The widget suites used to talk to whatever listens on the real
endpoint — results depended on the operator's machine (a running
hub fed real data into a11y/responsive runs and its gRPC channel
timers caused the historic flake). Hardening round:
- HubService.instance is now injectable (debugSetInstance);
FakeHubService (test/support/fake_hub.dart) answers every member
the pages touch with healthy-empty defaults and scripts per-RPC
failures (UNIMPLEMENTED / UNAVAILABLE / detached gate) through a
GrpcError-shaped fake. Unimplemented members are recorded and
fail the sweep with the exact list.
- state_matrix_test.dart pins the app-wide invariants for every
sidebar page x hub condition: healthy => no unreachable claims
and no raw error text; hub gone => honest unreachable states;
UNIMPLEMENTED => never 'not reachable' while the sidebar shows
connected; detached gate => plain-language feature-off state.
- a11y + responsive sweeps now inject the fake (hermetic); the
6-minute idle-timer drain workaround is gone with the cause.
Real bugs the new sweep caught immediately:
- every data page (store, doctor, audit, approvals, federation)
folded ANY load failure into 'hub not reachable' — the runs-page
bug class; they now share HubLoadErrorView, which classifies
into unreachable / needs-newer-hub / load-failed-with-copyable-
detail (new generic DE+EN strings)
- the approvals page's hidden tab had no future listener: a load
failure there surfaced as an uncaught async error
- the audit status bar rendered the raw gRPC error wall verbatim;
it now shows the classified friendly headline (still selectable)
Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>