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
21 namespace art {
22
23 class 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
TEST_F(CHATest,CHACheckDependency)35 TEST_F(CHATest, CHACheckDependency) {
36 ClassHierarchyAnalysis cha;
37 MutexLock cha_mu(Thread::Current(), *Locks::cha_lock_);
38
39 ASSERT_TRUE(cha.GetDependents(METHOD1).empty());
40 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
41 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
42
43 cha.AddDependency(METHOD1, METHOD2, METHOD_HEADER2);
44 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
45 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
46 auto dependents = cha.GetDependents(METHOD1);
47 ASSERT_EQ(dependents.size(), 1u);
48 ASSERT_EQ(dependents[0].first, METHOD2);
49 ASSERT_EQ(dependents[0].second, METHOD_HEADER2);
50
51 cha.AddDependency(METHOD1, METHOD3, METHOD_HEADER3);
52 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
53 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
54 dependents = cha.GetDependents(METHOD1);
55 ASSERT_EQ(dependents.size(), 2u);
56 ASSERT_EQ(dependents[0].first, METHOD2);
57 ASSERT_EQ(dependents[0].second, METHOD_HEADER2);
58 ASSERT_EQ(dependents[1].first, METHOD3);
59 ASSERT_EQ(dependents[1].second, METHOD_HEADER3);
60
61 std::unordered_set<OatQuickMethodHeader*> headers;
62 headers.insert(METHOD_HEADER2);
63 cha.RemoveDependentsWithMethodHeaders(headers);
64 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
65 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
66 dependents = cha.GetDependents(METHOD1);
67 ASSERT_EQ(dependents.size(), 1u);
68 ASSERT_EQ(dependents[0].first, METHOD3);
69 ASSERT_EQ(dependents[0].second, METHOD_HEADER3);
70
71 cha.AddDependency(METHOD2, METHOD1, METHOD_HEADER1);
72 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
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_TRUE(cha.GetDependents(METHOD1).empty());
81 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
82 dependents = cha.GetDependents(METHOD2);
83 ASSERT_EQ(dependents.size(), 1u);
84 ASSERT_EQ(dependents[0].first, METHOD1);
85 ASSERT_EQ(dependents[0].second, METHOD_HEADER1);
86
87 cha.RemoveAllDependenciesFor(METHOD2);
88 ASSERT_TRUE(cha.GetDependents(METHOD1).empty());
89 ASSERT_TRUE(cha.GetDependents(METHOD2).empty());
90 ASSERT_TRUE(cha.GetDependents(METHOD3).empty());
91 }
92
93 } // namespace art
94