pmacs/tests
Levi Neuwirth 39ad43db5a
fix(git): keep a repository root that ends in a carriage return whole
`strip_output_terminator` stripped `\r?\n$`, and a carriage return is as
legal a byte in a POSIX directory name as a newline is. For a repository
rooted at a directory named `trailing\r`, `rev-parse --show-toplevel`
prints the path's own `0d` and then its own `0a` terminator, and a strip
tolerant of an optional preceding carriage return cannot tell those two
bytes apart --- so it took both. The root resolved as `trailing`, and
every command afterwards ran with a `-C` and a cwd naming a directory
that does not exist: the same defect the previous commit at this call
site fixed, one byte over.

Exactly one trailing `\n` is now removed, by an explicit last-byte test
rather than an anchored pattern. Both of this function's bugs lived in a
pattern, and the third answer to the same question should not be a
cleverer one.

`-z` was CHECKED against the installed git rather than assumed, and must
NOT be used. `git rev-parse` has no `-z` option at all on git 2.55: it
is absent from the manual, `--parseopt -z` errors with "unknown switch",
and in ordinary mode `rev-parse` treats `-z` as an unrecognized flag
argument and echoes a literal `-z\n` onto stdout AHEAD of the toplevel
--- exit code 0, corrupted output, silent. `--show-toplevel` applies no
C quoting either, not even under `core.quotePath=true`. There is
therefore no unambiguous output representation to prefer over removing
the one byte git appended.

`first_line` is untouched, for the reason the previous commit recorded:
its three callers all feed the single-line status band, where taking the
first line is right.

Witnessed by `g6_14d` end to end, not at the parser: the fixture really
creates directories named `trailing\r` and `nl\nand-trailing\r`, the
real `git` resolves them, and the assertion is on the cwd of the status
spawn the module actually made, plus real rows in the panel and a RET
that opens the file the row names. The second case sends both hazards in
together because a root may hold both and neither fix may mask the
other. `g6_14c` now reaches that chain through the shared
`assert_root_resolves_whole` rather than keeping a second copy of it,
and the helper binds `pmacs.project.set_search_boundary` to the fixture
through `open_panel` --- R8's lesson, and a root fixture is exactly that
hazard's shape.

