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Levi Neuwirth 85a07f378c test(vterm): gate terminal readiness on a file, not on host bytes 
Both earlier attempts in this branch were wrong, and the diagnostic they
added is what proved it: the macOS failure reported a stable
`rendered prefix: 6/15 ("VTERM_")` BEFORE and AFTER the CRLF change, with an
identical cursor, across two completely different child layouts. Identical
truncation under different layouts cannot be a layout problem.

The real mechanism is pinned by the repository's own unit test,
`cell::tests::diff_split_by_unchanged_cell_is_two_spans`: `cell::diff` splits
a run at any cell where `prev == next` and never transmits that cell. So when
a character of the marker already happens to sit at its destination, the host
receives the marker with that byte MISSING, not merely escaped around. The
constant 6 is the distance to the first such hole.

That makes escape-stripped matching unsound in kind rather than merely
insufficient: no matching strategy recovers a byte that was never sent. It is
removed, and `wait_for_output` is strict again. What remains asserted through
host bytes are protocol escapes pmacs writes directly — the OSC 52 clipboard
reply, the alternate-screen and bracketed-paste resets — which are not painted
cells and which the differ never touches.

Readiness now gates on a file the child publishes, the pattern the reliable
sibling test in this file already uses. That the child's output reaches the
SCREEN stays asserted in-process over `snapshot_text`, at the layer that can
actually see it; this test keeps what it uniquely owns, the host lifecycle.

`strip_ansi` and `longest_rendered_prefix` are kept as failure diagnostics
only, and now carry a case pinning the dropped-cell shape so the wrong remedy
is not reached for again. The new readiness wait reports startup breadcrumbs
on timeout; the plain helper reports only the missing path, which is the least
useful thing to know at exactly that moment.

Both the readiness gate and its timeout diagnostic were falsified by pointing
the child at a path the test does not watch.

