1 files changed, 69 insertions, 0 deletions
diff --git a/t/t4126-apply-empty.sh b/t/t4126-apply-empty.sh
new file mode 100755
index 0000000..ece9fae
--- /dev/null
+++ b/t/t4126-apply-empty.sh
@@ -0,0 +1,69 @@
+#!/bin/sh
+
+test_description='apply empty'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+test_expect_success setup '
+	>empty &&
+	git add empty &&
+	test_tick &&
+	git commit -m initial &&
+	git commit --allow-empty -m "empty commit" &&
+	git format-patch --always HEAD~ >empty.patch &&
+	test_write_lines a b c d e >empty &&
+	cat empty >expect &&
+	git diff |
+	sed -e "/^diff --git/d" \
+	    -e "/^index /d" \
+	    -e "s|a/empty|empty.orig|" \
+	    -e "s|b/empty|empty|" >patch0 &&
+	sed -e "s|empty|missing|" patch0 >patch1 &&
+	>empty &&
+	git update-index --refresh
+'
+
+test_expect_success 'apply empty' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply patch0 &&
+	test_cmp expect empty
+'
+
+test_expect_success 'apply empty patch fails' '
+	test_when_finished "git reset --hard" &&
+	test_must_fail git apply empty.patch &&
+	test_must_fail git apply - </dev/null
+'
+
+test_expect_success 'apply with --allow-empty succeeds' '
+	test_when_finished "git reset --hard" &&
+	git apply --allow-empty empty.patch &&
+	git apply --allow-empty - </dev/null
+'
+
+test_expect_success 'apply --index empty' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply --index patch0 &&
+	test_cmp expect empty &&
+	git diff --exit-code
+'
+
+test_expect_success 'apply create' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply patch1 &&
+	test_cmp expect missing
+'
+
+test_expect_success 'apply --index create' '
+	rm -f missing &&
+	test_when_finished "git reset --hard" &&
+	git apply --index patch1 &&
+	test_cmp expect missing &&
+	git diff --exit-code
+'
+
+test_done