Move data reduction proxy logic out of chrome and android webview network delegate

net/base/layered_network_delegate_unittest.cc

Index: net/base/layered_network_delegate_unittest.cc
diff --git a/net/base/layered_network_delegate_unittest.cc b/net/base/layered_network_delegate_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..935f9cebc6a839bafde9d24eb45e87abdc864142
--- /dev/null
+++ b/net/base/layered_network_delegate_unittest.cc
@@ -0,0 +1,379 @@
+// Copyright 2014 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/base/layered_network_delegate.h"
+
+#include <map>
+
+#include "base/bind.h"
+#include "base/files/file_path.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "net/base/auth.h"
+#include "net/base/net_errors.h"
+#include "net/base/network_delegate_impl.h"
+#include "net/base/request_priority.h"
+#include "net/base/test_completion_callback.h"
+#include "net/http/http_response_headers.h"
+#include "net/proxy/proxy_config_service.h"
+#include "net/proxy/proxy_info.h"
+#include "net/proxy/proxy_service.h"
+#include "net/url_request/url_request.h"
+#include "net/url_request/url_request_test_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+namespace net {
+
+typedef std::map<const char*, int> CountersMap;
+
+class TestNetworkDelegateImpl : public NetworkDelegateImpl {
+ public:
+  TestNetworkDelegateImpl(CountersMap* layered_network_delegate_counters)
+     : layered_network_delegate_counters_(layered_network_delegate_counters) {
+  }
+
+  ~TestNetworkDelegateImpl() override {
+  }
+
+ private:
+  void IncrementAndCompareCounter(const char* counter_name) {
+    ++counters_[counter_name];
+    EXPECT_EQ((*layered_network_delegate_counters_)[counter_name],
+              counters_[counter_name]);
+  }
+
+  int OnBeforeURLRequest(URLRequest* request,
+                         const CompletionCallback& callback,
+                         GURL* new_url) override {
+    IncrementAndCompareCounter("on_before_url_request_count");
+    return OK;
+  }
+
+  void OnResolveProxy(const GURL& url,
+                      int load_flags,
+                      const ProxyService& proxy_service,
+                      ProxyInfo* result) override {
+    IncrementAndCompareCounter("on_resolve_proxy_count");
+  }
+
+  void OnProxyFallback(const ProxyServer& bad_proxy, int net_error) override {
+    IncrementAndCompareCounter("on_proxy_fallback_count");
+  }
+
+  int OnBeforeSendHeaders(URLRequest* request,
+                          const CompletionCallback& callback,
+                          HttpRequestHeaders* headers) override {
+    IncrementAndCompareCounter("on_before_send_headers_count");
+    return OK;
+  }
+
+  void OnBeforeSendProxyHeaders(URLRequest* request,
+                                const ProxyInfo& proxy_info,
+                                HttpRequestHeaders* headers) override {
+    IncrementAndCompareCounter("on_before_send_proxy_headers_count");
+  }
+
+  void OnSendHeaders(URLRequest* request,
+                     const HttpRequestHeaders& headers) override {
+    IncrementAndCompareCounter("on_send_headers_count");
+  }
+
+  int OnHeadersReceived(
+      URLRequest* request,
+      const CompletionCallback& callback,
+      const HttpResponseHeaders* original_response_headers,
+      scoped_refptr<HttpResponseHeaders>* override_response_headers,
+      GURL* allowed_unsafe_redirect_url) override {
+    IncrementAndCompareCounter("on_headers_received_count");
+    return OK;
+  }
+
+  void OnBeforeRedirect(URLRequest* request,
+                        const GURL& new_location) override {
+    IncrementAndCompareCounter("on_before_redirect_count");
+  }
+
+  void OnResponseStarted(URLRequest* request) override {
+    IncrementAndCompareCounter("on_response_started_count");
+  }
+
