. ./test-lib.sh
+# Arguments: [<prefix] [<commit message>] [<commit options>]
+check_summary_oneline() {
+ test_tick &&
+ git commit ${3+"$3"} -m "$2" | head -1 > act &&
+
+ # branch name
+ SUMMARY_PREFIX="$(git name-rev --name-only HEAD)" &&
+
+ # append the "special" prefix, like "root-commit", "detached HEAD"
+ if test -n "$1"
+ then
+ SUMMARY_PREFIX="$SUMMARY_PREFIX ($1)"
+ fi
+
+ # abbrev SHA-1
+ SUMMARY_POSTFIX="$(git log -1 --pretty='format:%h')"
+ echo "[$SUMMARY_PREFIX $SUMMARY_POSTFIX] $2" >exp &&
+
+ test_cmp exp act
+}
+
+test_expect_success 'output summary format' '
+
+ echo new >file1 &&
+ git add file1 &&
+ check_summary_oneline "root-commit" "initial" &&
+
+ echo change >>file1 &&
+ git add file1 &&
+ check_summary_oneline "" "a change"
+'
+
+test_expect_success 'output summary format for commit with an empty diff' '
+
+ check_summary_oneline "" "empty" "--allow-empty"
+'
+
+test_expect_success 'output summary format for merges' '
+
+ git checkout -b recursive-base &&
+ test_commit base file1 &&
+
+ git checkout -b recursive-a recursive-base &&
+ test_commit commit-a file1 &&
+
+ git checkout -b recursive-b recursive-base &&
+ test_commit commit-b file1 &&
+
+ # conflict
+ git checkout recursive-a &&
+ test_must_fail git merge recursive-b &&
+ # resolve the conflict
+ echo commit-a > file1 &&
+ git add file1 &&
+ check_summary_oneline "" "Merge"
+'
+
+output_tests_cleanup() {
+ # this is needed for "do not fire editor in the presence of conflicts"
+ git checkout master &&
+
+ # this is needed for the "partial removal" test to pass
+ git rm file1 &&
+ git commit -m "cleanup"
+}
+
test_expect_success 'the basics' '
+ output_tests_cleanup &&
+
echo doing partial >"commit is" &&
mkdir not &&
echo very much encouraged but we should >not/forbid &&