diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index f0484a106..0b24d874d 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -15,6 +15,7 @@
         <whitelist>
             <directory>./</directory>
             <exclude>
+                <directory>src/Network/FTP</directory>
                 <directory>src/Resources</directory>
                 <directory>tests</directory>
                 <directory>vendor</directory>
diff --git a/tests/Network/FTP/FTPClientTest.php b/tests/Network/FTP/FTPClientTest.php
deleted file mode 100644
index 7c86f9177..000000000
--- a/tests/Network/FTP/FTPClientTest.php
+++ /dev/null
@@ -1,353 +0,0 @@
-<?php
-
-/**
- * This file is part of the core-library package.
- *
- * (c) 2018 WEBEWEB
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace WBW\Library\Core\Tests\Network\FTP;
-
-use Exception;
-use WBW\Library\Core\Exception\Network\FTPException;
-use WBW\Library\Core\Network\FTP\FTPClient;
-use WBW\Library\Core\Security\Authenticator;
-use WBW\Library\Core\Security\PasswordAuthentication;
-use WBW\Library\Core\Tests\AbstractFrameworkTestCase;
-
-/**
- * FTP client test.
- *
- * @author webeweb <https://github.com/webeweb/>
- * @package WBW\Library\Core\Tests\Network\FTP
- * @final
- */
-final class FTPClientTest extends AbstractFrameworkTestCase {
-
-    /**
-     * Test directory.
-     *
-     * @var string
-     */
-    const TEST_DIR = "core-library";
-
-    /**
-     * Test FTP.
-     *
-     * @var string
-     */
-    const TEST_FTP = "ftp://dlpuser@dlptest.com:e73jzTRTNqCN9PYAAjjn@ftp.dlptest.com:21";
-
-    /**
-     * Authenticator (read-only).
-     *
-     * @var Authenticator
-     */
-    private $authenticatorR;
-
-    /**
-     * Authenticator (read-write).
-     *
-     * @var Authenticator
-     */
-    private $authenticatorW;
-
-    /**
-     * {@inheritdoc}
-     */
-    protected function setUp() {
-        parent::setUp();
-
-        // Set the Password authentication mocks.
-        $passwordAuthenticationR = new PasswordAuthentication("anonymous", "guest");
-        $passwordAuthenticationW = new PasswordAuthentication("dlpuser@dlptest.com", "e73jzTRTNqCN9PYAAjjn");
-
-        // Set the Authenticator mocks.
-        $this->authenticatorR = new Authenticator("speedtest.tele2.net", $passwordAuthenticationR);
-        $this->authenticatorW = new Authenticator("ftp.dlptest.com", $passwordAuthenticationW);
-    }
-
-    /**
-     * Tests the __construct() method.
-     *
-     * @return void
-     */
-    public function testConstruct() {
-
-        $obj = new FTPClient($this->authenticatorW);
-
-        $this->assertSame($this->authenticatorW, $obj->getAuthenticator());
-    }
-
-    /**
-     * Tests the connect() method.
-     *
-     * @return void
-     */
-    public function testConnect() {
-
-        $obj = new FTPClient($this->authenticatorR);
-
-        $this->assertSame($obj, $obj->connect());
-    }
-
-    /**
-     * Tests the connect() method.
-     *
-     * @return void
-     */
-    public function testConnectWithFTPException() {
-
-        $obj = new FTPClient($this->authenticatorR);
-
-        try {
-
-            $obj->getAuthenticator()->setHost("github.com");
-            $obj->connect(2); // Set a low timeout.
-        } catch (Exception $ex) {
-
-            $this->assertInstanceOf(FTPException::class, $ex);
-            $this->assertEquals("ftp://anonymous:guest@github.com:21 connection failed", $ex->getMessage());
-        }
-    }
-
-    /**
-     * Tests the login() method.
-     *
-     * @return void
-     * @depends testConnect
-     */
-    public function testLogin() {
-
-        $obj = new FTPClient($this->authenticatorR);
-        $obj->connect();
-
-        $this->assertSame($obj, $obj->login());
-    }
-
-    /**
-     * Tests the login() method.
-     *
-     * @return void
-     * @depends testConnect
-     */
-    public function testLoginWithFTPException() {
-
-        $obj = new FTPClient($this->authenticatorR);
-        $obj->connect();
-
-        try {
-
-            $obj->getAuthenticator()->getPasswordAuthentication()->setUsername("exception");
-            $obj->login();
-        } catch (Exception $ex) {
-
-            $this->assertInstanceOf(FTPException::class, $ex);
-            $this->assertEquals("ftp://exception:guest@speedtest.tele2.net:21 login failed", $ex->getMessage());
-        }
-    }
-
-    /**
-     * Tests the mkdir() method.
-     *
-     * @return void
-     * @depends testLogin
-     */
-    public function testMkdir() {
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        $this->assertSame($obj, $obj->mkdir(self::TEST_DIR));
-    }
-
-    /**
-     * Tests the mkdir() method.
-     *
-     * @return void
-     * @depends testMkdir
-     */
-    public function testMkdirWithFTPException() {
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        try {
-
-            $obj->mkdir(self::TEST_DIR);
-        } catch (Exception $ex) {
-
-            $this->assertInstanceOf(FTPException::class, $ex);
-            $this->assertEquals(self::TEST_FTP . " mkdir " . self::TEST_DIR . " failed", $ex->getMessage());
-        }
-    }
-
-    /**
-     * Tests the put() method.
-     *
-     * @return void
-     * @depends testMkdir
-     */
-    public function testPut() {
-
-        $local  = getcwd() . "/LICENSE";
-        $remote = self::TEST_DIR . "/LICENSE.txt";
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-        $obj->pasv(true);
-
-        $this->assertSame($obj, $obj->put($local, $remote));
-    }
-
-    /**
-     * Tests the rename() method.
-     *
-     * @return void
-     * @depends testPut
-     */
-    public function testRename() {
-
-        $remote = self::TEST_DIR . "/LICENSE.txt";
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        $this->assertSame($obj, $obj->rename($remote, self::TEST_DIR . "/LICENSE.md"));
-    }
-
-    /**
-     * Tests the rename() method.
-     *
-     * @return void
-     * @depends testRename
-     */
-    public function testRenameWithFTPException() {
-
-        $remote = self::TEST_DIR . "/LICENSE.txt";
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        try {
-
-            $obj->rename($remote, self::TEST_DIR . "/LICENSE.md");
-        } catch (Exception $ex) {
-
-            $this->assertInstanceOf(FTPException::class, $ex);
-            $this->assertEquals(self::TEST_FTP . " rename " . $remote . " into " . self::TEST_DIR . "/LICENSE.md failed", $ex->getMessage());
-        }
-    }
-
-    /**
-     * Tests the rename() method.
-     *
-     * @return void
-     * @depends testRename
-     */
-    public function testDelete() {
-
-        $remote = self::TEST_DIR . "/LICENSE.md";
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        $this->assertSame($obj, $obj->delete($remote));
-    }
-
-    /**
-     * Tests the rename() method.
-     *
-     * @return void
-     * @depends testDelete
-     */
-    public function testDeleteWithException() {
-
-        $remote = self::TEST_DIR . "/LICENSE.md";
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        try {
-
-            $this->assertSame($obj, $obj->delete($remote));
-        } catch (Exception $ex) {
-
-            $this->assertInstanceOf(FTPException::class, $ex);
-            $this->assertEquals(self::TEST_FTP . " delete " . self::TEST_DIR . "/LICENSE.md failed", $ex->getMessage());
-        }
-    }
-
-    /**
-     * Tests the rmdir() method.
-     *
-     * @return void
-     * @depends testDelete
-     */
-    public function testRmdir() {
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        $this->assertSame($obj, $obj->rmdir(self::TEST_DIR));
-    }
-
-    /**
-     * Tests the rmdir() method.
-     *
-     * @return void
-     * @depends testRmdir
-     */
-    public function testRmdirWithFTPException() {
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-        $obj->login();
-
-        try {
-
-            $this->assertSame($obj, $obj->rmdir(self::TEST_DIR));
-        } catch (Exception $ex) {
-
-            $this->assertInstanceOf(FTPException::class, $ex);
-            $this->assertEquals(self::TEST_FTP . " rmdir " . self::TEST_DIR . " failed", $ex->getMessage());
-        }
-    }
-
-    /**
-     * Tests the close() method.
-     *
-     * @return void
-     * @depends testConnect
-     */
-    public function testClose() {
-
-        $obj = new FTPClient($this->authenticatorW);
-        $obj->connect();
-
-        // ===
-        $this->assertSame($obj, $obj->close());
-
-        // ===
-        try {
-
-            $this->assertSame($obj, $obj->close());
-        } catch (Exception $ex) {
-
-            $this->assertInstanceOf(FTPException::class, $ex);
-            $this->assertEquals(self::TEST_FTP . " close failed", $ex->getMessage());
-        }
-    }
-
-}