InstallProfileDependenciesTest.php

<?php

namespace Drupal\FunctionalTests\Installer;

use Drupal\Core\Extension\ModuleUninstallValidatorException;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests that an install profile can require modules.
 *
 * @group Installer
 */
class InstallProfileDependenciesTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected $profile = 'testing_install_profile_dependencies';
    
    /**
     * Tests that an install profile can require modules.
     */
    public function testUninstallingModules() {
        $user = $this->drupalCreateUser([
            'administer modules',
        ]);
        $this->drupalLogin($user);
        $this->drupalGet('admin/modules/uninstall');
        $this->assertSession()
            ->fieldDisabled('uninstall[dblog]');
        $this->getSession()
            ->getPage()
            ->checkField('uninstall[ban]');
        $this->click('#edit-submit');
        // Click the confirm button.
        $this->click('#edit-submit');
        $this->assertSession()
            ->responseContains('The selected modules have been uninstalled.');
        // We've uninstalled a module therefore we need to rebuild the container in
        // the test runner.
        $this->rebuildContainer();
        $this->assertFalse($this->container
            ->get('module_handler')
            ->moduleExists('ban'));
        try {
            $this->container
                ->get('module_installer')
                ->uninstall([
                'dblog',
            ]);
            $this->fail('Uninstalled dblog module.');
        } catch (ModuleUninstallValidatorException $e) {
            $this->assertStringContainsString('The Testing install profile dependencies module is required', $e->getMessage());
        }
    }

}