diff --git a/.gitignore b/.gitignore
index aee99119b0..86061ac7ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,16 @@ node_modules
 # test
 oc-includes/osclass/t/config.php
 oc-includes/simpletest/test/osclass/custom_config.php
+
+
+# Created by https://www.gitignore.io/api/composer
+
+### Composer ###
+composer.phar
+/vendor/
+
+# Commit your application's lock file http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file
+# You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
+# composer.lock
+
+# End of https://www.gitignore.io/api/composer
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000000..61c9c4213d
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,7 @@
+language: php
+php:
+  - '5.6'
+  - '7.0'
+  - '7.1'
+install: composer install
+script: vendor/bin/phpunit
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000000..fd8c1d9a4c
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,20 @@
+
+{
+  "name": "osclass/Osclass",
+  "description": "Osclass is your one-stop shop to building your own classifieds marketplace",
+  "license": "Apache-2.0",
+  "type": "project",
+  "authors": [
+    {
+      "name": "Christopher Silva",
+      "email": "xiris@xiris.com.br"
+    },
+    {
+      "name": "Blackleg",
+      "email": "hectorespertpardo@gmail.com"
+    }
+  ],
+  "require-dev": {
+    "phpunit/phpunit": "^5.7"
+  }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
index 0000000000..43ae0cd565
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,1332 @@
+{
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+        "This file is @generated automatically"
+    ],
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+                }
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+                "symfony/console": "~2.8|~3.0"
+            },
+            "suggest": {
+                "symfony/console": "For validating YAML files using the lint command"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.3-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Yaml\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony Yaml Component",
+            "homepage": "https://symfony.com",
+            "time": "2017-06-15 12:58:50"
+        },
+        {
+            "name": "webmozart/assert",
+            "version": "1.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/webmozart/assert.git",
+                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/2db61e59ff05fe5126d152bd0655c9ea113e550f",
+                "reference": "2db61e59ff05fe5126d152bd0655c9ea113e550f",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3.3 || ^7.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.6",
+                "sebastian/version": "^1.0.1"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.3-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Webmozart\\Assert\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Bernhard Schussek",
+                    "email": "bschussek@gmail.com"
+                }
+            ],
+            "description": "Assertions to validate method input/output with nice error messages.",
+            "keywords": [
+                "assert",
+                "check",
+                "validate"
+            ],
+            "time": "2016-11-23 20:04:58"
+        }
+    ],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": []
+}
diff --git a/oc-includes/osclass/classes/Dependencies.php b/oc-includes/osclass/classes/Dependencies.php
index 9f68c413c7..065313c6ec 100644
--- a/oc-includes/osclass/classes/Dependencies.php
+++ b/oc-includes/osclass/classes/Dependencies.php
@@ -12,11 +12,9 @@ class Dependencies {
     var $resolved     = array();
     var $unresolved   = array();
     var $error        = array();
-
+    
     public function __construct()
     {
-        $registered = array();
-        $queue      = array();
     }
 
     /**
@@ -26,7 +24,7 @@ public function __construct()
      * @param type $url
      * @param type $dependencies mixed, it could be an array or a string
      */
-    public function register($id, $url, $dependencies) {
+    public function register($id, $url, $dependencies = NULL) {
         if($id!='' && $url!='') {
             $this->registered[$id] = array(
