1 // Copyright 2015 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "net/filter/mock_source_stream.h"
6
7 #include <algorithm>
8 #include <utility>
9
10 #include "base/check_op.h"
11 #include "net/base/io_buffer.h"
12 #include "testing/gtest/include/gtest/gtest.h"
13
14 namespace net {
15
MockSourceStream()16 MockSourceStream::MockSourceStream() : SourceStream(SourceStream::TYPE_NONE) {}
17
~MockSourceStream()18 MockSourceStream::~MockSourceStream() {
19 DCHECK(!awaiting_completion_);
20 if (expect_all_input_consumed_) {
21 // All data should have been consumed.
22 EXPECT_TRUE(results_.empty());
23 }
24 }
25
Read(IOBuffer * dest_buffer,int buffer_size,CompletionOnceCallback callback)26 int MockSourceStream::Read(IOBuffer* dest_buffer,
27 int buffer_size,
28 CompletionOnceCallback callback) {
29 DCHECK(!awaiting_completion_);
30 DCHECK(!results_.empty());
31
32 if (results_.empty())
33 return ERR_UNEXPECTED;
34
35 QueuedResult r = results_.front();
36 DCHECK_GE(buffer_size, r.len);
37 if (r.mode == ASYNC) {
38 awaiting_completion_ = true;
39 dest_buffer_ = dest_buffer;
40 dest_buffer_size_ = buffer_size;
41 callback_ = std::move(callback);
42 return ERR_IO_PENDING;
43 }
44
45 results_.pop();
46 std::copy(r.data, r.data + r.len, dest_buffer->data());
47 return r.error == OK ? r.len : r.error;
48 }
49
Description() const50 std::string MockSourceStream::Description() const {
51 return "";
52 }
53
MayHaveMoreBytes() const54 bool MockSourceStream::MayHaveMoreBytes() const {
55 if (always_report_has_more_bytes_)
56 return true;
57 return !results_.empty();
58 }
59
QueuedResult(const char * data,int len,Error error,Mode mode)60 MockSourceStream::QueuedResult::QueuedResult(const char* data,
61 int len,
62 Error error,
63 Mode mode)
64 : data(data), len(len), error(error), mode(mode) {}
65
AddReadResult(const char * data,int len,Error error,Mode mode)66 void MockSourceStream::AddReadResult(const char* data,
67 int len,
68 Error error,
69 Mode mode) {
70 if (error != OK) {
71 // Doesn't make any sense to have both an error and data.
72 DCHECK_EQ(len, 0);
73 } else {
74 // The read result must be between 0 and 32k (inclusive) because the read
75 // buffer used in FilterSourceStream is 32k.
76 DCHECK_GE(32 * 1024, len);
77 DCHECK_LE(0, len);
78 }
79
80 if (len > 0 && read_one_byte_at_a_time_) {
81 for (int i = 0; i < len; ++i) {
82 QueuedResult result(data + i, 1, OK, mode);
83 results_.push(result);
84 }
85 return;
86 }
87
88 QueuedResult result(data, len, error, mode);
89 results_.push(result);
90 }
91
CompleteNextRead()92 void MockSourceStream::CompleteNextRead() {
93 DCHECK(awaiting_completion_);
94
95 awaiting_completion_ = false;
96 QueuedResult r = results_.front();
97 DCHECK_EQ(ASYNC, r.mode);
98 results_.pop();
99 DCHECK_GE(dest_buffer_size_, r.len);
100 std::copy(r.data, r.data + r.len, dest_buffer_->data());
101 dest_buffer_ = nullptr;
102 std::move(callback_).Run(r.error == OK ? r.len : r.error);
103 }
104
105 } // namespace net
106