+  void OnRawBytesRead(const URLRequest& request, int bytes_read) override {
+    IncrementAndCompareCounter("on_raw_bytes_read_count");
+  }
+
+  void OnCompleted(URLRequest* request, bool started) override {
+    IncrementAndCompareCounter("on_completed_count");
+  }
+
+  void OnURLRequestDestroyed(URLRequest* request) override {
+    IncrementAndCompareCounter("on_url_request_destroyed_count");
+  }
+
+  void OnPACScriptError(int line_number, const base::string16& error) override {
+    IncrementAndCompareCounter("on_pac_script_error_count");
+  }
+
+  AuthRequiredResponse OnAuthRequired(URLRequest* request,
+                                      const AuthChallengeInfo& auth_info,
+                                      const AuthCallback& callback,
+                                      AuthCredentials* credentials) override {
+    IncrementAndCompareCounter("on_auth_required_count");
+    return NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION;
+  }
+
+  bool OnCanGetCookies(const URLRequest& request,
+                       const CookieList& cookie_list) override {
+    IncrementAndCompareCounter("on_can_get_cookies_count");
+    return false;
+  }
+
+  bool OnCanSetCookie(const URLRequest& request,
+                      const std::string& cookie_line,
+                      CookieOptions* options) override {
+    IncrementAndCompareCounter("on_can_set_cookie_count");
+    return false;
+  }
+
+  bool OnCanAccessFile(const URLRequest& request, const base::FilePath& path) {
+    IncrementAndCompareCounter("on_can_access_file_count");
+    return false;
+  }
+
+  bool OnCanThrottleRequest(const URLRequest& request) {
+    IncrementAndCompareCounter("on_can_throttle_request_count");
+    return false;
+  }
+
+  bool OnCanEnablePrivacyMode(const GURL& url,
+                              const GURL& first_party_for_cookies) {
+    IncrementAndCompareCounter("on_can_enable_privacy_mode_count");
+    return false;
+  }
+
+  bool OnCancelURLRequestWithPolicyViolatingReferrerHeader(
+      const URLRequest& request,
+      const GURL& target_url,
+      const GURL& referrer_url) {
+    IncrementAndCompareCounter(
+       "on_cancel_url_request_with_policy_violating_referrer_header_count");
+    return false;
+  }
+
+  mutable CountersMap counters_;
+  mutable CountersMap* layered_network_delegate_counters_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestNetworkDelegateImpl);
+};
+
+class TestLayeredNetworkDelegate : public LayeredNetworkDelegate {
+ public:
+  TestLayeredNetworkDelegate(scoped_ptr<NetworkDelegate> network_delegate,
+                             CountersMap* counters)
+      : LayeredNetworkDelegate(network_delegate.Pass()), context_(true),
+        counters_(counters) {
+    context_.Init();
+  }
+
+  ~TestLayeredNetworkDelegate() override {
+  }
+
+  void CallAndVerify() {
+    scoped_refptr<AuthChallengeInfo> auth_challenge(new AuthChallengeInfo());
+    scoped_ptr<URLRequest> request =
+        context_.CreateRequest(GURL(), IDLE, &delegate_, NULL);
+    scoped_ptr<HttpRequestHeaders> request_headers(new HttpRequestHeaders());
+    scoped_refptr<HttpResponseHeaders> response_headers(
+        new HttpResponseHeaders(""));
+    TestCompletionCallback completion_callback;
+    scoped_ptr<ProxyService> proxy_service(ProxyService::CreateDirect());
+
+    EXPECT_EQ(OK, OnBeforeURLRequest(request.get(),
+                                     completion_callback.callback(), NULL));
+    OnResolveProxy(GURL(), 0, *proxy_service, new ProxyInfo());
+    OnProxyFallback(ProxyServer(), 0);
+    EXPECT_EQ(OK, OnBeforeSendHeaders(NULL, completion_callback.callback(),
+                                      request_headers.get()));
+    OnBeforeSendProxyHeaders(NULL, ProxyInfo(), request_headers.get());
