empty assertions

tests/test_agent_tracing.py

@@ -9,7 +9,7 @@ from agents import Agent, RunConfig, Runner, trace
 
 from .fake_model import FakeModel
 from .test_responses import get_text_message
-from .testing_processor import fetch_normalized_spans, fetch_traces
+from .testing_processor import assert_no_traces, fetch_normalized_spans, fetch_traces
 
 
 @pytest.mark.asyncio
@@ -164,7 +164,7 @@ async def test_parent_disabled_trace_disabled_agent_trace():
 
         await Runner.run(agent, input="first_test")
 
-    assert fetch_normalized_spans() == snapshot([])
+    assert_no_traces()
 
 
 @pytest.mark.asyncio
@@ -178,7 +178,7 @@ async def test_manual_disabling_works():
 
     await Runner.run(agent, input="first_test", run_config=RunConfig(tracing_disabled=True))
 
-    assert fetch_normalized_spans() == snapshot([])
+    assert_no_traces()
 
 
 @pytest.mark.asyncio
@@ -370,8 +370,7 @@ async def test_parent_disabled_trace_disables_streaming_agent_trace():
         async for _ in x.stream_events():
             pass
 
-    traces = fetch_traces()
-    assert len(traces) == 0, f"Expected 0 traces, got {len(traces)}"
+    assert_no_traces()
 
 
 @pytest.mark.asyncio
@@ -392,5 +391,4 @@ async def test_manual_streaming_disabling_works():
     async for _ in x.stream_events():
         pass
 
-    traces = fetch_traces()
-    assert len(traces) == 0, f"Expected 0 traces, got {len(traces)}"
+    assert_no_traces()

tests/test_responses_tracing.py

@@ -7,7 +7,7 @@ from agents import ModelSettings, ModelTracing, OpenAIResponsesModel, trace
 from agents.tracing.span_data import ResponseSpanData
 from tests import fake_model
 
-from .testing_processor import fetch_normalized_spans, fetch_ordered_spans
+from .testing_processor import fetch_normalized_spans, fetch_ordered_spans, assert_no_spans
 
 
 class DummyTracing:
@@ -89,9 +89,8 @@ async def test_non_data_tracing_doesnt_set_response_id(monkeypatch):
         [{"workflow_name": "test", "children": [{"type": "response"}]}]
     )
 
-    spans = fetch_ordered_spans()
-    assert len(spans) == 1
-    assert spans[0].span_data.response is None
+    [span] = fetch_ordered_spans()
+    assert span.span_data.response is None
 
 
 @pytest.mark.allow_call_model_methods
@@ -116,9 +115,7 @@ async def test_disable_tracing_does_not_create_span(monkeypatch):
 
     assert fetch_normalized_spans() == snapshot([{"workflow_name": "test"}])
 
-    spans = fetch_ordered_spans()
-    assert len(spans) == 0
-
+    assert_no_spans()
 
 @pytest.mark.allow_call_model_methods
 @pytest.mark.asyncio
@@ -190,10 +187,9 @@ async def test_stream_non_data_tracing_doesnt_set_response_id(monkeypatch):
         [{"workflow_name": "test", "children": [{"type": "response"}]}]
     )
 
-    spans = fetch_ordered_spans()
-    assert len(spans) == 1
-    assert isinstance(spans[0].span_data, ResponseSpanData)
-    assert spans[0].span_data.response is None
+    [span] = fetch_ordered_spans()
+    assert isinstance(span.span_data, ResponseSpanData)
+    assert span.span_data.response is None
 
 
 @pytest.mark.allow_call_model_methods
@@ -226,5 +222,4 @@ async def test_stream_disabled_tracing_doesnt_create_span(monkeypatch):
 
     assert fetch_normalized_spans() == snapshot([{"workflow_name": "test"}])
 
-    spans = fetch_ordered_spans()
-    assert len(spans) == 0
+    assert_no_spans()

tests/test_tracing.py

@@ -24,6 +24,7 @@ from .testing_processor import (
     fetch_normalized_spans,
     fetch_ordered_spans,
     fetch_traces,
+    assert_no_traces,
 )
 
 ### HELPERS
@@ -281,10 +282,7 @@ def disabled_tracing():
 
 def test_disabled_tracing():
     disabled_tracing()
-
-    spans, traces = fetch_ordered_spans(), fetch_traces()
-    assert len(spans) == 0
-    assert len(traces) == 0
+    assert_no_traces()
 
 
 def enabled_trace_disabled_span():
@@ -374,9 +372,7 @@ async def test_noop_span_doesnt_record():
         with custom_span(name="span_1") as span:
             span.set_error(SpanError(message="test", data={}))
 
-    spans, traces = fetch_ordered_spans(), fetch_traces()
-    assert len(spans) == 0
-    assert len(traces) == 0
+    assert_no_traces()
 
     assert t.export() is None
     assert span.export() is None

tests/testing_processor.py

@@ -80,6 +80,19 @@ def fetch_events() -> list[TestSpanProcessorEvent]:
     return SPAN_PROCESSOR_TESTING._events
 
 
+def assert_no_spans():
+    spans = fetch_ordered_spans()
+    if spans:
+        raise AssertionError(f"Expected 0 spans, got {len(spans)}")
+
+
+def assert_no_traces():
+    traces = fetch_traces()
+    if traces:
+        raise AssertionError(f"Expected 0 traces, got {len(traces)}")
+    assert_no_spans()
+
+
 def fetch_normalized_spans(keep_span_id: bool = False):
     nodes: dict[tuple[str, str | None], dict[str, Any]] = {}
     traces = []
@@ -92,8 +105,7 @@ def fetch_normalized_spans(keep_span_id: bool = False):
         nodes[(trace_obj.trace_id, None)] = trace
         traces.append(trace)
 
-    if not traces:
-        assert not fetch_ordered_spans()
+    assert traces, "Use assert_no_traces() to check for empty traces"
 
     for span_obj in fetch_ordered_spans():
         span = span_obj.export()