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Diffstat (limited to 'mfbt/tests/TestEnumSet.cpp')
| -rw-r--r-- | mfbt/tests/TestEnumSet.cpp | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/mfbt/tests/TestEnumSet.cpp b/mfbt/tests/TestEnumSet.cpp new file mode 100644 index 0000000000..035c1fcfee --- /dev/null +++ b/mfbt/tests/TestEnumSet.cpp @@ -0,0 +1,296 @@ +/* -*- 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/EnumSet.h" +#include "mozilla/Vector.h" + +#include <type_traits> + +using namespace mozilla; + +enum SeaBird { + PENGUIN, + ALBATROSS, + FULMAR, + PRION, + SHEARWATER, + GADFLY_PETREL, + TRUE_PETREL, + DIVING_PETREL, + STORM_PETREL, + PELICAN, + GANNET, + BOOBY, + CORMORANT, + FRIGATEBIRD, + TROPICBIRD, + SKUA, + GULL, + TERN, + SKIMMER, + AUK +}; + +enum class SmallEnum : uint8_t { + Foo, + Bar, +}; + +enum class BigEnum : uint64_t { + Foo, + Bar = 35, +}; + +class EnumSetSuite { + public: + EnumSetSuite() + : mAlcidae(), + mDiomedeidae(ALBATROSS), + mPetrelProcellariidae(GADFLY_PETREL, TRUE_PETREL), + mNonPetrelProcellariidae(FULMAR, PRION, SHEARWATER), + mPetrels(GADFLY_PETREL, TRUE_PETREL, DIVING_PETREL, STORM_PETREL) {} + + void runTests() { + testSize(); + testContains(); + testAddTo(); + testAdd(); + testAddAll(); + testUnion(); + testRemoveFrom(); + testRemove(); + testRemoveAllFrom(); + testRemoveAll(); + testIntersect(); + testInsersection(); + testEquality(); + testDuplicates(); + testIteration(); + testInitializerListConstuctor(); + testBigEnum(); + } + + private: + void testEnumSetLayout() { +#ifndef DEBUG + static_assert(sizeof(EnumSet<SmallEnum>) == sizeof(SmallEnum), + "EnumSet should be no bigger than the enum by default"); + static_assert(sizeof(EnumSet<SmallEnum, uint32_t>) == sizeof(uint32_t), + "EnumSet should be able to have its size overriden."); + static_assert(std::is_trivially_copyable_v<EnumSet<SmallEnum>>, + "EnumSet should be lightweight outside of debug."); +#endif + } + + void testSize() { + MOZ_RELEASE_ASSERT(mAlcidae.size() == 0); + MOZ_RELEASE_ASSERT(mDiomedeidae.size() == 1); + MOZ_RELEASE_ASSERT(mPetrelProcellariidae.size() == 2); + MOZ_RELEASE_ASSERT(mNonPetrelProcellariidae.size() == 3); + MOZ_RELEASE_ASSERT(mPetrels.size() == 4); + } + + void testContains() { + MOZ_RELEASE_ASSERT(!mPetrels.contains(PENGUIN)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(ALBATROSS)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(FULMAR)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(PRION)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(SHEARWATER)); + MOZ_RELEASE_ASSERT(mPetrels.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(mPetrels.contains(TRUE_PETREL)); + MOZ_RELEASE_ASSERT(mPetrels.contains(DIVING_PETREL)); + MOZ_RELEASE_ASSERT(mPetrels.contains(STORM_PETREL)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(PELICAN)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(GANNET)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(BOOBY)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(CORMORANT)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(FRIGATEBIRD)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(TROPICBIRD)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(SKUA)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(GULL)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(TERN)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(SKIMMER)); + MOZ_RELEASE_ASSERT(!mPetrels.contains(AUK)); + } + + void testCopy() { + EnumSet<SeaBird> likes = mPetrels; + likes -= TRUE_PETREL; + MOZ_RELEASE_ASSERT(mPetrels.size() == 4); + MOZ_RELEASE_ASSERT(mPetrels.contains(TRUE_PETREL)); + + MOZ_RELEASE_ASSERT(likes.size() == 3); + MOZ_RELEASE_ASSERT(likes.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(DIVING_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(STORM_PETREL)); + } + + void testAddTo() { + EnumSet<SeaBird> seen = mPetrels; + seen += CORMORANT; + seen += TRUE_PETREL; + MOZ_RELEASE_ASSERT(mPetrels.size() == 4); + MOZ_RELEASE_ASSERT(!mPetrels.contains(CORMORANT)); + MOZ_RELEASE_ASSERT(seen.size() == 5); + MOZ_RELEASE_ASSERT(seen.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(TRUE_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(DIVING_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(STORM_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(CORMORANT)); + } + + void testAdd() { + EnumSet<SeaBird> seen = mPetrels + CORMORANT + STORM_PETREL; + MOZ_RELEASE_ASSERT(mPetrels.size() == 4); + MOZ_RELEASE_ASSERT(!mPetrels.contains(CORMORANT)); + MOZ_RELEASE_ASSERT(seen.size() == 5); + MOZ_RELEASE_ASSERT(seen.