+    OnSendHeaders(NULL, *request_headers);
+    EXPECT_EQ(OK, OnHeadersReceived(NULL, completion_callback.callback(),
+                                    response_headers.get(), NULL, NULL));
+    OnResponseStarted(request.get());
+    OnRawBytesRead(*request, 0);
+    OnCompleted(request.get(), false);
+    OnURLRequestDestroyed(request.get());
+    OnPACScriptError(0, base::string16());
+    EXPECT_EQ(NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION,
+              OnAuthRequired(request.get(), *auth_challenge,
+                             AuthCallback(), NULL));
+    EXPECT_FALSE(OnCanGetCookies(*request, CookieList()));
+    EXPECT_FALSE(OnCanSetCookie(*request, std::string(), NULL));
+    EXPECT_FALSE(OnCanAccessFile(*request, base::FilePath()));
+    EXPECT_FALSE(OnCanThrottleRequest(*request));
+    EXPECT_FALSE(OnCanEnablePrivacyMode(GURL(), GURL()));
+    EXPECT_FALSE(OnCancelURLRequestWithPolicyViolatingReferrerHeader(
+        *request, GURL(), GURL()));
+  }
+
+ private:
+  void OnBeforeURLRequestInternal(URLRequest* request,
+                                  const CompletionCallback& callback,
+                                  GURL* new_url) override {
+    ++(*counters_)["on_before_url_request_count"];
+    EXPECT_EQ(1, (*counters_)["on_before_url_request_count"]);
+  }
+
+  void OnResolveProxyInternal(const GURL& url,
+                              int load_flags,
+                              const ProxyService& proxy_service,
+                              ProxyInfo* result) override {
+    ++(*counters_)["on_resolve_proxy_count"];
+    EXPECT_EQ(1, (*counters_)["on_resolve_proxy_count"]);
+  }
+
+  void OnProxyFallbackInternal(const ProxyServer& bad_proxy,
+                               int net_error) override {
+    ++(*counters_)["on_proxy_fallback_count"];
+    EXPECT_EQ(1, (*counters_)["on_proxy_fallback_count"]);
+  }
+
+  void OnBeforeSendHeadersInternal(URLRequest* request,
+                                   const CompletionCallback& callback,
+                                   HttpRequestHeaders* headers) override {
+    ++(*counters_)["on_before_send_headers_count"];
+    EXPECT_EQ(1, (*counters_)["on_before_send_headers_count"]);
+  }
+
+  void OnBeforeSendProxyHeadersInternal(URLRequest* request,
+                                        const ProxyInfo& proxy_info,
+                                        HttpRequestHeaders* headers) override {
+    ++(*counters_)["on_before_send_proxy_headers_count"];
+    EXPECT_EQ(1, (*counters_)["on_before_send_proxy_headers_count"]);
+  }
+
+  void OnSendHeadersInternal(URLRequest* request,
+                             const HttpRequestHeaders& headers) override {
+    ++(*counters_)["on_send_headers_count"];
+    EXPECT_EQ(1, (*counters_)["on_send_headers_count"]);
+  }
+
+  void OnHeadersReceivedInternal(
+      URLRequest* request,
+      const CompletionCallback& callback,
+      const HttpResponseHeaders* original_response_headers,
+      scoped_refptr<HttpResponseHeaders>* override_response_headers,
+      GURL* allowed_unsafe_redirect_url) override {
+    ++(*counters_)["on_headers_received_count"];
+    EXPECT_EQ(1, (*counters_)["on_headers_received_count"]);
+  }
+
+  void OnBeforeRedirectInternal(URLRequest* request,
+                                const GURL& new_location) override {
+    ++(*counters_)["on_before_redirect_count"];
+    EXPECT_EQ(1, (*counters_)["on_before_redirect_count"]);
+  }
+
+  void OnResponseStartedInternal(URLRequest* request) override {
+    ++(*counters_)["on_response_started_count"];
+    EXPECT_EQ(1, (*counters_)["on_response_started_count"]);
+  }
+
+  void OnRawBytesReadInternal(const URLRequest& request,
+                              int bytes_read) override {
+    ++(*counters_)["on_raw_bytes_read_count"];
