diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..db3c7ec
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,43 @@
+name: Test
+on:
+  - push
+  - pull_request
+
+jobs:
+  test:
+    name: Run tests
+    runs-on: 'ubuntu-latest'
+    strategy:
+      fail-fast: false
+      matrix:
+        php-version:
+          - "7.4"
+          - "8.0"
+          - "8.1"
+          - "8.2"
+          - "8.3"
+          - "8.4"
+    steps:
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-version }}
+
+      - name: Update composer
+        run: composer --verbose self-update --2
+
+      - name: Dump composer version
+        run: composer --version
+
+      - name: Validate composer.json
+        run: composer --verbose validate
+
+      - name: Install dependencies
+        run: composer --verbose install
+
+      - name: Run tests
+        run: composer test
diff --git a/composer.json b/composer.json
index 2a2323a..f5a4d41 100644
--- a/composer.json
+++ b/composer.json
@@ -6,5 +6,30 @@
     "psr-4": {
       "Frontkom\\CommonBehatDefinitions\\": "src/"
     }
-  }
+  },
+    "scripts": {
+        "test": [
+            "@composer phpcs",
+            "phpstan",
+            "phpunit"
+        ],
+        "phpcs": "vendor/bin/phpcs -p"
+    },
+  "require": {
+    "behat/behat": "^3.0",
+    "behat/mink": "^1.0",
+    "behat/mink-selenium2-driver": "^1.0",
+    "friends-of-behat/mink-extension": "^2.0"
+  },
+    "require-dev": {
+        "squizlabs/php_codesniffer": "^3.10",
+        "slevomat/coding-standard": "^8.15",
+        "phpunit/phpunit": "^9.0 || ^10.5",
+        "phpstan/phpstan": "^1.12"
+    },
+    "config": {
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true
+        }
+    }
 }
diff --git a/phpcs.xml.dist b/phpcs.xml.dist
new file mode 100644
index 0000000..00e518a
--- /dev/null
+++ b/phpcs.xml.dist
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<ruleset name="frontkom_as">
+    <arg name="encoding" value="utf-8"/>
+    <file>./src</file>
+    <file>./tests</file>
+    <rule ref="./vendor/squizlabs/php_codesniffer/src/Standards/PSR2"/>
+    <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace" />
+    <rule ref="SlevomatCodingStandard.Arrays.TrailingArrayComma"/>
+    <rule ref="SlevomatCodingStandard.Namespaces.UnusedUses"/>
+    <rule ref="SlevomatCodingStandard.PHP.ShortList"/>
+    <rule ref="Generic.Arrays.DisallowLongArraySyntax.Found">
+      <type>warning</type>
+    </rule>
+</ruleset>
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..46b0f47
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,5 @@
+parameters:
+    level: 5
+    paths:
+        - src
+        - tests
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
new file mode 100644
index 0000000..fa0a74d
--- /dev/null
+++ b/phpunit.xml.dist
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd"
+         bootstrap="vendor/autoload.php"
+         cacheDirectory=".phpunit.cache"
+         executionOrder="depends,defects"
+         beStrictAboutOutputDuringTests="true"
+         displayDetailsOnPhpunitDeprecations="true"
+         failOnPhpunitDeprecation="true"
+         failOnRisky="true"
+         failOnWarning="true">
+    <testsuites>
+        <testsuite name="default">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <source restrictDeprecations="true" restrictNotices="true" restrictWarnings="true">
+        <include>
+            <directory>src</directory>
+        </include>
+    </source>
+</phpunit>
diff --git a/src/CommonFeatureContext.php b/src/CommonFeatureContext.php
index f48e015..38e3dc1 100644
--- a/src/CommonFeatureContext.php
+++ b/src/CommonFeatureContext.php
@@ -24,14 +24,18 @@ public function iWaitUntilElementIsVisible($selector)
     {
         $elements = $this->getSession()->getPage()->findAll('css', $selector);
         if (count($elements) !== 1) {
-          throw new \Exception('Expected to find exactly one element by selector ' . $selector . ' but found ' . count($elements) . ' elements');
+            throw new \Exception(
+                'Expected to find exactly one element by selector ' .
+                $selector .
+                ' but found ' . count($elements) . ' elements'
+            );
         }
         /** @var \Behat\Mink\Element\NodeElement $element */
         $element = reset($elements);
         $i = 0;
-        while (TRUE) {
+        while (true) {
             if ($element->isVisible()) {
-              return;
+                return;
             }
             sleep(1);
             $i++;
@@ -61,14 +65,33 @@ public function iWaitSeconds($count)
         usleep($count * 1000000);
     }
 
