diff --git a/composer.json b/composer.json
index 0648db5..0ffe14f 100644
--- a/composer.json
+++ b/composer.json
@@ -28,6 +28,7 @@
         }
     },
     "require-dev": {
-        "phpunit/phpunit": "~4"
+        "phpunit/phpunit": "~4",
+        "mikey179/vfsStream": "^1.6"
     }
 }
diff --git a/composer.lock b/composer.lock
index 4c323ee..5839a43 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "bd4fe65872a143039090e3c62b4c5a40",
-    "content-hash": "de3684c6c65b1602b52e6534aa5e6eda",
+    "hash": "31e312c5eb200fe262cc2557d2b7a5c6",
+    "content-hash": "cae1a4262309f9c2953036c6a756f04b",
     "packages": [
         {
             "name": "guzzlehttp/guzzle",
@@ -667,6 +667,52 @@
             ],
             "time": "2015-06-14 21:17:01"
         },
+        {
+            "name": "mikey179/vfsStream",
+            "version": "v1.6.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/mikey179/vfsStream.git",
+                "reference": "c19925cd0390d3c436a0203ae859afa460d0474b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/mikey179/vfsStream/zipball/c19925cd0390d3c436a0203ae859afa460d0474b",
+                "reference": "c19925cd0390d3c436a0203ae859afa460d0474b",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.5"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.6.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "org\\bovigo\\vfs\\": "src/main/php"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Frank Kleine",
+                    "homepage": "http://frankkleine.de/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Virtual file system to mock the real file system in unit tests.",
+            "homepage": "http://vfs.bovigo.org/",
+            "time": "2016-04-09 09:42:01"
+        },
         {
             "name": "phpdocumentor/reflection-docblock",
             "version": "2.0.4",
diff --git a/docs/00_Getting_Started.md b/docs/00_Getting_Started.md
index 5f383f5..6fb41be 100644
--- a/docs/00_Getting_Started.md
+++ b/docs/00_Getting_Started.md
@@ -6,20 +6,20 @@
 
 ### For Authors
 
-* [Auto Generated Navigation / Page sorting](!Features/Navigation_and_Sorting)
-* [Internal documentation links](!Features/Internal_links)
-* [Github Flavored Markdown](!Features/GitHub_Flavored_Markdown)
-* [Auto created homepage/landing page](!Features/Landing_page)
-* [Multiple Output Formats](!Features/Multiple_Output_Formats)
-* [Multiple Languages Support](!Features/Multilanguage)
-* [No Build Step](!Features/Live_mode)
-* [Static Output Generation](!Features/Static_Site_Generation)
-* [Table of Contents](!Features/Table_of_contents)
+* [Auto Generated Navigation / Page sorting](01_Features/Navigation_and_Sorting.md)
+* [Internal documentation links](01_Features/Internal_links.md)
+* [Github Flavored Markdown](01_Features/GitHub_Flavored_Markdown.md)
+* [Auto created homepage/landing page](01_Features/Landing_page.md)
+* [Multiple Output Formats](01_Features/Multiple_Output_Formats.md)
+* [Multiple Languages Support](01_Features/Multilanguage.md)
+* [No Build Step](01_Features/Live_mode.md)
+* [Static Output Generation](01_Features/Static_Site_Generation.md)
+* [Table of Contents](01_Features/Table_of_contents.md)
 
 ### For Developers
 
-* [Auto Syntax Highlighting](!Features/Auto_Syntax_Highlight)
-* [Extend Daux.io with Processors](!For_Developers/Creating_a_Processor)
+* [Auto Syntax Highlighting](01_Features/Auto_Syntax_Highlight.md)
+* [Extend Daux.io with Processors](01_For_Developers/Creating_a_Processor.md)
 * Full access to the internal API to create new pages programatically
 * Work with pages metadata
 
@@ -97,7 +97,7 @@ You can use PHP's embedded web server by running the following command in the ro
 
 Upload your files to an apache / nginx server and see your documentation
 
-[More informations here](!Features/Live_mode)
+[More informations here](01_Features/Live_mode.md)
 
 #### Export to other formats
 
@@ -107,7 +107,7 @@ Daux.io is extendable and comes by default with three export formats:
 - Export all documentation in a single HTML page
 - Upload to your Atlassian Confluence server.
 
