The if send_pii: block (lines 1564–1574) of test_outgoing_client_span_span_streaming has no else branch, so when send_pii=False the test makes no assertions about url.full, url.path, or url.query on inner_client_span. A regression that leaks these PII attributes regardless of the setting would not be detected by the False parametrization. This is a test coverage gap, not a production defect.