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https://github.com/jart/cosmopolitan.git
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adac64a52b
The includes in libc/calls/calls.h have now been refactored so that functions with struct parameters are declared in libc/calls/struct/
55 lines
2.6 KiB
C
55 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/bits/bits.h"
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#include "libc/mem/mem.h"
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#include "libc/rand/rand.h"
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#include "libc/str/str.h"
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#include "libc/testlib/hyperion.h"
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#include "libc/testlib/testlib.h"
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TEST(rand002, alwaysReturnsPositiveNumbers) {
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for (unsigned i = 0; i < 100; ++i) {
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ASSERT_GT(rand(), 0);
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}
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}
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TEST(rand003, srandSmokeTest) {
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srand(1);
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ASSERT_EQ(908834774, rand());
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srand(1);
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ASSERT_EQ(908834774, rand());
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srand(7);
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ASSERT_EQ(1059165278, rand());
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}
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TEST(rand005, rand64SmokeTest) {
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ASSERT_TRUE(rand64() != rand64() || rand64() != rand64());
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}
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TEST(rand64, test) {
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char *p;
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size_t i;
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uint64_t x;
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p = memcpy(malloc(kHyperionSize), kHyperion, kHyperionSize);
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for (i = 0; i < kHyperionSize / 8; ++i) {
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x = rand64();
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WRITE64LE(p + i * 8, x);
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}
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free(p);
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}
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