cosmopolitan/test/libc/stdio/fmemopen_test.c

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
│                                                                              │
│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
│ above copyright notice and this permission notice appear in all copies.      │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
│ PERFORMANCE OF THIS SOFTWARE.                                                │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/stdio/stdio.h"
#include "libc/testlib/testlib.h"

TEST(fmemopen, testWriteRewindRead) {
  char c;
  FILE *f;
  f = fmemopen(NULL, BUFSIZ, "w+");
  EXPECT_EQ(1, fwrite("c", 1, 1, f));
  rewind(f);
  EXPECT_EQ(1, fread(&c, 1, 1, f));
  EXPECT_EQ('c', c);
}

/* TEST(fmemopen, testWriteRead_readsNothingButNotEof) { */
/*   char c; */
/*   FILE *f; */
/*   f = fmemopen(NULL, BUFSIZ, "w+"); */
/*   EXPECT_EQ(1, fwrite("c", 1, 1, f)); */
/*   EXPECT_EQ(0, fread(&c, 1, 1, f)); */
/* } */