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 "reference_table.h"
18
19 #include "common_runtime_test.h"
20 #include "mirror/array-inl.h"
21 #include "mirror/class-inl.h"
22 #include "mirror/string.h"
23 #include "primitive.h"
24 #include "scoped_thread_state_change.h"
25 #include "thread-inl.h"
26
27 namespace art {
28
29 class ReferenceTableTest : public CommonRuntimeTest {};
30
TEST_F(ReferenceTableTest,Basics)31 TEST_F(ReferenceTableTest, Basics) {
32 ScopedObjectAccess soa(Thread::Current());
33 mirror::Object* o1 = mirror::String::AllocFromModifiedUtf8(soa.Self(), "hello");
34
35 ReferenceTable rt("test", 0, 11);
36
37 // Check dumping the empty table.
38 {
39 std::ostringstream oss;
40 rt.Dump(oss);
41 EXPECT_NE(oss.str().find("(empty)"), std::string::npos) << oss.str();
42 EXPECT_EQ(0U, rt.Size());
43 }
44
45 // Check removal of all nullss in a empty table is a no-op.
46 rt.Remove(nullptr);
47 EXPECT_EQ(0U, rt.Size());
48
49 // Check removal of all o1 in a empty table is a no-op.
50 rt.Remove(o1);
51 EXPECT_EQ(0U, rt.Size());
52
53 // Add o1 and check we have 1 element and can dump.
54 {
55 rt.Add(o1);
56 EXPECT_EQ(1U, rt.Size());
57 std::ostringstream oss;
58 rt.Dump(oss);
59 EXPECT_NE(oss.str().find("1 of java.lang.String"), std::string::npos) << oss.str();
60 EXPECT_EQ(oss.str().find("short[]"), std::string::npos) << oss.str();
61 }
62
63 // Add a second object 10 times and check dumping is sane.
64 mirror::Object* o2 = mirror::ShortArray::Alloc(soa.Self(), 0);
65 for (size_t i = 0; i < 10; ++i) {
66 rt.Add(o2);
67 EXPECT_EQ(i + 2, rt.Size());
68 std::ostringstream oss;
69 rt.Dump(oss);
70 EXPECT_NE(oss.str().find(StringPrintf("Last %zd entries (of %zd):",
71 i + 2 > 10 ? 10 : i + 2,
72 i + 2)),
73 std::string::npos) << oss.str();
74 EXPECT_NE(oss.str().find("1 of java.lang.String"), std::string::npos) << oss.str();
75 if (i == 0) {
76 EXPECT_NE(oss.str().find("1 of short[]"), std::string::npos) << oss.str();
77 } else {
78 EXPECT_NE(oss.str().find(StringPrintf("%zd of short[] (1 unique instances)", i + 1)),
79 std::string::npos) << oss.str();
80 }
81 }
82
83 // Remove o1 (first element).
84 {
85 rt.Remove(o1);
86 EXPECT_EQ(10U, rt.Size());
87 std::ostringstream oss;
88 rt.Dump(oss);
89 EXPECT_EQ(oss.str().find("java.lang.String"), std::string::npos) << oss.str();
90 }
91
92 // Remove o2 ten times.
93 for (size_t i = 0; i < 10; ++i) {
94 rt.Remove(o2);
95 EXPECT_EQ(9 - i, rt.Size());
96 std::ostringstream oss;
97 rt.Dump(oss);
98 if (i == 9) {
99 EXPECT_EQ(oss.str().find("short[]"), std::string::npos) << oss.str();
100 } else if (i == 8) {
101 EXPECT_NE(oss.str().find("1 of short[]"), std::string::npos) << oss.str();
102 } else {
103 EXPECT_NE(oss.str().find(StringPrintf("%zd of short[] (1 unique instances)", 10 - i - 1)),
104 std::string::npos) << oss.str();
105 }
106 }
107 }
108
109 } // namespace art
110