public function testSetPluginSelectLanguageRows() {
        $this->MainOption->setPluginSelectLanguageRows('abc');
        $this->assertEquals('abc', $this->MainOption->getPluginSelectLanguageRows());
        $this->MainOption->setPluginSelectLanguageRows(['_' => 'abc']);
        $this->assertEquals(['_' => 'abc'], $this->MainOption->getPluginSelectLanguageRows());