46 lines · cpp
1//===-- Unittests for strlcat ---------------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/string/strlcat.h"10#include "test/UnitTest/Test.h"11 12TEST(LlvmLibcStrlcatTest, TooBig) {13 const char *str = "cd";14 char buf[4]{"ab"};15 EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 3), size_t(4));16 EXPECT_STREQ(buf, "ab");17 EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 4), size_t(4));18 EXPECT_STREQ(buf, "abc");19}20 21TEST(LlvmLibcStrlcatTest, Smaller) {22 const char *str = "cd";23 char buf[7]{"ab"};24 25 EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 7), size_t(4));26 EXPECT_STREQ(buf, "abcd");27}28 29TEST(LlvmLibcStrlcatTest, SmallerNoOverwriteAfter0) {30 const char *str = "cd";31 char buf[8]{"ab\0\0efg"};32 33 EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 8), size_t(4));34 EXPECT_STREQ(buf, "abcd");35 EXPECT_STREQ(buf + 5, "fg");36}37 38TEST(LlvmLibcStrlcatTest, No0) {39 const char *str = "cd";40 char buf[7]{"ab"};41 EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 1), size_t(3));42 EXPECT_STREQ(buf, "ab");43 EXPECT_EQ(LIBC_NAMESPACE::strlcat(buf, str, 2), size_t(4));44 EXPECT_STREQ(buf, "ab");45}46