A negative check that reads only the final verdict scores SUCCESS whenever
the client fails to reach the requirement at all: "declined" and "never got
far enough to decide" are the same observation. auth/resource-mismatch
decided on !authorizationRequestMade alone, so a client that threw before
making a single HTTP request passed it.
Gate each verdict on the prerequisite the harness already records:
prm-pathbased-requested for the PRM resource comparison, and
authorization-server-metadata for the RFC 9207 iss comparisons, which
SEP-2468 conditions on the issuer recorded from the validated metadata
document. When the prerequisite is not observed the requirement was never
exercised, so report it via notTestable() (#248) rather than SUCCESS.
auth/metadata-issuer-mismatch already gated on the metadata fetch but
reported the unreached case as a plain violation; it now reports untestable
too. All six checks record propertyReached and stopReason in details.
Adds an inert client and a vitest case, so the checks are shown to catch
something and not merely to avoid false-positiving.
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