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