62 lines · cpp
1//===-- Unittests for getenv ----------------------------------------------===//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 <stddef.h>10 11#ifndef INTEGRATION_DISABLE_PRINTF12#include "src/stdio/sprintf.h"13#endif14 15#include "test/IntegrationTest/test.h"16 17static bool my_streq(const char *lhs, const char *rhs) {18 if (lhs == rhs)19 return true;20 if (((lhs == static_cast<char *>(nullptr)) &&21 (rhs != static_cast<char *>(nullptr))) ||22 ((lhs != static_cast<char *>(nullptr)) &&23 (rhs == static_cast<char *>(nullptr)))) {24 return false;25 }26 const char *l, *r;27 for (l = lhs, r = rhs; *l != '\0' && *r != '\0'; ++l, ++r)28 if (*l != *r)29 return false;30 31 return *l == '\0' && *r == '\0';32}33 34static int my_strlen(const char *str) {35 const char *other = str;36 while (*other)37 ++other;38 return static_cast<int>(other - str);39}40 41TEST_MAIN(int argc, char **argv, [[maybe_unused]] char **envp) {42 ASSERT_EQ(argc, 5);43 ASSERT_TRUE(my_streq(argv[1], "%s %c %d"));44 ASSERT_EQ(my_strlen(argv[1]), 8);45 ASSERT_TRUE(my_streq(argv[2], "First arg"));46 ASSERT_EQ(my_strlen(argv[2]), 9);47 ASSERT_TRUE(my_streq(argv[3], "a"));48 ASSERT_EQ(my_strlen(argv[3]), 1);49 ASSERT_TRUE(my_streq(argv[4], "0"));50 ASSERT_EQ(my_strlen(argv[4]), 1);51 52#ifndef INTEGRATION_DISABLE_PRINTF53 char buf[100];54 ASSERT_EQ(55 LIBC_NAMESPACE::sprintf(buf, argv[1], argv[2], argv[3][0], argv[4][0]),56 14);57 ASSERT_TRUE(my_streq(buf, "First arg a 48"));58#endif59 60 return 0;61}62