[ON HOLD] Implement pull-based design for content decoding

net/url_request/url_request_job_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/url_request/url_request_job.h"
 
 #include <memory>
 
 #include "base/run_loop.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_transaction_test_util.h"
 #include "net/test/cert_test_util.h"
 #include "net/test/gtest_util.h"
 #include "net/test/test_data_directory.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using net::test::IsError;
 using net::test::IsOk;
 
 namespace net {
 
 namespace {
 
 // Data encoded in kBrotliHelloData.
-const char kBrotliDecodedHelloData[] = "hello, world!\n";
-// kBrotliDecodedHelloData encoded with brotli.
+const char kHelloData[] = "hello, world!\n";
+// kHelloData encoded with brotli.
 const char kBrotliHelloData[] =
     "\033\015\0\0\244\024\102\152\020\111\152\072\235\126\034";
 
 // This is a header that signals the end of the data.
 const char kGzipData[] = "\x1f\x08b\x08\0\0\0\0\0\0\3\3\0\0\0\0\0\0\0\0";
 const char kGzipDataWithName[] =
     "\x1f\x08b\x08\x08\0\0\0\0\0\0name\0\3\0\0\0\0\0\0\0\0";
-// Gzip data that contains the word hello with a newline character.
+// kHelloData encoded with gzip.
 const char kGzipHelloData[] =
     "\x1f\x8b\x08\x08\x46\x7d\x4e\x56\x00\x03\x67\x7a\x69\x70\x2e\x74\x78\x74"
     "\x00\xcb\x48\xcd\xc9\xc9\xe7\x02\x00\x20\x30\x3a\x36\x06\x00\x00\x00";
 
 void GZipServer(const HttpRequestInfo* request,
                 std::string* response_status,
                 std::string* response_headers,
                 std::string* response_data) {
   response_data->assign(kGzipData, sizeof(kGzipData));
 }
 
 void GZipHelloServer(const HttpRequestInfo* request,
                      std::string* response_status,
                      std::string* response_headers,
                      std::string* response_data) {
-  response_data->assign(kGzipHelloData, sizeof(kGzipHelloData));
+  response_data->assign(kGzipHelloData, sizeof(kGzipHelloData) - 1);
 }
 
 void BigGZipServer(const HttpRequestInfo* request,
                    std::string* response_status,
                    std::string* response_headers,
                    std::string* response_data) {
   response_data->assign(kGzipDataWithName, sizeof(kGzipDataWithName));
   response_data->insert(10, 64 * 1024, 'a');
 }
 
@@ skipping 24 matching lines @@
     transaction->cert =
         net::ImportCertFromFile(net::GetTestCertsDirectory(), "ok_cert.pem");
   } else {
     transaction->cert = nullptr;
   }
   transaction->cert_status = 0;
   transaction->ssl_connection_status = 0;
   transaction->return_code = OK;
 }
 
+const MockTransaction kNoFilter_Transaction = {
+    "http://www.google.com/gzyp", "GET", base::Time(), "", LOAD_NORMAL,
+    "HTTP/1.1 200 OK",
+    "Cache-Control: max-age=10000\n"
+    "Content-Length: 30\n",  // Intentionally wrong.
+    base::Time(),
+    "hello", TEST_MODE_NORMAL, nullptr, nullptr, 0, 0, OK,
+};
+
 const MockTransaction kGZip_Transaction = {
     "http://www.google.com/gzyp", "GET", base::Time(), "", LOAD_NORMAL,
     "HTTP/1.1 200 OK",
     "Cache-Control: max-age=10000\n"
     "Content-Encoding: gzip\n"
     "Content-Length: 30\n",  // Intentionally wrong.
     base::Time(),
     "", TEST_MODE_NORMAL, &GZipServer, nullptr, nullptr, 0, 0, OK,
 };
 
@@ skipping 48 matching lines @@
     "http://www.google.com/brotli", "GET", base::Time(), "", LOAD_NORMAL,
     "HTTP/1.1 200 OK",
     "Cache-Control: max-age=10000\n"
     "Content-Encoding: br\n",
     base::Time(), "", TEST_MODE_SLOW_READ, &BrotliHelloServer, nullptr, nullptr,
     0, 0, OK,
 };
 
