public void PreviousCardValue_Calls_PreviousCardValue()
{
// Arrange
m_Previous.PreviousCardValue(Arg.Any <char>()).Returns('?');
// Act
char actual = m_Sut.PreviousCardValue('2');
// Assert
Assert.AreEqual('?',
actual);
}
public virtual char PreviousCardValue(char value)
{
return(m_Previous.PreviousCardValue(value));
}