JpnForPhp\Tests\Helper\HelperTest::testConvertHiraganaToKatakanaWhenNoHiragana PHP Method

    public function testConvertHiraganaToKatakanaWhenNoHiragana()
    {
        $result = Helper::convertHiraganaToKatakana($this->katakanaCharacters);
        $this->assertEquals($this->katakanaCharacters, $result);
    }