public void Backoff_WithFastFirstEqualToTrue_ResultIsZero()
{
// Arrange
var delay = TimeSpan.FromMilliseconds(1);
const int retryCount = 3;
const bool fastFirst = true;
// Act
IEnumerable <TimeSpan> result = Backoff.Constant(delay, retryCount, fastFirst);
// Assert
result.Should().NotBeNull();
result.Should().HaveCount(retryCount);
bool first = true;
foreach (TimeSpan timeSpan in result)
{
if (first)
{
timeSpan.Should().Be(TimeSpan.Zero);
first = false;
}
else
{
timeSpan.Should().Be(delay);
}
}
}
public void Backoff_WithRetryCountLessThanZero_ThrowsException()
{
// Arrange
var delay = TimeSpan.FromMilliseconds(1);
const int retryCount = -1;
const bool fastFirst = false;
// Act
Action act = () => Backoff.Constant(delay, retryCount, fastFirst);
// Assert
act.Should().Throw <ArgumentOutOfRangeException>()
.And.ParamName.Should().Be("retryCount");
}
public void Backoff_WithRetryEqualToZero_ResultIsEmpty()
{
// Arrange
var delay = TimeSpan.FromMilliseconds(1);
const int retryCount = 0;
const bool fastFirst = false;
// Act
IEnumerable <TimeSpan> result = Backoff.Constant(delay, retryCount, fastFirst);
// Assert
result.Should().NotBeNull();
result.Should().BeEmpty();
}
public void Backoff_WithDelayLessThanZero_ThrowsException()
{
// Arrange
var delay = new TimeSpan(-1);
const int retryCount = 3;
const bool fastFirst = false;
// Act
Action act = () => Backoff.Constant(delay, retryCount, fastFirst);
// Assert
act.Should().Throw <ArgumentOutOfRangeException>()
.And.ParamName.Should().Be("delay");
}
public void Backoff_ResultIsConstant()
{
// Arrange
var delay = TimeSpan.FromMilliseconds(10);
const int retryCount = 3;
const bool fastFirst = false;
// Act
IEnumerable <TimeSpan> result = Backoff.Constant(delay, retryCount, fastFirst);
// Assert
result.Should().NotBeNull();
result.Should().HaveCount(retryCount);
foreach (TimeSpan timeSpan in result)
{
timeSpan.Should().Be(delay);
}
}