This feature was added in 01143847db (add--interactive:
allow custom diff highlighting programs, 2016-02-27) but
never tested. Let's add a basic test.
Note that we only apply the filter when color is enabled,
so we have to use test_terminal. This is an open limitation
explicitly mentioned in the original commit. So take this
commit as testing the status quo, and not making a statement
on whether we'd want to enhance that in the future.
Signed-off-by: Jeff King <p...@peff.net>
---
t/t3701-add-interactive.sh | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/t/t3701-add-interactive.sh b/t/t3701-add-interactive.sh
index 058698df6a..64fe56c3d5 100755
--- a/t/t3701-add-interactive.sh
+++ b/t/t3701-add-interactive.sh
@@ -392,6 +392,18 @@ test_expect_success TTY 'diffs can be colorized' '
grep "$(printf "\\033")" output
'
+test_expect_success TTY 'diffFilter filters diff' '
+ git reset --hard &&
+
+ echo content >test &&
+ test_config interactive.diffFilter "sed s/^/foo:/" &&
+ printf y | test_terminal git add -p >output 2>&1 &&
+
+ # avoid depending on the exact coloring or content of the prompts,
+ # and just make sure we saw our diff prefixed
+ grep foo:.*content output
+'
+
test_expect_success 'patch-mode via -i prompts for files' '
git reset --hard &&
--
2.16.2.708.g0b2ed7f536
