test_cmp expect actual
'
+sha1_file() {
+ echo "$*" | sed "s#..#.git/objects/&/#"
+}
+remove_object() {
+ rm -f $(sha1_file "$*")
+}
+no_reflog() {
+ cp .git/config .git/config.saved &&
+ echo "[core] logallrefupdates = false" >>.git/config &&
+ test_when_finished "mv -f .git/config.saved .git/config" &&
+
+ if test -e .git/logs
+ then
+ mv .git/logs . &&
+ test_when_finished "mv logs .git/"
+ fi
+}
+
+test_expect_success '--amend option with empty author' '
+ git cat-file commit Initial >tmp &&
+ sed "s/author [^<]* </author </" tmp >empty-author &&
+ no_reflog &&
+ sha=$(git hash-object -t commit -w empty-author) &&
+ test_when_finished "remove_object $sha" &&
+ git checkout $sha &&
+ test_when_finished "git checkout Initial" &&
+ echo "Empty author test" >>foo &&
+ test_tick &&
+ ! git commit -a -m "empty author" --amend 2>err &&
+ grep "empty ident" err
+'
+
+test_expect_success '--amend option with missing author' '
+ git cat-file commit Initial >tmp &&
+ sed "s/author [^<]* </author </" tmp >malformed &&
+ no_reflog &&
+ sha=$(git hash-object -t commit -w malformed) &&
+ test_when_finished "remove_object $sha" &&
+ git checkout $sha &&
+ test_when_finished "git checkout Initial" &&
+ echo "Missing author test" >>foo &&
+ test_tick &&
+ ! git commit -a -m "malformed author" --amend 2>err &&
+ grep "empty ident" err
+'
+
test_expect_success '--reset-author makes the commit ours even with --amend option' '
git checkout Initial &&
echo "Test 6" >>foo &&