--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\Module;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests the installation of modules.
+ *
+ * @group Module
+ */
+class ExperimentalModuleTest extends BrowserTestBase {
+
+
+ /**
+ * The admin user.
+ *
+ * @var \Drupal\user\UserInterface
+ */
+ protected $adminUser;
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->adminUser = $this->drupalCreateUser(['access administration pages', 'administer modules']);
+ $this->drupalLogin($this->adminUser);
+ }
+
+ /**
+ * Tests installing experimental modules and dependencies in the UI.
+ */
+ public function testExperimentalConfirmForm() {
+
+ // First, test installing a non-experimental module with no dependencies.
+ // There should be no confirmation form and no experimental module warning.
+ $edit = [];
+ $edit["modules[test_page_test][enable]"] = TRUE;
+ $this->drupalPostForm('admin/modules', $edit, t('Install'));
+ $this->assertText('Module Test page has been enabled.');
+ $this->assertNoText('Experimental modules are provided for testing purposes only.');
+
+ // Uninstall the module.
+ \Drupal::service('module_installer')->uninstall(['test_page_test']);
+
+ // Next, test installing an experimental module with no dependencies.
+ // There should be a confirmation form with an experimental warning, but no
+ // list of dependencies.
+ $edit = [];
+ $edit["modules[experimental_module_test][enable]"] = TRUE;
+ $this->drupalPostForm('admin/modules', $edit, 'Install');
+
+ // The module should not be enabled and there should be a warning and a
+ // list of the experimental modules with only this one.
+ $this->assertNoText('Experimental Test has been enabled.');
+ $this->assertText('Experimental modules are provided for testing purposes only.');
+ $this->assertText('The following modules are experimental: Experimental Test');
+
+ // There should be no message about enabling dependencies.
+ $this->assertNoText('You must enable');
+
+ // Enable the module and confirm that it worked.
+ $this->drupalPostForm(NULL, [], 'Continue');
+ $this->assertText('Experimental Test has been enabled.');
+
+ // Uninstall the module.
+ \Drupal::service('module_installer')->uninstall(['experimental_module_test']);
+
+ // Test enabling a module that is not itself experimental, but that depends
+ // on an experimental module.
+ $edit = [];
+ $edit["modules[experimental_module_dependency_test][enable]"] = TRUE;
+ $this->drupalPostForm('admin/modules', $edit, 'Install');
+
+ // The module should not be enabled and there should be a warning and a
+ // list of the experimental modules with only this one.
+ $this->assertNoText('2 modules have been enabled: Experimental Dependency Test, Experimental Test');
+ $this->assertText('Experimental modules are provided for testing purposes only.');
+
+ $this->assertText('The following modules are experimental: Experimental Test');
+
+ // Ensure the non-experimental module is not listed as experimental.
+ $this->assertNoText('The following modules are experimental: Experimental Test, Experimental Dependency Test');
+ $this->assertNoText('The following modules are experimental: Experimental Dependency Test');
+
+ // There should be a message about enabling dependencies.
+ $this->assertText('You must enable the Experimental Test module to install Experimental Dependency Test');
+
+ // Enable the module and confirm that it worked.
+ $this->drupalPostForm(NULL, [], 'Continue');
+ $this->assertText('2 modules have been enabled: Experimental Dependency Test, Experimental Test');
+
+ // Uninstall the modules.
+ \Drupal::service('module_installer')->uninstall(['experimental_module_test', 'experimental_module_dependency_test']);
+
+ // Finally, check both the module and its experimental dependency. There is
+ // still a warning about experimental modules, but no message about
+ // dependencies, since the user specifically enabled the dependency.
+ $edit = [];
+ $edit["modules[experimental_module_test][enable]"] = TRUE;
+ $edit["modules[experimental_module_dependency_test][enable]"] = TRUE;
+ $this->drupalPostForm('admin/modules', $edit, 'Install');
+
+ // The module should not be enabled and there should be a warning and a
+ // list of the experimental modules with only this one.
+ $this->assertNoText('2 modules have been enabled: Experimental Dependency Test, Experimental Test');
+ $this->assertText('Experimental modules are provided for testing purposes only.');
+
+ $this->assertText('The following modules are experimental: Experimental Test');
+
+ // Ensure the non-experimental module is not listed as experimental.
+ $this->assertNoText('The following modules are experimental: Experimental Dependency Test, Experimental Test');
+ $this->assertNoText('The following modules are experimental: Experimental Dependency Test');
+
+ // There should be no message about enabling dependencies.
+ $this->assertNoText('You must enable');
+
+ // Enable the module and confirm that it worked.
+ $this->drupalPostForm(NULL, [], 'Continue');
+ $this->assertText('2 modules have been enabled: Experimental Dependency Test, Experimental Test');
+
+ // Try to enable an experimental module that can not be due to
+ // hook_requirements().
+ \Drupal::state()->set('experimental_module_requirements_test_requirements', TRUE);
+ $edit = [];
+ $edit["modules[experimental_module_requirements_test][enable]"] = TRUE;
+ $this->drupalPostForm('admin/modules', $edit, 'Install');
+ $this->assertUrl('admin/modules', [], 'If the module can not be installed we are not taken to the confirm form.');
+ $this->assertText('The Experimental Test Requirements module can not be installed.');
+ }
+
+}