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Diffstat (limited to 'mfbt/tests/TestArrayUtils.cpp')
| -rw-r--r-- | mfbt/tests/TestArrayUtils.cpp | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/mfbt/tests/TestArrayUtils.cpp b/mfbt/tests/TestArrayUtils.cpp new file mode 100644 index 0000000000..b50531a3a8 --- /dev/null +++ b/mfbt/tests/TestArrayUtils.cpp @@ -0,0 +1,301 @@ +/* -*- 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; +} |