From 7212ad067e6efcd8431a9e38f26de45ae21eeafb Mon Sep 17 00:00:00 2001
From: Chris Gyurgyik <37983775+cgyurgyik@users.noreply.github.com>
Date: Fri, 31 Jul 2020 14:57:46 -0400
Subject: [libc] [obvious] Add rest of strrchr test.

---
 libc/test/src/string/strrchr_test.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'libc/test')

diff --git a/libc/test/src/string/strrchr_test.cpp b/libc/test/src/string/strrchr_test.cpp
index 18fddda60087..cf29de220d49 100644
--- a/libc/test/src/string/strrchr_test.cpp
+++ b/libc/test/src/string/strrchr_test.cpp
@@ -49,12 +49,15 @@ TEST(StrRChrTest, FindsNullTerminator) {
   ASSERT_STREQ(src, src_copy);
 }
 
-TEST(StrRChrTest, FindsLastNullTerminator) {
-  const char src[5] = {'a', '\0', 'b', '\0', 'c'};
+TEST(StrRChrTest, FindsLastBehindFirstNullTerminator) {
+  const char src[6] = {'a', 'a', '\0', 'b', '\0', 'c'};
   // 'b' is behind a null terminator, so should not be found.
   ASSERT_STREQ(__llvm_libc::strrchr(src, 'b'), nullptr);
   // Same goes for 'c'.
   ASSERT_STREQ(__llvm_libc::strrchr(src, 'c'), nullptr);
+  
+  // Should find the second of the two a's.
+  ASSERT_STREQ(__llvm_libc::strrchr(src, 'a'), "a");
 }
 
 TEST(StrRChrTest, CharacterNotWithinStringShouldReturnNullptr) {
-- 
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