                 'key' => $id
@@ -45,6 +43,26 @@ public function unregister($id)
     {
         unset($this->registered[$id]);
     }
+    
+    /**
+     * Enqueu to be loaded
+     *
+     * @param string $id
+     */
+    public function enqueu($id)
+    {
+        $this->queue[$id] = $id;
+    }
+    /**
+     * Remove to not be loaded
+     *
+     * @param type $id
+     */
+    public function remove($id)
+    {
+        unset($this->queue[$id]);
+    }
+
 
     /**
      * Try to order all script having in mind their dependencies
diff --git a/oc-includes/osclass/classes/Scripts.php b/oc-includes/osclass/classes/Scripts.php
index b334c1567c..48313afe1a 100644
--- a/oc-includes/osclass/classes/Scripts.php
+++ b/oc-includes/osclass/classes/Scripts.php
@@ -51,7 +51,7 @@ public function unregisterScript($id)
      */
     public function enqueuScript($id)
     {
-        $this->queue[$id] = $id;
+        $this->enqueu($id);
     }
 
     /**
@@ -61,7 +61,7 @@ public function enqueuScript($id)
      */
     public function removeScript($id)
     {
-        unset($this->queue[$id]);
+        $this->remove($id);
     }
 
     /**
diff --git a/phpunit.xml b/phpunit.xml
new file mode 100644
index 0000000000..cc540f3417
--- /dev/null
+++ b/phpunit.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<phpunit bootstrap="test/bootstrap.php">
+    <testsuites>
+        <testsuite name="Test Suite">
+            <directory>./test</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>
diff --git a/test/bootstrap.php b/test/bootstrap.php
new file mode 100644
index 0000000000..f76ec6653f
--- /dev/null
+++ b/test/bootstrap.php
@@ -0,0 +1,14 @@
+<?php
+// autoload.php
+use Composer\Autoload\ClassLoader;
+/**
+ * @var ClassLoader $loader
+ */
+$loader = require __DIR__.'/../vendor/autoload.php';
+/**
+ * Load Classes
+ */
+require_once __DIR__.'/../oc-includes/osclass/classes/Dependencies.php';
+require_once __DIR__.'/../oc-includes/osclass/classes/Scripts.php';
+require_once __DIR__.'/../oc-includes/osclass/classes/Styles.php';
+return $loader;
diff --git a/test/classes/DependenciesTest.php b/test/classes/DependenciesTest.php
new file mode 100644
index 0000000000..76eef53b92
--- /dev/null
+++ b/test/classes/DependenciesTest.php
@@ -0,0 +1,109 @@
+<?php
+/*
+ * Copyright 2017 Osclass
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+class DependenciesTest extends TestCase {
+    
+    
+    public function testConstruct()
+    {
+        $dependencies = new Dependencies();
+        $this->assertNotNull($dependencies);
+    }
+    
+    
+    public function testRegister()
+    {
+        $dependencies = new Dependencies();
+        $dependencies->register("dependencie", "url", "dependencies");
+        $this->assertArrayHasKey("dependencie", $dependencies->registered);
+        $dependencie = $dependencies->registered["dependencie"];
+        $this->assertNotNull($dependencie);
+        $this->assertEquals("dependencie", $dependencie['key']);
+        $this->assertEquals("url", $dependencie['url']);
+        $this->assertEquals("dependencies", $dependencie['dependencies']);
+        
+        $dependencies->register("dependencie_two", "url", ["dependencie", "dependencie_other"]);
+        $this->assertArrayHasKey("dependencie_two", $dependencies->registered);
+        $dependencie_two = $dependencies->registered["dependencie_two"];
+        $this->assertNotNull($dependencie_two);
+        $this->assertEquals("dependencie_two", $dependencie_two['key']);
+        $this->assertEquals("url", $dependencie_two['url']);
+        $this->assertEquals(["dependencie", "dependencie_other"], $dependencie_two['dependencies']);
+    }
+    
+    public function testUnregister()
+    {
+        $dependencies = new Dependencies();
+        $dependencies->register("dependencie", "url", "dependencies");
+        $dependencies->register("dependencie_two", "url", ["dependencie", "dependencie_other"]);
+        $this->assertArrayHasKey("dependencie", $dependencies->registered);
+        $this->assertArrayHasKey("dependencie_two", $dependencies->registered);
+        
+        $dependencies->unregister("dependencie_two");
