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 "class_linker-inl.h"
18 #include "common_runtime_test.h"
19 #include "gc/accounting/card_table-inl.h"
20 #include "gc/accounting/space_bitmap-inl.h"
21 #include "handle_scope-inl.h"
22 #include "mirror/class-inl.h"
23 #include "mirror/object-inl.h"
24 #include "mirror/object_array-inl.h"
25 #include "scoped_thread_state_change.h"
26
27 namespace art {
28 namespace gc {
29
30 class HeapTest : public CommonRuntimeTest {};
31
TEST_F(HeapTest,ClearGrowthLimit)32 TEST_F(HeapTest, ClearGrowthLimit) {
33 Heap* heap = Runtime::Current()->GetHeap();
34 int64_t max_memory_before = heap->GetMaxMemory();
35 int64_t total_memory_before = heap->GetTotalMemory();
36 heap->ClearGrowthLimit();
37 int64_t max_memory_after = heap->GetMaxMemory();
38 int64_t total_memory_after = heap->GetTotalMemory();
39 EXPECT_GE(max_memory_after, max_memory_before);
40 EXPECT_GE(total_memory_after, total_memory_before);
41 }
42
TEST_F(HeapTest,GarbageCollectClassLinkerInit)43 TEST_F(HeapTest, GarbageCollectClassLinkerInit) {
44 {
45 ScopedObjectAccess soa(Thread::Current());
46 // garbage is created during ClassLinker::Init
47
48 StackHandleScope<1> hs(soa.Self());
49 Handle<mirror::Class> c(
50 hs.NewHandle(class_linker_->FindSystemClass(soa.Self(), "[Ljava/lang/Object;")));
51 for (size_t i = 0; i < 1024; ++i) {
52 StackHandleScope<1> hs2(soa.Self());
53 Handle<mirror::ObjectArray<mirror::Object>> array(hs2.NewHandle(
54 mirror::ObjectArray<mirror::Object>::Alloc(soa.Self(), c.Get(), 2048)));
55 for (size_t j = 0; j < 2048; ++j) {
56 mirror::String* string = mirror::String::AllocFromModifiedUtf8(soa.Self(), "hello, world!");
57 // handle scope operator -> deferences the handle scope before running the method.
58 array->Set<false>(j, string);
59 }
60 }
61 }
62 Runtime::Current()->GetHeap()->CollectGarbage(false);
63 }
64
TEST_F(HeapTest,HeapBitmapCapacityTest)65 TEST_F(HeapTest, HeapBitmapCapacityTest) {
66 uint8_t* heap_begin = reinterpret_cast<uint8_t*>(0x1000);
67 const size_t heap_capacity = kObjectAlignment * (sizeof(intptr_t) * 8 + 1);
68 std::unique_ptr<accounting::ContinuousSpaceBitmap> bitmap(
69 accounting::ContinuousSpaceBitmap::Create("test bitmap", heap_begin, heap_capacity));
70 mirror::Object* fake_end_of_heap_object =
71 reinterpret_cast<mirror::Object*>(&heap_begin[heap_capacity - kObjectAlignment]);
72 bitmap->Set(fake_end_of_heap_object);
73 }
74
75 class ZygoteHeapTest : public CommonRuntimeTest {
SetUpRuntimeOptions(RuntimeOptions * options)76 void SetUpRuntimeOptions(RuntimeOptions* options) {
77 CommonRuntimeTest::SetUpRuntimeOptions(options);
78 options->push_back(std::make_pair("-Xzygote", nullptr));
79 }
80 };
81
TEST_F(ZygoteHeapTest,PreZygoteFork)82 TEST_F(ZygoteHeapTest, PreZygoteFork) {
83 // Exercise Heap::PreZygoteFork() to check it does not crash.
84 Runtime::Current()->GetHeap()->PreZygoteFork();
85 }
86
87 } // namespace gc
88 } // namespace art
89