1df0dbfcb5
Summary: Having a consistent prefix makes selecting all of the llvm libc tests easier on any platform that is also using the gtest framework. This also modifies the TEST and TEST_F macros to enforce this change moving forward. Reviewers: sivachandra Subscribers:
81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
//===-- Unittests for strrchr ---------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "src/string/strrchr.h"
|
|
#include "utils/UnitTest/Test.h"
|
|
|
|
TEST(LlvmLibcStrRChrTest, FindsFirstCharacter) {
|
|
const char *src = "abcde";
|
|
|
|
// Should return original string since 'a' is the first character.
|
|
ASSERT_STREQ(__llvm_libc::strrchr(src, 'a'), "abcde");
|
|
// Source string should not change.
|
|
ASSERT_STREQ(src, "abcde");
|
|
}
|
|
|
|
TEST(LlvmLibcStrRChrTest, FindsMiddleCharacter) {
|
|
const char *src = "abcde";
|
|
|
|
// Should return characters after (and including) 'c'.
|
|
ASSERT_STREQ(__llvm_libc::strrchr(src, 'c'), "cde");
|
|
// Source string should not change.
|
|
ASSERT_STREQ(src, "abcde");
|
|
}
|
|
|
|
TEST(LlvmLibcStrRChrTest, FindsLastCharacterThatIsNotNullTerminator) {
|
|
const char *src = "abcde";
|
|
|
|
// Should return 'e' and null-terminator.
|
|
ASSERT_STREQ(__llvm_libc::strrchr(src, 'e'), "e");
|
|
// Source string should not change.
|
|
ASSERT_STREQ(src, "abcde");
|
|
}
|
|
|
|
TEST(LlvmLibcStrRChrTest, FindsNullTerminator) {
|
|
const char *src = "abcde";
|
|
|
|
// Should return null terminator.
|
|
ASSERT_STREQ(__llvm_libc::strrchr(src, '\0'), "");
|
|
// Source string should not change.
|
|
ASSERT_STREQ(src, "abcde");
|
|
}
|
|
|
|
TEST(LlvmLibcStrRChrTest, 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(LlvmLibcStrRChrTest, CharacterNotWithinStringShouldReturnNullptr) {
|
|
// Since 'z' is not within the string, should return nullptr.
|
|
ASSERT_STREQ(__llvm_libc::strrchr("123?", 'z'), nullptr);
|
|
}
|
|
|
|
TEST(LlvmLibcStrRChrTest, ShouldFindLastOfDuplicates) {
|
|
// '1' is duplicated in the string, but it should find the last copy.
|
|
ASSERT_STREQ(__llvm_libc::strrchr("abc1def1ghi", '1'), "1ghi");
|
|
|
|
const char *dups = "XXXXX";
|
|
// Should return the last occurrence of 'X'.
|
|
ASSERT_STREQ(__llvm_libc::strrchr(dups, 'X'), "X");
|
|
}
|
|
|
|
TEST(LlvmLibcStrRChrTest, EmptyStringShouldOnlyMatchNullTerminator) {
|
|
// Null terminator should match.
|
|
ASSERT_STREQ(__llvm_libc::strrchr("", '\0'), "");
|
|
// All other characters should not match.
|
|
ASSERT_STREQ(__llvm_libc::strrchr("", 'A'), nullptr);
|
|
ASSERT_STREQ(__llvm_libc::strrchr("", '2'), nullptr);
|
|
ASSERT_STREQ(__llvm_libc::strrchr("", '*'), nullptr);
|
|
}
|