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

    public function testExtractHiraganaWithLengthEqualsNWhenHiraganaOnly()
    {
        $result = Helper::extractHiragana($this->hiraganaCharacters, 2);
        $this->assertEquals(array('ひら', 'がな'), $result);
    }