mirror of
https://github.com/classilla/tenfourfox.git
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164 lines
5.3 KiB
C++
164 lines
5.3 KiB
C++
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Assertions.h"
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#include "mozilla/IntegerRange.h"
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#include <stddef.h>
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using mozilla::IsSame;
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using mozilla::MakeRange;
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using mozilla::Reversed;
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const size_t kMaxNumber = 50;
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const size_t kArraySize = 256;
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template<typename IntType>
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static IntType
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GenerateNumber()
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{
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return static_cast<IntType>(rand() % kMaxNumber + 1);
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}
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template<typename IntType>
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static void
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TestSingleParamRange(const IntType aN)
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{
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IntType array[kArraySize];
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IntType* ptr = array;
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for (auto i : MakeRange(aN)) {
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static_assert(IsSame<decltype(i), IntType>::value,
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"type of the loop var and the param should be the same");
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*ptr++ = i;
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}
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MOZ_RELEASE_ASSERT(ptr - array == static_cast<ptrdiff_t>(aN),
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"Should iterates N items");
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for (size_t i = 0; i < static_cast<size_t>(aN); i++) {
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MOZ_RELEASE_ASSERT(array[i] == static_cast<IntType>(i),
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"Values should equal to the index");
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}
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}
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template<typename IntType>
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static void
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TestSingleParamReverseRange(const IntType aN)
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{
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IntType array[kArraySize];
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IntType* ptr = array;
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for (auto i : Reversed(MakeRange(aN))) {
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static_assert(IsSame<decltype(i), IntType>::value,
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"type of the loop var and the param should be the same");
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*ptr++ = i;
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}
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MOZ_RELEASE_ASSERT(ptr - array == static_cast<ptrdiff_t>(aN),
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"Should iterates N items");
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for (size_t i = 0; i < static_cast<size_t>(aN); i++) {
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MOZ_RELEASE_ASSERT(array[i] == static_cast<IntType>(aN - i - 1),
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"Values should be the reverse of their index");
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}
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}
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template<typename IntType>
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static void
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TestSingleParamIntegerRange()
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{
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const auto kN = GenerateNumber<IntType>();
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TestSingleParamRange<IntType>(0);
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TestSingleParamReverseRange<IntType>(0);
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TestSingleParamRange<IntType>(kN);
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TestSingleParamReverseRange<IntType>(kN);
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}
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template<typename IntType1, typename IntType2>
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static void
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TestDoubleParamRange(const IntType1 aBegin, const IntType2 aEnd)
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{
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IntType2 array[kArraySize];
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IntType2* ptr = array;
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for (auto i : MakeRange(aBegin, aEnd)) {
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static_assert(IsSame<decltype(i), IntType2>::value, "type of the loop var "
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"should be same as that of the second param");
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*ptr++ = i;
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}
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MOZ_RELEASE_ASSERT(ptr - array == static_cast<ptrdiff_t>(aEnd - aBegin),
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"Should iterates (aEnd - aBegin) times");
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for (size_t i = 0; i < static_cast<size_t>(aEnd - aBegin); i++) {
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MOZ_RELEASE_ASSERT(array[i] == static_cast<IntType2>(aBegin + i),
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"Should iterate integers in [aBegin, aEnd) in order");
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}
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}
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template<typename IntType1, typename IntType2>
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static void
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TestDoubleParamReverseRange(const IntType1 aBegin, const IntType2 aEnd)
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{
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IntType2 array[kArraySize];
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IntType2* ptr = array;
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for (auto i : Reversed(MakeRange(aBegin, aEnd))) {
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static_assert(IsSame<decltype(i), IntType2>::value, "type of the loop var "
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"should be same as that of the second param");
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*ptr++ = i;
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}
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MOZ_RELEASE_ASSERT(ptr - array == static_cast<ptrdiff_t>(aEnd - aBegin),
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"Should iterates (aEnd - aBegin) times");
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for (size_t i = 0; i < static_cast<size_t>(aEnd - aBegin); i++) {
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MOZ_RELEASE_ASSERT(array[i] == static_cast<IntType2>(aEnd - i - 1),
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"Should iterate integers in [aBegin, aEnd) in reverse order");
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}
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}
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template<typename IntType1, typename IntType2>
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static void
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TestDoubleParamIntegerRange()
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{
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const auto kStart = GenerateNumber<IntType1>();
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const auto kEnd = static_cast<IntType2>(kStart + GenerateNumber<IntType2>());
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TestDoubleParamRange(kStart, static_cast<IntType2>(kStart));
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TestDoubleParamReverseRange(kStart, static_cast<IntType2>(kStart));
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TestDoubleParamRange(kStart, kEnd);
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TestDoubleParamReverseRange(kStart, kEnd);
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}
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int
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main()
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{
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TestSingleParamIntegerRange<int8_t>();
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TestSingleParamIntegerRange<int16_t>();
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TestSingleParamIntegerRange<int32_t>();
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TestSingleParamIntegerRange<int64_t>();
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TestSingleParamIntegerRange<uint8_t>();
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TestSingleParamIntegerRange<uint16_t>();
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TestSingleParamIntegerRange<uint32_t>();
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TestSingleParamIntegerRange<uint64_t>();
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TestDoubleParamIntegerRange<int8_t, int8_t>();
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TestDoubleParamIntegerRange<int16_t, int16_t>();
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TestDoubleParamIntegerRange<int32_t, int32_t>();
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TestDoubleParamIntegerRange<int64_t, int64_t>();
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TestDoubleParamIntegerRange<uint8_t, uint8_t>();
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TestDoubleParamIntegerRange<uint16_t, uint16_t>();
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TestDoubleParamIntegerRange<uint32_t, uint32_t>();
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TestDoubleParamIntegerRange<uint64_t, uint64_t>();
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TestDoubleParamIntegerRange<int8_t, int16_t>();
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TestDoubleParamIntegerRange<int16_t, int32_t>();
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TestDoubleParamIntegerRange<int32_t, int64_t>();
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TestDoubleParamIntegerRange<int64_t, int8_t>();
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TestDoubleParamIntegerRange<uint8_t, uint64_t>();
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TestDoubleParamIntegerRange<uint16_t, uint8_t>();
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TestDoubleParamIntegerRange<uint32_t, uint16_t>();
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TestDoubleParamIntegerRange<uint64_t, uint32_t>();
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return 0;
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}
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