Repeating a [TestCase] 100 times in NUnit - unit-testing

Question

I'm converting a webtest that loops 100 times (fires the request and validates the response 100 times) to NUnit. It seems that the [Repeat] attribute only works for [Test], not [TestCase] or any other decoration/attribute. What is the cleanest way to do this? I want to fire that one test case with those parameters 100 times, and I'd like to do it without adding a loopCount parameter to my test case and nesting my act and assert sections in a for loop.
The below code only runs once.
[TestCase("arg1", "arg2"), Repeat(100)]
public void testing(string arg1, string arg2)
{
//Arrange
//Act
var response = RequestSender.SendGetRequest();
//Assert
AssertStuff(arg1, arg2);
}

Answer 1

From the online NUnit documentation for Repeat, it would appear that this behaviour is deliberate.
Notes:
It is not currently possible to use RepeatAttribute on a TestFixture or any other type of test suite. Only single tests may be repeated.
Since a parameterized test method represents a suite, RepeatAttribute is ignored when it appears on such a method.
With the assumption that TestCase is obviously regarded as a parameterized test. The loop looks inevitable, without some additional customization?
What you could do instead is use use a test case source and feed it an enumerable of 100 repeated items:
private static readonly IEnumerable<Tuple<string, string>> _oneHundredCases =
Enumerable.Range(0, 100)
.Select(_ => Tuple.Create("arg1", "arg2"));
[TestCaseSource(nameof(_oneHundredCases))]
public void testing(Tuple<string, string> theArgs)
{
...
AssertStuff(theArgs.Item1, theArgs.Item2);
}
But for the same price, you may as well vary the arguments a bit?, e.g.
_oneHundredCases =
Enumerable.Range(0, 100)
.Select(n => Tuple.Create(n.ToString(), $"arg{n}"));