+    /**
+     * Set the viewport to something defined as desktop.
+     *
+     * If you need to override this, simply create a class that extends this
+     * class, and reference that class inside your behat.yml file.
+     *
+     * @Given viewport is desktop
+     * @Given the viewport is desktop
+     */
+    public function iSetDesktopViewport()
+    {
+        $mink = $this->getMink();
+        if (!$mink->getSession()->isStarted()) {
+            $mink->getSession()->start();
+        }
+        $this->getSession()->resizeWindow(self::WIDTH, self::HEIGHT, 'current');
+    }
+
     /**
      * Scroll something into view.
      *
      * @Then I scroll element :selector into view
      * @Then I scroll :selector into view
      */
-    public function scrollSelectorIntoView($selector) {
-      $function = <<<JS
+    public function scrollSelectorIntoView($selector)
+    {
+        $function = <<<JS
   (function(){
     var elem = jQuery("$selector")[0];
     elem.scrollIntoView(false);
@@ -77,8 +100,7 @@ public function scrollSelectorIntoView($selector) {
   JS;
         try {
             $this->getSession()->executeScript($function);
-        }
-        catch (\Exception $e) {
+        } catch (\Exception $e) {
             throw new \Exception("ScrollIntoView failed: " . $e->getMessage());
         }
     }
diff --git a/src/ElementExistsTrait.php b/src/ElementExistsTrait.php
index e711f1b..86aefcc 100644
--- a/src/ElementExistsTrait.php
+++ b/src/ElementExistsTrait.php
@@ -14,7 +14,7 @@ trait ElementExistsTrait
      * @Given I wait until element :arg1 exists
      * @Given I wait until element :arg1 exists max :arg2 seconds
      */
-    public function iWaitUntilElementExists($element, $seconds = NULL)
+    public function iWaitUntilElementExists($element, $seconds = null)
     {
         $seconds = (isset($seconds) && !empty($seconds)) ? $seconds : 10;
         $waited = 0;
diff --git a/src/GutenbergContext.php b/src/GutenbergContext.php
index aa47842..323d9b7 100644
--- a/src/GutenbergContext.php
+++ b/src/GutenbergContext.php
@@ -4,39 +4,47 @@
 
 use Behat\MinkExtension\Context\RawMinkContext;
 
-class GutenbergContext extends RawMinkContext {
+class GutenbergContext extends RawMinkContext
+{
 
   /**
    * Prepend a paragraph block basically.
    *
    * @Then /^I write text "([^"]*)" as a paragraph in the gutenberg field on the page$/
    */
-  public function iWriteInTheGutenbergFieldOnThePage($text) {
-    $js = sprintf("(function(){
+    public function iWriteInTheGutenbergFieldOnThePage($text)
+    {
+        $js = sprintf("(function(){
       var block = wp.blocks.createBlock('core/paragraph', {content: '%s'});
       wp.data.dispatch('core/editor').insertBlock(block, null);
       return block.clientId;
     })()", $text);
-    $this->getSession()->evaluateScript($js);
-  }
+        $this->getSession()->evaluateScript($js);
+    }
 
   /**
    * Step to wait for the editor to be ready.
    *
    * @Then /^I wait until gutenberg is ready$/
    */
-  public function iWaitUntilGutenbergIsReady($max_wait = 10) {
-    while (TRUE) {
-      $is_ready = $this->getSession()->evaluateScript("wp && wp.data && wp.data.select && wp.data.select('core/editor').isCleanNewPost() || wp.data.select('core/block-editor').getBlockCount() > 0");
-      if ($is_ready) {
-        break;
-      }
-      sleep(1);
-      $max_wait--;
-      if ($max_wait <= 0) {
-        throw new \Exception('Gutenberg did not load in time');
-      }
+    public function iWaitUntilGutenbergIsReady($max_wait = 10)
+    {
+        while (true) {
+            $is_ready = $this->getSession()->evaluateScript(
+                "wp &&
+                wp.data &&
+                wp.data.select &&
+                wp.data.select('core/editor').isCleanNewPost() ||
+                  wp.data.select('core/block-editor').getBlockCount() > 0"
+            );
+            if ($is_ready) {
+                break;
+            }
+            sleep(1);
+            $max_wait--;
+            if ($max_wait <= 0) {
+                throw new \Exception('Gutenberg did not load in time');
+            }
+        }
     }
-  }
-
 }
diff --git a/src/JsErrorsDumper.php b/src/JsErrorsDumper.php
index e68917d..616ac42 100644
--- a/src/JsErrorsDumper.php
+++ b/src/JsErrorsDumper.php
@@ -9,65 +9,65 @@
 /**
  * Provides AfterStep that dumps any JS errors that appear during given step.
  */
-trait JsErrorsDumper {
+trait JsErrorsDumper
+{
 
