gecko-dev/mfbt/tests/TestArrayUtils.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/ArrayUtils.h"
#include "mozilla/Assertions.h"
using mozilla::IsInRange;
static void
TestIsInRangeNonClass()
{
void* nul = nullptr;
int* intBegin = nullptr;
int* intEnd = intBegin + 1;
int* intEnd2 = intBegin + 2;
MOZ_RELEASE_ASSERT(IsInRange(nul, intBegin, intEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, intEnd, intEnd2));
MOZ_RELEASE_ASSERT(IsInRange(intBegin, intBegin, intEnd));
MOZ_RELEASE_ASSERT(!IsInRange(intEnd, intBegin, intEnd));
MOZ_RELEASE_ASSERT(IsInRange(intBegin, intBegin, intEnd2));
MOZ_RELEASE_ASSERT(IsInRange(intEnd, intBegin, intEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(intEnd2, intBegin, intEnd2));
uintptr_t uintBegin = uintptr_t(intBegin);
uintptr_t uintEnd = uintptr_t(intEnd);
uintptr_t uintEnd2 = uintptr_t(intEnd2);
MOZ_RELEASE_ASSERT(IsInRange(nul, uintBegin, uintEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, uintEnd, uintEnd2));
MOZ_RELEASE_ASSERT(IsInRange(intBegin, uintBegin, uintEnd));
MOZ_RELEASE_ASSERT(!IsInRange(intEnd, uintBegin, uintEnd));
MOZ_RELEASE_ASSERT(IsInRange(intBegin, uintBegin, uintEnd2));
MOZ_RELEASE_ASSERT(IsInRange(intEnd, uintBegin, uintEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(intEnd2, uintBegin, uintEnd2));
}
static void
TestIsInRangeVoid()
{
int* intBegin = nullptr;
int* intEnd = intBegin + 1;
int* intEnd2 = intBegin + 2;
void* voidBegin = intBegin;
void* voidEnd = intEnd;
void* voidEnd2 = intEnd2;
MOZ_RELEASE_ASSERT(IsInRange(voidBegin, intBegin, intEnd));
MOZ_RELEASE_ASSERT(!IsInRange(voidEnd, intBegin, intEnd));
MOZ_RELEASE_ASSERT(IsInRange(voidBegin, voidBegin, voidEnd));
MOZ_RELEASE_ASSERT(!IsInRange(voidEnd, voidBegin, voidEnd));
MOZ_RELEASE_ASSERT(IsInRange(voidBegin, intBegin, intEnd2));
MOZ_RELEASE_ASSERT(IsInRange(voidEnd, intBegin, intEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(voidEnd2, intBegin, intEnd2));
MOZ_RELEASE_ASSERT(IsInRange(voidBegin, voidBegin, voidEnd2));
MOZ_RELEASE_ASSERT(IsInRange(voidEnd, voidBegin, voidEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(voidEnd2, voidBegin, voidEnd2));
uintptr_t uintBegin = uintptr_t(intBegin);
uintptr_t uintEnd = uintptr_t(intEnd);
uintptr_t uintEnd2 = uintptr_t(intEnd2);
MOZ_RELEASE_ASSERT(IsInRange(voidBegin, uintBegin, uintEnd));
MOZ_RELEASE_ASSERT(!IsInRange(voidEnd, uintBegin, uintEnd));
MOZ_RELEASE_ASSERT(IsInRange(voidBegin, uintBegin, uintEnd2));
MOZ_RELEASE_ASSERT(IsInRange(voidEnd, uintBegin, uintEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(voidEnd2, uintBegin, uintEnd2));
}
struct Base { int mX; };
static void
TestIsInRangeClass()
{
void* nul = nullptr;
Base* baseBegin = nullptr;
Base* baseEnd = baseBegin + 1;
Base* baseEnd2 = baseBegin + 2;
MOZ_RELEASE_ASSERT(IsInRange(nul, baseBegin, baseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, baseEnd, baseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, baseBegin, baseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, baseBegin, baseEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, baseBegin, baseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, baseBegin, baseEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, baseBegin, baseEnd2));
uintptr_t ubaseBegin = uintptr_t(baseBegin);
uintptr_t ubaseEnd = uintptr_t(baseEnd);
uintptr_t ubaseEnd2 = uintptr_t(baseEnd2);
MOZ_RELEASE_ASSERT(IsInRange(nul, ubaseBegin, ubaseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, ubaseEnd, ubaseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, ubaseBegin, ubaseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, ubaseBegin, ubaseEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, ubaseBegin, ubaseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, ubaseBegin, ubaseEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, ubaseBegin, ubaseEnd2));
