Source/bmalloc/libpas/src/test/UtilsTests.cpp

/*
 * Copyright (c) 2019 Apple Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
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#include "TestHarness.h"
#include "pas_utils.h"

using namespace std;

namespace {

void testIsDivisibleBy3(unsigned value)
{
    static const uint64_t magic_constant = PAS_IS_DIVISIBLE_BY_MAGIC_CONSTANT(3);
    CHECK_EQUAL(pas_is_divisible_by(value, magic_constant),
                !(value % 3));
}

} // anonymous namespace

void addUtilsTests()
{
    ADD_TEST(testIsDivisibleBy3(0));
    ADD_TEST(testIsDivisibleBy3(1));
    ADD_TEST(testIsDivisibleBy3(2));
    ADD_TEST(testIsDivisibleBy3(3));
    ADD_TEST(testIsDivisibleBy3(4));
    ADD_TEST(testIsDivisibleBy3(5));
    ADD_TEST(testIsDivisibleBy3(6));
    ADD_TEST(testIsDivisibleBy3(7));
    ADD_TEST(testIsDivisibleBy3(8));
    ADD_TEST(testIsDivisibleBy3(9));
    ADD_TEST(testIsDivisibleBy3(10));
    ADD_TEST(testIsDivisibleBy3(11));
    ADD_TEST(testIsDivisibleBy3(12));
    ADD_TEST(testIsDivisibleBy3(13));
    ADD_TEST(testIsDivisibleBy3(14));
    ADD_TEST(testIsDivisibleBy3(15));
    ADD_TEST(testIsDivisibleBy3(16));
    ADD_TEST(testIsDivisibleBy3(17));
    ADD_TEST(testIsDivisibleBy3(18));
    ADD_TEST(testIsDivisibleBy3(19));
    ADD_TEST(testIsDivisibleBy3(20));
    ADD_TEST(testIsDivisibleBy3(21));
    ADD_TEST(testIsDivisibleBy3(22));
    ADD_TEST(testIsDivisibleBy3(23));
    ADD_TEST(testIsDivisibleBy3(24));
    ADD_TEST(testIsDivisibleBy3(25));
    ADD_TEST(testIsDivisibleBy3(26));
    ADD_TEST(testIsDivisibleBy3(27));
}