diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
new file mode 100644
index 0000000..2c94524
--- /dev/null
+++ b/.github/workflows/pull_request.yml
@@ -0,0 +1,44 @@
+name: Run tests
+on:
+  push:
+    branches:
+      - feature/drop-support-php56
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - ready_for_review
+  workflow_dispatch:
+jobs:
+  run-tests:
+    if: ${{ !github.event.pull_request.draft }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Add HTTP basic auth credentials
+        run: echo '${{ secrets.COMPOSER_AUTH_JSON }}' > $GITHUB_WORKSPACE/auth.json
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "7.4"
+          extensions: mbstring
+          tools: composer:v2, phpunit:9.5
+      
+      #TODO test with env github actios
+      - name: Add config/env.test.php
+        run: echo '${{ secrets.ENV_PHP }}' > $GITHUB_WORKSPACE/config/env.test.php
+
+      - name: Install dependencies
+        run: composer update --no-interaction --no-progress --ignore-platform-reqs
+      
+      - name: Static analysis
+        run: composer phpstan
+
+      - name: PHPUnit tests
+        run: composer phpunit
+
+      - name: Remove temp files
+        run: rm -f $GITHUB_WORKSPACE/auth.json, $GITHUB_WORKSPACE/config/env.test.php
\ No newline at end of file
diff --git a/composer.json b/composer.json
index b7cf790..3d40e18 100644
--- a/composer.json
+++ b/composer.json
@@ -25,9 +25,10 @@
     },
     "scripts":{
         "phpstan":"phpstan analyse -c phpstan.neon",
+        "phpunit":"phpunit --configuration phpunit.xml --testdox",
         "test":[
             "@phpstan",
-            "phpunit --configuration phpunit.xml --testdox"
+            "@phpunit"
         ],
         "test:unit":"phpunit --configuration phpunit.xml --testdox --exclude e2e",
         "test:e2e":"phpunit --configuration phpunit.xml --testdox --group e2e",
diff --git a/phpstan.neon b/phpstan.neon
index edb11ff..86baff6 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,7 +1,8 @@
 parameters:
     level: 5
     paths:
-        - /
-    excludePaths:
-        - vendor
+        - src
+        - tests
+        - config
+        - examples
     ignoreErrors:
\ No newline at end of file
diff --git a/src/Getnet/API/TraitEntity.php b/src/Getnet/API/TraitEntity.php
index 422c583..372e946 100644
--- a/src/Getnet/API/TraitEntity.php
+++ b/src/Getnet/API/TraitEntity.php
@@ -6,7 +6,7 @@ trait TraitEntity
 
     /**
      *
-     * @return array
+     * @return mixed
      */
     public function jsonSerialize()
     {