removeResourceTypeFromDocument example

  public function testPostIndividual() {
    // @todo Remove this in https://www.drupal.org/node/2300677.     if ($this->entity instanceof ConfigEntityInterface) {
      $this->markTestSkipped('POSTing config entities is not yet supported.');
    }

    // Try with all of the following request bodies.     $unparseable_request_body = '!{>}<';
    $parseable_valid_request_body = Json::encode($this->getPostDocument());
    $parseable_invalid_request_body_missing_type = Json::encode($this->removeResourceTypeFromDocument($this->getPostDocument()));
    if ($this->entity->getEntityType()->hasKey('label')) {
      $parseable_invalid_request_body = Json::encode($this->makeNormalizationInvalid($this->getPostDocument(), 'label'));
    }
    $parseable_invalid_request_body_2 = Json::encode(NestedArray::mergeDeep(['data' => ['id' => $this->randomMachineName(129)]], $this->getPostDocument()));
    $parseable_invalid_request_body_3 = Json::encode(NestedArray::mergeDeep(['data' => ['attributes' => ['field_rest_test' => $this->randomString()]]], $this->getPostDocument()));
    $parseable_invalid_request_body_4 = Json::encode(NestedArray::mergeDeep(['data' => ['attributes' => ['field_nonexistent' => $this->randomString()]]], $this->getPostDocument()));

    // The URL and Guzzle request options that will be used in this test. The     // request options will be modified/expanded throughout this test:     // - to first test all mistakes a developer might make, and assert that the     // error responses provide a good DX