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(TRUE_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(DIVING_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(STORM_PETREL)); + MOZ_RELEASE_ASSERT(seen.contains(CORMORANT)); + } + + void testAddAll() { + EnumSet<SeaBird> procellariidae; + procellariidae += mPetrelProcellariidae; + procellariidae += mNonPetrelProcellariidae; + MOZ_RELEASE_ASSERT(procellariidae.size() == 5); + + // Both procellariidae and mPetrels include GADFLY_PERTEL and TRUE_PETREL + EnumSet<SeaBird> procellariiformes; + procellariiformes += mDiomedeidae; + procellariiformes += procellariidae; + procellariiformes += mPetrels; + MOZ_RELEASE_ASSERT(procellariiformes.size() == 8); + } + + void testUnion() { + EnumSet<SeaBird> procellariidae = + mPetrelProcellariidae + mNonPetrelProcellariidae; + MOZ_RELEASE_ASSERT(procellariidae.size() == 5); + + // Both procellariidae and mPetrels include GADFLY_PETREL and TRUE_PETREL + EnumSet<SeaBird> procellariiformes = + mDiomedeidae + procellariidae + mPetrels; + MOZ_RELEASE_ASSERT(procellariiformes.size() == 8); + } + + void testRemoveFrom() { + EnumSet<SeaBird> likes = mPetrels; + likes -= TRUE_PETREL; + likes -= DIVING_PETREL; + MOZ_RELEASE_ASSERT(likes.size() == 2); + MOZ_RELEASE_ASSERT(likes.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(STORM_PETREL)); + } + + void testRemove() { + EnumSet<SeaBird> likes = mPetrels - TRUE_PETREL - DIVING_PETREL; + MOZ_RELEASE_ASSERT(likes.size() == 2); + MOZ_RELEASE_ASSERT(likes.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(STORM_PETREL)); + } + + void testRemoveAllFrom() { + EnumSet<SeaBird> likes = mPetrels; + likes -= mPetrelProcellariidae; + MOZ_RELEASE_ASSERT(likes.size() == 2); + MOZ_RELEASE_ASSERT(likes.contains(DIVING_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(STORM_PETREL)); + } + + void testRemoveAll() { + EnumSet<SeaBird> likes = mPetrels - mPetrelProcellariidae; + MOZ_RELEASE_ASSERT(likes.size() == 2); + MOZ_RELEASE_ASSERT(likes.contains(DIVING_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(STORM_PETREL)); + } + + void testIntersect() { + EnumSet<SeaBird> likes = mPetrels; + likes &= mPetrelProcellariidae; + MOZ_RELEASE_ASSERT(likes.size() == 2); + MOZ_RELEASE_ASSERT(likes.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(TRUE_PETREL)); + } + + void testInsersection() { + EnumSet<SeaBird> likes = mPetrels & mPetrelProcellariidae; + MOZ_RELEASE_ASSERT(likes.size() == 2); + MOZ_RELEASE_ASSERT(likes.contains(GADFLY_PETREL)); + MOZ_RELEASE_ASSERT(likes.contains(TRUE_PETREL)); + } + + void testEquality() { + EnumSet<SeaBird> likes = mPetrels & mPetrelProcellariidae; + MOZ_RELEASE_ASSERT(likes == EnumSet<SeaBird>(GADFLY_PETREL, TRUE_PETREL)); + } + + void testDuplicates() { + EnumSet<SeaBird> likes = mPetrels; + likes += GADFLY_PETREL; + likes += TRUE_PETREL; + likes += DIVING_PETREL; + likes += STORM_PETREL; + MOZ_RELEASE_ASSERT(likes.size() == 4); + MOZ_RELEASE_ASSERT(likes == mPetrels); + } + + void testIteration() { + EnumSet<SeaBird> birds; + Vector<SeaBird> vec; + + for (auto bird : birds) { + MOZ_RELEASE_ASSERT(vec.append(bird)); + } + MOZ_RELEASE_ASSERT(vec.length() == 0); + + birds += DIVING_PETREL; + birds += GADFLY_PETREL; + birds += STORM_PETREL; + birds += TRUE_PETREL; + for (auto bird : birds) { + MOZ_RELEASE_ASSERT(vec.append(bird)); + } + + MOZ_RELEASE_ASSERT(vec.length() == 4); + MOZ_RELEASE_ASSERT(vec[0] == GADFLY_PETREL); + MOZ_RELEASE_ASSERT(vec[1] == TRUE_PETREL); + MOZ_RELEASE_ASSERT(vec[2] == DIVING_PETREL); + MOZ_RELEASE_ASSERT(vec[3] == STORM_PETREL); + } + + void testInitializerListConstuctor() { + EnumSet<SeaBird> empty{}; + MOZ_RELEASE_ASSERT(empty.size() == 0); + + EnumSet<SeaBird> someBirds{SKIMMER, GULL, BOOBY}; + MOZ_RELEASE_ASSERT(someBirds.size() == 3); + MOZ_RELEASE_ASSERT(someBirds.contains(SKIMMER)); + MOZ_RELEASE_ASSERT(someBirds.contains(GULL)); + MOZ_RELEASE_ASSERT(someBirds.contains(BOOBY)); + } + + void testBigEnum() { + EnumSet<BigEnum> set; + set += BigEnum::Bar; + MOZ_RELEASE_ASSERT(set.serialize() == + (uint64_t(1) << uint64_t(BigEnum::Bar))); + } + + EnumSet<SeaBird> mAlcidae; + EnumSet<SeaBird> mDiomedeidae; + EnumSet<SeaBird> mPetrelProcellariidae; + EnumSet<SeaBird> mNonPetrelProcellariidae; + EnumSet<SeaBird> mPetrels; +}; + +int main() { + EnumSetSuite suite; + suite.runTests(); + return 0; +} |