The full-suite gate caught a real regression: AddOtOpcUaDriverFactories' registration
now resolves ISecretResolver (for Galaxy/OpcUaClient secret: refs, Tasks 7-8), so the
two ResilienceInvokerFactoryRegistrationTests that build a minimal container and resolve
the invoker factory threw 'No service for ISecretResolver'. The real host always
registers it via AddZbSecrets (unconditional, Task 3), and GetRequiredService correctly
fails-fast for a genuinely misconfigured host — so the fix is to complete the test
container with a stub resolver, matching production composition. Test-only.
AddOtOpcUaDriverFactories (the driver-node bootstrap) must bind the real
DriverCapabilityInvokerFactory — not the NullDriverCapabilityInvokerFactory
pass-through — and it must mint a real CapabilityInvoker per instance. This is the
deterministic DI half of the #10 live gate: a refactor dropping back to the
pass-through would make the whole retry/breaker/bulkhead pipeline inert in production
while every pass-through-defaulting unit test stays green. 3 tests (real factory bound,
real invoker minted, shared singletons), non-fixtured. Host.IntegrationTests.
Joseph Doherty