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      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 
     14 namespace net {
     15 
     16 class 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 
     32 TEST_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 
     44 TEST_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 
     57 TEST_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 
     69 TEST_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