function InstallUninstallTest::testInstallUninstall

Tests that a fixed set of modules can be installed and uninstalled.

File

core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php, line 35

Class

InstallUninstallTest

Install/uninstall core module and confirm table creation/deletion.

Namespace

Code

public function testInstallUninstall() {
    // Set a variable so that the hook implementations in system_test.module
    // will display messages via
    // \Drupal\Core\Messenger\MessengerInterface::addStatus().
    $this->container
        ->get('state')
        ->set('system_test.verbose_module_hooks', TRUE);
    // Install and uninstall module_test to ensure hook_preinstall_module and
    // hook_preuninstall_module are fired as expected.
    $this->container
        ->get('module_installer')
        ->install([
        'module_test',
    ]);
    $this->assertEqual($this->container
        ->get('state')
        ->get('system_test_preinstall_module'), 'module_test');
    $this->container
        ->get('module_installer')
        ->uninstall([
        'module_test',
    ]);
    $this->assertEqual($this->container
        ->get('state')
        ->get('system_test_preuninstall_module'), 'module_test');
    $this->resetAll();
    $all_modules = $this->container
        ->get('extension.list.module')
        ->getList();
    // Test help on required modules, but do not test uninstalling.
    $required_modules = array_filter($all_modules, function ($module) {
        if (!empty($module->info['required']) || $module->status == TRUE) {
            if ($module->info['package'] != 'Testing' && empty($module->info['hidden'])) {
                return TRUE;
            }
        }
        return FALSE;
    });
    $required_modules['help'] = $all_modules['help'];
    // Test uninstalling without hidden, required, and already enabled modules.
    $all_modules = array_filter($all_modules, function ($module) {
        if (!empty($module->info['hidden']) || !empty($module->info['required']) || $module->status == TRUE || $module->info['package'] == 'Testing') {
            return FALSE;
        }
        return TRUE;
    });
    // Install the Help module, and verify it installed successfully.
    unset($all_modules['help']);
    $this->assertModuleNotInstalled('help');
    $edit = [];
    $edit["modules[help][enable]"] = TRUE;
    $this->drupalPostForm('admin/modules', $edit, t('Install'));
    $this->assertText('has been enabled', 'Modules status has been updated.');
    $this->assertText(t('hook_modules_installed fired for help'));
    $this->assertModuleSuccessfullyInstalled('help');
    // Test help for the required modules.
    foreach ($required_modules as $name => $module) {
        $this->assertHelp($name, $module->info['name']);
    }
    // Go through each module in the list and try to install and uninstall
    // it with its dependencies.
    foreach ($all_modules as $name => $module) {
        $was_installed_list = \Drupal::moduleHandler()->getModuleList();
        // Start a list of modules that we expect to be installed this time.
        $modules_to_install = [
            $name,
        ];
        foreach (array_keys($module->requires) as $dependency) {
            if (isset($all_modules[$dependency])) {
                $modules_to_install[] = $dependency;
            }
        }
        // Check that each module is not yet enabled and does not have any
        // database tables yet.
        foreach ($modules_to_install as $module_to_install) {
            $this->assertModuleNotInstalled($module_to_install);
        }
        // Install the module.
        $edit = [];
        $package = $module->info['package'];
        $edit['modules[' . $name . '][enable]'] = TRUE;
        $this->drupalPostForm('admin/modules', $edit, t('Install'));
        // Handle experimental modules, which require a confirmation screen.
        if ($package == 'Core (Experimental)') {
            $this->assertText('Are you sure you wish to enable experimental modules?');
            if (count($modules_to_install) > 1) {
                // When there are experimental modules, needed dependencies do not
                // result in the same page title, but there will be expected text
                // indicating they need to be enabled.
                $this->assertText('You must enable');
            }
            $this->drupalPostForm(NULL, [], t('Continue'));
        }
        elseif (count($modules_to_install) > 1) {
            // Verify that we are on the correct form and that the expected text
            // about enabling dependencies appears.
            $this->assertText('Some required modules must be enabled');
            $this->assertText('You must enable');
            $this->drupalPostForm(NULL, [], t('Continue'));
        }
        // List the module display names to check the confirmation message.
        $module_names = [];
