fix(llamaindex): add conftest to disable deepeval evaluators in tests

Prevents deepeval from making real OpenAI API calls during CI,
which causes tests to hang or fail with connection errors.

Made-with: Cursor

Author: adityamehra

instrumentation-genai/opentelemetry-instrumentation-llamaindex/tests/conftest.py

@@ -0,0 +1,25 @@
+"""Test configuration for LlamaIndex instrumentation tests."""
+
+import os
+
+import pytest
+
+from opentelemetry.util.genai import handler as genai_handler
+
+
+@pytest.fixture(autouse=True)
+def disable_deepeval():
+    """Disable deepeval evaluators to prevent real API calls in CI."""
+    original_evals = os.environ.get("OTEL_INSTRUMENTATION_GENAI_EVALS_EVALUATORS")
+
+    os.environ["OTEL_INSTRUMENTATION_GENAI_EVALS_EVALUATORS"] = "none"
+    setattr(genai_handler.get_telemetry_handler, "_default_handler", None)
+
+    yield
+
+    if original_evals is None:
+        os.environ.pop("OTEL_INSTRUMENTATION_GENAI_EVALS_EVALUATORS", None)
+    else:
+        os.environ["OTEL_INSTRUMENTATION_GENAI_EVALS_EVALUATORS"] = original_evals
+
+    setattr(genai_handler.get_telemetry_handler, "_default_handler", None)