Add HTTPMultipartBuilder and its test.

util/net/http_body_test.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #include "util/net/http_body.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "gtest/gtest.h"
+#include "util/net/http_body_test_util.h"
 
 namespace crashpad {
 namespace test {
 namespace {
 
 void ExpectBufferSet(const uint8_t* actual,
                      uint8_t expected_byte,
                      size_t num_expected_bytes) {
   for (size_t i = 0; i < num_expected_bytes; ++i) {
     EXPECT_EQ(expected_byte, actual[i]) << i;
@@ skipping 56 matching lines @@
     EXPECT_EQ('b', buf[1]);
     EXPECT_EQ(1, stream.GetBytesBuffer(buf, sizeof(buf)));
     EXPECT_EQ('c', buf[0]);
     EXPECT_EQ('b', buf[1]);  // Unmodified from last read.
     EXPECT_EQ(0, stream.GetBytesBuffer(buf, sizeof(buf)));
     EXPECT_EQ('c', buf[0]);
     EXPECT_EQ('b', buf[1]);
   }
 }
 
-std::string ReadStreamToString(HTTPBodyStream* stream, size_t buffer_size) {
-  scoped_ptr<uint8_t[]> buf(new uint8_t[buffer_size]);
-  std::string result;
-
-  ssize_t bytes_read;
-  while ((bytes_read = stream->GetBytesBuffer(buf.get(), buffer_size)) != 0) {
-    if (bytes_read < 0) {
-      ADD_FAILURE() << "Failed to read from stream: " << bytes_read;
-      return std::string();
-    }
-
-    result.append(reinterpret_cast<char*>(buf.get()), bytes_read);
-  }
-
-  return result;
-}
-
 TEST(FileHTTPBodyStream, ReadASCIIFile) {
   // TODO(rsesek): Use a more robust mechanism to locate testdata
   // <https://code.google.com/p/crashpad/issues/detail?id=4>.
   base::FilePath path = base::FilePath("util/net/testdata/ascii_http_body.txt");
   FileHTTPBodyStream stream(path);
   std::string contents = ReadStreamToString(&stream, 32);
   EXPECT_EQ("This is a test.\n", contents);
 
   // Make sure that the file is not read again after it has been read to
   // completion.
@@ skipping 106 matching lines @@
   EXPECT_EQ(expected_string, actual_string);
 }
 
 INSTANTIATE_TEST_CASE_P(VariableBufferSize,
                         CompositeHTTPBodyStreamBufferSize,
                         testing::Values(1, 2, 9, 16, 31, 128));
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad