Add unit test.

.github/workflows/build.yaml

@@ -19,14 +19,17 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest
+        pip install flake8 unittest
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Install bapsicle as module
+      run: |
+        pip install -e .
     - 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
+    - name: Test with unittest
       run: |
-        pytest
+        python -m unittest

tests/test_ui.py

@@ -0,0 +1,41 @@
+from bapsicle import server
+import unittest
+
+
+class TestUI(unittest.TestCase):
+
+    # initialization logic for the test suite declared in the test module
+    # code that is executed before all tests in one test run
+    @classmethod
+    def setUpClass(cls):
+        pass
+
+    # clean up logic for the test suite declared in the test module
+    # code that is executed after all tests in one test run
+    @classmethod
+    def tearDownClass(cls):
+        pass
+
+    # initialization logic
+    # code that is executed before each test
+    def setUp(self):
+        self.app = server.app.test_client()
+        self.app.testing = True
+
+    # clean up logic
+    # code that is executed after each test
+    def tearDown(self):
+        pass
+
+    def test_index_status_code(self):
+        # sends HTTP GET request to the application
+        # on the specified path
+        result = self.app.get('/')
+
+        # assert the status code of the response
+        self.assertEqual(result.status_code, 200)
+
+
+# runs the unit tests in the module
+if __name__ == '__main__':
+    unittest.main()