From 1e89b6846a1a2597a7e9c4ad23842e6be534b87e Mon Sep 17 00:00:00 2001
From: zhouyh <zhouyihang3@h-partners.com>
Date: Wed, 14 Dec 2022 18:42:49 +0800
Subject: [PATCH] add some testcases for abnormal branches

---
 re2/testing/re2_test.cc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/re2/testing/re2_test.cc b/re2/testing/re2_test.cc
index b1f7d73..51a1739 100644
--- a/re2/testing/re2_test.cc
+++ b/re2/testing/re2_test.cc
@@ -211,6 +211,16 @@ TEST(CheckRewriteString, all) {
   TestCheckRewriteString("a(b)(c)", "f\\oo\\1", false);
 }

+TEST(RE2, Rewrite) {
+  RE2 re("(foo)|(bar)baz");
+  StringPiece group[4];
+  std::string out;
+
+  ASSERT_FALSE(re.Rewrite(&out, "hello\\5", group, arraysize(group)));
+  ASSERT_FALSE(re.Rewrite(&out,"hello\\a", group, arraysize(group)));
+  ASSERT_TRUE(re.Rewrite(&out,"hello\\\\", group, arraysize(group)));
+}
+
 TEST(RE2, Extract) {
   std::string s;

@@ -360,6 +370,8 @@ TEST(RE2, Match) {
   ASSERT_EQ(group[1], "chrisr:9000");
   ASSERT_EQ(group[2], "chrisr");
   ASSERT_EQ(group[3], "9000");
+  ASSERT_FALSE(
+     re.Match(s, 2, 1, RE2::UNANCHORED, group, arraysize(group)));

   std::string all, host;
   int port;
--
2.33.0