cosmopolitan/test/libc/intrin/describeflags_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│
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│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
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│ Permission to use, copy, modify, and/or distribute this software for         │
│ any purpose with or without fee is hereby granted, provided that the         │
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#include "libc/intrin/describeflags.internal.h"
#include "libc/macros.internal.h"
#include "libc/testlib/testlib.h"

static const struct DescribeFlags kFlags[] = {
    {1, "hi"},     //
    {2, "there"},  //
};

const char *DescribeIt(uint32_t x) {
  static char s[64];
  return DescribeFlags(s, ARRAYLEN(s), kFlags, ARRAYLEN(kFlags), "x", x);
}

TEST(describeflags, test) {
  EXPECT_STREQ("0", DescribeIt(0));
  EXPECT_STREQ("xhi", DescribeIt(1));
  EXPECT_STREQ("xthere", DescribeIt(2));
  EXPECT_STREQ("xhi|xthere", DescribeIt(3));
  EXPECT_STREQ("xhi|xthere|0x14", DescribeIt(0x17));
}