dlls/msvcrt/tests/misc.c

   1 /*
   2  * Unit tests for miscellaneous msvcrt functions
   3  *
   4  * Copyright 2010 Andrew Nguyen
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/test.h"
  22 #include <errno.h>
  23 #include "msvcrt.h"
  24
  25 static int (__cdecl *prand_s)(unsigned int *);
  26 static int (__cdecl *pmemcpy_s)(void *, MSVCRT_size_t, void*, MSVCRT_size_t);
  27 static int (__cdecl *pI10_OUTPUT)(long double, int, int, void*);
  28
  29 static void init(void)
  30 {
  31     HMODULE hmod = GetModuleHandleA("msvcrt.dll");
  32
  33     prand_s = (void *)GetProcAddress(hmod, "rand_s");
  34     pmemcpy_s = (void*)GetProcAddress(hmod, "memcpy_s");
  35     pI10_OUTPUT = (void*)GetProcAddress(hmod, "$I10_OUTPUT");
  36 }
  37
  38 static void test_rand_s(void)
  39 {
  40     int ret;
  41     unsigned int rand;
  42
  43     if (!prand_s)
  44     {
  45         win_skip("rand_s is not available\n");
  46         return;
  47     }
  48
  49     errno = EBADF;
  50     ret = prand_s(NULL);
  51     ok(ret == EINVAL, "Expected rand_s to return EINVAL, got %d\n", ret);
  52     ok(errno == EINVAL, "Expected errno to return EINVAL, got %d\n", errno);
  53
  54     ret = prand_s(&rand);
  55     ok(ret == 0, "Expected rand_s to return 0, got %d\n", ret);
  56 }
  57
  58 static void test_memcpy_s(void)
  59 {
  60     static char data[] = "data\0to\0be\0copied";
  61     static char dest[32];
  62     int ret;
  63
  64     if(!pmemcpy_s)
  65     {
  66         win_skip("memcpy_s is not available\n");
  67         return;
  68     }
  69
  70     errno = 0xdeadbeef;
  71     ret = pmemcpy_s(NULL, 0, NULL, 0);
  72     ok(ret == 0, "ret = %x\n", ret);
  73     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
  74
  75     errno = 0xdeadbeef;
  76     dest[0] = 'x';
  77     ret = pmemcpy_s(dest, 10, NULL, 0);
  78     ok(ret == 0, "ret = %x\n", ret);
  79     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
  80     ok(dest[0] == 'x', "dest[0] != \'x\'\n");
  81
  82     errno = 0xdeadbeef;
  83     ret = pmemcpy_s(NULL, 10, data, 10);
  84     ok(ret == EINVAL, "ret = %x\n", ret);
  85     ok(errno == EINVAL, "errno = %x\n", errno);
  86
  87     errno = 0xdeadbeef;
  88     dest[7] = 'x';
  89     ret = pmemcpy_s(dest, 10, data, 5);
  90     ok(ret == 0, "ret = %x\n", ret);
  91     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
  92     ok(memcmp(dest, data, 10), "All data copied\n");
  93     ok(!memcmp(dest, data, 5), "First five bytes are different\n");
  94
  95     errno = 0xdeadbeef;
  96     ret = pmemcpy_s(data, 10, data, 10);
  97     ok(ret == 0, "ret = %x\n", ret);
  98     ok(errno == 0xdeadbeef, "errno = %x\n", errno);
  99     ok(!memcmp(dest, data, 5), "data was destroyed during overwriting\n");
 100
 101     errno = 0xdeadbeef;
 102     dest[0] = 'x';
 103     ret = pmemcpy_s(dest, 5, data, 10);
 104     ok(ret == ERANGE, "ret = %x\n", ret);
 105     ok(errno == ERANGE, "errno = %x\n", errno);
 106     ok(dest[0] == '\0', "dest[0] != \'\\0\'\n");
 107 }
 108
 109 typedef struct _I10_OUTPUT_data {
 110     short pos;
 111     char sign;
 112     BYTE len;
 113     char str[100];
 114 } I10_OUTPUT_data;
 115
 116 typedef struct _I10_OUTPUT_test {
 117     long double d;
 118     int size;
 119     int flags;
 120
 121     I10_OUTPUT_data out;
 122     int ret;
 123     const char *remain;
 124 } I10_OUTPUT_test;
 125
 126 static const I10_OUTPUT_test I10_OUTPUT_tests[] = {
 127     /* arg3 = 0 */
