The number nobody had. The engine harness is structurally blind to
viewport*.rs, workspace*.rs and friends, so "97.14% covered" has always
been a statement about the smaller half. With the Makepad Linux packages
installed, the real crate builds and its tests run under
-C instrument-coverage, which makes the other half measurable in about
six minutes.
10,714 lines. 13.15% covered. 9,305 never executed by any test.
viewport_input.rs 736 lines 0.00%
viewport_render.rs 2,083 lines 0.00%
workspace_actions.rs 690 lines 0.00%
cad_editor_sheet.rs 224 lines 0.00%
viewport_2d.rs 138 lines 0.00%
code_editor.rs 67 lines 0.00%
viewport.rs 3,548 lines 14.37%
workspace.rs 2,462 lines 14.18%
script_bindings.rs 724 lines 71.27%
viewport_input.rs is every click, drag, modifier and keystroke the
editor handles, and not one line of it has ever run in a test.
viewport_render.rs is every draw call.
This reframes the six sessions of engine work above it. 1044 green tests
and a 97% engine coexist with an input layer nothing has touched. Those
facts were never in tension — they were just never on the same page,
because the tool that produced the good number could not see the bad
one. A coverage figure that excludes the risky half is not a summary,
it is an average with the interesting term deleted.
The new script reports the widget files ONLY, on purpose. Folding them
into one number would let a 97% engine hide a 0% input layer, which is
the arithmetic this exists to prevent.
No floors yet, deliberately: a floor at 13% reads as a blessing rather
than a debt. The first real input test should set one behind it.
Verified: two runs, cold and warm, same numbers; script cleans its
profraw data on exit and refuses with a useful message when the native
packages or llvm-tools are missing.
