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 "base/common_art_test.h"
20 #include "thread-current-inl.h"
21
22 namespace art HIDDEN {
23
24 class CHATest : public CommonArtTest {};
25
26 // Mocks some methods.
27 #define METHOD1 (reinterpret_cast<ArtMethod*>(8u))
28 #define METHOD2 (reinterpret_cast<ArtMethod*>(16u))
29 #define METHOD3 (reinterpret_cast<ArtMethod*>(24u))
30
31 // Mocks some method headers.
32 #define METHOD_HEADER1 (reinterpret_cast<OatQuickMethodHeader*>(128u))
33 #define METHOD_HEADER2 (reinterpret_cast<OatQuickMethodHeader*>(136u))
34 #define METHOD_HEADER3 (reinterpret_cast<OatQuickMethodHeader*>(144u))
35
TEST_F(CHATest,CHACheckDependency)36 TEST_F(CHATest, CHACheckDependency) {
37 ClassHierarchyAnalysis cha;
38 MutexLock cha_mu(Thread::Current(), *Locks::cha_lock_);
39
40 ASSERT_TRUE(cha.GetDependents(METHOD1).empty());
41 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
42 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
43
44 cha.AddDependency(METHOD1, METHOD2, METHOD_HEADER2);
45 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
46 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
47 auto dependents = cha.GetDependents(METHOD1);
48 ASSERT_EQ(dependents.size(), 1u);
49 ASSERT_EQ(dependents[0].first, METHOD2);
50 ASSERT_EQ(dependents[0].second, METHOD_HEADER2);
51
52 cha.AddDependency(METHOD1, METHOD3, METHOD_HEADER3);
53 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
54 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
55 dependents = cha.GetDependents(METHOD1);
56 ASSERT_EQ(dependents.size(), 2u);
57 ASSERT_EQ(dependents[0].first, METHOD2);
58 ASSERT_EQ(dependents[0].second, METHOD_HEADER2);
59 ASSERT_EQ(dependents[1].first, METHOD3);
60 ASSERT_EQ(dependents[1].second, METHOD_HEADER3);
61
62 std::unordered_set<OatQuickMethodHeader*> headers;
63 headers.insert(METHOD_HEADER2);
64 cha.RemoveDependentsWithMethodHeaders(headers);
65 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
66 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
67 dependents = cha.GetDependents(METHOD1);
68 ASSERT_EQ(dependents.size(), 1u);
69 ASSERT_EQ(dependents[0].first, METHOD3);
70 ASSERT_EQ(dependents[0].second, METHOD_HEADER3);
71
72 cha.AddDependency(METHOD2, METHOD1, METHOD_HEADER1);
73 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
74 dependents = cha.GetDependents(METHOD1);
75 ASSERT_EQ(dependents.size(), 1u);
76 dependents = cha.GetDependents(METHOD2);
77 ASSERT_EQ(dependents.size(), 1u);
78
79 headers.insert(METHOD_HEADER3);
80 cha.RemoveDependentsWithMethodHeaders(headers);
81 ASSERT_TRUE(cha.GetDependents(METHOD1).empty());
82 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
83 dependents = cha.GetDependents(METHOD2);
84 ASSERT_EQ(dependents.size(), 1u);
85 ASSERT_EQ(dependents[0].first, METHOD1);
86 ASSERT_EQ(dependents[0].second, METHOD_HEADER1);
87
88 cha.RemoveAllDependenciesFor(METHOD2);
89 ASSERT_TRUE(cha.GetDependents(METHOD1).empty());
90 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
91 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
92 }
93
94 } // namespace art
95