class AndExpressionTest

class AndExpressionTest extends RulesUnitTestBase {
  
  /**
   * The 'and' condition container being tested.
   *
   * @var \Drupal\rules\Engine\ConditionExpressionContainerInterface
   */
  protected $and;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->and = new AndExpression([], '', [
      'label' => 'Condition set (AND)',
    ], $this->expressionManager
      ->reveal(), $this->rulesDebugLogger
      ->reveal());
  }
  
  /**
   * Tests one condition.
   */
  public function testOneCondition() {
    // The method on the test condition must be called once.
    $this->trueConditionExpression
      ->executeWithState(Argument::type(ExecutionStateInterface::class))
      ->shouldBeCalledTimes(1);
    $this->and
      ->addExpressionObject($this->trueConditionExpression
      ->reveal());
    $this->assertTrue($this->and
      ->execute(), 'Single condition returns TRUE.');
  }
  
  /**
   * Tests an empty AND.
   */
  public function testEmptyAnd() {
    $property = new \ReflectionProperty($this->and, 'conditions');
    $property->setAccessible(TRUE);
    $this->assertEmpty($property->getValue($this->and));
    $this->assertFalse($this->and
      ->execute(), 'Empty AND returns FALSE.');
  }
  
  /**
   * Tests two true conditions.
   */
  public function testTwoConditions() {
    // The method on the test condition must be called once.
    $this->trueConditionExpression
      ->executeWithState(Argument::type(ExecutionStateInterface::class))
      ->shouldBeCalledTimes(1);
    $second_condition = $this->prophesize(ConditionExpressionInterface::class);
    $second_condition->getUuid()
      ->willReturn('true_uuid2');
    $second_condition->getWeight()
      ->willReturn(0);
    $second_condition->executeWithState(Argument::type(ExecutionStateInterface::class))
      ->willReturn(TRUE)
      ->shouldBeCalledTimes(1);
    $this->and
      ->addExpressionObject($this->trueConditionExpression
      ->reveal())
      ->addExpressionObject($second_condition->reveal());
    $this->assertTrue($this->and
      ->execute(), 'Two conditions returns TRUE.');
  }
  
  /**
   * Tests two false conditions.
   */
  public function testTwoFalseConditions() {
    // The method on the test condition must be called once.
    $this->falseConditionExpression
      ->executeWithState(Argument::type(ExecutionStateInterface::class))
      ->shouldBeCalledTimes(1);
    $second_condition = $this->prophesize(ConditionExpressionInterface::class);
    $second_condition->getUuid()
      ->willReturn('false_uuid2');
    $second_condition->getWeight()
      ->willReturn(0);
    // Evaluation of an AND condition group should stop with first FALSE.
    // The second condition should not be evaluated.
    $second_condition->executeWithState(Argument::type(ExecutionStateInterface::class))
      ->willReturn(FALSE)
      ->shouldNotBeCalled();
    $this->and
      ->addExpressionObject($this->falseConditionExpression
      ->reveal())
      ->addExpressionObject($second_condition->reveal());
    $this->assertFalse($this->and
      ->execute(), 'Two false conditions return FALSE.');
  }
  
  /**
   * Tests evaluation order with two conditions.
   */
  public function testEvaluationOrder() {
    // The method on the false test condition must be called once.
    $this->falseConditionExpression
      ->executeWithState(Argument::type(ExecutionStateInterface::class))
      ->shouldBeCalledTimes(1);
    // Set weight to 1 so it will be evaluated second.
    $this->falseConditionExpression
      ->getWeight()
      ->willReturn(1);
    $second_condition = $this->prophesize(ConditionExpressionInterface::class);
    $second_condition->getUuid()
      ->willReturn('true_uuid2');
    $second_condition->getWeight()
      ->willReturn(0);
    // If the above false condition is evaluated first, the second condition
    // will not be called. If the evaluation order is correct, then it should
    // be called exactly once.
    $second_condition->executeWithState(Argument::type(ExecutionStateInterface::class))
      ->willReturn(TRUE)
      ->shouldBeCalledTimes(1);
    // Second condition should be called first, because of weight.
    $this->and
      ->addExpressionObject($this->falseConditionExpression
      ->reveal())
      ->addExpressionObject($second_condition->reveal());
    $this->assertFalse($this->and
      ->execute(), 'Correct execution order of conditions.');
  }

}