-[See a detailed feature comparison matrix](!Features/Multiple_Output_Formats)
+[See a detailed feature comparison matrix](01_Features/Multiple_Output_Formats.md)
 
 Here's how you run an export:
 
@@ -115,11 +115,11 @@ Here's how you run an export:
 ./generate
 ```
 
-[See here for all options](!Features/Static_Site_Generation)
+[See here for all options](01_Features/Static_Site_Generation.md)
 
 ## Configuration
 
-Now that you got the basics, you can also [see what you can configure](!Configuration)
+Now that you got the basics, you can also [see what you can configure](05_Configuration/_index.md)
 
 
 ## Known Issues
diff --git a/docs/01_Features/Auto_Syntax_Highlight.md b/docs/01_Features/Auto_Syntax_Highlight.md
index 030df79..58d993b 100644
--- a/docs/01_Features/Auto_Syntax_Highlight.md
+++ b/docs/01_Features/Auto_Syntax_Highlight.md
@@ -18,4 +18,4 @@ Here is a quick example :
       <!-- here goes the rest of the page -->
     </body>
 
-[See the full list of supported languages in Daux.io](!Examples/Code_Highlighting)
+[See the full list of supported languages in Daux.io](../02_Examples/Code_Highlighting.md)
diff --git a/docs/01_Features/Internal_links.md b/docs/01_Features/Internal_links.md
index 9b7aff8..818a846 100644
--- a/docs/01_Features/Internal_links.md
+++ b/docs/01_Features/Internal_links.md
@@ -1,7 +1,49 @@
 You can create links from a page to an other, the link is then resolved to the real page.
 
-Creating a link to another page is done exactly like a normal markdown link. In the url part, start with `!` and set the absolute path to the file, omitting the numbering and file extension
+Each relative link in your pages will be resolved to a page or content within the documentation.
+If the link's destination isn't found, the page generation will fail.
 
-A link to `01_Examples/05_Code_Highlighting.md` Would be written like this: `[Code Highlight Examples](!Examples/Code_Highlighting)`
+Any valid markdown link is a valid Daux.io link.
 
-The page generation will fail if a link is wrong.
+If your file structure looks like this:
+
+```
+├── 00_Getting_Started.md
+├── 01_Features
+│   ├── 01_GitHub_Flavored_Markdown.md
+├── 02_Examples
+│   ├── Hello_World.md
+│   ├── 05_Code_Highlighting.md
+```
+
+From the page `01_Features/01_GitHub_Flavored_Markdown.md`, all the following links would be valid:
+
+    [Getting Started](../00_Getting_Started.md)
+    [Getting Started](../00_Getting_Started.html)
+    [Getting Started](../00_Getting_Started)
+    [Getting Started](../Getting_Started)
+
+    // A link starting with / means root of the documentation, not the server it will be served from.
+    [Getting Started](/Getting_Started.html)
+    [Getting Started](/Getting_Started)
+
+    // These Will first be searched for in the current directory and then start at the root of the documentation
+    [Getting Started](Getting_Started)
+    [Getting Started](00_Getting_Started)
+
+    [Hello World](../02_Examples/Hello_World.md)
+    [Hello World](../02_Examples/Hello_World.html)
+    [Hello World](../02_Examples/Hello_World)
+    [Hello World](../Examples/Hello_World)
+    [Hello World](/02_Examples/Hello_World.md)
+    [Hello World](Examples/Hello_World)
+    [Hello World](02_Examples/Hello_World)
+
+## Github publishing
+
+If you plan to publish your documentation on Github along with your source code, we recommend to only use relative links with full names.
+
+From the list of links above only these two will work both on Github and on Daux.io
+
+    [Getting Started](../00_Getting_Started.md)
+    [Hello World](../02_Examples/Hello_World.md)
diff --git a/docs/_index.md b/docs/_index.md
index 297da74..b7e51b5 100644
--- a/docs/_index.md
+++ b/docs/_index.md
@@ -10,23 +10,23 @@
 
 #### For Authors
 
-* [Auto Generated Navigation / Page sorting](!Features/Navigation_and_Sorting)
-* [Internal documentation links](!Features/Internal_links)
-* [Github Flavored Markdown](!Features/GitHub_Flavored_Markdown)
-* [Auto created homepage/landing page](!Features/Landing_page)
-* [Multiple Output Formats](!Features/Multiple_Output_Formats)
-* [Multiple Languages Support](!Features/Multilanguage)
