Test credentials as string without password (#20)

src/Credentials.php

@@ -138,8 +138,14 @@ public function toString(): string
             $this->dbName
         );
 
+        if (strpos($asString, ':@') === 0) {
+            return rawurldecode(
+                substr($asString, 2)
+            );
+        }
+
         return rawurldecode(
-            str_replace(':@', '', $asString)
+            str_replace(':@', '@', $asString)
         );
     }
 }

tests/CredentialsTest.php

@@ -0,0 +1,55 @@
+<?php
+
+/*
+ * This file is part of the DriftPHP Project
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * Feel free to edit as you please, and have fun.
+ *
+ * @author David Llop <[email protected]>
+ */
+
+declare(strict_types=1);
+
+namespace Drift\DBAL\Tests;
+
+use Drift\DBAL\Credentials;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Class ConnectionTest.
+ */
+class CredentialsTest extends TestCase
+{
+    /**
+     * Test that credentials works as expected with all the fields filled.
+     */
+    public function testCredentialsCanBeConvertedToString()
+    {
+        $credentials = new Credentials('127.0.0.1', '3306', 'user', 'password', 'database');
+
+        $this->assertEquals('user:[email protected]:3306/database', $credentials->toString());
+    }
+
+    /**
+     * Test that credentials works as expected without login information.
+     */
+    public function testCredentialsCanBeConvertedToStringWithoutLogin()
+    {
+        $credentials = new Credentials('127.0.0.1', '3306', '', '', 'database');
+
+        $this->assertEquals('127.0.0.1:3306/database', $credentials->toString());
+    }
+
+    /**
+     * Test that credentials works as expected without password.
+     */
+    public function testCredentialsCanBeConvertedToStringWithoutPassword()
+    {
+        $credentials = new Credentials('127.0.0.1', '3306', 'user', '', 'database');
+
+        $this->assertEquals('[email protected]:3306/database', $credentials->toString());
+    }
+}