reference_table_test.cc revision e401d146407d61eeb99f8d6176b2ac13c4df1e33 
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
27namespace art {
28
29class ReferenceTableTest : public CommonRuntimeTest {};
30
31TEST_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