feat: One App (#635)

Co-authored-by: Taranjeet Singh <reachtotj@gmail.com>

tests/apps/test_apps.py

@@ -0,0 +1,60 @@
+import os
+import unittest
+
+from embedchain import App, CustomApp, Llama2App, OpenSourceApp
+from embedchain.config import ChromaDbConfig
+from embedchain.embedder.base import BaseEmbedder
+from embedchain.llm.base import BaseLlm
+from embedchain.vectordb.base import BaseVectorDB
+from embedchain.vectordb.chroma import ChromaDB
+
+
+class TestApps(unittest.TestCase):
+    try:
+        del os.environ["OPENAI_KEY"]
+    except KeyError:
+        pass
+
+    def test_app(self):
+        app = App()
+        self.assertIsInstance(app.llm, BaseLlm)
+        self.assertIsInstance(app.db, BaseVectorDB)
+        self.assertIsInstance(app.embedder, BaseEmbedder)
+
+    def test_custom_app(self):
+        app = CustomApp()
+        self.assertIsInstance(app.llm, BaseLlm)
+        self.assertIsInstance(app.db, BaseVectorDB)
+        self.assertIsInstance(app.embedder, BaseEmbedder)
+
+    def test_opensource_app(self):
+        app = OpenSourceApp()
+        self.assertIsInstance(app.llm, BaseLlm)
+        self.assertIsInstance(app.db, BaseVectorDB)
+        self.assertIsInstance(app.embedder, BaseEmbedder)
+
+    def test_llama2_app(self):
+        os.environ["REPLICATE_API_TOKEN"] = "-"
+        app = Llama2App()
+        self.assertIsInstance(app.llm, BaseLlm)
+        self.assertIsInstance(app.db, BaseVectorDB)
+        self.assertIsInstance(app.embedder, BaseEmbedder)
+
+
+class TestConfigForAppComponents(unittest.TestCase):
+    collection_name = "my-test-collection"
+
+    def test_constructor_config(self):
+        """
+        Test that app can be configured through the app constructor.
+        """
+        app = App(db_config=ChromaDbConfig(collection_name=self.collection_name))
+        self.assertEqual(app.db.config.collection_name, self.collection_name)
+
+    def test_component_config(self):
+        """
+        Test that app can also be configured by passing a configured component to the app
+        """
+        database = ChromaDB(config=ChromaDbConfig(collection_name=self.collection_name))
+        app = App(db=database)
+        self.assertEqual(app.db.config.collection_name, self.collection_name)