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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "Helpers.h"
#include "mozilla/gtest/MozAssertions.h"
#include "mozilla/Unused.h"
#include "nsICloneableInputStream.h"
#include "nsIMultiplexInputStream.h"
#include "nsNetUtil.h"
#include "nsStreamUtils.h"
#include "nsStringStream.h"
#include "nsComponentManagerUtils.h"
TEST(CloneInputStream, InvalidInput)
{
nsCOMPtr<nsIInputStream> clone;
nsresult rv = NS_CloneInputStream(nullptr, getter_AddRefs(clone));
ASSERT_NS_FAILED(rv);
ASSERT_FALSE(clone);
}
TEST(CloneInputStream, CloneableInput)
{
nsTArray<char> inputData;
testing::CreateData(4 * 1024, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> stream;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(stream), inputString);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsIInputStream> clone;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_NS_SUCCEEDED(rv);
testing::ConsumeAndValidateStream(stream, inputString);
testing::ConsumeAndValidateStream(clone, inputString);
}
class NonCloneableInputStream final : public nsIInputStream {
public:
NS_DECL_THREADSAFE_ISUPPORTS
explicit NonCloneableInputStream(
already_AddRefed<nsIInputStream> aInputStream)
: mStream(aInputStream) {}
NS_IMETHOD
Available(uint64_t* aLength) override { return mStream->Available(aLength); }
NS_IMETHOD
Read(char* aBuffer, uint32_t aCount, uint32_t* aReadCount) override {
return mStream->Read(aBuffer, aCount, aReadCount);
}
NS_IMETHOD
ReadSegments(nsWriteSegmentFun aWriter, void* aClosure, uint32_t aCount,
uint32_t* aResult) override {
return mStream->ReadSegments(aWriter, aClosure, aCount, aResult);
}
NS_IMETHOD
Close() override { return mStream->Close(); }
NS_IMETHOD
IsNonBlocking(bool* aNonBlocking) override {
return mStream->IsNonBlocking(aNonBlocking);
}
private:
~NonCloneableInputStream() = default;
nsCOMPtr<nsIInputStream> mStream;
};
NS_IMPL_ISUPPORTS(NonCloneableInputStream, nsIInputStream)
TEST(CloneInputStream, NonCloneableInput_NoFallback)
{
nsTArray<char> inputData;
testing::CreateData(4 * 1024, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsIInputStream> stream = new NonCloneableInputStream(base.forget());
nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(stream);
ASSERT_TRUE(cloneable == nullptr);
nsCOMPtr<nsIInputStream> clone;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_NS_FAILED(rv);
ASSERT_TRUE(clone == nullptr);
testing::ConsumeAndValidateStream(stream, inputString);
}
TEST(CloneInputStream, NonCloneableInput_Fallback)
{
nsTArray<char> inputData;
testing::CreateData(4 * 1024, inputData);
nsDependentCSubstring inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsIInputStream> stream = new NonCloneableInputStream(base.forget());
nsCOMPtr<nsICloneableInputStream> cloneable = do_QueryInterface(stream);
ASSERT_TRUE(cloneable == nullptr);
nsCOMPtr<nsIInputStream> clone;
nsCOMPtr<nsIInputStream> replacement;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone),
getter_AddRefs(replacement));
ASSERT_NS_SUCCEEDED(rv);
ASSERT_TRUE(clone != nullptr);
ASSERT_TRUE(replacement != nullptr);
ASSERT_TRUE(stream.get() != replacement.get());
ASSERT_TRUE(clone.get() != replacement.get());
stream = std::move(replacement);
// The stream is being copied asynchronously on the STS event target. Spin
// a yield loop here until the data is available. Yes, this is a bit hacky,
// but AFAICT, gtest does not support async test completion.
uint64_t available;
do {
mozilla::Unused << PR_Sleep(PR_INTERVAL_NO_WAIT);
rv = stream->Available(&available);
ASSERT_NS_SUCCEEDED(rv);
} while (available < inputString.Length());
testing::ConsumeAndValidateStream(stream, inputString);
testing::ConsumeAndValidateStream(clone, inputString);
}
TEST(CloneInputStream, CloneMultiplexStream)
{
nsCOMPtr<nsIMultiplexInputStream> multiplexStream =
do_CreateInstance("@mozilla.org/io/multiplex-input-stream;1");
ASSERT_TRUE(multiplexStream);
nsCOMPtr<nsIInputStream> stream(do_QueryInterface(multiplexStream));
ASSERT_TRUE(stream);
nsTArray<char> inputData;
testing::CreateData(1024, inputData);
for (uint32_t i = 0; i < 2; ++i) {
nsCString inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_NS_SUCCEEDED(rv);
rv = multiplexStream->AppendStream(base);
ASSERT_NS_SUCCEEDED(rv);
}
// Unread stream should clone successfully.
nsTArray<char> doubled;
doubled.AppendElements(inputData);
doubled.AppendElements(inputData);
nsCOMPtr<nsIInputStream> clone;
nsresult rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_NS_SUCCEEDED(rv);
testing::ConsumeAndValidateStream(clone, doubled);
// Stream that has been read should fail.
char buffer[512];
uint32_t read;
rv = stream->Read(buffer, 512, &read);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsIInputStream> clone2;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone2));
ASSERT_NS_FAILED(rv);
}
TEST(CloneInputStream, CloneMultiplexStreamPartial)
{
nsCOMPtr<nsIMultiplexInputStream> multiplexStream =
do_CreateInstance("@mozilla.org/io/multiplex-input-stream;1");
ASSERT_TRUE(multiplexStream);
nsCOMPtr<nsIInputStream> stream(do_QueryInterface(multiplexStream));
ASSERT_TRUE(stream);
nsTArray<char> inputData;
testing::CreateData(1024, inputData);
for (uint32_t i = 0; i < 2; ++i) {
nsCString inputString(inputData.Elements(), inputData.Length());
nsCOMPtr<nsIInputStream> base;
nsresult rv = NS_NewCStringInputStream(getter_AddRefs(base), inputString);
ASSERT_NS_SUCCEEDED(rv);
rv = multiplexStream->AppendStream(base);
ASSERT_NS_SUCCEEDED(rv);
}
// Fail when first stream read, but second hasn't been started.
char buffer[1024];
uint32_t read;
nsresult rv = stream->Read(buffer, 1024, &read);
ASSERT_NS_SUCCEEDED(rv);
nsCOMPtr<nsIInputStream> clone;
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_NS_FAILED(rv);
// Fail after beginning read of second stream.
rv = stream->Read(buffer, 512, &read);
ASSERT_TRUE(NS_SUCCEEDED(rv) && read == 512);
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_NS_FAILED(rv);
// Fail at the end.
nsAutoCString consumed;
rv = NS_ConsumeStream(stream, UINT32_MAX, consumed);
ASSERT_NS_SUCCEEDED(rv);
rv = NS_CloneInputStream(stream, getter_AddRefs(clone));
ASSERT_NS_FAILED(rv);
}
|