-* [No Build Step](!Features/Live_mode)
-* [Static Output Generation](!Features/Static_Site_Generation)
-* [Table of Contents](!Features/Table_of_contents)
+* [Auto Generated Navigation / Page sorting](01_Features/Navigation_and_Sorting.md)
+* [Internal documentation links](01_Features/Internal_links.md)
+* [Github Flavored Markdown](01_Features/GitHub_Flavored_Markdown.md)
+* [Auto created homepage/landing page](01_Features/Landing_page.md)
+* [Multiple Output Formats](01_Features/Multiple_Output_Formats.md)
+* [Multiple Languages Support](01_Features/Multilanguage.md)
+* [No Build Step](01_Features/Live_mode.md)
+* [Static Output Generation](01_Features/Static_Site_Generation.md)
+* [Table of Contents](01_Features/Table_of_contents.md)
 
 </div>
 <div class=col-third>
 
 #### For Developers
 
-* [Auto Syntax Highlighting](!Features/Auto_Syntax_Highlight)
-* [Extend Daux.io with Processors](!For_Developers/Creating_a_Processor)
+* [Auto Syntax Highlighting](01_Features/Auto_Syntax_Highlight.md)
+* [Extend Daux.io with Processors](01_For_Developers/Creating_a_Processor.md)
 * Full access to the internal API to create new pages programatically
 * Work with pages metadata
 
diff --git a/libs/Config.php b/libs/Config.php
index 86ff348..3bd64f4 100644
--- a/libs/Config.php
+++ b/libs/Config.php
@@ -1,6 +1,7 @@
 <?php namespace Todaymade\Daux;
 
 use ArrayObject;
+use Todaymade\Daux\Tree\Content;
 
 class Config extends ArrayObject
 {
@@ -46,4 +47,14 @@ class Config extends ArrayObject
     {
         $this->merge($newValues, false);
     }
+
+    public function getCurrentPage()
+    {
+        return $this['current_page'];
+    }
+
+    public function setCurrentPage(Content $entry)
+    {
+        $this['current_page'] = $entry;
+    }
 }
diff --git a/libs/ContentTypes/Markdown/ContentType.php b/libs/ContentTypes/Markdown/ContentType.php
index 9af36e1..7f6c536 100644
--- a/libs/ContentTypes/Markdown/ContentType.php
+++ b/libs/ContentTypes/Markdown/ContentType.php
@@ -27,6 +27,7 @@ class ContentType implements \Todaymade\Daux\ContentTypes\ContentType
 
     public function convert($raw, Content $node)
     {
+        $this->config->setCurrentPage($node);
         return $this->converter->convertToHtml($raw);
     }
 }
diff --git a/libs/ContentTypes/Markdown/LinkRenderer.php b/libs/ContentTypes/Markdown/LinkRenderer.php
index e7add47..435f7fd 100644
--- a/libs/ContentTypes/Markdown/LinkRenderer.php
+++ b/libs/ContentTypes/Markdown/LinkRenderer.php
@@ -28,13 +28,30 @@ class LinkRenderer extends \League\CommonMark\Inline\Renderer\LinkRenderer
      */
     protected function resolveInternalFile($url)
     {
-        $file = DauxHelper::getFile($this->daux['tree'], $url);
-        if ($file) {
+        $triedAbsolute = false;
+
+        // Legacy absolute paths could start with
+        // "!" In this case we will try to find
+        // the file starting at the root
+        if ($url[0] == '!' || $url[0] == '/') {
+            $url = ltrim($url, "!/");
+
+            if ($file = DauxHelper::getFile($this->daux['tree'], $url)) {
+                return $file;
+            }
+
+            $triedAbsolute = true;
+        }
+
+        // Seems it's not an absolute path or not found,
+        // so we'll continue with the current folder
+        if ($file = DauxHelper::getFile($this->daux->getCurrentPage()->getParent(), $url)) {
             return $file;
         }
 
-        $file = DauxHelper::getFile($this->daux['tree'], $url . '.html');
-        if ($file) {
+        // If we didn't already try it, we'll
+        // do a pass starting at the root
+        if (!$triedAbsolute && $file = DauxHelper::getFile($this->daux['tree'], $url)) {
             return $file;
         }
 
@@ -42,10 +59,10 @@ class LinkRenderer extends \League\CommonMark\Inline\Renderer\LinkRenderer
     }
 
     /**
-     * @param Link $inline
+     * @param AbstractInline|Link $inline
      * @param ElementRendererInterface $htmlRenderer
-     *
      * @return HtmlElement
+     * @throws Exception
      */
     public function render(AbstractInline $inline, ElementRendererInterface $htmlRenderer)
     {
