tests: show that hg log --debug output differs from {file*} template keywords
hg log --debug -T xml doesn't differ, but let's test it because we can.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-issue6642.t Thu May 12 13:52:10 2022 +0400
@@ -0,0 +1,37 @@
+hg log --debug shouldn't show different data than {file_*} template keywords
+https://bz.mercurial-scm.org/show_bug.cgi?id=6642
+
+ $ hg init issue6642
+ $ cd issue6642
+
+ $ echo a > a
+ $ hg ci -qAm a
+ $ echo b > b
+ $ hg ci -qAm b
+ $ hg up 0 -q
+ $ echo c > c
+ $ hg ci -qAm c
+ $ hg merge -q
+ $ hg ci -m merge
+
+ $ hg log -GT '{rev} {desc} file_adds: [{file_adds}], file_mods: [{file_mods}], file_dels: [{file_dels}], files: [{files}]\n'
+ @ 3 merge file_adds: [], file_mods: [], file_dels: [], files: []
+ |\
+ | o 2 c file_adds: [c], file_mods: [], file_dels: [], files: [c]
+ | |
+ o | 1 b file_adds: [b], file_mods: [], file_dels: [], files: [b]
+ |/
+ o 0 a file_adds: [a], file_mods: [], file_dels: [], files: [a]
+
+
+ $ hg log -r . --debug | grep files
+ files+: b (known-bad-output !)
+ [1] (missing-correct-output !)
+ $ hg log -r . --debug -T json | egrep '(added|removed|modified)'
+ "added": ["b"], (known-bad-output !)
+ "added": [], (missing-correct-output !)
+ "modified": [],
+ "removed": [],
+ $ hg log -r . --debug -T xml | grep path
+ <paths>
+ </paths>