Windows CI proved the default single-plate fixture is not notice-free;
the details box now surfaces the SegmentedCut notice that the old text
wall buried. Assert the real content instead of a clean box.
The dialog buried its verdict in a scrollable text box that restated the
same numbers per plate behind a paragraph-length warning. Replace it
with:
- a bold colored status line stating exactly what Apply will do
(Ready / Blocked / No new cut-offs / Error with the reason);
- the occupied span, used span, separator X and retained tail as
compact caption+value cells with tooltips instead of four sentences;
- the warning paragraph reduced to one amber line with the full text
in its tooltip;
- a per-plate table (cut-offs, spans, tail, Ready/Blocked/No change)
for the All Plates command, replacing repeated text blocks;
- the details box now lists only issues and notices, prefixed by plate
number when planning a nest, instead of echoing every measurement.
Planning, preview, apply and rollback behavior is unchanged; tests and
the cutoffs document follow the new presentation.
TestAssemblySetup set the unhandled-exception mode and a ThreadException
handler from a module initializer. WinForms stores both per thread
(ThreadContext/NativeWindow thread statics), so they applied only to the
runner thread that loaded the assembly, never to the STA threads the
tests run on. There, an exception escaping a window message or a
BeginInvoke/SynchronizationContext callback still opened a modal
ThreadExceptionDialog in an interactive session, or was silently ignored
otherwise; the handler would also have logged and swallowed it.
Replace the fifteen copied RunSta helpers with StaTestThread.Run, which
selects UnhandledExceptionMode.ThrowException on each STA thread before
it creates a window, so the exception propagates to the test body and
fails the test. Each class keeps its own timeout and message; all
threads are now background threads. Remove TestAssemblySetup.
StaTestThreadTests covers a throwing BeginInvoke callback through
StaTestThread (fails with the original exception) and, as a control,
the default mode on a plain STA thread (the exception goes to the
thread's handler and never reaches the test body). Cross-compiled on
Linux; Windows execution is the windows-desktop CI job.
aj