t7610-mergetool: use test_cmp instead of test $(cat file) = $txt

diff --git a/t/t3428-rebase-signoff.sh b/t/t3428-rebase-signoff.sh
index 2afb56470184b18da19740f0a68abb31da96fd82..f6993b7e14d91617b337bfaefa717ec8591fb28f 100755 (executable)
--- a/t/t3428-rebase-signoff.sh
+++ b/t/t3428-rebase-signoff.sh
@@ -12,6 +12,13 @@ cat >file <<EOF
 a
 EOF
 
+# Expected commit message for initial commit after rebase --signoff
+cat >expected-initial-signed <<EOF
+Initial empty commit
+
+Signed-off-by: $(git var GIT_COMMITTER_IDENT | sed -e "s/>.*/>/")
+EOF
+
 # Expected commit message after rebase --signoff
 cat >expected-signed <<EOF
 first
@@ -43,4 +50,35 @@ test_expect_success 'rebase --no-signoff does not add a sign-off line' '
        test_cmp expected-unsigned actual
 '
 
+test_expect_success 'rebase --exec --signoff adds a sign-off line' '
+       test_when_finished "rm exec" &&
+       git commit --amend -m "first" &&
+       git rebase --exec "touch exec" --signoff HEAD^ &&
+       test_path_is_file exec &&
+       git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
+       test_cmp expected-signed actual
+'
+
+test_expect_success 'rebase --root --signoff adds a sign-off line' '
+       git commit --amend -m "first" &&
+       git rebase --root --keep-empty --signoff &&
+       git cat-file commit HEAD^ | sed -e "1,/^\$/d" >actual &&
+       test_cmp expected-initial-signed actual &&
+       git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
+       test_cmp expected-signed actual
+'
+
+test_expect_success 'rebase -i --signoff fails' '
+       git commit --amend -m "first" &&
+       git rebase -i --signoff HEAD^ &&
+       git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
+       test_cmp expected-signed actual
+'
+
+test_expect_success 'rebase -m --signoff fails' '
+       git commit --amend -m "first" &&
+       git rebase -m --signoff HEAD^ &&
+       git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
+       test_cmp expected-signed actual
+'
 test_done