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

    public function testExtractKanaWithLengthEqualsNWhenKanaOnly()
    {
        $result = Helper::extractKana($this->hiraganaCharacters . $this->katakanaCharacters, 4);
        $this->assertEquals(array('ひらがな', 'カタカナ'), $result);
    }