73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
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// Copyright 2021 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <limits>
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#include "src/objects/property-details.h"
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#include "test/cctest/cctest.h"
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namespace v8 {
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namespace internal {
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namespace {
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std::vector<PropertyDetails> make_details() {
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std::vector<PropertyDetails> result;
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for (PropertyKind kind : {PropertyKind::kData, PropertyKind::kAccessor}) {
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for (PropertyConstness constness :
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{PropertyConstness::kConst, PropertyConstness::kMutable}) {
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for (PropertyCellType cell_type :
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{PropertyCellType::kConstant, PropertyCellType::kConstantType,
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PropertyCellType::kMutable, PropertyCellType::kUndefined,
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PropertyCellType::kNoCell}) {
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for (int attrs = 0; attrs < 8; ++attrs) {
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PropertyAttributes attributes =
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static_cast<PropertyAttributes>(attrs);
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PropertyDetails details(kind, attributes, cell_type);
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details = details.CopyWithConstness(constness);
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result.push_back(details);
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}
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}
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}
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}
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return result;
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}
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} // namespace
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#ifndef DEBUG
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// This test will trigger a DCHECK failure in debug mode. We must ensure that in
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// release mode, the enum index doesn't interfere with other fields once it
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// becomes too large.
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TEST(ExceedMaxEnumerationIndex) {
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int too_large_enum_index = std::numeric_limits<int>::max();
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for (PropertyDetails d : make_details()) {
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PropertyDetails copy(d);
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d = d.set_index(too_large_enum_index);
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CHECK_EQ(copy.kind(), d.kind());
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CHECK_EQ(copy.location(), d.location());
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CHECK_EQ(copy.attributes(), d.attributes());
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CHECK_EQ(copy.cell_type(), d.cell_type());
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CHECK_EQ(PropertyDetails::DictionaryStorageField::kMax,
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d.dictionary_index());
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}
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}
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#endif
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TEST(AsByte) {
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for (PropertyDetails original : make_details()) {
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if (original.cell_type() != PropertyCellType::kNoCell) continue;
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uint8_t as_byte = original.ToByte();
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PropertyDetails from_byte = PropertyDetails::FromByte(as_byte);
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CHECK_EQ(original, from_byte);
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}
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}
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} // namespace internal
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} // namespace v8
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