Fixes for pytest markers and fixtures (#119)

Author: gregorybchris

tests/conftest.py

@@ -24,5 +24,5 @@ def eval_data() -> EvalData:
 def hume_api_key() -> str:
     api_key = os.getenv("HUME_DEV_API_KEY")
     if api_key is None:
-        raise ValueError("Cannot construct HumeBatchClient, HUME_DEV_API_KEY variable not set.")
+        raise ValueError("HUME_DEV_API_KEY environment variable is required.")
     return api_key

tests/pytest.ini

@@ -4,6 +4,6 @@ log_cli_level = INFO
 markers =
     asyncio: Uses async features
     batch: Uses the Hume batch API
-    service: Authenticates with Hume APIs using HUME_PLATFORM_API_KEY environment variable.
+    service: Authenticates with Hume APIs
     stream: Uses the Hume streaming API
     notebook: Example notebook tests