public static void IsUpperLetter3(string value) => Assert.True(Ascii.IsUpperLetter(value));
public static void IsUpperLetter1() => Assert.False(Ascii.IsUpperLetter(null));
public static void IsUpperLetter2() => Assert.False(Ascii.IsUpperLetter(String.Empty));
public static void IsDigitOrUpperLetter4(string value) => Assert.False(Ascii.IsDigitOrUpperLetter(value));
public static void IsDigit4(string value) => Assert.False(Ascii.IsDigit(value));
public static void IsDigit3(string value) => Assert.True(Ascii.IsDigit(value));
public static void IsDigit2() => Assert.False(Ascii.IsDigit(String.Empty));
public static void IsDigit1() => Assert.False(Ascii.IsDigit(null));