NUnit parameterized tests with datetime

Question

Is it not possible with NUnit to go the following?

[TestCase(new DateTime(2010,7,8), true)] public void My Test(DateTime startdate, bool expectedResult) {     ... } 

I really want to put a datetime in there, but it doesn't seem to like it. The error is:

An attribute argument must be a constant expression, typeof expression or array creation expression of an attribute parameter type

Some documentation I read seems to suggest you should be able to, but I can't find any examples.

Answer 1

You can specify the date as a constant string in the TestCase attribute and then specify the type as DateTime in the method signature.

NUnit will automatically do a DateTime.Parse() on the string passed in.

Example:

[TestCase("01/20/2012")] [TestCase("2012-1-20")] // Same case as above in ISO 8601 format public void TestDate(DateTime dt) {     Assert.That(dt, Is.EqualTo(new DateTime(2012, 01, 20))); }