
public async Task ShouldRetryStrategyAsNone_IfOnExceptionMethodIsNull()
{
var cancellationToken = new CancellationToken(false);
var value = 1;
await AsyncRetryExecutor.Execute(cancellationToken, _ =>
{
do
{
value++;
if (value == 2)
{
throw new Exception();
}
}while (value < 5);
return(Task.FromResult(value));
}, _ => new ValueTask <RetryStrategy?>(RetryStrategy.None));
}
public async Task ShouldGetExceptionIfValueIsTwoButRetryOneMoreTimeAndReturnExpected()
{
var cancellationToken = new CancellationToken(false);
var value = 1;
await AsyncRetryExecutor.Execute(cancellationToken, _ =>
{
do
{
value++;
if (value == 2)
{
throw new Exception();
}
}while (value < 5);
return(Task.FromResult(value));
}, async _ => await new ValueTask <RetryStrategy?>(new RetryStrategy(RetryTimes.One)));
Assert.True(value == 5);
}