 }  // namespace
 
+TEST(URLRequestJob, TransactionNoFilter) {
+  MockNetworkLayer network_layer;
+  TestURLRequestContext context;
+  context.set_http_transaction_factory(&network_layer);
+
+  TestDelegate d;
+  std::unique_ptr<URLRequest> req(context.CreateRequest(
+      GURL(kNoFilter_Transaction.url), DEFAULT_PRIORITY, &d));
+  AddMockTransaction(&kNoFilter_Transaction);
+
+  req->set_method("GET");
+  req->Start();
+
+  base::RunLoop().Run();
+
+  EXPECT_FALSE(d.request_failed());
+  EXPECT_EQ(200, req->GetResponseCode());
+  EXPECT_EQ("hello", d.data_received());
+  EXPECT_TRUE(network_layer.done_reading_called());
+
+  RemoveMockTransaction(&kNoFilter_Transaction);
+}
+
 TEST(URLRequestJob, TransactionNotifiedWhenDone) {
   MockNetworkLayer network_layer;
   TestURLRequestContext context;
   context.set_http_transaction_factory(&network_layer);
 
   TestDelegate d;
   std::unique_ptr<URLRequest> req(
       context.CreateRequest(GURL(kGZip_Transaction.url), DEFAULT_PRIORITY, &d));
   AddMockTransaction(&kGZip_Transaction);
 
   req->set_method("GET");
   req->Start();
 
   base::RunLoop().Run();
 
+  EXPECT_FALSE(d.request_failed());
+  EXPECT_EQ(200, req->GetResponseCode());
+  EXPECT_EQ("", d.data_received());
   EXPECT_TRUE(network_layer.done_reading_called());
 
   RemoveMockTransaction(&kGZip_Transaction);
 }
 
 TEST(URLRequestJob, SyncTransactionNotifiedWhenDone) {
   MockNetworkLayer network_layer;
   TestURLRequestContext context;
   context.set_http_transaction_factory(&network_layer);
 
   TestDelegate d;
   std::unique_ptr<URLRequest> req(
       context.CreateRequest(GURL(kGZip_Transaction.url), DEFAULT_PRIORITY, &d));
   MockTransaction transaction(kGZip_Transaction);
   transaction.test_mode = TEST_MODE_SYNC_ALL;
   AddMockTransaction(&transaction);
 
   req->set_method("GET");
   req->Start();
 
   base::RunLoop().Run();
 
+  EXPECT_FALSE(d.request_failed());
+  EXPECT_EQ(200, req->GetResponseCode());
+  EXPECT_EQ("", d.data_received());
   EXPECT_TRUE(network_layer.done_reading_called());
 
   RemoveMockTransaction(&transaction);
 }
 
 // Tests processing a large gzip header one byte at a time.
 TEST(URLRequestJob, SyncSlowTransaction) {
   MockNetworkLayer network_layer;
   TestURLRequestContext context;
   context.set_http_transaction_factory(&network_layer);
 
   TestDelegate d;
   std::unique_ptr<URLRequest> req(
       context.CreateRequest(GURL(kGZip_Transaction.url), DEFAULT_PRIORITY, &d));
   MockTransaction transaction(kGZip_Transaction);
   transaction.test_mode = TEST_MODE_SYNC_ALL | TEST_MODE_SLOW_READ;
   transaction.handler = &BigGZipServer;
   AddMockTransaction(&transaction);
 
   req->set_method("GET");
   req->Start();
 
   base::RunLoop().Run();
 
+  EXPECT_FALSE(d.request_failed());
+  EXPECT_EQ(200, req->GetResponseCode());
+  EXPECT_EQ("", d.data_received());
   EXPECT_TRUE(network_layer.done_reading_called());
 
   RemoveMockTransaction(&transaction);
 }
 
 TEST(URLRequestJob, RedirectTransactionNotifiedWhenDone) {
   MockNetworkLayer network_layer;
   TestURLRequestContext context;
   context.set_http_transaction_factory(&network_layer);
 
@@ skipping 316 matching lines @@
       GURL(kBrotli_Slow_Transaction.url), DEFAULT_PRIORITY, &d));
   AddMockTransaction(&kBrotli_Slow_Transaction);
 
   req->set_method("GET");
   req->Start();
 
   base::RunLoop().RunUntilIdle();
 
   EXPECT_FALSE(d.request_failed());
   EXPECT_EQ(200, req->GetResponseCode());
-  EXPECT_EQ(kBrotliDecodedHelloData, d.data_received());
+  EXPECT_EQ(kHelloData, d.data_received());
   EXPECT_TRUE(network_layer.done_reading_called());
 
   RemoveMockTransaction(&kBrotli_Slow_Transaction);
 }
 
 }  // namespace net