Add span processor coverage suite

Author: nagkumar91

instrumentation-genai/opentelemetry-instrumentation-openai-agents/tests/test_z_instrumentor_behaviors.py

@@ -0,0 +1,44 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+TESTS_ROOT = Path(__file__).resolve().parent
+stub_path = TESTS_ROOT / "stubs"
+if str(stub_path) not in sys.path:
+    sys.path.insert(0, str(stub_path))
+
+from agents.tracing import (  # noqa: E402
+    get_trace_provider,
+    set_trace_processors,
+)
+
+from opentelemetry.instrumentation.openai_agents import (  # noqa: E402
+    OpenAIAgentsInstrumentor,
+)
+from opentelemetry.instrumentation.openai_agents.package import (  # noqa: E402
+    _instruments,
+)
+from opentelemetry.sdk.trace import TracerProvider  # noqa: E402
+
+
+def test_double_instrument_is_noop():
+    set_trace_processors([])
+    provider = TracerProvider()
+    instrumentor = OpenAIAgentsInstrumentor()
+
+    instrumentor.instrument(tracer_provider=provider)
+    trace_provider = get_trace_provider()
+    assert len(trace_provider._multi_processor._processors) == 1
+
+    instrumentor.instrument(tracer_provider=provider)
+    assert len(trace_provider._multi_processor._processors) == 1
+
+    instrumentor.uninstrument()
+    instrumentor.uninstrument()
+    set_trace_processors([])
+
+
+def test_instrumentation_dependencies_exposed():
+    instrumentor = OpenAIAgentsInstrumentor()
+    assert instrumentor.instrumentation_dependencies() == _instruments