1 files changed, 87 insertions, 0 deletions
diff --git a/t/t3434-rebase-i18n.sh b/t/t3434-rebase-i18n.sh
new file mode 100755
index 0000000000..e6fef696bb
--- /dev/null
+++ b/t/t3434-rebase-i18n.sh
@@ -0,0 +1,87 @@
+#!/bin/sh
+#
+# Copyright (c) 2019 Doan Tran Cong Danh
+#
+
+test_description='rebase with changing encoding
+
+Initial setup:
+
+1 - 2              main
+ \
+  3 - 4            first
+   \
+    5 - 6          second
+'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+compare_msg () {
+	iconv -f "$2" -t "$3" "$TEST_DIRECTORY/t3434/$1" >expect &&
+	git cat-file commit HEAD >raw &&
+	sed "1,/^$/d" raw >actual &&
+	test_cmp expect actual
+}
+
+test_expect_success setup '
+	test_commit one &&
+	git branch first &&
+	test_commit two &&
+	git switch first &&
+	test_commit three &&
+	git branch second &&
+	test_commit four &&
+	git switch second &&
+	test_commit five &&
+	test_commit six
+'
+
+test_expect_success 'rebase --rebase-merges update encoding eucJP to UTF-8' '
+	git switch -c merge-eucJP-UTF-8 first &&
+	git config i18n.commitencoding eucJP &&
+	git merge -F "$TEST_DIRECTORY/t3434/eucJP.txt" second &&
+	git config i18n.commitencoding UTF-8 &&
+	git rebase --rebase-merges main &&
+	compare_msg eucJP.txt eucJP UTF-8
+'
+
+test_expect_success 'rebase --rebase-merges update encoding eucJP to ISO-2022-JP' '
+	git switch -c merge-eucJP-ISO-2022-JP first &&
+	git config i18n.commitencoding eucJP &&
+	git merge -F "$TEST_DIRECTORY/t3434/eucJP.txt" second &&
+	git config i18n.commitencoding ISO-2022-JP &&
+	git rebase --rebase-merges main &&
+	compare_msg eucJP.txt eucJP ISO-2022-JP
+'
+
+test_rebase_continue_update_encode () {
+	old=$1
+	new=$2
+	msgfile=$3
+	test_expect_success "rebase --continue update from $old to $new" '
+		(git rebase --abort || : abort current git-rebase failure) &&
+		git switch -c conflict-$old-$new one &&
+		echo for-conflict >two.t &&
+		git add two.t &&
+		git config i18n.commitencoding $old &&
+		git commit -F "$TEST_DIRECTORY/t3434/$msgfile" &&
+		git config i18n.commitencoding $new &&
+		test_must_fail git rebase -m main &&
+		test -f .git/rebase-merge/message &&
+		git stripspace <.git/rebase-merge/message >two.t &&
+		git add two.t &&
+		git rebase --continue &&
+		compare_msg $msgfile $old $new &&
+		: git-commit assume invalid utf-8 is latin1 &&
+		test_cmp expect two.t
+	'
+}
+
+test_rebase_continue_update_encode ISO-8859-1 UTF-8 ISO8859-1.txt
+test_rebase_continue_update_encode eucJP UTF-8 eucJP.txt
+test_rebase_continue_update_encode eucJP ISO-2022-JP eucJP.txt
+
+test_done