        foreach ($modules_to_install as $module_to_install) {
            $module_names[] = $all_modules[$module_to_install]->info['name'];
        }
        $expected_text = \Drupal::translation()->formatPlural(count($module_names), 'Module @name has been enabled.', '@count modules have been enabled: @names.', [
            '@name' => $module_names[0],
            '@names' => implode(', ', $module_names),
        ]);
        $this->assertText($expected_text, 'Modules status has been updated.');
        // Check that hook_modules_installed() was invoked with the expected list
        // of modules, that each module's database tables now exist, and that
        // appropriate messages appear in the logs.
        foreach ($modules_to_install as $module_to_install) {
            $this->assertText(t('hook_modules_installed fired for @module', [
                '@module' => $module_to_install,
            ]));
            $this->assertLogMessage('system', "%module module installed.", [
                '%module' => $module_to_install,
            ], RfcLogLevel::INFO);
            $this->assertInstallModuleUpdates($module_to_install);
            $this->assertModuleSuccessfullyInstalled($module_to_install);
        }
        // Verify the help page.
        $this->assertHelp($name, $module->info['name']);
        // Uninstall the original module, plus everything else that was installed
        // with it.
        if ($name == 'forum') {
            // Forum has an extra step to be able to uninstall it.
            $this->preUninstallForum();
        }
        // Delete all workspaces before uninstall.
        if ($name == 'workspaces') {
            $workspaces = Workspace::loadMultiple();
            \Drupal::entityTypeManager()->getStorage('workspace')
                ->delete($workspaces);
        }
        $now_installed_list = \Drupal::moduleHandler()->getModuleList();
        $added_modules = array_diff(array_keys($now_installed_list), array_keys($was_installed_list));
        while ($added_modules) {
            $initial_count = count($added_modules);
            foreach ($added_modules as $to_uninstall) {
                // See if we can currently uninstall this module (if its dependencies
                // have been uninstalled), and do so if we can.
                $this->drupalGet('admin/modules/uninstall');
                $field_name = "uninstall[{$to_uninstall}]";
                $has_checkbox = $this->xpath('//input[@type="checkbox" and @name="' . $field_name . '"]');
                $disabled = $this->xpath('//input[@type="checkbox" and @name="' . $field_name . '" and @disabled="disabled"]');
                if (!empty($has_checkbox) && empty($disabled)) {
                    // This one is eligible for being uninstalled.
                    $package = $all_modules[$to_uninstall]->info['package'];
                    $this->assertSuccessfulUninstall($to_uninstall, $package);
                    $added_modules = array_diff($added_modules, [
                        $to_uninstall,
                    ]);
                }
            }
            // If we were not able to find a module to uninstall, fail and exit the
            // loop.
            $final_count = count($added_modules);
            if ($initial_count == $final_count) {
                $this->fail('Remaining modules could not be uninstalled for ' . $name);
                break;
            }
        }
    }
    // Uninstall the help module and put it back into the list of modules.
    $all_modules['help'] = $required_modules['help'];
    $this->assertSuccessfulUninstall('help', $required_modules['help']->info['package']);
    // Now that all modules have been tested, go back and try to enable them
    // all again at once. This tests two things:
    // - That each module can be successfully enabled again after being
    //   uninstalled.
    // - That enabling more than one module at the same time does not lead to
    //   any errors.
    $edit = [];
    $experimental = FALSE;
    foreach ($all_modules as $name => $module) {
        $edit['modules[' . $name . '][enable]'] = TRUE;
        // Track whether there is at least one experimental module.
        if ($module->info['package'] == 'Core (Experimental)') {
            $experimental = TRUE;
        }
    }
    $this->drupalPostForm('admin/modules', $edit, t('Install'));
    // If there are experimental modules, click the confirm form.
    if ($experimental) {
        $this->assertText('Are you sure you wish to enable experimental modules?');
        $this->drupalPostForm(NULL, [], t('Continue'));
    }
    // The string tested here is translatable but we are only using a part of it
    // so using a translated string is wrong. Doing so would create a new string
    // to translate.
    $this->assertText(new FormattableMarkup('@count modules have been enabled: ', [
        '@count' => count($all_modules),
    ]), 'Modules status has been updated.');
}