I have some methods that rely on some random calculations to make a suggestion and I need to run the Fact several times to make sure is ok.
I could include a for loop inside the fact i want to test but because there are several test where I want to do this I was lookup for a cleaner approach, something like this Repeat attribute in junit: http://www.codeaffine.com/2013/04/10/running-junit-tests-repeatedly-without-loops/
Can I easily implement something like this in xunit?
You'll have to create a new DataAttribute
to tell xunit to run the same test multiple times.
Here's is a sample following the same idea of junit:
public class RepeatAttribute : DataAttribute
{
private readonly int _count;
public RepeatAttribute(int count)
{
if (count < 1)
{
throw new ArgumentOutOfRangeException(nameof(count),
"Repeat count must be greater than 0.");
}
_count = count;
}
public override IEnumerable<object[]> GetData(MethodInfo testMethod)
{
return Enumerable.Repeat(new object[0], _count);
}
}
With this code in place, you just need to change your Fact
to Theory
and use the Repeat
like this:
[Theory]
[Repeat(10)]
public void MyTest()
{
...
}