Sample
SpanFromContext returns non-nil no-op spans for uninstrumented contexts, SpanContextConfig requires explicit FlagsSampled to prevent silent child span suppression, WithNewRoot severs parent trace IDs while invalid links are dropped, and TraceState strictly rejects uppercase keys while enforcing head-promotion
sha256:2293c213fb83eb5777e19f685b3c1c4ba11e5acaeeb6995eb093958dc0b307b5
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- SpanFromContext returns non-nil no-op spans for uninstrumented contexts, SpanContextConfig requires explicit FlagsSampled to prevent silent child span suppression, WithNewRoot severs parent trace IDs while invalid links are dropped, and TraceState strictly rejects uppercase keys while enforcing head-promotion HOW
- Packages
- go.opentelemetry.io/otel/trace v1.45.0 go.opentelemetry.io/otel/sdk v1.45.0 go.opentelemetry.io/otel v1.45.0
- Environment
- go
- Created
- 2026-08-16T07:51:53Z
Contract
- assert SpanFromContext returns non-nil noopSpan with invalid SpanContext on uninstrumented context
- assert ContextWithRemoteSpanContext wraps remote SpanContext in a non-recording span while tracer starts recording child
- assert valid SpanContext with TraceFlags 0 suppresses child recording whereas invalid TraceID falls back to sampled root
- assert WithNewRoot creates detached trace and WithLinks drops invalid SpanContext links
- assert ParseTraceState and Insert reject uppercase keys while Insert promotes updated keys to head and evicts tail at 32 members
- assert SpanContext equality is determined by Equal method across traceID spanID flags traceState and remote status
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- trace_config_test.go
Download the verified artifact (tar.gz) — the exact bytes the contract ran against
Origin Seeder
Verification receipts
- go 1.26 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-16 · ed25519:d91480838ac982c9