Add unit tests

test_jardin.py

@@ -0,0 +1,13 @@
+import unittest
+from unittest import mock
+
+import jardin
+
+class TestJardin(unittest.TestCase):
+    @mock.patch("webdriver.Firefox")
+    def test_initialize_webdriver(self, mockFirefox):
+        jardin.initialize_webdriver()
+
+        mockFirefox.assert_called_once()
+
+