tildefriends/deps/libuv/test/test-env-vars.c

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/* Copyright libuv contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "uv.h"
#include "task.h"
#include <string.h>
#define BUF_SIZE 10
TEST_IMPL(env_vars) {
const char* name = "UV_TEST_FOO";
const char* name2 = "UV_TEST_FOO2";
char buf[BUF_SIZE];
size_t size;
int i, r, envcount, found, found_win_special;
uv_env_item_t* envitems;
/* Reject invalid inputs when setting an environment variable */
r = uv_os_setenv(NULL, "foo");
ASSERT(r == UV_EINVAL);
r = uv_os_setenv(name, NULL);
ASSERT(r == UV_EINVAL);
r = uv_os_setenv(NULL, NULL);
ASSERT(r == UV_EINVAL);
/* Reject invalid inputs when retrieving an environment variable */
size = BUF_SIZE;
r = uv_os_getenv(NULL, buf, &size);
ASSERT(r == UV_EINVAL);
r = uv_os_getenv(name, NULL, &size);
ASSERT(r == UV_EINVAL);
r = uv_os_getenv(name, buf, NULL);
ASSERT(r == UV_EINVAL);
size = 0;
r = uv_os_getenv(name, buf, &size);
ASSERT(r == UV_EINVAL);
/* Reject invalid inputs when deleting an environment variable */
r = uv_os_unsetenv(NULL);
ASSERT(r == UV_EINVAL);
/* Successfully set an environment variable */
r = uv_os_setenv(name, "123456789");
ASSERT(r == 0);
/* Successfully read an environment variable */
size = BUF_SIZE;
buf[0] = '\0';
r = uv_os_getenv(name, buf, &size);
ASSERT(r == 0);
ASSERT(strcmp(buf, "123456789") == 0);
ASSERT(size == BUF_SIZE - 1);
/* Return UV_ENOBUFS if the buffer cannot hold the environment variable */
size = BUF_SIZE - 1;
buf[0] = '\0';
r = uv_os_getenv(name, buf, &size);
ASSERT(r == UV_ENOBUFS);
ASSERT(size == BUF_SIZE);
/* Successfully delete an environment variable */
r = uv_os_unsetenv(name);
ASSERT(r == 0);
/* Return UV_ENOENT retrieving an environment variable that does not exist */
r = uv_os_getenv(name, buf, &size);
ASSERT(r == UV_ENOENT);
/* Successfully delete an environment variable that does not exist */
r = uv_os_unsetenv(name);
ASSERT(r == 0);
/* Setting an environment variable to the empty string does not delete it. */
r = uv_os_setenv(name, "");
ASSERT(r == 0);
size = BUF_SIZE;
r = uv_os_getenv(name, buf, &size);
ASSERT(r == 0);
ASSERT(size == 0);
ASSERT(strlen(buf) == 0);
/* Check getting all env variables. */
r = uv_os_setenv(name, "123456789");
ASSERT(r == 0);
r = uv_os_setenv(name2, "");
ASSERT(r == 0);
#ifdef _WIN32
/* Create a special environment variable on Windows in case there are no
naturally occurring ones. */
r = uv_os_setenv("=Z:", "\\");
ASSERT(r == 0);
#endif
r = uv_os_environ(&envitems, &envcount);
ASSERT(r == 0);
ASSERT(envcount > 0);
found = 0;
found_win_special = 0;
for (i = 0; i < envcount; i++) {
/* printf("Env: %s = %s\n", envitems[i].name, envitems[i].value); */
if (strcmp(envitems[i].name, name) == 0) {
found++;
ASSERT(strcmp(envitems[i].value, "123456789") == 0);
} else if (strcmp(envitems[i].name, name2) == 0) {
found++;
ASSERT(strlen(envitems[i].value) == 0);
} else if (envitems[i].name[0] == '=') {
found_win_special++;
}
}
ASSERT(found == 2);
#ifdef _WIN32
ASSERT(found_win_special > 0);
#endif
uv_os_free_environ(envitems, envcount);
r = uv_os_unsetenv(name);
ASSERT(r == 0);
r = uv_os_unsetenv(name2);
ASSERT(r == 0);
for (i = 1; i <= 4; i++) {
size_t n;
char* p;
n = i * 32768;
size = n + 1;
p = malloc(size);
ASSERT_NOT_NULL(p);
memset(p, 'x', n);
p[n] = '\0';
ASSERT_EQ(0, uv_os_setenv(name, p));
ASSERT_EQ(0, uv_os_getenv(name, p, &size));
ASSERT_EQ(n, size);
for (n = 0; n < size; n++)
ASSERT_EQ('x', p[n]);
ASSERT_EQ(0, uv_os_unsetenv(name));
free(p);
}
return 0;
}