@@ -63,12 +80,19 @@ class LinkRenderer extends \League\CommonMark\Inline\Renderer\LinkRenderer
         $element = parent::render($inline, $htmlRenderer);
 
         $url = $inline->getUrl();
-        if (!empty($url) && $url[0] == '!') {
-            $file = $this->resolveInternalFile(ltrim($url, "!"));
 
-            $element->setAttribute('href', $this->daux['base_url'] . $file->getUrl());
+        // Absolute urls, empty urls and anchors
+        // should not go through the url resolver
+        if (empty($url) || $url[0] == "#" || preg_match("|^(?:[a-z]+:)?//|", $url)) {
+            return $element;
         }
 
+        $file = $this->resolveInternalFile($url);
+
+        $url = DauxHelper::getRelativePath($this->daux->getCurrentPage()->getUrl(), $file->getUrl());
+
+        $element->setAttribute('href', $url);
+
         return $element;
     }
 }
diff --git a/libs/DauxHelper.php b/libs/DauxHelper.php
index 51b1dad..be3aa0e 100644
--- a/libs/DauxHelper.php
+++ b/libs/DauxHelper.php
@@ -1,5 +1,6 @@
 <?php namespace Todaymade\Daux;
 
+use Todaymade\Daux\Tree\Builder;
 use Todaymade\Daux\Tree\Directory;
 
 class DauxHelper
@@ -140,6 +141,16 @@ class DauxHelper
         return implode(DIRECTORY_SEPARATOR, $absolutes);
     }
 
+    public static function getFilenames(Config $config, $part)
+    {
+        $extensions = implode("|", array_map("preg_quote", $config["valid_content_extensions"])) . "|html";
+
+        $raw = preg_replace("/(.*)?\\.(" . $extensions . ")$/", "$1", $part);
+        $raw = Builder::removeSortingInformations($raw);
+
+        return ["$raw.html", $raw];
+    }
+
     /**
      * Locate a file in the tree. Returns the file if found or false
      *
@@ -157,6 +168,16 @@ class DauxHelper
                 return false;
             }
 
+            // Some relative paths may start with ./
+            if ($node == '.') {
+                continue;
+            }
+
+            if ($node == '..') {
+                $tree = $tree->getParent();
+                continue;
+            }
+
             $node = urldecode($node);
 
             // if the node exists in the current request tree,
@@ -167,6 +188,16 @@ class DauxHelper
                 continue;
             }
 
+            // if the node doesn't exist, we can try
+            // two variants of the requested file:
+            // with and w/o the .html extension
+            foreach (static::getFilenames($tree->getConfig(), $node) as $filename) {
+                if (isset($tree->getEntries()[$filename])) {
+                    $tree = $tree->getEntries()[$filename];
+                    continue 2;
+                }
+            }
+
             // At this stage, we're in a directory, but no
             // sub-item matches, so the current node must
             // be an index page or we failed
@@ -194,7 +225,7 @@ class DauxHelper
      *
      * Taken from Stringy
      *
-     * @param  string  $title
+     * @param  string $title
      * @return string
      */
     public static function slug($title)
@@ -357,4 +388,37 @@ class DauxHelper
                 "\xE2\x80\xAF", "\xE2\x81\x9F", "\xE3\x80\x80"),
         );
     }
+
+    public static function getRelativePath($from, $to)
+    {
+        // some compatibility fixes for Windows paths
+        $from = is_dir($from) ? rtrim($from, '\/') . '/' : $from;
+        $to = is_dir($to) ? rtrim($to, '\/') . '/' : $to;
+        $from = str_replace('\\', '/', $from);
+        $to = str_replace('\\', '/', $to);
+
+        $from = explode('/', $from);
+        $to = explode('/', $to);
+        $relPath = $to;
+
+        foreach ($from as $depth => $dir) {
+            // find first non-matching dir
+            if ($dir === $to[$depth]) {
+                // ignore this directory
+                array_shift($relPath);
+            } else {
+                // get number of remaining dirs to $from
+                $remaining = count($from) - $depth;
+                if ($remaining > 1) {
+                    // add traversals up to first matching dir
+                    $padLength = (count($relPath) + $remaining - 1) * -1;
+                    $relPath = array_pad($relPath, $padLength, '..');
