feat: Add basic unit test for embedchain (#209)

tests/test_embedchain.py

@@ -0,0 +1,29 @@
+import os
+
+import unittest
+from unittest.mock import patch, MagicMock
+from embedchain import App
+
+
+class TestApp(unittest.TestCase):
+    os.environ["OPENAI_API_KEY"] = "test_key"
+
+    def setUp(self):
+        self.app = App()
+
+    @patch("chromadb.api.models.Collection.Collection.add", MagicMock)
+    def test_add(self):
+        self.app.add("web_page", "https://example.com")
+        self.assertEqual(self.app.user_asks, [["web_page", "https://example.com"]])
+
+    @patch("chromadb.api.models.Collection.Collection.add", MagicMock)
+    def test_query(self):
+        with patch.object(self.app, "retrieve_from_database") as mock_retrieve:
+            mock_retrieve.return_value = "Test context"
+            with patch.object(self.app, "get_llm_model_answer") as mock_answer:
+                mock_answer.return_value = "Test answer"
+                answer = self.app.query("Test query")
+
+        self.assertEqual(answer, "Test answer")
+        mock_retrieve.assert_called_once_with("Test query")
+        mock_answer.assert_called_once()