diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
new file mode 100644
index 0000000..8c80a1a
--- /dev/null
+++ b/.github/workflows/python-app.yml
@@ -0,0 +1,45 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
+
+name: Python package
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  
+jobs:
+  build:
+    permissions:
+      contents: read
+      pull-requests: write
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v3
+      with:
+        python-version: "3.10"
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest pytest-cov
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest and calculate coverage
+      run: |
+        pytest --cov-report "xml:coverage.xml"  --cov=.
+    - name: Create Coverage 
+      if: ${{ github.event_name == 'pull_request' }}
+      uses: orgoro/coverage@v3
+      with:
+          coverageFile: coverage.xml
+          token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/__pycache__/functions.cpython-311.pyc b/__pycache__/functions.cpython-311.pyc
new file mode 100644
index 0000000..7092918
Binary files /dev/null and b/__pycache__/functions.cpython-311.pyc differ
diff --git a/__pycache__/test_functions.cpython-311-pytest-7.2.1.pyc b/__pycache__/test_functions.cpython-311-pytest-7.2.1.pyc
new file mode 100644
index 0000000..b0aea52
Binary files /dev/null and b/__pycache__/test_functions.cpython-311-pytest-7.2.1.pyc differ
diff --git a/test_functions.py b/test_functions.py
index ffd7a65..c54f132 100644
--- a/test_functions.py
+++ b/test_functions.py
@@ -4,16 +4,12 @@
 
 
 def test_add():
-    assert add(2, 3) == 5
+    assert add(2, 4) == 6
     assert add("space", "ship") == "spaceship"
 
 
-# def test_subtract():
-#    assert subtract(3,2) == 1
+ def test_subtract():
+    assert subtract(3,2) == 1
+
 
 
-# def test_convert_fahrenheit_to_celsius():
-#    assert f2c(32) == 0
-#    assert f2c(122) == pytest.approx(50)
-#    with pytest.raises(AssertionError):
-#        f2c(-600)