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-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include <stddef.h>
10
11 #ifndef INTEGRATION_DISABLE_PRINTF
12 #include "src/stdio/sprintf.h"
13 #endif
14
15 #include "test/IntegrationTest/test.h"
16
my_streq(const char * lhs,const char * rhs)17 static 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
my_strlen(const char * str)34 static 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
TEST_MAIN(int argc,char ** argv,char ** envp)41 TEST_MAIN(int argc, char **argv, 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_PRINTF
53 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 #endif
59
60 return 0;
61 }
62