test-get-currentexe.c

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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
 *
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 * 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.
 *
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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#include "uv.h"
#include "task.h"
#include <string.h>
 
#ifndef _WIN32
#include <unistd.h>
#endif
 
#define PATHMAX 4096
extern char executable_path[];
 
TEST_IMPL(get_currentexe) {
  char buffer[PATHMAX];
  char path[PATHMAX];
  size_t size;
  char* match;
  int r;
 
  size = sizeof(buffer) / sizeof(buffer[0]);
  r = uv_exepath(buffer, &size);
  ASSERT(!r);
 
#ifdef _WIN32
  snprintf(path, sizeof(path), "%s", executable_path);
#else
  ASSERT(NULL != realpath(executable_path, path));
#endif
 
  match = strstr(buffer, path);
  /* Verify that the path returned from uv_exepath is a subdirectory of
   * executable_path.
   */
  ASSERT(match && !strcmp(match, path));
  ASSERT(size == strlen(buffer));
 
  /* Negative tests */
  size = sizeof(buffer) / sizeof(buffer[0]);
  r = uv_exepath(NULL, &size);
  ASSERT(r == UV_EINVAL);
 
  r = uv_exepath(buffer, NULL);
  ASSERT(r == UV_EINVAL);
 
  size = 0;
  r = uv_exepath(buffer, &size);
  ASSERT(r == UV_EINVAL);
 
  memset(buffer, -1, sizeof(buffer));
 
  size = 1;
  r = uv_exepath(buffer, &size);
  ASSERT(r == 0);
  ASSERT(size == 0);
  ASSERT(buffer[0] == '\0');
 
  memset(buffer, -1, sizeof(buffer));
 
  size = 2;
  r = uv_exepath(buffer, &size);
  ASSERT(r == 0);
  ASSERT(size == 1);
  ASSERT(buffer[0] != '\0');
  ASSERT(buffer[1] == '\0');
 
  return 0;
}