--- /dev/null
+<?php
+
+namespace Drupal\FunctionalTests\Installer;
+
+use Drupal\Component\Utility\Crypt;
+
+/**
+ * Tests the installer when a config_directory set up but does not exist.
+ *
+ * @group Installer
+ */
+class InstallerConfigDirectorySetNoDirectoryTest extends InstallerTestBase {
+
+ /**
+ * The sync directory created during the install.
+ *
+ * @var string
+ */
+ protected $syncDirectory;
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function prepareEnvironment() {
+ parent::prepareEnvironment();
+ $this->syncDirectory = $this->publicFilesDirectory . '/config_' . Crypt::randomBytesBase64() . '/sync';
+ $this->settings['config_directories'][CONFIG_SYNC_DIRECTORY] = (object) [
+ 'value' => $this->syncDirectory,
+ 'required' => TRUE,
+ ];
+ // Other directories will be created too.
+ $this->settings['config_directories']['custom'] = (object) [
+ 'value' => $this->publicFilesDirectory . '/config_custom',
+ 'required' => TRUE,
+ ];
+ }
+
+ /**
+ * Verifies that installation succeeded.
+ */
+ public function testInstaller() {
+ $this->assertUrl('user/1');
+ $this->assertResponse(200);
+ $this->assertTrue(file_exists($this->syncDirectory) && is_dir($this->syncDirectory), "The directory {$this->syncDirectory} exists.");
+ $this->assertTrue(file_exists($this->publicFilesDirectory . '/config_custom') && is_dir($this->publicFilesDirectory . '/config_custom'), "The directory {$this->publicFilesDirectory}/custom_config exists.");
+ }
+
+}