+        $this->assertArrayHasKey("dependencie", $dependencies->registered);
+        $this->assertArrayNotHasKey("dependencie_two", $dependencies->registered);
+        
+        $dependencies->unregister("dependencie");
+        $this->assertArrayNotHasKey("dependencie", $dependencies->registered);
+        $this->assertArrayNotHasKey("dependencie_two", $dependencies->registered);
+    }
+    public function testEnqueu()
+    {
+        $dependencies = new Dependencies();
+        $this->assertEmpty($dependencies->queue);
+        $dependencies->enqueu("dependencie"); 
+        $this->assertArrayHasKey("dependencie", $dependencies->queue);
+        $dependencies->enqueu("dependencie_two");
+        $this->assertArrayHasKey("dependencie_two", $dependencies->queue);   
+        
+        $this->assertNotEmpty($dependencies->queue);
+        $this->assertEquals(["dependencie" => "dependencie", "dependencie_two" => "dependencie_two"], $dependencies->queue);
+    }
+    
+    public function testRemove()
+    {
+        $dependencies = new Dependencies();
+        $dependencies->enqueu("dependencie"); 
+        $dependencies->enqueu("dependencie_two");
+        $this->assertNotEmpty($dependencies->queue);
+        $this->assertEquals(["dependencie" => "dependencie", "dependencie_two" => "dependencie_two"], $dependencies->queue);
+        
+        $dependencies->remove("dependencie_two");
+        $this->assertArrayNotHasKey("dependencie_two", $dependencies->queue);
+        
+        $dependencies->remove("dependencie");
+        $this->assertArrayNotHasKey("dependencie", $dependencies->queue);
+        $this->assertEmpty($dependencies->queue);
+    }
+    
+    public function testOrder()
+    {
+        $dependencies = new Dependencies();
+        $dependencies->register("dependencie", "url", "dependencies");
+        $dependencies->register("dependencie_two", "url", ["dependencie", "dependencies"]);
+        $dependencies->register("dependencies", "url");
+        $dependencies->enqueu("dependencie");
+        $dependencies->enqueu("dependencie_two");
+        $dependencies->enqueu("dependencies");
+        $this->assertEmpty($dependencies->resolved);
+        $dependencies->order();
+        $this->assertNotEmpty($dependencies->resolved);
+        
+        $this->assertEmpty($dependencies->unresolved);
+        $this->assertEmpty($dependencies->error);       
+    }
+}
diff --git a/test/classes/ScriptsTest.php b/test/classes/ScriptsTest.php
new file mode 100644
index 0000000000..26d1ff3ae5
--- /dev/null
+++ b/test/classes/ScriptsTest.php
@@ -0,0 +1,108 @@
+<?php
+/*
+ * Copyright 2017 Osclass
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+class ScriptsTest extends TestCase {
+    
+    
+    public function testConstruct()
+    {
+        $scripts = new Scripts();
+        $this->assertNotNull($scripts);
+    }
+    
+    public function testNewInstance()
+    {
+        $scripts = Scripts::newInstance();
+        $this->assertNotNull($scripts);
+        $this->assertSame($scripts, Scripts::newInstance());
+    }
+    
+    public function testRegisterScript()
+    {
+        $scripts = new Scripts();
+        $scripts->registerScript("script", "url", "scripts");
+        $this->assertArrayHasKey("script", $scripts->registered);
+        
+        $scripts->register("script_two", "url", ["script", "script_other"]);
+        $this->assertArrayHasKey("script_two", $scripts->registered);
+        
+        $scripts->register("script_other", "url");
+        $this->assertArrayHasKey("script_other", $scripts->registered);
+    }
+    
+    public function testUnregisterScript()
+    {
+        $scripts = new Scripts();
+        $scripts->registerScript("script", "url", "scripts");
+        $scripts->registerScript("script_two", "url", ["script", "script_other"]);
+        $this->assertArrayHasKey("script", $scripts->registered);
+        $this->assertArrayHasKey("script_two", $scripts->registered);
+        
+        $scripts->unregisterScript("script_two");
+        $this->assertArrayHasKey("script", $scripts->registered);
+        $this->assertArrayNotHasKey("script_two", $scripts->registered);
+        
+        $scripts->unregisterScript("script");
