tests: a capture is a delta and a click names its word, so a tagline edit stops rewriting the suite

1 files changed, 20 insertions, 0 deletions

diff --git a/src/CHANGELOG.md b/src/CHANGELOG.md
index 11df45ab..0b7bb12e 100644
--- a/src/CHANGELOG.md
+++ b/src/CHANGELOG.md
@@ -2,6 +2,26 @@
 
 ## 0.0.1
 
+- Snapshot captures are deltas against the previous capture in the same script,
+  and a scripted click may name a word (`press middle @Del 2`, `@Del#2` for the
+  second pane on a row, `@Save-2` for a column beside one) instead of a screen
+  column. Adding one builtin word to a tagline used to rewrite 78 goldens
+  (3,758 lines) and silently move seven scripts onto the wrong word: `tutor.snap`
+  had been clicking `Grep` and asserting a tutor pane, `tagbottomimage.snap`
+  clicked 176 columns from the `Del` it claimed to execute. Seven tests regained
+  their subject, the corpus dropped from 16,700 lines to 5,722, and the same
+  edit now moves 337 lines.
+- `zig build snap -- --update` regenerates in parallel at the widest probe
+  settings and then verifies every golden it just wrote, instead of capturing
+  once, serially, and blessing whatever it saw: 77s to 41s, and a capture that
+  does not reproduce is reported rather than committed.
+- `zig build unit-test -Dtest-filter=<substring>` runs one test. The whole
+  binary is 14s, so a one-line change used to cost the full run; the test
+  runner's own `--test-filter` was silently dropped by the build.
+- A snapshot script covers the `Save` prompt for the first time: armed on a
+  `+New` scratch it draws on the message row, prefilled with the pane's own
+  directory, and submitting it turns the scratch into the file it names.
+
 - `pardes --fs` serves acme's control filesystem over Linux FUSE: a directory
   per pane holding `addr`, `body`, `ctl`, `data`, `errors`, `event`, `rdsel`,
   `tag`, `wrsel`, `xdata`, plus `index`, `cons` and `new/` at the root. A