fix and add som usecases

conftest.py

@@ -0,0 +1,20 @@
+import pytest
+import yaml
+
+@pytest.fixture(scope="session")
+def env_config():
+    # A fixture to read the config file once per session.
+    # In a real-world scenario, you might add logic here to select
+    # different config files (e.g., dev, prod) based on a command-line argument.
+    with open('config/dev_env.yaml', 'r') as file:
+        return yaml.safe_load(file)
+
+@pytest.fixture(scope="session")
+def base_url(env_config):
+    """
+    Provides the base URL for the application under test.
+    """
+    url = env_config.get('base_url')
+    if not url:
+        raise Exception("'base_url' not found in config file.")
+    return url