--- /dev/null
+<?php
+
+namespace Drupal\FunctionalTests\Installer;
+
+use Drupal\Core\Database\Database;
+
+/**
+ * Tests the installer with database errors.
+ *
+ * @group Installer
+ */
+class InstallerDatabaseErrorMessagesTest extends InstallerTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUpSettings() {
+ // We are creating a table here to force an error in the installer because
+ // it will try and create the drupal_install_test table as this is part of
+ // the standard database tests performed by the installer in
+ // Drupal\Core\Database\Install\Tasks.
+ Database::getConnection('default')->query('CREATE TABLE {drupal_install_test} (id int NULL)');
+ parent::setUpSettings();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUpSite() {
+ // This step should not appear as we had a failure on the settings screen.
+ }
+
+ /**
+ * Verifies that the error message in the settings step is correct.
+ */
+ public function testSetUpSettingsErrorMessage() {
+ $this->assertRaw('<ul><li>Failed to <strong>CREATE</strong> a test table');
+ }
+
+}