"showing committed revisions" \
"git rev-list HEAD >current"
+cat >editor <<\EOF
+#!/bin/sh
+sed -e "s/good/bad/g" < "$1" > "$1-"
+mv "$1-" "$1"
+EOF
+chmod 755 editor
+
+cat >msg <<EOF
+A good commit message.
+EOF
+
+test_expect_success \
+ 'editor not invoked if -F is given' '
+ echo "moo" >file &&
+ VISUAL=./editor git commit -a -F msg &&
+ git show -s --pretty=format:"%s" | grep -q good &&
+ echo "quack" >file &&
+ echo "Another good message." | VISUAL=./editor git commit -a -F - &&
+ git show -s --pretty=format:"%s" | grep -q good
+ '
# We could just check the head sha1, but checking each commit makes it
# easier to isolate bugs.