   /**
    * Checks that the step did not trigger any JS errors.
    *
    * @AfterStep
    */
-  public function lookForJsErrors(AfterStepScope $scope) {
-    // No steps, nothing to do.
-    if (!$scope->getStep()) {
-      return;
-    }
-    $driver = $this->getSession()->getDriver();
-    if (!($driver instanceof Selenium2Driver)) {
-      // Only works in browsers.
-      return;
-    }
-    // If the webdriver session has not started, probably means we are not
-    // navigating in a context where we can actually evaluate any scripts at
-    // all. This AfterStep will also trigger on steps in a background, for
-    // example stuff like "Given a node with title something", which of course
-    // will not let us have a browser window to check if there are any errors,
-    // even if the driver of the session technically is a Selenium2Driver.
-    try {
-      if (!$driver->getWebDriverSession()) {
-        return;
-      }
-    }
-    catch (DriverException $e) {
-      // This will happen at least in some version here if the session has not
-      // been started yet.
-      return;
-    }
+    public function lookForJsErrors(AfterStepScope $scope)
+    {
+      // No steps, nothing to do.
+        if (!$scope->getStep()) {
+            return;
+        }
+        $driver = $this->getSession()->getDriver();
+        if (!($driver instanceof Selenium2Driver)) {
+          // Only works in browsers.
+            return;
+        }
+      // If the webdriver session has not started, probably means we are not
+      // navigating in a context where we can actually evaluate any scripts at
+      // all. This AfterStep will also trigger on steps in a background, for
+      // example stuff like "Given a node with title something", which of course
+      // will not let us have a browser window to check if there are any errors,
+      // even if the driver of the session technically is a Selenium2Driver.
+        try {
+            if (!$driver->getWebDriverSession()) {
+                return;
+            }
+        } catch (DriverException $e) {
+          // This will happen at least in some version here if the session has not
+          // been started yet.
+            return;
+        }
 
-    try {
-      $errors = $this->getSession()->evaluateScript("return window.jsErrors");
-    } catch (\Exception $e) {
-      // output where the error occurred for debugging purposes
-      echo $this->scenarioData;
-      throw $e;
-    }
+        try {
+            $errors = $this->getSession()->evaluateScript("return window.jsErrors");
+        } catch (\Exception $e) {
+          // output where the error occurred for debugging purposes
+            echo $this->scenarioData;
+            throw $e;
+        }
 
-    if (!$errors || empty($errors)) {
-      return;
-    }
-
-    $file = sprintf("%s:%d", $scope->getFeature()->getFile(), $scope->getStep()->getLine());
-    $message = sprintf("Found %d javascript error%s", count($errors), count($errors) > 0 ? 's' : '');
+        if (!$errors || empty($errors)) {
+            return;
+        }
 
-    echo '-------------------------------------------------------------' . PHP_EOL;
-    echo $file . PHP_EOL;
-    echo $message . PHP_EOL;
-    echo '-------------------------------------------------------------' . PHP_EOL;
+        $file = sprintf("%s:%d", $scope->getFeature()->getFile(), $scope->getStep()->getLine());
+        $message = sprintf("Found %d javascript error%s", count($errors), count($errors) > 0 ? 's' : '');
 
-    foreach ($errors as $index => $error) {
-      echo sprintf("   #%d: %s", $index, $error) . PHP_EOL;
-    }
+        echo '-------------------------------------------------------------' . PHP_EOL;
+        echo $file . PHP_EOL;
+        echo $message . PHP_EOL;
+        echo '-------------------------------------------------------------' . PHP_EOL;
 
-    throw new \Exception($message);
-  }
+        foreach ($errors as $index => $error) {
+            echo sprintf("   #%d: %s", $index, $error) . PHP_EOL;
+        }
 
+        throw new \Exception($message);
+    }
 }
diff --git a/tests/.gitkeep b/tests/.gitkeep
new file mode 100644
index 0000000..e69de29