public static void IsUpperLetter_Fails_ForNullString() => Assert.False(Ascii.IsUpperLetter(null));
public static void IsDigitOrUpperLetter_ReturnsTrue_ForValidInput(string value) => Assert.True(Ascii.IsDigitOrUpperLetter(value));
public static void IsDigitOrUpperLetter_ReturnsFalse_ForInvalidInput(string value) => Assert.False(Ascii.IsDigitOrUpperLetter(value));
public static void IsDigitOrUpperLetter_Fails_ForEmptyString() => Assert.False(Ascii.IsDigitOrUpperLetter(String.Empty));
public static void IsDigit_ReturnsFalse_ForInvalidInput(string value) => Assert.False(Ascii.IsDigit(value));
public static void IsDigit_ReturnsTrue_ForValidInput(string value) => Assert.True(Ascii.IsDigit(value));
public static void IsDigit_Fails_ForEmptyString() => Assert.False(Ascii.IsDigit(String.Empty));
public static void IsDigit_Fails_ForNullString() => Assert.False(Ascii.IsDigit(null));