1 //===-- Unittests for strcasestr ------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "src/string/strcasestr.h"
10 #include "test/UnitTest/Test.h"
11
TEST(LlvmLibcStrCaseStrTest,NeedleNotInHaystack)12 TEST(LlvmLibcStrCaseStrTest, NeedleNotInHaystack) {
13 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("abcd", "e"), nullptr);
14 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("ABCD", "e"), nullptr);
15 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("abcd", "E"), nullptr);
16 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("ABCD", "E"), nullptr);
17 }
18
TEST(LlvmLibcStrCaseStrTest,NeedleInMiddle)19 TEST(LlvmLibcStrCaseStrTest, NeedleInMiddle) {
20 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("abcdefghi", "def"), "defghi");
21 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("ABCDEFGHI", "def"), "DEFGHI");
22 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("abcdefghi", "DEF"), "defghi");
23 EXPECT_STREQ(LIBC_NAMESPACE::strcasestr("ABCDEFGHI", "DEF"), "DEFGHI");
24 }
25