}
struct EmptyBase {};
static void
TestIsInRangeEmptyClass()
{
void* nul = nullptr;
EmptyBase* baseBegin = nullptr;
EmptyBase* baseEnd = baseBegin + 1;
EmptyBase* baseEnd2 = baseBegin + 2;
MOZ_RELEASE_ASSERT(IsInRange(nul, baseBegin, baseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, baseEnd, baseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, baseBegin, baseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, baseBegin, baseEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, baseBegin, baseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, baseBegin, baseEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, baseBegin, baseEnd2));
uintptr_t ubaseBegin = uintptr_t(baseBegin);
uintptr_t ubaseEnd = uintptr_t(baseEnd);
uintptr_t ubaseEnd2 = uintptr_t(baseEnd2);
MOZ_RELEASE_ASSERT(IsInRange(nul, ubaseBegin, ubaseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, ubaseEnd, ubaseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, ubaseBegin, ubaseEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, ubaseBegin, ubaseEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, ubaseBegin, ubaseEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, ubaseBegin, ubaseEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, ubaseBegin, ubaseEnd2));
}
struct Derived : Base {};
static void
TestIsInRangeClassDerived()
{
void* nul = nullptr;
Derived* derivedBegin = nullptr;
Derived* derivedEnd = derivedBegin + 1;
Derived* derivedEnd2 = derivedBegin + 2;
Base* baseBegin = static_cast<Base*>(derivedBegin);
Base* baseEnd = static_cast<Base*>(derivedEnd);
Base* baseEnd2 = static_cast<Base*>(derivedEnd2);
MOZ_RELEASE_ASSERT(IsInRange(nul, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, derivedEnd, derivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedBegin, derivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, derivedBegin, derivedEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, derivedBegin, derivedEnd2));
uintptr_t uderivedBegin = uintptr_t(derivedBegin);
uintptr_t uderivedEnd = uintptr_t(derivedEnd);
uintptr_t uderivedEnd2 = uintptr_t(derivedEnd2);
MOZ_RELEASE_ASSERT(IsInRange(derivedBegin, uderivedBegin, uderivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEnd, uderivedBegin, uderivedEnd));
MOZ_RELEASE_ASSERT(IsInRange(derivedBegin, uderivedBegin, uderivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(derivedEnd, uderivedBegin, uderivedEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEnd2, uderivedBegin, uderivedEnd2));
}
struct DerivedEmpty : EmptyBase {};
static void
TestIsInRangeClassDerivedEmpty()
{
void* nul = nullptr;
DerivedEmpty* derivedEmptyBegin = nullptr;
DerivedEmpty* derivedEmptyEnd = derivedEmptyBegin + 1;
DerivedEmpty* derivedEmptyEnd2 = derivedEmptyBegin + 2;
EmptyBase* baseBegin = static_cast<EmptyBase*>(derivedEmptyBegin);
EmptyBase* baseEnd = static_cast<EmptyBase*>(derivedEmptyEnd);
EmptyBase* baseEnd2 = static_cast<EmptyBase*>(derivedEmptyEnd2);
MOZ_RELEASE_ASSERT(IsInRange(nul, derivedEmptyBegin, derivedEmptyEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, derivedEmptyEnd, derivedEmptyEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedEmptyBegin, derivedEmptyEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, derivedEmptyBegin, derivedEmptyEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedEmptyBegin, derivedEmptyEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, derivedEmptyBegin, derivedEmptyEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, derivedEmptyBegin, derivedEmptyEnd2));
