text: /* Copyright Joyent, Inc. and other Node 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 PATHMAX 1024
  extern char executable_path[];
  
  TEST_IMPL(get_currentexe) {
    char buffer[PATHMAX];
    size_t size;
    char* match;
    char* path;
    int r;
  
    size = sizeof(buffer) / sizeof(buffer[0]);
    r = uv_exepath(buffer, &size);
    ASSERT(!r);
  
    /* uv_exepath can return an absolute path on darwin, so if the test runner
     * was run with a relative prefix of "./", we need to strip that prefix off
     * executable_path or we'll fail. */
    if (executable_path[0] == '.' && executable_path[1] == '/') {
      path = executable_path + 2;
    } else {
      path = executable_path;
    }
  
    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;
  }
  