60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
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// Copyright 2019 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 "src/heap/factory.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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namespace internal {
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using WeakArrayListTest = TestWithIsolate;
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TEST_F(WeakArrayListTest, Compact) {
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Handle<WeakArrayList> list = isolate()->factory()->NewWeakArrayList(10);
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EXPECT_EQ(list->length(), 0);
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EXPECT_EQ(list->capacity(), 10);
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MaybeObject some_object =
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MaybeObject::FromObject(*isolate()->factory()->empty_fixed_array());
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MaybeObject weak_ref = MaybeObject::MakeWeak(some_object);
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MaybeObject smi = MaybeObject::FromSmi(Smi::FromInt(0));
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MaybeObject cleared_ref = HeapObjectReference::ClearedValue(isolate());
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list->Set(0, weak_ref);
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list->Set(1, smi);
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list->Set(2, cleared_ref);
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list->Set(3, cleared_ref);
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list->set_length(5);
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list->Compact(isolate());
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EXPECT_EQ(list->length(), 3);
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EXPECT_EQ(list->capacity(), 10);
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}
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TEST_F(WeakArrayListTest, OutOfPlaceCompact) {
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Handle<WeakArrayList> list = isolate()->factory()->NewWeakArrayList(20);
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EXPECT_EQ(list->length(), 0);
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EXPECT_EQ(list->capacity(), 20);
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MaybeObject some_object =
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MaybeObject::FromObject(*isolate()->factory()->empty_fixed_array());
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MaybeObject weak_ref = MaybeObject::MakeWeak(some_object);
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MaybeObject smi = MaybeObject::FromSmi(Smi::FromInt(0));
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MaybeObject cleared_ref = HeapObjectReference::ClearedValue(isolate());
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list->Set(0, weak_ref);
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list->Set(1, smi);
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list->Set(2, cleared_ref);
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list->Set(3, smi);
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list->Set(4, cleared_ref);
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list->set_length(6);
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Handle<WeakArrayList> compacted =
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isolate()->factory()->CompactWeakArrayList(list, 4);
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EXPECT_EQ(list->length(), 6);
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EXPECT_EQ(compacted->length(), 4);
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EXPECT_EQ(compacted->capacity(), 4);
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}
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} // namespace internal
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} // namespace v8
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