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
12TEST(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
19TEST(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

source code of libc/test/src/string/strcasestr_test.cpp