[lang-ref] ( is_alnum_multibyte ) ( csharp )

[Theory]
[InlineData("abc123", true)]
[InlineData("abc 123", false)]
[InlineData("ａ", true)]
[InlineData("１", true)]
[InlineData("　", false)]
[InlineData("）", false)]
[InlineData("あ", true)] // 意外
[InlineData("漢", true)] // 意外
public void TestIsAlnumMultibyte(string text, bool expected)
{
    // text.All(char.IsLetterOrDigit)

    bool actual = text.All(char.IsLetterOrDigit);


    Assert.Equal(expected, actual);
}