public void Returns_Empty_String_If_param_is_null()
{
// Arrange
// Act
string result = KataNumbers.ToWords(null);
// Assert
Assert.Equal(String.Empty, result);
}
public void Returns_twelve_for_12()
{
// Arrange
string param = "12";
// Act
var result = KataNumbers.ToWords(param);
// Assert
Assert.Equal("Twelve", result);
}
public void Returns_One_for_1()
{
// Arrange
string param = "1";
// Act
var result = KataNumbers.ToWords(param);
// Assert
Assert.Equal("One", result);
}