pact-foundation / pact-go / 26476079943

28%

master: 28%

Pull #580

github

feat(provider): add SoftFail mode for downstream-gated verification

Callers that have a downstream authoritative gate (e.g. a Pact Broker
can-i-merge / can-i-deploy check) want verification mismatches to be
recorded to the broker and reported in the test framework, but NOT to
fail CI locally — the downstream gate makes the real decision.

Previously the only way to suppress local failure was at the shell
layer (turning off pipefail around `go test`), which also silenced
verifier panics, broker auth failures, and any other infrastructure
problem. That made "tests didn't actually run but CI is green" a
common failure mode.

New behavior — `VerifyRequest.SoftFail` (default false, preserves
existing behavior):

  - SoftFail = false (default):
      err == nil           → subtest PASS
      err != nil           → subtest FAIL (t.Error)
  - SoftFail = true:
      err == nil           → subtest PASS
      ErrVerifierFailed    → subtest SKIP (t.Skipf, message preserved)
      any other err        → subtest FAIL (t.Error)

Infrastructure errors (ErrVerifierFailedToRun, panics, broker auth)
always fail the subtest, regardless of SoftFail — they signal the
verifier could not produce a result for the downstream gate to act on.

The discrimination uses `errors.Is(err, native.ErrVerifierFailed)`,
which leverages the mutual-exclusivity invariant of the two verifier
sentinels documented in #579.

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