 128     { 0.0, 10, 0, {0, ' ', 1, "0"}, 1, "" },
 129     { 1.0, 10, 0, {1, ' ', 1, "1"}, 1, "000000009" },
 130     { -1.0, 10, 0, {1, '-', 1, "1"}, 1, "000000009" },
 131     { 1.23, 10, 0, {1, ' ', 3, "123"}, 1, "0000009" },
 132     { 1e13, 10, 0, {14, ' ', 1, "1"}, 1, "000000009" },
 133     { 1e30, 30, 0, {31, ' ', 21, "100000000000000001988"}, 1, "" },
 134     { 1e-13, 10, 0, {-12, ' ', 1, "1"}, 1, "000000000" },
 135     { 0.25, 10, 0, {0, ' ', 2, "25"}, 1, "00000000" },
 136     { 1.0000001, 10, 0, {1, ' ', 8, "10000001"}, 1, "00" },
 137     /* arg3 = 1 */
 138     { 0.0, 10, 1, {0, ' ', 1, "0"}, 1, "" },
 139     { 1.0, 10, 1, {1, ' ', 1, "1"}, 1, "0000000009" },
 140     { -1.0, 10, 1, {1, '-', 1, "1"}, 1, "0000000009" },
 141     { 1.23, 10, 1, {1, ' ', 3, "123"}, 1, "00000009" },
 142     { 1e13, 10, 1, {14, ' ', 1, "1"}, 1, "00000000000000000009" },
 143     { 1e30, 30, 1, {31, ' ', 21, "100000000000000001988"}, 1, "" },
 144     { 1e-13, 10, 1, {0, ' ', 1, "0"}, 1, "" },
 145     { 1e-7, 10, 1, {-6, ' ', 1, "1"}, 1, "09" },
 146     { 0.25, 10, 1, {0, ' ', 2, "25"}, 1, "00000000" },
 147     { 1.0000001, 10, 1, {1, ' ', 8, "10000001"}, 1, "000" },
 148     /* too small buffer */
 149     { 0.0, 0, 0, {0, ' ', 1, "0"}, 1, "" },
 150     { 0.0, 0, 1, {0, ' ', 1, "0"}, 1, "" },
 151     { 123.0, 2, 0, {3, ' ', 2, "12"}, 1, "" },
 152     { 123.0, 0, 0, {0, ' ', 1, "0"}, 1, "" },
 153     { 123.0, 2, 1, {3, ' ', 3, "123"}, 1, "09" },
 154     { 0.99, 1, 0, {1, ' ', 1, "1"}, 1, "" },
 155     { 1264567.0, 2, 0, {7, ' ', 2, "13"}, 1, "" },
 156     { 1264567.0, 2, 1, {7, ' ', 7, "1264567"}, 1, "00" },
 157     { 1234567891.0, 2, 1, {10, ' ', 10, "1234567891"}, 1, "09" }
 158 };
 159
 160 static void test_I10_OUTPUT(void)
 161 {
 162     I10_OUTPUT_data out;
 163     int i, j, ret;
 164
 165     if(!pI10_OUTPUT) {
 166         win_skip("I10_OUTPUT not available\n");
 167         return;
 168     }
 169
 170     for(i=0; i<sizeof(I10_OUTPUT_tests)/sizeof(I10_OUTPUT_test); i++) {
 171         memset(out.str, '#', sizeof(out.str));
 172
 173         ret = pI10_OUTPUT(I10_OUTPUT_tests[i].d, I10_OUTPUT_tests[i].size, I10_OUTPUT_tests[i].flags, &out);
 174         ok(ret == I10_OUTPUT_tests[i].ret, "%d: ret = %d\n", i, ret);
 175         ok(out.pos == I10_OUTPUT_tests[i].out.pos, "%d: out.pos = %hd\n", i, out.pos);
 176         ok(out.sign == I10_OUTPUT_tests[i].out.sign, "%d: out.size = %c\n", i, out.sign);
 177         ok(out.len == I10_OUTPUT_tests[i].out.len, "%d: out.len = %d\n", i, (int)out.len);
 178         ok(!strcmp(out.str, I10_OUTPUT_tests[i].out.str), "%d: out.str = %s\n", i, out.str);
 179
 180         j = strlen(I10_OUTPUT_tests[i].remain);
 181         if(j && I10_OUTPUT_tests[i].remain[j-1]=='9')
 182             todo_wine ok(!strncmp(out.str+out.len+1, I10_OUTPUT_tests[i].remain, j),
 183                     "%d: &out.str[%d] = %.25s...\n", i, out.len+1, out.str+out.len+1);
 184         else
 185             ok(!strncmp(out.str+out.len+1, I10_OUTPUT_tests[i].remain, j),
 186                     "%d: &out.str[%d] = %.25s...\n", i, out.len+1, out.str+out.len+1);
 187
 188
 189         for(j=out.len+strlen(I10_OUTPUT_tests[i].remain)+1; j<sizeof(out.str); j++)
 190             if(out.str[j] != '#')
 191                 ok(0, "%d: out.str[%d] = %c (expected \'#\')\n", i, j, out.str[j]);
 192     }
 193 }
 194
 195 START_TEST(misc)
 196 {
 197     init();
 198
 199     test_rand_s();
 200     test_memcpy_s();
 201     test_I10_OUTPUT();
 202 }