1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
content / browser / indexed_db / instance / active_blob_registry_unittest.cc [blame]
// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/indexed_db/instance/active_blob_registry.h"
#include <stdint.h>
#include <memory>
#include <set>
#include "base/containers/contains.h"
#include "base/functional/bind.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content::indexed_db {
namespace {
struct ReportOutstandingState {
int true_calls = 0;
int false_calls = 0;
bool no_calls() { return true_calls == 0 && false_calls == 0; }
};
void ReportOutstandingBlobs(ReportOutstandingState* state,
bool blobs_outstanding) {
if (blobs_outstanding) {
++state->true_calls;
} else {
++state->false_calls;
}
}
struct UnusedBlob {
int64_t database_id;
int64_t blob_number;
bool operator<(const UnusedBlob& other) const {
if (database_id == other.database_id) {
return blob_number < other.blob_number;
}
return database_id < other.database_id;
}
};
void ReportUnusedBlob(std::set<UnusedBlob>* unused_blob_records,
int64_t database_id,
int64_t blob_number) {
unused_blob_records->insert({database_id, blob_number});
}
// Base class for our test fixtures.
class ActiveBlobRegistryTest : public testing::Test {
public:
static const int64_t kDatabaseId0 = 7;
static const int64_t kDatabaseId1 = 12;
static const int64_t kBlobNumber0 = 77;
static const int64_t kBlobNumber1 = 14;
ActiveBlobRegistryTest()
: registry_(std::make_unique<ActiveBlobRegistry>(
base::BindRepeating(ReportOutstandingBlobs,
&report_outstanding_state_),
base::BindRepeating(&ReportUnusedBlob, &unused_blobs_))) {}
ActiveBlobRegistryTest(const ActiveBlobRegistryTest&) = delete;
ActiveBlobRegistryTest& operator=(const ActiveBlobRegistryTest&) = delete;
void RunUntilIdle() { task_environment_.RunUntilIdle(); }
ActiveBlobRegistry* registry() const { return registry_.get(); }
protected:
ReportOutstandingState report_outstanding_state_;
std::set<UnusedBlob> unused_blobs_;
private:
base::test::TaskEnvironment task_environment_;
std::unique_ptr<ActiveBlobRegistry> registry_;
};
TEST_F(ActiveBlobRegistryTest, DeleteUnused) {
EXPECT_TRUE(report_outstanding_state_.no_calls());
EXPECT_TRUE(unused_blobs_.empty());
EXPECT_FALSE(registry()->MarkBlobInfoDeletedAndCheckIfReferenced(
kDatabaseId0, kBlobNumber0));
RunUntilIdle();
EXPECT_TRUE(report_outstanding_state_.no_calls());
EXPECT_TRUE(unused_blobs_.empty());
}
TEST_F(ActiveBlobRegistryTest, SimpleUse) {
EXPECT_TRUE(report_outstanding_state_.no_calls());
EXPECT_TRUE(unused_blobs_.empty());
auto add_ref =
registry()->GetMarkBlobActiveCallback(kDatabaseId0, kBlobNumber0);
auto release =
registry()->GetFinalReleaseCallback(kDatabaseId0, kBlobNumber0);
std::move(add_ref).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
std::move(release).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(1, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
}
TEST_F(ActiveBlobRegistryTest, DeleteWhileInUse) {
EXPECT_TRUE(report_outstanding_state_.no_calls());
EXPECT_TRUE(unused_blobs_.empty());
auto add_ref =
registry()->GetMarkBlobActiveCallback(kDatabaseId0, kBlobNumber0);
auto release =
registry()->GetFinalReleaseCallback(kDatabaseId0, kBlobNumber0);
std::move(add_ref).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
EXPECT_TRUE(registry()->MarkBlobInfoDeletedAndCheckIfReferenced(
kDatabaseId0, kBlobNumber0));
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
std::move(release).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(1, report_outstanding_state_.false_calls);
UnusedBlob unused_blob = {kDatabaseId0, kBlobNumber0};
EXPECT_EQ(1u, unused_blobs_.size());
EXPECT_TRUE(base::Contains(unused_blobs_, unused_blob));
}
TEST_F(ActiveBlobRegistryTest, MultipleBlobs) {
EXPECT_TRUE(report_outstanding_state_.no_calls());
EXPECT_TRUE(unused_blobs_.empty());
auto add_ref_00 =
registry()->GetMarkBlobActiveCallback(kDatabaseId0, kBlobNumber0);
auto release_00 =
registry()->GetFinalReleaseCallback(kDatabaseId0, kBlobNumber0);
auto add_ref_01 =
registry()->GetMarkBlobActiveCallback(kDatabaseId0, kBlobNumber1);
auto release_01 =
registry()->GetFinalReleaseCallback(kDatabaseId0, kBlobNumber1);
auto add_ref_10 =
registry()->GetMarkBlobActiveCallback(kDatabaseId1, kBlobNumber0);
auto release_10 =
registry()->GetFinalReleaseCallback(kDatabaseId1, kBlobNumber0);
auto add_ref_11 =
registry()->GetMarkBlobActiveCallback(kDatabaseId1, kBlobNumber1);
auto release_11 =
registry()->GetFinalReleaseCallback(kDatabaseId1, kBlobNumber1);
std::move(add_ref_00).Run();
std::move(add_ref_01).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
std::move(release_00).Run();
std::move(add_ref_10).Run();
std::move(add_ref_11).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
EXPECT_TRUE(registry()->MarkBlobInfoDeletedAndCheckIfReferenced(
kDatabaseId0, kBlobNumber1));
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
std::move(release_01).Run();
std::move(release_11).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
UnusedBlob unused_blob = {kDatabaseId0, kBlobNumber1};
EXPECT_TRUE(base::Contains(unused_blobs_, unused_blob));
EXPECT_EQ(1u, unused_blobs_.size());
std::move(release_10).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(1, report_outstanding_state_.false_calls);
unused_blob = {kDatabaseId0, kBlobNumber1};
EXPECT_TRUE(base::Contains(unused_blobs_, unused_blob));
EXPECT_EQ(1u, unused_blobs_.size());
}
TEST_F(ActiveBlobRegistryTest, ForceShutdown) {
EXPECT_TRUE(report_outstanding_state_.no_calls());
EXPECT_TRUE(unused_blobs_.empty());
auto add_ref_0 =
registry()->GetMarkBlobActiveCallback(kDatabaseId0, kBlobNumber0);
auto release_0 =
registry()->GetFinalReleaseCallback(kDatabaseId0, kBlobNumber0);
auto add_ref_1 =
registry()->GetMarkBlobActiveCallback(kDatabaseId0, kBlobNumber1);
auto release_1 =
registry()->GetFinalReleaseCallback(kDatabaseId0, kBlobNumber1);
std::move(add_ref_0).Run();
RunUntilIdle();
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
registry()->ForceShutdown();
std::move(add_ref_1).Run();
RunUntilIdle();
// Nothing changes.
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
std::move(release_0).Run();
std::move(release_1).Run();
RunUntilIdle();
// Nothing changes.
EXPECT_EQ(1, report_outstanding_state_.true_calls);
EXPECT_EQ(0, report_outstanding_state_.false_calls);
EXPECT_TRUE(unused_blobs_.empty());
}
} // namespace
} // namespace content::indexed_db