+                    break;
+                } else {
+                    //$relPath[0] = './' . $relPath[0];
+                }
+            }
+        }
+        return implode('/', $relPath);
+    }
 }
diff --git a/libs/Tree/Builder.php b/libs/Tree/Builder.php
index ed52ed4..e357cf2 100644
--- a/libs/Tree/Builder.php
+++ b/libs/Tree/Builder.php
@@ -17,15 +17,17 @@ class Builder
 
     protected static function isIgnored(\SplFileInfo $file, $ignore)
     {
-        if (in_array($file->getFilename(), static::$IGNORED)) {
+        $filename = $file->getFilename();
+
+        if (in_array($filename, static::$IGNORED)) {
             return true;
         }
 
-        if ($file->isDir() && in_array($file->getFilename(), $ignore['folders'])) {
+        if (array_key_exists('folders', $ignore) && $file->isDir() && in_array($filename, $ignore['folders'])) {
             return true;
         }
 
-        if (!$file->isDir() && in_array($file->getFilename(), $ignore['files'])) {
+        if (array_key_exists('files', $ignore) && !$file->isDir() && in_array($filename, $ignore['files'])) {
             return true;
         }
 
diff --git a/libs/Tree/Directory.php b/libs/Tree/Directory.php
index d14603a..20631b9 100644
--- a/libs/Tree/Directory.php
+++ b/libs/Tree/Directory.php
@@ -1,8 +1,10 @@
 <?php namespace Todaymade\Daux\Tree;
 
+use ArrayIterator;
+use RuntimeException;
 use Todaymade\Daux\Daux;
 
-class Directory extends Entry
+class Directory extends Entry implements \ArrayAccess, \IteratorAggregate
 {
     /** @var Entry[] */
     protected $children = [];
@@ -231,4 +233,54 @@ class Directory extends Entry
 
         return $dump;
     }
+
+    /**
+     * Whether a offset exists
+     * @param mixed $offset An offset to check for.
+     * @return boolean true on success or false on failure.
+     */
+    public function offsetExists($offset)
+    {
+        return array_key_exists($offset, $this->children);
+    }
+
+    /**
+     * Offset to retrieve
+     * @param mixed $offset The offset to retrieve.
+     * @return Entry Can return all value types.
+     */
+    public function offsetGet($offset)
+    {
+        return $this->children[$offset];
+    }
+
+    /**
+     * Offset to set
+     * @param mixed $offset The offset to assign the value to.
+     * @param Entry $value The value to set.
+     * @return void
+     */
+    public function offsetSet($offset, $value)
+    {
+        if (!$value instanceof Entry) {
+            throw new RuntimeException("The value is not of type Entry");
+        }
+
+        $this->addChild($value);
+    }
+
+    /**
+     * Offset to unset
+     * @param string $offset the offset to unset
+     * @return void
+     */
+    public function offsetUnset($offset)
+    {
+        unset($this->children[$offset]);
+    }
+
+    public function getIterator()
+    {
+        return new ArrayIterator($this->children);
+    }
 }
diff --git a/tests/ContentTypes/Markdown/LinkRendererTest.php b/tests/ContentTypes/Markdown/LinkRendererTest.php
new file mode 100644
index 0000000..40667b5
--- /dev/null
+++ b/tests/ContentTypes/Markdown/LinkRendererTest.php
@@ -0,0 +1,68 @@
+<?php namespace Todaymade\Daux\ContentTypes\Markdown;
+
+use org\bovigo\vfs\vfsStream;
+use Todaymade\Daux\Config;
+use Todaymade\Daux\Daux;
+use Todaymade\Daux\DauxHelper;
+use Todaymade\Daux\Tree\Builder;
+use Todaymade\Daux\Tree\Root;
+
+class LinkRendererTest extends \PHPUnit_Framework_TestCase
+{
+    protected function getTree(Config $config)
+    {
+        $structure = [
+            'Content' => [
+                'Page.md' => 'some text content',
+            ],
+            'Widgets' => [
+                'Page.md' => 'another page',
+                'Button.md' => 'another page',
+            ],
+        ];
+        $root = vfsStream::setup('root', null, $structure);
+
+        $config['valid_content_extensions'] = ['md'];
+        $config['mode'] = Daux::STATIC_MODE;
+        $config['index_key'] = 'index.html';
+
+        $tree = new Root($config, $root->url());
+        Builder::build($tree, []);
+
+        return $tree;
+    }
+
+    public function providerRenderLink()
+    {
+        return [
