1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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/base/upload_bytes_element_reader.h"
6
7#include "base/basictypes.h"
8#include "base/memory/scoped_ptr.h"
9#include "net/base/io_buffer.h"
10#include "net/base/net_errors.h"
11#include "testing/gtest/include/gtest/gtest.h"
12#include "testing/platform_test.h"
13
14namespace net {
15
16class UploadBytesElementReaderTest : public PlatformTest {
17 protected:
18  virtual void SetUp() OVERRIDE {
19    const char kData[] = "123abc";
20    bytes_.assign(kData, kData + arraysize(kData));
21    reader_.reset(new UploadBytesElementReader(&bytes_[0], bytes_.size()));
22    ASSERT_EQ(OK, reader_->Init(CompletionCallback()));
23    EXPECT_EQ(bytes_.size(), reader_->GetContentLength());
24    EXPECT_EQ(bytes_.size(), reader_->BytesRemaining());
25    EXPECT_TRUE(reader_->IsInMemory());
26  }
27
28  std::vector<char> bytes_;
29  scoped_ptr<UploadElementReader> reader_;
30};
31
32TEST_F(UploadBytesElementReaderTest, ReadPartially) {
33  const size_t kHalfSize = bytes_.size() / 2;
34  std::vector<char> buf(kHalfSize);
35  scoped_refptr<IOBuffer> wrapped_buffer = new WrappedIOBuffer(&buf[0]);
36  EXPECT_EQ(
37      static_cast<int>(buf.size()),
38      reader_->Read(wrapped_buffer.get(), buf.size(), CompletionCallback()));
39  EXPECT_EQ(bytes_.size() - buf.size(), reader_->BytesRemaining());
40  bytes_.resize(kHalfSize);  // Resize to compare.
41  EXPECT_EQ(bytes_, buf);
42}
43
44TEST_F(UploadBytesElementReaderTest, ReadAll) {
45  std::vector<char> buf(bytes_.size());
46  scoped_refptr<IOBuffer> wrapped_buffer = new WrappedIOBuffer(&buf[0]);
47  EXPECT_EQ(
48      static_cast<int>(buf.size()),
49      reader_->Read(wrapped_buffer.get(), buf.size(), CompletionCallback()));
50  EXPECT_EQ(0U, reader_->BytesRemaining());
51  EXPECT_EQ(bytes_, buf);
52  // Try to read again.
53  EXPECT_EQ(
54      0, reader_->Read(wrapped_buffer.get(), buf.size(), CompletionCallback()));
55}
56
57TEST_F(UploadBytesElementReaderTest, ReadTooMuch) {
58  const size_t kTooLargeSize = bytes_.size() * 2;
59  std::vector<char> buf(kTooLargeSize);
60  scoped_refptr<IOBuffer> wrapped_buffer = new WrappedIOBuffer(&buf[0]);
61  EXPECT_EQ(
62      static_cast<int>(bytes_.size()),
63      reader_->Read(wrapped_buffer.get(), buf.size(), CompletionCallback()));
64  EXPECT_EQ(0U, reader_->BytesRemaining());
65  buf.resize(bytes_.size());  // Resize to compare.
66  EXPECT_EQ(bytes_, buf);
67}
68
69TEST_F(UploadBytesElementReaderTest, MultipleInit) {
70  std::vector<char> buf(bytes_.size());
71  scoped_refptr<IOBuffer> wrapped_buffer = new WrappedIOBuffer(&buf[0]);
72
73  // Read all.
74  EXPECT_EQ(
75      static_cast<int>(buf.size()),
76      reader_->Read(wrapped_buffer.get(), buf.size(), CompletionCallback()));
77  EXPECT_EQ(0U, reader_->BytesRemaining());
78  EXPECT_EQ(bytes_, buf);
79
80  // Call Init() again to reset the state.
81  ASSERT_EQ(OK, reader_->Init(CompletionCallback()));
82  EXPECT_EQ(bytes_.size(), reader_->GetContentLength());
83  EXPECT_EQ(bytes_.size(), reader_->BytesRemaining());
84
85  // Read again.
86  EXPECT_EQ(
87      static_cast<int>(buf.size()),
88      reader_->Read(wrapped_buffer.get(), buf.size(), CompletionCallback()));
89  EXPECT_EQ(0U, reader_->BytesRemaining());
90  EXPECT_EQ(bytes_, buf);
91}
92
93}  // namespace net
94