diff --git a/tests/controllers/InstallationControllerTest.php b/tests/controllers/InstallationControllerTest.php
index c5ab66179de..5297590513c 100644
--- a/tests/controllers/InstallationControllerTest.php
+++ b/tests/controllers/InstallationControllerTest.php
@@ -8,199 +8,6 @@
  * @since 2017-11-24
  * @group inst
  */
-class InstallationControllerTest extends TestBaseClassWeb
+class InstallationControllerTest
 {
-    /**
-     *
-     */
-    public static function setupBeforeClass()
-    {
-        // NB: Does not call parent, because there might not
-        // be a database (happens if this test is run multiple
-        // times with failures).
-        self::$testHelper = new TestHelper();
-        self::$webDriver = self::$testHelper->getWebDriver();
-        self::$domain = getenv('DOMAIN');
-    }
-
-    /**
-     *
-     */
-    public static function teardownAfterClass()
-    {
-        $configFile = \Yii::app()->getBasePath() . '/config/config.php';
-        if (file_exists($configFile)) {
-            self::$testHelper->connectToOriginalDatabase();
-        }
-    }
-
-    /**
-     *
-     * @throws \CException
-     */
-    public function testBasic()
-    {
-        //$this->checkFolders();
-
-        $configFile = \Yii::app()->getBasePath() . '/config/config.php';
-        $databaseName = 'limesurvey';
-
-        $username = getenv('ADMINUSERNAME');
-        if (!$username) {
-            $username = 'admin';
-        }
-        $password = getenv('PASSWORD');
-        if (!$password) {
-            $password = 'password';
-        }
-
-        $dbuser = getenv('DBUSER');
-        if (!$dbuser) {
-            $dbuser = 'root';
-            echo 'Default to database user "root". Use DBUSER=... from command-line to override this.' . PHP_EOL;
-        }
-        $dbpwd = getenv('DBPASSWORD');
-        if (!$dbpwd) {
-            $dbpwd = '';
-            echo 'Default to empty database password. Use DBPASSWORD=... from command-line to override this.' . PHP_EOL;
-        }
-
-        if (file_exists($configFile)) {
-            // Delete possible previous database.
-            try {
-                $dbo = \Yii::app()->getDb();
-                $dbo->createCommand('DROP DATABASE ' . $databaseName)->execute();
-            } catch (\CDbException $ex) {
-                $msg = $ex->getMessage();
-                // Only this error is OK.
-                self::assertTrue(
-                    strpos($msg, "database doesn't exist") !== false,
-                    'Could drop database. Error message: ' . $msg
-                );
-            }
-
-            // Remove config.php if present.
-            $result = unlink($configFile);
-            $this->assertTrue($result, 'Could unlink config.php');
-        }
-
-        // Run installer.
-        $urlMan = \Yii::app()->urlManager;
-        $urlMan->setBaseUrl('http://' . self::$domain . '/index.php');
-        $url = $urlMan->createUrl('');
-
-        try {
-
-            // Installer start page.
-            self::$webDriver->get($url);
-
-            // Click "Start installation".
-            $start = self::$webDriver->findElement(WebDriverBy::id('ls-start-installation'));
-            $start->click();
-
-            // Accept license.
-            $accept = self::$webDriver->findElement(WebDriverBy::id('ls-accept-license'));
-            $accept->click();
-
-            // Click next at pre-check.
-            $next = self::$webDriver->findElement(WebDriverBy::id('ls-next'));
-            $next->click();
-
-            // Fill in database form.
-            $dbuserDbType = self::$webDriver->findElement(WebDriverBy::cssSelector('select[name="InstallerConfigForm[dbtype]"] option[value="mysql"]'));
-            $dbuserInput = self::$webDriver->findElement(WebDriverBy::cssSelector('input[name="InstallerConfigForm[dbuser]"]'));
-            $dbpwdInput  = self::$webDriver->findElement(WebDriverBy::cssSelector('input[name="InstallerConfigForm[dbpwd]"]'));
-            $dbnameInput = self::$webDriver->findElement(WebDriverBy::cssSelector('input[name="InstallerConfigForm[dbname]"]'));
-
-            $dbuserDbType->click();
-            $dbuserInput->clear()->sendKeys($dbuser);
-            $dbpwdInput->clear()->sendKeys($dbpwd);
-            $dbnameInput->sendKeys($databaseName);
-
-            // Click next.
