public function testGetExpression()
{
$panel = new Panel('Foobar', $this->config);
$result = $panel->getExpression();
$this->assertFalse(empty($result), 'Expression is empty');
$this->assertTrue(is_string($result), 'Expression is not a string`');
$this->assertContains(Panel::EXP_TOKEN, $result, 'Expression does not contain tokens');
// Cleaned up expression
$result = $panel->getExpression(true);
$this->assertNotContains(Panel::EXP_TOKEN, $result, 'Expression contains tokens');
}
