diff --git a/phpunit.xml b/phpunit.xml
index 1c4a840..644e542 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -16,4 +16,11 @@
             <directory suffix=".php">./tests/</directory>
         </testsuite>
     </testsuites>
+    <php>
+        <env name="ROS_HOST" value="127.0.0.1"/>
+        <env name="ROS_USER" value="admin"/>
+        <env name="ROS_PASS" value="admin"/>
+        <env name="ROS_PORT_MODERN" value="18728"/>
+        <env name="ROS_PORT_LEGACY" value="28728"/>
+    </php>
 </phpunit>
diff --git a/tests/APIConnectorTest.php b/tests/APIConnectorTest.php
index 72c0c43..b4784fe 100644
--- a/tests/APIConnectorTest.php
+++ b/tests/APIConnectorTest.php
@@ -38,7 +38,7 @@ class APIConnectorTest extends TestCase
     {
         return [
             [new ResourceStream(fopen(__FILE__, 'rb')),], // Myself, sure I exists
-            [new ResourceStream(fsockopen('tcp://127.0.0.1', 18728)),], // Socket
+            [new ResourceStream(fsockopen('tcp://' . getenv('ROS_HOST'), getenv('ROS_PORT_MODERN'))),], // Socket
             [new ResourceStream(STDIN), false], // Try it, but do not close STDIN please !!!
             [new StringStream('Hello World !!!')], // Try it, but do not close STDIN please !!!
             [new StringStream('')], // Try it, but do not close STDIN please !!!
diff --git a/tests/ClientTest.php b/tests/ClientTest.php
index a899a5d..3203b23 100644
--- a/tests/ClientTest.php
+++ b/tests/ClientTest.php
@@ -16,7 +16,7 @@ class ClientTest extends TestCase
     {
         try {
             $config = new Config();
-            $config->set('user', 'admin')->set('pass', 'admin')->set('host', '127.0.0.1');
+            $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))->set('host', getenv('ROS_HOST'));
             $obj = new Client($config);
             $this->assertInternalType('object', $obj);
             $socket = $obj->getSocket();
@@ -30,9 +30,9 @@ class ClientTest extends TestCase
     {
         try {
             $config = new Config([
-                'user' => 'admin',
-                'pass' => 'admin',
-                'host' => '127.0.0.1'
+                'user' => getenv('ROS_USER'),
+                'pass' => getenv('ROS_PASS'),
+                'host' => getenv('ROS_HOST')
             ]);
             $obj    = new Client($config);
             $this->assertInternalType('object', $obj);
@@ -47,9 +47,9 @@ class ClientTest extends TestCase
     {
         try {
             $obj = new Client([
-                'user' => 'admin',
-                'pass' => 'admin',
-                'host' => '127.0.0.1'
+                'user' => getenv('ROS_USER'),
+                'pass' => getenv('ROS_PASS'),
+                'host' => getenv('ROS_HOST')
             ]);
             $this->assertInternalType('object', $obj);
             $socket = $obj->getSocket();
@@ -64,8 +64,8 @@ class ClientTest extends TestCase
         $this->expectException(ConfigException::class);
 
         $obj = new Client([
-            'user' => 'admin',
-            'pass' => 'admin',
+            'user' => getenv('ROS_USER'),
+            'pass' => getenv('ROS_PASS'),
         ]);
     }
 
@@ -73,8 +73,8 @@ class ClientTest extends TestCase
     {
         try {
             $config = new Config();
-            $config->set('user', 'admin')->set('pass', 'admin')
-                ->set('host', '127.0.0.1')->set('port', 18728)->set('legacy', true);
+            $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))
+                ->set('host', getenv('ROS_HOST'))->set('port', (int) getenv('ROS_PORT_MODERN'))->set('legacy', true);
             $obj = new Client($config);
             $this->assertInternalType('object', $obj);
         } catch (\Exception $e) {
@@ -84,15 +84,15 @@ class ClientTest extends TestCase
 
