public function HooksExampleTest::testHooksExample in Examples for Developers 8

Same name and namespace in other branches

1. 3.x modules/hooks_example/tests/src/Functional/HooksExampleTest.php \Drupal\Tests\hooks_example\Functional\HooksExampleTest::testHooksExample()

Test the output of the example page.

File

hooks_example/tests/src/Functional/HooksExampleTest.php, line 47

Class

HooksExampleTest

Test the functionality of the Hooks Example module.

Namespace

Drupal\Tests\hooks_example\Functional

Code

public function testHooksExample() {

  // Make sure our menus and links work.
  $this
    ->drupalGet('<front>');
  $this
    ->assertSession()
    ->linkExists('Hooks Example');

  // Test the description page at examples/hook-example returns a 200.
  $this
    ->drupalGet('examples/hooks-example');
  $this
    ->assertSession()
    ->statusCodeEquals(200);

  // Test that our implementation of hook_help() works.
  $this
    ->drupalGet('admin/help/hooks_example');
  $this
    ->assertSession()
    ->statusCodeEquals(200);
  $this
    ->assertSession()
    ->pageTextContains('This text is provided by the function hooks_example_help()');

  // Test that our implementation of hook_node_view() works.
  // Create a new node.
  $settings = [
    'type' => 'page',
    'title' => 'Hooks Example Testing Node',
    'status' => 1,
  ];
  $node = $this
    ->drupalCreateNode($settings);
  $this
    ->drupalGet($node
    ->toUrl());

  // Test that the output added to the page by hooks_example_node_view() is
  // present. Which also tests that our page view counting was initialized.
  $this
    ->assertSession()
    ->pageTextContains('You have viewed this node 1 times this session.');

  // Tests that the message set by
  // hooks_example_hooks_example_count_incremented() is displayed on the page.
  // Which also has the effect of testing to see wehther or not our custom
  // hook is being invoked.
  $this
    ->assertSession()
    ->pageTextContains('This is the first time you have viewed the node ' . $node
    ->label() . '.');

  // Navigate to a new page, and then back and verify the counter was updated.
  $this
    ->drupalGet('<front>');
  $this
    ->drupalGet($node
    ->toUrl());
  $this
    ->assertSession()
    ->pageTextContains('You have viewed this node 2 times this session.');
  $this
    ->assertSession()
    ->pageTextNotContains('This is the first time you have viewed the node ' . $node
    ->label() . '.');

  // Test our implementation of hook_form_alter().
  $this
    ->drupalLogout();
  $this
    ->drupalGet('user/login');
  $this
    ->assertSession()
    ->pageTextContains('This text has been altered by hooks_example_form_alter().');
}