By "value type", I mean "a type that represents a value in some domain." Two of these objects are equal if they have the same value.
To correctly implement this in .Net is tricky. There's object.Equals() and operator == and GetHashCode() and more. These are assertions that ensure that you have checked all the checkboxes in implementing equality.
You can use it like this:
class NtfsPath
{
// implementation here
}
[Test]
public void NtfsPathHasValueEquality()
{
ValueTypeAssertions.HasValueEquality(new NtfsPath("foo.txt"), new NtfsPath("foo.txt"));
ValueTypeAssertions.HasValueInequality(new NtfsPath("foo.txt"), new NtfsPath("bar.txt"));
}
[Test]
public void NtfsPathIsCaseInsensitive()
{
ValueTypeAssertions.HasValueEquality(new NtfsPath("foo.txt"), new NtfsPath("FOO.TXT"));
}
99% of the ideas in this project came from other people. A big chunk came from Brian Geihsler.