public function DescriptionTraitTest::testTemplateFile in Examples for Developers 8

Same name and namespace in other branches

1. 3.x tests/src/Kernel/DescriptionTraitTest.php \Drupal\Tests\examples\Kernel\DescriptionTraitTest::testTemplateFile()

Make sure that the trait finds the template file and renders it.

File

tests/src/Kernel/DescriptionTraitTest.php, line 23

Class

DescriptionTraitTest

Test of the Description Trait.

Namespace

Drupal\Tests\examples\Kernel

Code

public function testTemplateFile() {
  $sample_controller = SampleExampleController::create($this->container);

  // We want to test ::getDescriptionTemplatePath(), which is a protected
  // method. Use a little of the Old Black Reflection Magic.
  $ref_get_path = new \ReflectionMethod($sample_controller, 'getDescriptionTemplatePath');
  $ref_get_path
    ->setAccessible(TRUE);
  $this
    ->assertFileExists($ref_get_path
    ->invoke($sample_controller));

  // And get our render output.
  $render_array = $sample_controller
    ->description();

  // We cast to string, since renderPlain() returns a markup object.
  $output = (string) $this->container
    ->get('renderer')
    ->renderPlain($render_array);

  // Did the template load?
  $this
    ->assertContains('Template loaded!', $output);

  // Were the variables resolved correctly?
  $this
    ->assertContains('Used in module: examples_description_test.', $output);
  $this
    ->assertContains('Our slogan for today: We aim to please.', $output);
}