cosmopolitan/test/libc/sock/select_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 2021 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/calls/struct/timeval.h"
#include "libc/sock/select.h"
#include "libc/sock/sock.h"
#include "libc/testlib/testlib.h"
#include "libc/time/time.h"

TEST(select, allZero) {
  // todo: figure out how to test block until signal w/ select
  // EXPECT_SYS(0, 0, select(0, 0, 0, 0, 0));
}

TEST(select, testSleep) {
  int64_t e;
  long double n;
  struct timeval t = {0, 2000};
  n = nowl();
  EXPECT_SYS(0, 0, select(0, 0, 0, 0, &t));
  e = (nowl() - n) * 1e6;
  EXPECT_GT(e, 1000);
  if (IsLinux()) {
    EXPECT_EQ(0, t.tv_sec);
    EXPECT_EQ(0, t.tv_usec);
  }
}