[Refactor] Converge Pipeline and App classes (#1021)

Co-authored-by: Deven Patel <deven298@yahoo.com>

tests/test_app.py

@@ -0,0 +1,110 @@
+import os
+
+import pytest
+import yaml
+
+from embedchain import App
+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
+
+
+@pytest.fixture
+def app():
+    os.environ["OPENAI_API_KEY"] = "test_api_key"
+    return App()
+
+
+def test_app(app):
+    assert isinstance(app.llm, BaseLlm)
+    assert isinstance(app.db, BaseVectorDB)
+    assert isinstance(app.embedding_model, BaseEmbedder)
+
+
+class TestConfigForAppComponents:
+    def test_constructor_config(self):
+        collection_name = "my-test-collection"
+        db = ChromaDB(config=ChromaDbConfig(collection_name=collection_name))
+        app = App(db=db)
+        assert app.db.config.collection_name == collection_name
+
+    def test_component_config(self):
+        collection_name = "my-test-collection"
+        database = ChromaDB(config=ChromaDbConfig(collection_name=collection_name))
+        app = App(db=database)
+        assert app.db.config.collection_name == collection_name
+
+
+class TestAppFromConfig:
+    def load_config_data(self, yaml_path):
+        with open(yaml_path, "r") as file:
+            return yaml.safe_load(file)
+
+    def test_from_chroma_config(self, mocker):
+        mocker.patch("embedchain.vectordb.chroma.chromadb.Client")
+
+        yaml_path = "configs/chroma.yaml"
+        config_data = self.load_config_data(yaml_path)
+
+        app = App.from_config(config_path=yaml_path)
+
+        # Check if the App instance and its components were created correctly
+        assert isinstance(app, App)
+
+        # Validate the AppConfig values
+        assert app.config.id == config_data["app"]["config"]["id"]
+        # Even though not present in the config, the default value is used
+        assert app.config.collect_metrics is True
+
+        # Validate the LLM config values
+        llm_config = config_data["llm"]["config"]
+        assert app.llm.config.temperature == llm_config["temperature"]
+        assert app.llm.config.max_tokens == llm_config["max_tokens"]
+        assert app.llm.config.top_p == llm_config["top_p"]
+        assert app.llm.config.stream == llm_config["stream"]
+
+        # Validate the VectorDB config values
+        db_config = config_data["vectordb"]["config"]
+        assert app.db.config.collection_name == db_config["collection_name"]
+        assert app.db.config.dir == db_config["dir"]
+        assert app.db.config.allow_reset == db_config["allow_reset"]
+
+        # Validate the Embedder config values
+        embedder_config = config_data["embedder"]["config"]
+        assert app.embedding_model.config.model == embedder_config["model"]
+        assert app.embedding_model.config.deployment_name == embedder_config.get("deployment_name")
+
+    def test_from_opensource_config(self, mocker):
+        mocker.patch("embedchain.vectordb.chroma.chromadb.Client")
+
+        yaml_path = "configs/opensource.yaml"
+        config_data = self.load_config_data(yaml_path)
+
+        app = App.from_config(yaml_path)
+
+        # Check if the App instance and its components were created correctly
+        assert isinstance(app, App)
+
+        # Validate the AppConfig values
+        assert app.config.id == config_data["app"]["config"]["id"]
+        assert app.config.collect_metrics == config_data["app"]["config"]["collect_metrics"]
+
+        # Validate the LLM config values
+        llm_config = config_data["llm"]["config"]
+        assert app.llm.config.model == llm_config["model"]
+        assert app.llm.config.temperature == llm_config["temperature"]
+        assert app.llm.config.max_tokens == llm_config["max_tokens"]
+        assert app.llm.config.top_p == llm_config["top_p"]
+        assert app.llm.config.stream == llm_config["stream"]
+
+        # Validate the VectorDB config values
+        db_config = config_data["vectordb"]["config"]
+        assert app.db.config.collection_name == db_config["collection_name"]
+        assert app.db.config.dir == db_config["dir"]
+        assert app.db.config.allow_reset == db_config["allow_reset"]
+
+        # Validate the Embedder config values
+        embedder_config = config_data["embedder"]["config"]
+        assert app.embedding_model.config.deployment_name == embedder_config["deployment_name"]