grpc1.45.2/third_party/libuv/test/test-cwd-and-chdir.c

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#include "uv.h"
#include "task.h"
#include <string.h>

#define PATHMAX 4096

TEST_IMPL(cwd_and_chdir) {
  char buffer_orig[PATHMAX];
  char buffer_new[PATHMAX];
  size_t size1;
  size_t size2;
  int err;

  size1 = 1;
  err = uv_cwd(buffer_orig, &size1);
  ASSERT(err == UV_ENOBUFS);
  ASSERT(size1 > 1);

  size1 = sizeof buffer_orig;
  err = uv_cwd(buffer_orig, &size1);
  ASSERT(err == 0);
  ASSERT(size1 > 0);
  ASSERT(buffer_orig[size1] != '/');

  err = uv_chdir(buffer_orig);
  ASSERT(err == 0);

  size2 = sizeof buffer_new;
  err = uv_cwd(buffer_new, &size2);
  ASSERT(err == 0);

  ASSERT(size1 == size2);
  ASSERT(strcmp(buffer_orig, buffer_new) == 0);

  return 0;
}