blob: 9e39f7ca47d60dc073b94109842b8b42d8b3bc33 [file] [log] [blame]
// Copyright 2019 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/v8.h"
#include "src/api/api-inl.h"
#include "src/execution/isolate.h"
#include "src/heap/combined-heap.h"
#include "src/heap/heap.h"
#include "src/heap/read-only-heap.h"
#include "src/objects/heap-object.h"
#include "src/objects/objects.h"
#include "src/roots/roots-inl.h"
#include "test/cctest/cctest.h"
namespace v8 {
namespace internal {
namespace heap {
TEST(HeapIteratorNullPastEnd) {
HeapIterator iterator(CcTest::heap());
while (!iterator.next().is_null()) {
}
for (int i = 0; i < 20; i++) {
CHECK(iterator.next().is_null());
}
}
TEST(ReadOnlyHeapIteratorNullPastEnd) {
ReadOnlyHeapIterator iterator(CcTest::heap()->read_only_heap());
while (!iterator.Next().is_null()) {
}
for (int i = 0; i < 20; i++) {
CHECK(iterator.Next().is_null());
}
}
TEST(CombinedHeapIteratorNullPastEnd) {
CombinedHeapIterator iterator(CcTest::heap());
while (!iterator.Next().is_null()) {
}
for (int i = 0; i < 20; i++) {
CHECK(iterator.Next().is_null());
}
}
namespace {
// An arbitrary object guaranteed to live on the non-read-only heap.
Object CreateWritableObject() {
return *v8::Utils::OpenHandle(*v8::Object::New(CcTest::isolate()));
}
} // namespace
TEST(ReadOnlyHeapIterator) {
CcTest::InitializeVM();
HandleScope handle_scope(CcTest::i_isolate());
const Object sample_object = CreateWritableObject();
ReadOnlyHeapIterator iterator(CcTest::read_only_heap());
for (HeapObject obj = iterator.Next(); !obj.is_null();
obj = iterator.Next()) {
CHECK(ReadOnlyHeap::Contains(obj));
CHECK(!CcTest::heap()->Contains(obj));
CHECK_NE(sample_object, obj);
}
}
TEST(HeapIterator) {
CcTest::InitializeVM();
HandleScope handle_scope(CcTest::i_isolate());
const Object sample_object = CreateWritableObject();
HeapIterator iterator(CcTest::heap());
bool seen_sample_object = false;
for (HeapObject obj = iterator.next(); !obj.is_null();
obj = iterator.next()) {
CHECK(!ReadOnlyHeap::Contains(obj));
CHECK(CcTest::heap()->Contains(obj));
if (sample_object == obj) seen_sample_object = true;
}
CHECK(seen_sample_object);
}
TEST(CombinedHeapIterator) {
CcTest::InitializeVM();
HandleScope handle_scope(CcTest::i_isolate());
const Object sample_object = CreateWritableObject();
CombinedHeapIterator iterator(CcTest::heap());
bool seen_sample_object = false;
for (HeapObject obj = iterator.Next(); !obj.is_null();
obj = iterator.Next()) {
CHECK(IsValidHeapObject(CcTest::heap(), obj));
if (sample_object == obj) seen_sample_object = true;
}
CHECK(seen_sample_object);
}
} // namespace heap
} // namespace internal
} // namespace v8