     /**
      * Test non legacy connection on legacy router (pre 6.43)
-     * 
+     *
      * login() method recognise legacy router response and swap to legacy mode
-     */ 
+     */
     public function test__constructLegacy2()
     {
         try {
             $config = new Config();
-            $config->set('user', 'admin')->set('pass', 'admin')
-                ->set('host', '127.0.0.1')->set('port', 18728)->set('legacy', false);
+            $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))
+                ->set('host', getenv('ROS_HOST'))->set('port', (int) getenv('ROS_PORT_MODERN'))->set('legacy', false);
             $obj = new Client($config);
             $this->assertInternalType('object', $obj);
         } catch (\Exception $e) {
@@ -106,7 +106,7 @@ class ClientTest extends TestCase
         $this->expectException(ClientException::class);
 
         $config = (new Config())->set('attempts', 2);
-        $config->set('user', 'admin')->set('pass', 'admin2')->set('host', '127.0.0.1');
+        $config->set('user', getenv('ROS_USER'))->set('pass', 'admin2')->set('host', getenv('ROS_HOST'));
         $obj = new Client($config);
     }
 
@@ -118,14 +118,14 @@ class ClientTest extends TestCase
         $this->expectException(ClientException::class);
 
         $config = new Config();
-        $config->set('user', 'admin')->set('pass', 'admin')->set('host', '127.0.0.1')->set('port', 11111);
+        $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))->set('host', getenv('ROS_HOST'))->set('port', 11111);
         $obj = new Client($config);
     }
 
     public function testWriteRead()
     {
         $config = new Config();
-        $config->set('user', 'admin')->set('pass', 'admin')->set('host', '127.0.0.1');
+        $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))->set('host', getenv('ROS_HOST'));
         $obj = new Client($config);
 
         $query   = new Query('/ip/address/print');
@@ -157,7 +157,7 @@ class ClientTest extends TestCase
     public function testWriteReadString()
     {
         $config = new Config();
-        $config->set('user', 'admin')->set('pass', 'admin')->set('host', '127.0.0.1');
+        $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))->set('host', getenv('ROS_HOST'));
         $obj = new Client($config);
 
         $readTrap = $obj->wr('/interface', false);
@@ -168,7 +168,7 @@ class ClientTest extends TestCase
     public function testWriteReadArray()
     {
         $config = new Config();
-        $config->set('user', 'admin')->set('pass', 'admin')->set('host', '127.0.0.1');
+        $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))->set('host', getenv('ROS_HOST'));
         $obj = new Client($config);
 
         $readTrap = $obj->wr(['/interface'], false);
@@ -179,7 +179,7 @@ class ClientTest extends TestCase
     public function testFatal()
     {
         $config = new Config();
-        $config->set('user', 'admin')->set('pass', 'admin')->set('host', '127.0.0.1');
+        $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))->set('host', getenv('ROS_HOST'));
         $obj = new Client($config);
 
         $readTrap = $obj->wr('/quit');
@@ -192,7 +192,7 @@ class ClientTest extends TestCase
         $this->expectException(QueryException::class);
 
         $config = new Config();
-        $config->set('user', 'admin')->set('pass', 'admin')->set('host', '127.0.0.1');
+        $config->set('user', getenv('ROS_USER'))->set('pass', getenv('ROS_PASS'))->set('host', getenv('ROS_HOST'));
         $obj   = new Client($config);
         $error = $obj->write($obj)->read(false);
     }
@@ -200,9 +200,9 @@ class ClientTest extends TestCase
     public function testGetConfig()
     {
         $obj = new Client([
-            'user' => 'admin',
-            'pass' => 'admin',
-            'host' => '127.0.0.1'
+            'user' => getenv('ROS_USER'),
+            'pass' => getenv('ROS_PASS'),
+            'host' => getenv('ROS_HOST')
         ]);
 
         $config = $obj->getConfig();
diff --git a/tests/Streams/ResourceStreamTest.php b/tests/Streams/ResourceStreamTest.php
index d2c466a..3fdc70a 100644
--- a/tests/Streams/ResourceStreamTest.php
+++ b/tests/Streams/ResourceStreamTest.php
@@ -77,7 +77,7 @@ class ResourceStreamTest extends TestCase
     {
         return [
             [fopen(__FILE__, 'rb'),], // Myself, sure I exists
-            [fsockopen('tcp://127.0.0.1', 18728),], // Socket
+            [fsockopen('tcp://127.0.0.1', getenv('ROS_PORT_MODERN')),], // Socket
             [STDIN, false], // Try it, but do not close STDIN please !!!
             // What else ?
         ];