Test-only; no runtime code.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
 		2026-07-24 14:27:21 -04:00
..
common feat(vterm): protocol v19 terminal frames and a native GPU terminal 2026-07-22 13:28:35 -04:00
fixtures V0.2-prerequisite pull-forward + M10.11 clean audit round 2026-05-18 10:31:31 -04:00
acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
auto_indent_acceptance.rs fix(edit): PR #109 round 1 — shared search invalidation, daemon anchor clear, bounded indent scan 2026-07-10 15:46:36 -04:00
auto_indent_crdt_acceptance.rs feat(edit): auto-indent on newline (Arc 2) 2026-07-10 12:11:05 -04:00
auto_pair_acceptance.rs test(edit): PR #110 round 3 — pin raw-byte predicate posture and top-level sets guard 2026-07-12 16:20:01 +01:00
auto_pair_crdt_acceptance.rs feat(edit): auto-pairing (Arc 2) 2026-07-11 17:11:56 +01:00
autosave_acceptance.rs fix(persistence): adopt clears the old owner's skip cache; failing sweeps are loud 2026-07-09 12:06:49 -04:00
comment_toggle_acceptance.rs feat(edit): comment/uncomment toggle on M-; (Arc 2) 2026-07-09 22:56:44 -04:00
compile_mode_acceptance.rs feat(fold): Stage 2 — grid (daemon-rendered) collapse 2026-07-23 19:24:07 -04:00
compile_mode_crdt_acceptance.rs fix(compile): PR #113 round 4 — column-counted CR rewrites, alt-screen style resync 2026-07-13 17:55:08 +01:00
completion_popup_acceptance.rs fix(lsp): range-only providers, completion-accept boundary, exact codepoint classify 2026-07-09 20:48:08 -04:00
config_registry_acceptance.rs fix(config): reject wrongly-typed spec fields; make trim-on-save buffer-aware 2026-07-21 18:29:18 -04:00
cua_region_acceptance.rs CUA type-over is a single undo step (Q#U1) 2026-06-15 20:00:53 -04:00
desktop_acceptance.rs fix(persistence): reliable daemon gate, unarm, per-pane after-load 2026-07-08 22:27:24 -04:00
editops_acceptance.rs fix(edit): PR #111 round 1 — scalar-valid UTF-8, per-word capitalize, trim error reporting 2026-07-12 16:34:18 +01:00
folding_acceptance.rs test(fold): address PR #142 review round 2 — pin the round-1 wiring 2026-07-23 14:25:28 -04:00
folding_stage2_acceptance.rs Merge githubsucks/main into gpu-initial-target 2026-07-24 10:21:37 -04:00
gpu_font_acceptance.rs test(font): wire acceptance suite + protocol/design docs (items 2-8, 15) 2026-07-18 11:46:44 +01:00
gpu_initial_target_acceptance.rs Implement session-scoped GPU initial targets 2026-07-23 19:03:25 -04:00
gpu_invocation_acceptance.rs fix(daemon): contain failed target sessions 2026-07-24 10:10:31 -04:00
injection_acceptance.rs fix(injections): PR #122 round 2 — sibling precedence, observable cap, docs 2026-07-15 12:07:21 +01:00
kill_ring_acceptance.rs fix(edit): exact effective-edit verification for kill/yank-pop 2026-07-09 20:40:48 -04:00
listview_acceptance.rs feat(panels): listview module, Q#P6 round-trip seam, references panel 2026-07-07 20:15:46 -04:00
m3_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m4_acceptance.rs feat(fold): Stage 2 — grid (daemon-rendered) collapse 2026-07-23 19:24:07 -04:00
m5_5_acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
m5_6_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m5_7_acceptance.rs CI fixes 2026-05-18 12:24:35 -04:00
m5_8_acceptance.rs tests: widen backoff timing signal 2026-05-25 13:32:54 -04:00
m5_perf_acceptance.rs M11.1: semantic-frontend protocol scaffolding (wire + capability) 2026-05-18 19:39:07 -04:00
m6_4_repl_acceptance.rs Fix PTY final-output drain race 2026-05-04 09:44:30 -04:00
m6_5_repl_acceptance.rs tests: quarantine macOS PTY marker cases 2026-05-25 13:02:46 -04:00
m6_7_scrollback_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m6_8_multi_repl_acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
m6_perf_acceptance.rs tests: tune M6 hosted perf profile 2026-05-25 13:43:28 -04:00
m7_3_acceptance.rs Fix CI and Documentation issues 2026-05-04 10:19:19 -04:00
m7_5_acceptance.rs fix(packages): basename-collision reject, SHA-256 cache key, timeout thread join, commit→revision, dead-code (F-005/F-009–F-012) 2026-07-03 18:47:23 -04:00
m7_6_acceptance.rs fix(packages): basename-collision reject, SHA-256 cache key, timeout thread join, commit→revision, dead-code (F-005/F-009–F-012) 2026-07-03 18:47:23 -04:00
m7_7_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_8_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_9_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_10_acceptance.rs fix(packages): basename-collision reject, SHA-256 cache key, timeout thread join, commit→revision, dead-code (F-005/F-009–F-012) 2026-07-03 18:47:23 -04:00
m7_11_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m7_review_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_1_acceptance.rs Pin toolchain to 1.95.0 + mechanical clippy/rustc fixes 2026-05-18 11:38:57 -04:00
m8_1c_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_1d_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_2_acceptance.rs tests: stabilize hosted perf gates 2026-05-25 13:20:18 -04:00
m8_3_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_5_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_6_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_7_acceptance.rs M7 tail: package system, audit lint, lockfile, resolver 2026-05-07 16:50:37 -04:00
m8_9_acceptance.rs test(ci): diagnose the vterm PTY flake; drop the macOS outline budget 2026-07-24 10:34:36 -04:00
m8_10_acceptance.rs V0.2-prerequisite pull-forward + M10.11 clean audit round 2026-05-18 10:31:31 -04:00
m9_1_acceptance.rs T M4.5 async bridge: LSP requests settle async-runtime jobs 2026-05-18 19:36:17 -04:00
m9_2_acceptance.rs style: from_secs(1) for the m9_2 harvest wait (clippy duration units) 2026-06-10 12:07:08 -04:00
m9_3_acceptance.rs Collapse if-let nests into let-chains (MSRV-1.95 collapsible_if sweep) 2026-05-18 14:29:36 -04:00
m9_4_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m9_5_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m9_6_acceptance.rs fix(vterm): harden view anchors and interactive authority 2026-07-22 09:09:44 -04:00
m9_7_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m9_8_acceptance.rs M9 ship gate 2026-05-09 15:04:23 -04:00
m10_2_perf.rs M10.10 ship gate 2026-05-13 16:28:46 -04:00
m10_10_perf.rs M10.10 ship gate 2026-05-13 16:28:46 -04:00
m10_10_postcard_unknown_variant.rs M10.10 ship gate 2026-05-13 16:28:46 -04:00
m10_11_acceptance.rs M11.1: semantic-frontend protocol scaffolding (wire + capability) 2026-05-18 19:39:07 -04:00
m10_11_perf.rs M10.11: adversarial two-laptop acceptance + jitter; the M10 arc verified 2026-05-15 20:51:00 -04:00
m11_5_semantic_acceptance.rs Implement session-scoped GPU initial targets 2026-07-23 19:03:25 -04:00
mode_system_wiring_acceptance.rs test: preserve mode segments with long paths 2026-07-22 08:28:57 -04:00
overlay_reattach_acceptance.rs fix(panels): follow active buffer on semantic frontends; re-attach overlays on switch 2026-07-07 20:46:50 -04:00
persistence_acceptance.rs fix(persistence): symlink confinement, real test-inertness, view_top restore 2026-07-08 18:21:46 -04:00
query_replace_acceptance.rs fix(query-replace): pin the session to its origin buffer (wrong-buffer guard) 2026-07-08 17:07:08 -04:00
save_clobber_guard_acceptance.rs fix(save): refuse to silently clobber a file changed on disk 2026-07-09 14:12:45 -04:00
statusline_segments_acceptance.rs Merge githubsucks/main into gpu-initial-target 2026-07-24 10:21:37 -04:00
tab_width_acceptance.rs feat(fold): Stage 2 — grid (daemon-rendered) collapse 2026-07-23 19:24:07 -04:00
theme_faces_acceptance.rs fix(vterm): harden integrated Stage 2 behavior 2026-07-21 21:38:08 -04:00
vterm_stage1_acceptance.rs fix(vterm): harden integrated Stage 2 behavior 2026-07-21 21:38:08 -04:00
vterm_stage2_acceptance.rs test(vterm): gate terminal readiness on a file, not on host bytes 2026-07-24 14:27:21 -04:00
vterm_stage3_acceptance.rs Merge githubsucks/main into gpu-initial-target 2026-07-24 10:21:37 -04:00
worker_shutdown_acceptance.rs fix(completion): address TUI-validation findings (LSP query gaps, scoping, prefix keys, window scope) 2026-07-07 16:54:14 -04:00