heap_test.cc revision a1ce1fef2d49d1d537776a5308ace7102a815fe5 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "common_runtime_test.h"
18#include "gc/accounting/card_table-inl.h"
19#include "gc/accounting/space_bitmap-inl.h"
20#include "mirror/class-inl.h"
21#include "mirror/object-inl.h"
22#include "mirror/object_array-inl.h"
23#include "sirt_ref.h"
24
25namespace art {
26namespace gc {
27
28class HeapTest : public CommonRuntimeTest {};
29
30TEST_F(HeapTest, ClearGrowthLimit) {
31  Heap* heap = Runtime::Current()->GetHeap();
32  int64_t max_memory_before = heap->GetMaxMemory();
33  int64_t total_memory_before = heap->GetTotalMemory();
34  heap->ClearGrowthLimit();
35  int64_t max_memory_after = heap->GetMaxMemory();
36  int64_t total_memory_after = heap->GetTotalMemory();
37  EXPECT_GE(max_memory_after, max_memory_before);
38  EXPECT_GE(total_memory_after, total_memory_before);
39}
40
41TEST_F(HeapTest, GarbageCollectClassLinkerInit) {
42  {
43    ScopedObjectAccess soa(Thread::Current());
44    // garbage is created during ClassLinker::Init
45
46    SirtRef<mirror::Class> c(soa.Self(), class_linker_->FindSystemClass(soa.Self(),
47                                                                        "[Ljava/lang/Object;"));
48    for (size_t i = 0; i < 1024; ++i) {
49      SirtRef<mirror::ObjectArray<mirror::Object> > array(soa.Self(),
50          mirror::ObjectArray<mirror::Object>::Alloc(soa.Self(), c.get(), 2048));
51      for (size_t j = 0; j < 2048; ++j) {
52        mirror::String* string = mirror::String::AllocFromModifiedUtf8(soa.Self(), "hello, world!");
53        // SIRT operator -> deferences the SIRT before running the method.
54        array->Set<false>(j, string);
55      }
56    }
57  }
58  Runtime::Current()->GetHeap()->CollectGarbage(false);
59}
60
61TEST_F(HeapTest, HeapBitmapCapacityTest) {
62  byte* heap_begin = reinterpret_cast<byte*>(0x1000);
63  const size_t heap_capacity = accounting::SpaceBitmap::kAlignment * (sizeof(intptr_t) * 8 + 1);
64  UniquePtr<accounting::SpaceBitmap> bitmap(accounting::SpaceBitmap::Create("test bitmap",
65                                                                            heap_begin,
66                                                                            heap_capacity));
67  mirror::Object* fake_end_of_heap_object =
68      reinterpret_cast<mirror::Object*>(&heap_begin[heap_capacity -
69                                                    accounting::SpaceBitmap::kAlignment]);
70  bitmap->Set(fake_end_of_heap_object);
71}
72
73}  // namespace gc
74}  // namespace art
75