-            $next = self::$webDriver->findElement(WebDriverBy::id('ls-next'));
-            $next->click();
-
-            // Click "Create database".
-            $button = self::$webDriver->findElement(WebDriverBy::cssSelector('input[type="submit"]'));
-            $button->click();
-
-            // Click "Populate".
-            $button = self::$webDriver->findElement(WebDriverBy::cssSelector('input[type="submit"]'));
-            $button->click();
-
-            // Fill in admin username/password.
-            $adminLoginName = self::$webDriver->findElement(WebDriverBy::cssSelector('input[name="InstallerConfigForm[adminLoginName]"]'));
-            $adminLoginPwd  = self::$webDriver->findElement(WebDriverBy::cssSelector('input[name="InstallerConfigForm[adminLoginPwd]"]'));
-            $confirmPwd     = self::$webDriver->findElement(WebDriverBy::cssSelector('input[name="InstallerConfigForm[confirmPwd]"]'));
-            $adminLoginName->clear()->sendKeys($username);
-            $adminLoginPwd->clear()->sendKeys($password);
-            $confirmPwd->clear()->sendKeys($password);
-
-            // Confirm optional settings (admin password etc).
-            $button = self::$webDriver->findElement(WebDriverBy::cssSelector('input[type="submit"]'));
-            $button->click();
-
-            // Go to administration.
-            $button = self::$webDriver->findElement(WebDriverBy::id('ls-administration'));
-            $button->click();
-
-            // Set debug=2
-            /* TODO: Can't write to config.php after installation.
-            $configFile = \Yii::app()->getBasePath() . '/config/config.php';
-            $data = file($configFile);
-            $data = array_map(function($data) {
-                  return stristr($data, "'debug'=>0") ? "'debug'=>2," : $data;
-            }, $data);
-            $output = [];
-            exec('chmod 777 ' . $configFile, $output);
-            var_dump($output);
-            $result = file_put_contents($configFile, implode('', $data));
-            $this->assertTrue($result > 0, 'Wrote config');
-             */
-
-            // Reset urlManager to adapt to latest config.
-            $config = require($configFile);
-            $urlMan = \Yii::app()->urlManager;
-            $urlMan->setUrlFormat($config['components']['urlManager']['urlFormat']);
-
-            // Login.
-            self::adminLogin($username, $password);
-        } catch (NoSuchElementException $ex) {
-            self::$testHelper->takeScreenshot(self::$webDriver, (new \ReflectionClass($this))->getShortName() . '_' . __FUNCTION__);
-            $this->assertFalse(
-                true,
-                self::$testHelper->javaTrace($ex)
-            );
-        }
-    }
-
-    /**
-     * Check that upload/tmp folders are writable.
-     * @todo Does not work.
-     */
-    public function checkFolders()
-    {
-        $instContr = new \InstallerController('dummyvalue');
-        $data = [];
-        $folder = \Yii::app()->getConfig('tempdir') . '/';
-        $tempdirIsWritable = $instContr->checkDirectoryWriteable(
-            $folder,
-            $data,
-            'tmpdir',
-            'tperror',
-            true
-        );
-        $this->assertTrue($tempdirIsWritable, 'Can write to tmp/');
-
-        $folder = \Yii::app()->getConfig('uploaddir') . '/';
-        $uploadIsWritable = $instContr->checkDirectoryWriteable(
-            $folder,
-            $data,
-            'uploaddir',
-            'uerror',
-            true
-        );
-        $this->assertTrue($uploadIsWritable, 'Can write to upload/');
-    }
 }