/**
* @return null
*/
public function testIsEnableDisableParentheses()
{
$expected = "(leftop = rightop)";
$this->expr->enableParentheses();
$this->assertEquals($expected, $this->expr->build());
$expected = "leftop = rightop";
$this->expr->disableParentheses();
$this->assertEquals($expected, $this->expr->build());
}
