diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 0000000..320e6df
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,26 @@
+name: Run pytest tests
+
+on: 
+  pull_request:
+    branches: [ main ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10"]
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest
+    - name: Pytest summary
+      uses: dariocurr/pytest-summary@v2
+      with:
+        paths: my_code.py
+        
diff --git a/my_code.py b/my_code.py
index dbdeadf..251af5b 100644
--- a/my_code.py
+++ b/my_code.py
@@ -12,3 +12,14 @@ def fix_phone_num(phone_num_to_fix):
 
 def test_fix_phone_num():
   assert fix_phone_num("5125558823") == '(512) 555 8823'
+  assert fix_phone_num("5554429876") == '(555) 442 9876'
+  assert fix_phone_num("3216543333") == '(321) 654 3333'
+  
+def fix_dash_paranthesis():
+  assert fix_phone_num("555-442-98761") = '(555) 442 9876'
+  assert fix_phone_num("(321) 654 3333") = '(321) 654 3333'
+  assert 9 < 3
+  assert 4 > 8
+  assert True == False
+  
+