public void NullConverterException()
{
// Arrange
IConverter testedConverter = null;
var expectedExceptionType = typeof(ArgumentNullException);
var expectedExceptionMessage = SourceParameterName;
// Act
var actualException =
Assert.Throws <ArgumentNullException>(() => testedConverter.CanConvertTo(expectedExceptionType));
// Assert
Assert.Equal(expectedExceptionMessage, actualException.ParamName);
}