+            // /Widgets/Page
+            ['<a href="http://google.ch">Link</a>', "[Link](http://google.ch)", "Widgets/Page.html"],
+            ['<a href="#features">Link</a>', "[Link](#features)", "Widgets/Page.html"],
+            ['<a href="Button.html">Link</a>', "[Link](Button.md)", "Widgets/Page.html"],
+            ['<a href="Button.html">Link</a>', "[Link](./Button.md)", "Widgets/Page.html"],
+            ['<a href="Button.html">Link</a>', "[Link](Button)", "Widgets/Page.html"],
+            ['<a href="Button.html">Link</a>', "[Link](./Button)", "Widgets/Page.html"],
+            ['<a href="Button.html">Link</a>', "[Link](!Widgets/Button)", "Widgets/Page.html"],
+
+            // /Content/Page
+            ['<a href="../Widgets/Button.html">Link</a>', "[Link](../Widgets/Button.md)", "Content/Page.html"],
+            ['<a href="../Widgets/Button.html">Link</a>', "[Link](!Widgets/Button)", "Content/Page.html"],
+        ];
+    }
+
+    /**
+     * @dataProvider providerRenderLink
+     */
+    public function testRenderLink($expected, $string, $current)
+    {
+        $config = new Config();
+        $config['base_url'] = '';
+
+        $config['tree'] = $this->getTree($config);
+        $config->setCurrentPage(DauxHelper::getFile($config['tree'], $current));
+
+        $converter = new CommonMarkConverter(['daux' => $config]);
+
+        $this->assertEquals("<p>$expected</p>", trim($converter->convertToHtml($string)));
+    }
+}
diff --git a/tests/DauxHelperTest.php b/tests/DauxHelperTest.php
new file mode 100644
index 0000000..b642ef1
--- /dev/null
+++ b/tests/DauxHelperTest.php
@@ -0,0 +1,25 @@
+<?php namespace Todaymade\Daux;
+
+class DauxHelperTest extends \PHPUnit_Framework_TestCase {
+
+    public function providerGetFilenames() {
+        return [
+            [["Page.html", "Page"], "Page.html"],
+            [["Page.html", "Page"], "Page.md"],
+            [["Page.html", "Page"], "Page"],
+            [["Code_Highlighting.html", "Code_Highlighting"], "05_Code_Highlighting.md"],
+        ];
+    }
+
+    /**
+     * @dataProvider providerGetFilenames
+     */
+    public function testGetFilenames($expected, $node) {
+
+        $config = new Config();
+        $config['valid_content_extensions'] = ['md'];
+
+        $this->assertEquals($expected, DauxHelper::getFilenames($config, $node));
+    }
+
+}
diff --git a/tests/Tree/BuilderIntegrationTest.php b/tests/Tree/BuilderIntegrationTest.php
new file mode 100644
index 0000000..400c746
--- /dev/null
+++ b/tests/Tree/BuilderIntegrationTest.php
@@ -0,0 +1,50 @@
+<?php namespace Todaymade\Daux\Tree;
+
+use org\bovigo\vfs\vfsStream;
+use org\bovigo\vfs\vfsStreamDirectory;
+use Todaymade\Daux\Config;
+use Todaymade\Daux\Daux;
+
+class BuilderIntegrationTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var vfsStreamDirectory
+     */
+    private $root;
+
+    public function setUp()
+    {
+        $structure = [
+            'Contents' => [
+                'Page.md' => 'some text content',
+            ],
+            'Widgets' => [
+                'Page.md' => 'another page',
+                'Button.md' => 'another page',
+            ],
+        ];
+        $this->root = vfsStream::setup('root', null, $structure);
+    }
+
+    public function testCreateHierarchy()
+    {
+        $config = new Config();
+        $config['valid_content_extensions'] = ['md'];
+        $config['mode'] = Daux::STATIC_MODE;
+        $config['index_key'] = 'index.html';
+
+        $tree = new Root($config, $this->root->url());
+        Builder::build($tree, []);
+
+        $this->assertCount(2, $tree);
+
+        $this->assertTrue(array_key_exists('Contents', $tree->getEntries()));
+        $this->assertInstanceOf(Directory::class, $tree['Contents']);
+        $this->assertTrue(array_key_exists('Widgets', $tree->getEntries()));
+        $this->assertInstanceOf(Directory::class, $tree['Widgets']);
+
+        // TODO :: should not be Page.html, this should not depend on the mode
+        $this->assertEquals('Page', $tree['Contents']['Page.html']->getTitle());
+        $this->assertInstanceOf(Content::class, $tree['Contents']['Page.html']);
+    }
+}