Mutation-verified: restoring `\r?\n$` fails `g6_14d` at `<tmp>/trailing`
against `<tmp>/trailing\r` while `g6_14c` still passes, which is exactly
the byte that separates the two fixes.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016bqGA6s9tTUFzYpbeW3tai
2026-08-09 18:41:22 +02:00
..
common test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
fixtures V0.2-prerequisite pull-forward + M10.11 clean audit round 2026-05-18 10:31:31 -04:00
support docs: record the pipe-masking gate trap in the handoff 2026-07-29 12:25:29 -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
ambient_isolation_acceptance.rs fix(isolation): the isolation suite must not itself be ambient 2026-07-31 19:46:18 -04:00
auto_indent_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
auto_indent_crdt_acceptance.rs fix(lint): make the crdt targets pass clippy for the first time 2026-08-01 09:38:36 -04:00
auto_pair_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
auto_pair_crdt_acceptance.rs feat(edit): auto-pairing (Arc 2) 2026-07-11 17:11:56 +01:00
autosave_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
bottom_panel_stage1_acceptance.rs test(panel): pin that the OMITTED default degrades on a pre-panel frontend 2026-08-03 11:16:08 -04:00
bottom_panel_stage2a_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
bottom_panel_stage2b_daemon_acceptance.rs fix(tests): eight version assertions the v22 bump broke, five of them defects 2026-08-07 20:15:33 +02:00
bottom_panel_stage2b_gpu_acceptance.rs fix(tests): eight version assertions the v22 bump broke, five of them defects 2026-08-07 20:15:33 +02:00
bottom_panel_stage2b_protocol_acceptance.rs fix(tests): eight version assertions the v22 bump broke, five of them defects 2026-08-07 20:15:33 +02:00
comment_toggle_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
compile_mode_acceptance.rs feat(view): horizontal scroll, text and decorations together 2026-08-07 22:43:17 +02:00
compile_mode_crdt_acceptance.rs review round 1: the crdt suite Stage 3 missed, and two stale explanations 2026-08-04 12:08:28 +02:00
completion_popup_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
config_registry_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
cua_region_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
desktop_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
dired_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
discovery_acceptance.rs fix(help): forwarders must work programmatically, not only from M-x 2026-07-31 20:31:00 -04:00
editops_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
find_file_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
folding_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
folding_stage2_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
full_grid_resync_acceptance.rs fix(frontend): honor full_grid — the flag existed and nothing read it 2026-08-06 15:05:59 +02:00
gate_script_acceptance.rs build: scripts/gate — a target dir per worktree, and one gate suite (#225) 2026-08-09 09:43:33 +00:00
git_status_stage1_acceptance.rs fix(git): keep a repository root that ends in a carriage return whole 2026-08-09 18:41:22 +02:00
gpu_font_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
gpu_initial_target_acceptance.rs Implement session-scoped GPU initial targets 2026-07-23 19:03:25 -04:00
gpu_invocation_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
gui_zoom_acceptance.rs docs(zoom): the ties both round up, they do not oppose 2026-08-06 17:50:03 +02:00
horizontal_scroll_acceptance.rs docs(test): five adopters, four of them decorator families 2026-08-07 22:49:59 +02:00
injection_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
journey_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
kill_ring_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
lean4_server_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
lean4_stage1_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
lean_input_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
line_wrap_acceptance.rs fix(editor): the renderer never got the mode everything else was reading 2026-08-07 18:48:11 +02:00
listview_acceptance.rs feat(view): horizontal scroll, text and decorations together 2026-08-07 22:43:17 +02:00
long_line_readable_acceptance.rs feat(view): horizontal scroll, text and decorations together 2026-08-07 22:43:17 +02:00
lsp_dispatch_seams_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
lsp_multi_root_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
lsp_spawn_guidance_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m3_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m4_acceptance.rs fix(tests): bound the LSP fixture's project detection — retires R8 (#226) 2026-08-09 08:54:06 +00:00
m5_5_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m5_6_acceptance.rs Initial commit: v0.1.0 2026-05-03 19:51:06 -04:00
m5_7_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m5_8_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m5_perf_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m6_4_repl_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m6_5_repl_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m6_7_scrollback_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m6_8_multi_repl_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m6_perf_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -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 test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -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 test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -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 test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m8_3_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m8_5_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m8_6_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m8_7_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m8_9_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m8_10_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_1_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_2_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_3_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_4_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_5_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_6_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_7_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
m9_8_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -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 test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
mode_system_wiring_acceptance.rs Keep the v21 panel wire dark for v20 clients 2026-07-28 14:08:17 -04:00
overlay_reattach_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
persistence_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
query_replace_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
resource_reconciliation_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
save_clobber_guard_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
statusline_segments_acceptance.rs fix(tests): eight version assertions the v22 bump broke, five of them defects 2026-08-07 20:15:33 +02:00
tab_width_acceptance.rs feat(view): horizontal scroll, text and decorations together 2026-08-07 22:43:17 +02:00
terminal_config_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
terminal_copy_mode_acceptance.rs feat(view): horizontal scroll, text and decorations together 2026-08-07 22:43:17 +02:00
theme_faces_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
typed_edit_chain_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
vterm_stage1_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00
vterm_stage2_acceptance.rs fix(test): retire R2 and R4 — two readiness predicates weaker than their assertions 2026-08-05 13:41:05 +02:00
vterm_stage3_acceptance.rs fix(tests): eight version assertions the v22 bump broke, five of them defects 2026-08-07 20:15:33 +02:00
worker_shutdown_acceptance.rs test(isolation): migrate the corpus off the ambient roots 2026-07-31 18:48:45 -04:00