Upload Kmake

deps/v8/test/unittests/heap/cppgc/liveness-broker-unittest.cc

@@ -0,0 +1,45 @@
+// Copyright 2021 the V8 project 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 "include/cppgc/liveness-broker.h"
+
+#include "include/cppgc/allocation.h"
+#include "include/cppgc/garbage-collected.h"
+#include "src/heap/cppgc/heap-object-header.h"
+#include "src/heap/cppgc/liveness-broker.h"
+#include "test/unittests/heap/cppgc/tests.h"
+
+namespace cppgc {
+namespace internal {
+
+namespace {
+
+using LivenessBrokerTest = testing::TestSupportingAllocationOnly;
+
+class GCed : public GarbageCollected<GCed> {
+ public:
+  void Trace(cppgc::Visitor*) const {}
+};
+
+}  // namespace
+
+TEST_F(LivenessBrokerTest, IsHeapObjectAliveForConstPointer) {
+  // Regression test: http://crbug.com/661363.
+  GCed* object = MakeGarbageCollected<GCed>(GetAllocationHandle());
+  HeapObjectHeader& header = HeapObjectHeader::FromObject(object);
+  LivenessBroker broker = internal::LivenessBrokerFactory::Create();
+  EXPECT_TRUE(header.TryMarkAtomic());
+  EXPECT_TRUE(broker.IsHeapObjectAlive(object));
+  const GCed* const_object = const_cast<const GCed*>(object);
+  EXPECT_TRUE(broker.IsHeapObjectAlive(const_object));
+}
+
+TEST_F(LivenessBrokerTest, IsHeapObjectAliveNullptr) {
+  GCed* object = nullptr;
+  LivenessBroker broker = internal::LivenessBrokerFactory::Create();
+  EXPECT_TRUE(broker.IsHeapObjectAlive(object));
+}
+
+}  // namespace internal
+}  // namespace cppgc