mirror of
https://github.com/jart/cosmopolitan.git
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72 lines
3.1 KiB
C
72 lines
3.1 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 2021 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/fmt/leb128.h"
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#include "libc/limits.h"
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#include "libc/stdio/stdio.h"
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#include "libc/testlib/testlib.h"
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char p[10];
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uint64_t x;
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TEST(uleb64, testZero) {
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EXPECT_EQ(1, uleb64(p, 0) - p);
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EXPECT_EQ(0, p[0]);
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EXPECT_EQ(1, unuleb64(p, 10, &x));
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EXPECT_EQ(0, x);
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EXPECT_EQ(-1, unuleb64(p, 0, &x));
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}
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TEST(uleb64, testOne) {
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EXPECT_EQ(1, uleb64(p, 1) - p);
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EXPECT_EQ(1, p[0]);
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EXPECT_EQ(1, unuleb64(p, 10, &x));
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EXPECT_EQ(1, x);
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}
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TEST(uleb64, test255) {
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EXPECT_EQ(2, uleb64(p, 255) - p);
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EXPECT_EQ(255, p[0] & 255);
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EXPECT_EQ(1, p[1]);
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EXPECT_EQ(2, unuleb64(p, 10, &x));
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EXPECT_EQ(255, x);
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}
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TEST(uleb64, testFFFF) {
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EXPECT_EQ(3, uleb64(p, 0xFFFF) - p);
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EXPECT_EQ(255, p[0] & 255);
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EXPECT_EQ(255, p[1] & 255);
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EXPECT_EQ(3, p[2] & 255);
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}
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TEST(uleb64, testMax) {
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EXPECT_EQ(10, uleb64(p, UINT64_MAX) - p);
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EXPECT_EQ(255, p[0x00] & 255);
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EXPECT_EQ(255, p[0x01] & 255);
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EXPECT_EQ(255, p[0x02] & 255);
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EXPECT_EQ(255, p[0x03] & 255);
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EXPECT_EQ(255, p[0x04] & 255);
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EXPECT_EQ(255, p[0x05] & 255);
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EXPECT_EQ(255, p[0x06] & 255);
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EXPECT_EQ(255, p[0x07] & 255);
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EXPECT_EQ(255, p[0x08] & 255);
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EXPECT_EQ(001, p[0x09] & 255);
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EXPECT_EQ(10, unuleb64(p, 10, &x));
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EXPECT_EQ(UINT64_MAX, x);
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EXPECT_EQ(-1, unuleb64(p, 7, &x));
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}
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