SimpleTestExampleMockModuleTest.php

<?php

namespace Drupal\testing_example\Tests;

use Drupal\simpletest\WebTestBase;

/**
 * Demonstrate SimpleTest with a mock module.
 *
 * SimpleTestExampleMockModuleTestCase allows us to demonstrate how you can
 * use a mock module to aid in functional testing in Drupal.
 *
 * If you have some functionality that's not intrinsic to the code under test,
 * you can add a special mock module that only gets installed during test
 * time. This allows you to implement APIs created by your module, or otherwise
 * exercise the code in question.
 *
 * This test case class is very similar to SimpleTestExampleTestCase. The main
 * difference is that we enable the testing_example_test module by providing
 * it in the $modules property. Then we can test for behaviors provided by that
 * module.
 *
 * @see SimpleTestExampleTestCase
 *
 * @ingroup testing_example
 *
 * SimpleTest uses group annotations to help you organize your tests.
 *
 * @group testing_example
 * @group examples
 */
class SimpleTestExampleMockModuleTest extends WebTestBase {
    
    /**
     * Our module dependencies.
     *
     * In Drupal 8's SimpleTest, we declare module dependencies in a public
     * static property called $modules.
     *
     * @var array
     */
    public static $modules = [
        'testing_example',
        'testing_example_test',
    ];
    
    /**
     * Test modifications made by our mock module.
     *
     * We create a simpletest_example node and then see if our submodule
     * operated on it.
     */
    public function testSimpleTestExampleMockModule() {
        // Create a user.
        $test_user = $this->drupalCreateUser([
            'access content',
        ]);
        // Log them in.
        $this->drupalLogin($test_user);
        // Set up some content.
        $settings = [
            'type' => 'testing_example',
            'title' => $this->randomMachineName(32),
        ];
        // Create the content node.
        $node = $this->drupalCreateNode($settings);
        // View the node.
        $this->drupalGet('node/' . $node->id());
        // Check that our module did it's thing.
        $this->assertText('The test module did its thing.', 'Found evidence of test module.');
    }

}