Add tests and continuous integration

.github/workflows/ci.yml

@@ -0,0 +1,25 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python-version: [3.8]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest
+    - name: Run tests
+      run: |
+        pytest

README.md

@@ -1,5 +1,7 @@
 # GitHub Copilot: Your AI-Powered Coding Partner
 
+[![Build Status](https://github.com/MattUebel/copilot-presentation/actions/workflows/ci.yml/badge.svg)](https://github.com/MattUebel/copilot-presentation/actions)
+
 Welcome to the staging area for materials related to the talk, **"GitHub Copilot: Your AI-Powered Coding Partner."** This repository serves as a central hub for content, resources, and links that will help you understand and utilize GitHub Copilot in your coding workflows.
 
 ## Overview

tests/test_example1.py

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+import pytest
+from presentation.examples.example1 import add, subtract, multiply, divide
+
+def test_add():
+    assert add(2, 3) == 5
+    assert add(-1, 1) == 0
+    assert add(0, 0) == 0
+
+def test_subtract():
+    assert subtract(5, 3) == 2
+    assert subtract(0, 1) == -1
+    assert subtract(-1, -1) == 0
+
+def test_multiply():
+    assert multiply(2, 3) == 6
+    assert multiply(-1, 1) == -1
+    assert multiply(0, 100) == 0
+
+def test_divide():
+    assert divide(6, 3) == 2
+    assert divide(-4, 2) == -2
+    assert divide(5, 2) == 2.5
+
+    with pytest.raises(ValueError):
+        divide(10, 0)

tests/test_example2.py

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+import unittest
+from presentation.examples.example2 import greet, farewell
+
+class TestExample2(unittest.TestCase):
+
+    def test_greet(self):
+        self.assertEqual(greet("Alice"), "Hello, Alice!")
+        self.assertEqual(greet("Bob"), "Hello, Bob!")
+        self.assertEqual(greet(""), "Hello, !")
+
+    def test_farewell(self):
+        self.assertEqual(farewell("Alice"), "Goodbye, Alice!")
+        self.assertEqual(farewell("Bob"), "Goodbye, Bob!")
+        self.assertEqual(farewell(""), "Goodbye, !")
+
+if __name__ == '__main__':
+    unittest.main()