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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/heap/gc_info.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace blink {
TEST(GCInfoTest, InitialEmpty) {
GCInfoTable table;
EXPECT_EQ(GCInfoTable::kMinIndex, table.NumberOfGCInfos());
}
TEST(GCInfoTest, ResizeToMaxIndex) {
GCInfoTable table;
GCInfo info = {nullptr, nullptr, nullptr, false};
std::atomic<GCInfoIndex> slot{0};
for (GCInfoIndex i = GCInfoTable::kMinIndex; i < GCInfoTable::kMaxIndex;
i++) {
slot = 0;
GCInfoIndex index = table.EnsureGCInfoIndex(&info, &slot);
EXPECT_EQ(index, slot);
EXPECT_LT(0u, slot);
EXPECT_EQ(&info, &table.GCInfoFromIndex(index));
}
}
TEST(GCInfoDeathTest, MoreThanMaxIndexInfos) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
GCInfoTable table;
GCInfo info = {nullptr, nullptr, nullptr, false};
std::atomic<GCInfoIndex> slot{0};
// Create GCInfoTable::kMaxIndex entries.
for (GCInfoIndex i = GCInfoTable::kMinIndex; i < GCInfoTable::kMaxIndex;
i++) {
slot = 0;
table.EnsureGCInfoIndex(&info, &slot);
}
slot = 0;
EXPECT_DEATH(table.EnsureGCInfoIndex(&info, &slot), "");
}
} // namespace blink
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