public function testContext()
{
$context = new base('ruletest');
$this->string($context->getName())->isEqualTo('ruletest')->object($context->proposition('proposition 1', true))->isInstanceOf('MojoLyon\\Axiom\\Context')->object($context->variable('variable 1', 'valeur var 1'))->isInstanceOf('MojoLyon\\Axiom\\Context')->exception(function () use($context) {
$context->operator('and');
})->isInstanceOf('\\DomainException')->object($object1 = $context->findElement('proposition 1'))->isInstanceOf('MojoLyon\\Axiom\\RuleElement\\Proposition')->object($object2 = $context->findElement('variable 1'))->isInstanceOf('MojoLyon\\Axiom\\RuleElement\\Variable')->variable($context->findElement('notset'))->isNull()->string($object1->getName())->isEqualTo('proposition 1')->boolean($object1->getValue())->isTrue()->string($object2->getName())->isEqualTo('variable 1')->string($object2->getValue())->isEqualTo('valeur var 1');
}
/**
* Evaluate the rule
*
* Apply context values on rule elements then evaluate rule
*
* @param Context $context Context for rule evaluation
*
* @throws \UnexpectedValueException
*
* @return RuleElement\Proposition
*/
public function evaluate(Context $context)
{
foreach ($this->elements as $rule) {
if ($rule instanceof RuleElement\Operator) {
continue;
}
$contextEl = $context->findElement($rule->getName());
if ($contextEl === null) {
continue;
}
if (!$rule instanceof $contextEl) {
throw new \UnexpectedValueException("Context element type doesn't match rule element type ");
}
$rule->setValue($contextEl->getValue());
}
return $this->process();
}