/**
  * @test
  * @group warnings
  */
 public function objectInterpolation()
 {
     $object = new \stdClass();
     $context = array('key' => '({{objectKey}})', 'objectKey' => $object);
     $expected = array('key' => '(<object>)', 'objectKey' => $object);
     $this->assertEquals($expected, $this->interpolator->interpolate($context));
     $this->assertTriggeredError('Object interpolation: "objectKey"', E_USER_WARNING);
 }