--- /dev/null
+<?php
+
+namespace Drupal\FunctionalTests\Installer;
+
+use Drupal\Core\DrupalKernel;
+use Drupal\Core\Site\Settings;
+use Drupal\Core\Database\Database;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Tests install with existing settings.php and a mismatching install profile.
+ *
+ * @group Installer
+ * @group legacy
+ */
+class InstallerExistingSettingsMismatchProfileTest extends InstallerTestBase {
+
+ /**
+ * {@inheritdoc}
+ *
+ * Configures a preexisting settings.php file without an install_profile
+ * setting before invoking the interactive installer.
+ */
+ protected function prepareEnvironment() {
+ parent::prepareEnvironment();
+ // Pre-configure hash salt.
+ // Any string is valid, so simply use the class name of this test.
+ $this->settings['settings']['hash_salt'] = (object) [
+ 'value' => __CLASS__,
+ 'required' => TRUE,
+ ];
+
+ // Pre-configure database credentials.
+ $connection_info = Database::getConnectionInfo();
+ unset($connection_info['default']['pdo']);
+ unset($connection_info['default']['init_commands']);
+
+ $this->settings['databases']['default'] = (object) [
+ 'value' => $connection_info,
+ 'required' => TRUE,
+ ];
+
+ // During interactive install we'll change this to a different profile and
+ // this test will ensure that the new value is written to settings.php.
+ $this->settings['settings']['install_profile'] = (object) [
+ 'value' => 'minimal',
+ 'required' => TRUE,
+ ];
+
+ // Pre-configure config directories.
+ $this->settings['config_directories'] = [
+ CONFIG_SYNC_DIRECTORY => (object) [
+ 'value' => DrupalKernel::findSitePath(Request::createFromGlobals()) . '/files/config_sync',
+ 'required' => TRUE,
+ ],
+ ];
+ mkdir($this->settings['config_directories'][CONFIG_SYNC_DIRECTORY]->value, 0777, TRUE);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function visitInstaller() {
+ // Provide profile and language in query string to skip these pages.
+ $this->drupalGet($GLOBALS['base_url'] . '/core/install.php?langcode=en&profile=testing');
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUpLanguage() {
+ // This step is skipped, because there is a langcode as a query param.
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUpProfile() {
+ // This step is skipped, because there is a profile as a query param.
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUpSettings() {
+ // This step should not appear, since settings.php is fully configured
+ // already.
+ }
+
+ /**
+ * Verifies that installation succeeded.
+ *
+ * @expectedDeprecation To access the install profile in Drupal 8 use \Drupal::installProfile() or inject the install_profile container parameter into your service. See https://www.drupal.org/node/2538996
+ */
+ public function testInstaller() {
+ $this->assertUrl('user/1');
+ $this->assertResponse(200);
+ $this->assertEqual('testing', \Drupal::installProfile());
+ $this->assertEqual('testing', Settings::get('install_profile'), 'Profile was correctly changed to testing in Settings.php');
+ }
+
+}