/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :viâ
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â Copyright 2022 Justine Alexandra Roberts Tunney                              â
â                                                                              â
â Permission to use, copy, modify, and/or distribute this software for         â
â any purpose with or without fee is hereby granted, provided that the         â
â above copyright notice and this permission notice appear in all copies.      â
â                                                                              â
â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             â
â PERFORMANCE OF THIS SOFTWARE.                                                â
ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/errno.h"
#include "libc/fmt/fmt.h"
#include "libc/fmt/itoa.h"
#include "libc/stdio/rand.h"
#include "libc/runtime/runtime.h"
#include "libc/sysv/consts/at.h"
#include "libc/sysv/consts/s.h"
#include "libc/testlib/testlib.h"

char testlib_enable_tmp_setup_teardown;
char p[2][PATH_MAX];
struct stat st;

void SetUpOnce(void) {
  ASSERT_SYS(0, 0, pledge("stdio rpath wpath cpath fattr", 0));
}

TEST(symlink, enoent) {
  ASSERT_SYS(ENOENT, -1, symlink("o/foo", ""));
  ASSERT_SYS(ENOENT, -1, symlink("o/foo", "o/bar"));
}

TEST(symlinkat, enotdir) {
  ASSERT_SYS(0, 0, close(creat("yo", 0644)));
  ASSERT_SYS(ENOTDIR, -1, symlink("hrcue", "yo/there"));
}

TEST(symlinkat, test) {
  sprintf(p[0], "%s.%d", program_invocation_short_name, rand());
  sprintf(p[1], "%s.%d", program_invocation_short_name, rand());

  EXPECT_EQ(0, touch(p[0], 0644));
  EXPECT_EQ(0, symlink(p[0], p[1]));

  // check the normal file
  EXPECT_FALSE(issymlink(p[0]));
  EXPECT_EQ(0, lstat(p[0], &st));
  EXPECT_FALSE(S_ISLNK(st.st_mode));

  // check the symlink file
  EXPECT_TRUE(issymlink(p[1]));
  EXPECT_EQ(0, lstat(p[1], &st));
  EXPECT_TRUE(S_ISLNK(st.st_mode));

  // symlink isn't a symlink if we use it normally
  EXPECT_EQ(0, stat(p[1], &st));
  EXPECT_FALSE(S_ISLNK(st.st_mode));
}
