public function testGetWikiValueForLengthOf()
{
$instance = new StringValue('_txt');
$instance->setUserValue('abcdefあいうエオ');
$this->assertEquals('abcdefあい', $instance->getWikiValueForLengthOf(8));
$this->assertEquals('abcdefあいうエオ', $instance->getWikiValueForLengthOf(14));
}