uintptr_t uderivedEmptyBegin = uintptr_t(derivedEmptyBegin);
uintptr_t uderivedEmptyEnd = uintptr_t(derivedEmptyEnd);
uintptr_t uderivedEmptyEnd2 = uintptr_t(derivedEmptyEnd2);
MOZ_RELEASE_ASSERT(IsInRange(derivedEmptyBegin, uderivedEmptyBegin,
uderivedEmptyEnd));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEmptyEnd, uderivedEmptyBegin,
uderivedEmptyEnd));
MOZ_RELEASE_ASSERT(IsInRange(derivedEmptyBegin, uderivedEmptyBegin,
uderivedEmptyEnd2));
MOZ_RELEASE_ASSERT(IsInRange(derivedEmptyEnd, uderivedEmptyBegin,
uderivedEmptyEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEmptyEnd2, uderivedEmptyBegin,
uderivedEmptyEnd2));
}
struct ExtraDerived : Base { int y; };
static void
TestIsInRangeClassExtraDerived()
{
void* nul = nullptr;
ExtraDerived* derivedBegin = nullptr;
ExtraDerived* derivedEnd = derivedBegin + 1;
ExtraDerived* derivedEnd2 = derivedBegin + 2;
Base* baseBegin = static_cast<Base*>(derivedBegin);
Base* baseEnd = static_cast<Base*>(derivedEnd);
Base* baseEnd2 = static_cast<Base*>(derivedEnd2);
MOZ_RELEASE_ASSERT(IsInRange(nul, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, derivedEnd, derivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedBegin, derivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, derivedBegin, derivedEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, derivedBegin, derivedEnd2));
uintptr_t uderivedBegin = uintptr_t(derivedBegin);
uintptr_t uderivedEnd = uintptr_t(derivedEnd);
uintptr_t uderivedEnd2 = uintptr_t(derivedEnd2);
MOZ_RELEASE_ASSERT(IsInRange(derivedBegin, uderivedBegin, uderivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEnd, uderivedBegin, uderivedEnd));
MOZ_RELEASE_ASSERT(IsInRange(derivedBegin, uderivedBegin, uderivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(derivedEnd, uderivedBegin, uderivedEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEnd2, uderivedBegin, uderivedEnd2));
}
struct ExtraDerivedEmpty : EmptyBase { int y; };
static void
TestIsInRangeClassExtraDerivedEmpty()
{
void* nul = nullptr;
ExtraDerivedEmpty* derivedBegin = nullptr;
ExtraDerivedEmpty* derivedEnd = derivedBegin + 1;
ExtraDerivedEmpty* derivedEnd2 = derivedBegin + 2;
EmptyBase* baseBegin = static_cast<EmptyBase*>(derivedBegin);
EmptyBase* baseEnd = static_cast<EmptyBase*>(derivedEnd);
EmptyBase* baseEnd2 = static_cast<EmptyBase*>(derivedEnd2);
MOZ_RELEASE_ASSERT(IsInRange(nul, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(nul, derivedEnd, derivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd, derivedBegin, derivedEnd));
MOZ_RELEASE_ASSERT(IsInRange(baseBegin, derivedBegin, derivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(baseEnd, derivedBegin, derivedEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(baseEnd2, derivedBegin, derivedEnd2));
uintptr_t uderivedBegin = uintptr_t(derivedBegin);
uintptr_t uderivedEnd = uintptr_t(derivedEnd);
uintptr_t uderivedEnd2 = uintptr_t(derivedEnd2);
MOZ_RELEASE_ASSERT(IsInRange(derivedBegin, uderivedBegin, uderivedEnd));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEnd, uderivedBegin, uderivedEnd));
MOZ_RELEASE_ASSERT(IsInRange(derivedBegin, uderivedBegin, uderivedEnd2));
MOZ_RELEASE_ASSERT(IsInRange(derivedEnd, uderivedBegin, uderivedEnd2));
MOZ_RELEASE_ASSERT(!IsInRange(derivedEnd2, uderivedBegin, uderivedEnd2));
}
int
main()
{
TestIsInRangeNonClass();
TestIsInRangeVoid();
TestIsInRangeClass();
TestIsInRangeEmptyClass();
TestIsInRangeClassDerived();
TestIsInRangeClassDerivedEmpty();
TestIsInRangeClassExtraDerived();
TestIsInRangeClassExtraDerivedEmpty();
return 0;
}