add unit tests

Author: ericdaat

.gitignore

@@ -1,2 +1,4 @@
 docker-volumes
 *.pyc
+venv
+.vscode

tests/test_example_module.py

@@ -0,0 +1,9 @@
+import unittest
+
+from python_package import example_module
+
+
+class TestSomeFunction(unittest.TestCase):
+    def test_basic(self):
+        result = example_module.some_function()
+        self.assertIsInstance(result, str)