public function testSetPluginSelectLanguageCells() {
        $this->MainOption->setPluginSelectLanguageCells('abc');
        $this->assertEquals('abc', $this->MainOption->getPluginSelectLanguageCells());
        $this->MainOption->setPluginSelectLanguageCells(['_' => 'abc']);
        $this->assertEquals(['_' => 'abc'], $this->MainOption->getPluginSelectLanguageCells());