public void IsValid()
{
var attribute = new CannotBeNullOrWhitespaceAttribute();
Assert.AreEqual(false, attribute.IsValid(null));
Assert.AreEqual(false, attribute.IsValid(DBNull.Value));
Assert.AreEqual(false, attribute.IsValid(string.Empty));
Assert.AreEqual(false, attribute.IsValid(" "));
Assert.AreEqual(false, attribute.IsValid("\t"));
Assert.AreEqual(true, attribute.IsValid("aaa"));
}
public void IsValidFail(object value)
{
var attribute = new CannotBeNullOrWhitespaceAttribute();
try
{
attribute.IsValid(value);
Assert.Fail();
}
catch (ArgumentException ex)
{
Assert.AreEqual("Value must be of type String.", ex.Message);
}
}
