public function testNotCalculable()
{
$formula = new FormulaModel('2 + 1 + {{ sf }} - {{ sf2 }}', false);
$formula->setRenderer(new StrtrFormulaRenderer());
$formula->setSubFormula('sf', new FormulaModel('3*10', true));
$formula->setSubFormula('sf2', new FormulaModel('10-{{sf3}}', false));
$this->phpString($formula->render())->isEqualTo('2 + 1 + 30 - 10-{{sf3}}');
$formula->setSubFormula('sf3', new FormulaModel('5-3', true));
$formula->getSubFormula('sf2')->setIsCalculable(true);
$this->phpString($formula->render())->isEqualTo('2 + 1 + 30 - 2');
$formula->setIsCalculable(true);
$this->phpString($formula->render())->isEqualTo('31');
}