+    EXPECT_EQ(1, (*counters_)["on_raw_bytes_read_count"]);
+  }
+
+  void OnCompletedInternal(URLRequest* request, bool started) override {
+    ++(*counters_)["on_completed_count"];
+    EXPECT_EQ(1, (*counters_)["on_completed_count"]);
+  }
+
+  void OnURLRequestDestroyedInternal(URLRequest* request) override {
+    ++(*counters_)["on_url_request_destroyed_count"];
+    EXPECT_EQ(1, (*counters_)["on_url_request_destroyed_count"]);
+  }
+
+  void OnPACScriptErrorInternal(int line_number,
+                                const base::string16& error) override {
+    ++(*counters_)["on_pac_script_error_count"];
+    EXPECT_EQ(1, (*counters_)["on_pac_script_error_count"]);
+  }
+
+  void OnAuthRequiredInternal(URLRequest* request,
+                              const AuthChallengeInfo& auth_info,
+                              const AuthCallback& callback,
+                              AuthCredentials* credentials) override {
+    ++(*counters_)["on_auth_required_count"];
+    EXPECT_EQ(1, (*counters_)["on_auth_required_count"]);
+  }
+
+  void OnCanGetCookiesInternal(const URLRequest& request,
+                               const CookieList& cookie_list) override {
+    ++(*counters_)["on_can_get_cookies_count"];
+    EXPECT_EQ(1, (*counters_)["on_can_get_cookies_count"]);
+  }
+
+  void OnCanSetCookieInternal(const URLRequest& request,
+                              const std::string& cookie_line,
+                              CookieOptions* options) override {
+    ++(*counters_)["on_can_set_cookie_count"];
+    EXPECT_EQ(1, (*counters_)["on_can_set_cookie_count"]);
+  }
+
+  void OnCanAccessFileInternal(const URLRequest& request,
+                               const base::FilePath& path) const override {
+    ++(*counters_)["on_can_access_file_count"];
+    EXPECT_EQ(1, (*counters_)["on_can_access_file_count"]);
+  }
+
+  void OnCanThrottleRequestInternal(const URLRequest& request) const override {
+    ++(*counters_)["on_can_throttle_request_count"];
+    EXPECT_EQ(1, (*counters_)["on_can_throttle_request_count"]);
+  }
+
+  void OnCanEnablePrivacyModeInternal(
+      const GURL& url, const GURL& first_party_for_cookies) const override {
+    ++(*counters_)["on_can_enable_privacy_mode_count"];
+    EXPECT_EQ(1, (*counters_)["on_can_enable_privacy_mode_count"]);
+  }
+
+  void OnCancelURLRequestWithPolicyViolatingReferrerHeaderInternal(
+      const URLRequest& request,
+      const GURL& target_url,
+      const GURL& referrer_url) const override {
+    ++(*counters_)["on_cancel_url_request_with_policy_"
+                   "violating_referrer_header_count"];
+    EXPECT_EQ(1, (*counters_)["on_cancel_url_request_with_policy_"
+                              "violating_referrer_header_count"]);
+  }
+
+  TestURLRequestContext context_;
+  TestDelegate delegate_;
+  mutable CountersMap* counters_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestLayeredNetworkDelegate);
+};
+
+class LayeredNetworkDelegateTest : public testing::Test {
+ public:
+  LayeredNetworkDelegateTest() {
+    scoped_ptr<TestNetworkDelegateImpl> test_network_delegate(
+        new TestNetworkDelegateImpl(&layered_network_delegate_counters));
+    test_network_delegate_ = test_network_delegate.get();
+    layered_network_delegate_ = scoped_ptr<TestLayeredNetworkDelegate>(
+        new TestLayeredNetworkDelegate(test_network_delegate.Pass(),
+                                       &layered_network_delegate_counters));
+  }
+
+  CountersMap layered_network_delegate_counters;
+  TestNetworkDelegateImpl* test_network_delegate_;
+  scoped_ptr<TestLayeredNetworkDelegate> layered_network_delegate_;
+};
+
+TEST_F(LayeredNetworkDelegateTest, VerifyLayeredNetworkDelegateInternal) {
+  layered_network_delegate_->CallAndVerify();
+}
+
+}  // namespace net