public void CharacterIsALetter()
{
// Arrange
ChallengesSet02 challenger = new ChallengesSet02();
string lowercaseAlphabet = "abcdefghijklmnopqrstuvwxyz";
// Check all letters
foreach (char letter in lowercaseAlphabet)
{
// Act
bool lowercaseActual = challenger.CharacterIsALetter(letter);
bool uppercaseActual = challenger.CharacterIsALetter(char.ToUpper(letter));
// Assert
Assert.True(lowercaseActual);
Assert.True(uppercaseActual);
}
}
public void CharacterIsNotALetter()
{
// Arrange
ChallengesSet02 challenger = new ChallengesSet02();
string nonLetters = "0123456789`~!@#$%^&*()-_=+[{]}\\|;:'\",<.>/?\u2222";
// Check all letters
foreach (char letter in nonLetters)
{
// Act
bool actual = challenger.CharacterIsALetter(letter);
// Assert
Assert.False(actual);
}
}