Duplicate the current BeNullOrEmpty() & NotBeNullOrEmpty() but test for NullOrWhiteSpace.
Example.
string actual = "ABCDEFGHI";
actual.Should().NotBeNullOrWhiteSpace() // does not throw exception.
string actual = " ";
actual.Should().NotBeNullOrWhiteSpace() // does throw exception.
Comments: ** Comment from web user: dennisdoomen **
Example.
string actual = "ABCDEFGHI";
actual.Should().NotBeNullOrWhiteSpace() // does not throw exception.
string actual = " ";
actual.Should().NotBeNullOrWhiteSpace() // does throw exception.
Comments: ** Comment from web user: dennisdoomen **
I checked the code again. I was already accounting for different kinds of whitespace (e.g. tabs, newlines, etc.)