+        $this->assertArrayNotHasKey("script", $scripts->registered);
+        $this->assertArrayNotHasKey("script_two", $scripts->registered);
+    }
+    
+    
+    public function testEnqueuScript()
+    {
+        $scripts = new Scripts();
+        $this->assertEmpty($scripts->queue);
+        $scripts->enqueuScript("script"); 
+        $this->assertArrayHasKey("script", $scripts->queue);
+        $scripts->enqueuScript("script_two");
+        $this->assertArrayHasKey("script_two", $scripts->queue);
+        $this->assertNotEmpty($scripts->queue);
+        $this->assertEquals(["script" => "script", "script_two" => "script_two"], $scripts->queue);
+    }
+    
+    public function testRemoveScript()
+    {
+        $scripts = new Scripts();
+        $scripts->enqueu("script"); 
+        $scripts->enqueu("script_two");
+        $this->assertNotEmpty($scripts->queue);
+        $this->assertEquals(["script" => "script", "script_two" => "script_two"], $scripts->queue);
+        
+        $scripts->remove("script_two");
+        $this->assertArrayNotHasKey("script_two", $scripts->queue);
+        
+        $scripts->remove("script");
+        $this->assertArrayNotHasKey("script", $scripts->queue);
+        $this->assertEmpty($scripts->queue);
+    }
+    
+    public function testGetScripts() {
+        $scripts = new Scripts();
+        $scripts->registerScript("script_root", "root_url");
+        $scripts->registerScript("script", "script_url", "script_root");
+        $scripts->registerScript("script_two", "script_two_url", ["script_root", "script"]);
+        
+        $scripts->enqueu("script_root");
+        $scripts->enqueu("script");
+        $scripts->enqueu("script_two");
+        
+        $result = $scripts->getScripts();
+        $this->assertNotNull($result);
+        $this->assertEquals($result, ["root_url", "script_url", "script_two_url"]);    
+    }
+    
+}
diff --git a/test/classes/StylesTest.php b/test/classes/StylesTest.php
new file mode 100644
index 0000000000..a19e985550
--- /dev/null
+++ b/test/classes/StylesTest.php
@@ -0,0 +1,74 @@
+<?php
+/*
+ * Copyright 2017 Osclass
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+use PHPUnit\Framework\TestCase;
+class StylesTest extends TestCase {
+    
+    
+    public function testConstruct()
+    {
+        $styles = new Styles();
+        $this->assertNotNull($styles);
+    }
+    
+    public function testNewInstance()
+    {
+        $styles = Styles::newInstance();
+        $this->assertNotNull($styles);
+        $this->assertSame($styles, Styles::newInstance());
+    }
+    
+    public function testAddStyle()
+    {
+        $styles = new Styles();
+        $styles->addStyle("style", "url");
+        $this->assertArrayHasKey("style", $styles->styles);
+        
+        $styles->addStyle("style_two", "url");
+        $this->assertArrayHasKey("style_two", $styles->styles);
+        
+        $styles->addStyle("style_other", "url");
+        $this->assertArrayHasKey("style_other", $styles->styles);
+        $this->assertEquals(["style" => "url", "style_two" => "url", "style_other" => "url"], $styles->styles);
+    }
+    
+    public function testRemoveScript()
+    {
+        $styles = new Styles();
+        $styles->addStyle("style", "url");
+        $styles->addStyle("style_two", "url");
+        $this->assertNotEmpty($styles->styles);
+        $this->assertEquals(["style" => "url", "style_two" => "url"], $styles->styles);
+        
+        $styles->removeStyle("style_two");
+        $this->assertArrayNotHasKey("style_two", $styles->styles);
+        
+        $styles->removeStyle("style");
+        $this->assertArrayNotHasKey("style", $styles->styles);
+        $this->assertEmpty($styles->styles);
+    }
+    
+    public function testGetStyles() {
+        $styles = new Styles();
+        $styles->addStyle("style", "style_url");
+        $styles->addStyle("style_two", "style_two_url");
+        $styles->addStyle("style_other", "style_other_url");
+        
+        $result = $styles->getStyles();
+        $this->assertNotNull($result);
+        $this->assertEquals($result, ["style" => "style_url", "style_two" => "style_two_url", "style_other" => "style_other_url"]);    
+    }
+}