1/*
2 * Copyright (C) 2016 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 "cha.h"
18
19#include "common_runtime_test.h"
20
21namespace art {
22
23class CHATest : public CommonRuntimeTest {};
24
25// Mocks some methods.
26#define METHOD1 (reinterpret_cast<ArtMethod*>(8u))
27#define METHOD2 (reinterpret_cast<ArtMethod*>(16u))
28#define METHOD3 (reinterpret_cast<ArtMethod*>(24u))
29
30// Mocks some method headers.
31#define METHOD_HEADER1 (reinterpret_cast<OatQuickMethodHeader*>(128u))
32#define METHOD_HEADER2 (reinterpret_cast<OatQuickMethodHeader*>(136u))
33#define METHOD_HEADER3 (reinterpret_cast<OatQuickMethodHeader*>(144u))
34
35TEST_F(CHATest, CHACheckDependency) {
36  ClassHierarchyAnalysis cha;
37  MutexLock cha_mu(Thread::Current(), *Locks::cha_lock_);
38
39  ASSERT_EQ(cha.GetDependents(METHOD1), nullptr);
40  ASSERT_EQ(cha.GetDependents(METHOD2), nullptr);
41  ASSERT_EQ(cha.GetDependents(METHOD3), nullptr);
42
43  cha.AddDependency(METHOD1, METHOD2, METHOD_HEADER2);
44  ASSERT_EQ(cha.GetDependents(METHOD2), nullptr);
45  ASSERT_EQ(cha.GetDependents(METHOD3), nullptr);
46  auto dependents = cha.GetDependents(METHOD1);
47  ASSERT_EQ(dependents->size(), 1u);
48  ASSERT_EQ(dependents->at(0).first, METHOD2);
49  ASSERT_EQ(dependents->at(0).second, METHOD_HEADER2);
50
51  cha.AddDependency(METHOD1, METHOD3, METHOD_HEADER3);
52  ASSERT_EQ(cha.GetDependents(METHOD2), nullptr);
53  ASSERT_EQ(cha.GetDependents(METHOD3), nullptr);
54  dependents = cha.GetDependents(METHOD1);
55  ASSERT_EQ(dependents->size(), 2u);
56  ASSERT_EQ(dependents->at(0).first, METHOD2);
57  ASSERT_EQ(dependents->at(0).second, METHOD_HEADER2);
58  ASSERT_EQ(dependents->at(1).first, METHOD3);
59  ASSERT_EQ(dependents->at(1).second, METHOD_HEADER3);
60
61  std::unordered_set<OatQuickMethodHeader*> headers;
62  headers.insert(METHOD_HEADER2);
63  cha.RemoveDependentsWithMethodHeaders(headers);
64  ASSERT_EQ(cha.GetDependents(METHOD2), nullptr);
65  ASSERT_EQ(cha.GetDependents(METHOD3), nullptr);
66  dependents = cha.GetDependents(METHOD1);
67  ASSERT_EQ(dependents->size(), 1u);
68  ASSERT_EQ(dependents->at(0).first, METHOD3);
69  ASSERT_EQ(dependents->at(0).second, METHOD_HEADER3);
70
71  cha.AddDependency(METHOD2, METHOD1, METHOD_HEADER1);
72  ASSERT_EQ(cha.GetDependents(METHOD3), nullptr);
73  dependents = cha.GetDependents(METHOD1);
74  ASSERT_EQ(dependents->size(), 1u);
75  dependents = cha.GetDependents(METHOD2);
76  ASSERT_EQ(dependents->size(), 1u);
77
78  headers.insert(METHOD_HEADER3);
79  cha.RemoveDependentsWithMethodHeaders(headers);
80  ASSERT_EQ(cha.GetDependents(METHOD1), nullptr);
81  ASSERT_EQ(cha.GetDependents(METHOD3), nullptr);
82  dependents = cha.GetDependents(METHOD2);
83  ASSERT_EQ(dependents->size(), 1u);
84  ASSERT_EQ(dependents->at(0).first, METHOD1);
85  ASSERT_EQ(dependents->at(0).second, METHOD_HEADER1);
86
87  cha.RemoveDependencyFor(METHOD2);
88  ASSERT_EQ(cha.GetDependents(METHOD1), nullptr);
89  ASSERT_EQ(cha.GetDependents(METHOD2), nullptr);
90  ASSERT_EQ(cha.GetDependents(METHOD3), nullptr);
91}
92
93}  // namespace art
94