Allow dynamic updating of authentication policies

chrome/browser/io_thread_unittest.cc

Index: chrome/browser/io_thread_unittest.cc
diff --git a/chrome/browser/io_thread_unittest.cc b/chrome/browser/io_thread_unittest.cc
index 26bf87214a5f65b9053b17b925c4298f9ed04a1d..361143c6fcf9c5dd9829846e18e82eb25ced1cfc 100644
--- a/chrome/browser/io_thread_unittest.cc
+++ b/chrome/browser/io_thread_unittest.cc
@@ -4,20 +4,41 @@
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
+#include "base/prefs/pref_registry_simple.h"
+#include "base/prefs/pref_service.h"
+#include "base/prefs/testing_pref_service.h"
+#include "base/run_loop.h"
 #include "base/test/mock_entropy_provider.h"
+#include "chrome/browser/extensions/event_router_forwarder.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/common/chrome_switches.h"
+#include "chrome/common/pref_names.h"
 #include "components/data_reduction_proxy/core/common/data_reduction_proxy_params.h"
+#include "components/policy/core/common/mock_policy_service.h"
+#include "components/proxy_config/pref_proxy_config_tracker_impl.h"
+#include "components/proxy_config/proxy_config_pref_names.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "net/base/net_pref_names.h"
+#include "net/http/http_auth_preferences.h"
+#include "net/http/http_auth_scheme.h"
 #include "net/http/http_network_session.h"
 #include "net/http/http_server_properties_impl.h"
 #include "net/quic/quic_protocol.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+#if defined(OS_CHROMEOS)
+#include "chromeos/dbus/dbus_thread_manager.h"
+#include "chromeos/network/network_handler.h"
+#endif
+
 namespace test {
 
 using ::testing::ElementsAre;
+using ::testing::ReturnRef;
 
+// Class used for accessing IOThread methods (friend of IOThread).
 class IOThreadPeer {
  public:
   static void ConfigureQuicGlobals(
@@ -50,6 +71,14 @@ class IOThreadPeer {
       net::HttpNetworkSession::Params* params) {
     IOThread::InitializeNetworkSessionParamsFromGlobals(globals, params);
   }
+
+  static void InitIOThread(IOThread* io_thread) { io_thread->Init(); }
+
+  static void CleanUpIOThread(IOThread* io_thread) { io_thread->CleanUp(); }
+
+  static net::HttpAuthPreferences* GetAuthPreferences(IOThread* io_thread) {
+    return &(io_thread->http_auth_preferences_);
+  }
 };
 
 class IOThreadTest : public testing::Test {
@@ -523,4 +552,92 @@ TEST_F(IOThreadTest, QuicDisallowedByPolicy) {
   EXPECT_FALSE(params.enable_quic);
 }
 
+class IOThreadTestWithIOThreadObject : public testing::Test {
+ public:
+  // These functions need to be public, since it is difficult to bind to
+  // protected functions in a test (the code would need to explicitly contain
+  // the name of the actual test class).
+  void CheckCnameLookup(bool expected) {
+    auto http_auth_preferences =
+        IOThreadPeer::GetAuthPreferences(io_thread_.get());
+    ASSERT_NE(nullptr, http_auth_preferences);
+    EXPECT_EQ(expected,
+              http_auth_preferences->negotiate_disable_cname_lookup());
+  }
+
+ protected:
+  IOThreadTestWithIOThreadObject()
+      : thread_bundle_(content::TestBrowserThreadBundle::REAL_IO_THREAD) {
+#if defined(ENABLE_EXTENSIONS)
+    event_router_forwarder_ = new extensions::EventRouterForwarder;
+#endif
+    PrefRegistrySimple* pref_registry = pref_service_.registry();
+    IOThread::RegisterPrefs(pref_registry);
+    PrefProxyConfigTrackerImpl::RegisterPrefs(pref_registry);
+    ssl_config::SSLConfigServiceManager::RegisterPrefs(pref_registry);
+
+    // Set up default function behaviour.
+    EXPECT_CALL(policy_service_,
+                GetPolicies(policy::PolicyNamespace(
+                    policy::POLICY_DOMAIN_CHROME, std::string())))
+        .WillRepeatedly(ReturnRef(policy_map_));
+
+#if defined(OS_CHROMEOS)
+    // Needed by IOThread constructor.
+    chromeos::DBusThreadManager::Initialize();
+    chromeos::NetworkHandler::Initialize();
+#endif
+    io_thread_.reset(new IOThread(&pref_service_, &policy_service_, nullptr,
+                                  event_router_forwarder_.get()));
+    // Init must be run on the IO thread.
+    RunOnIOThreadBlocking(
+        base::Bind(&IOThreadPeer::InitIOThread, io_thread_.get()));
+  }
+
+  ~IOThreadTestWithIOThreadObject() override {
+    RunOnIOThreadBlocking(
+        base::Bind(&IOThreadPeer::CleanUpIOThread, io_thread_.get()));
+#if defined(OS_CHROMEOS)
+    chromeos::NetworkHandler::Shutdown();
+    chromeos::DBusThreadManager::Shutdown();
+#endif
+  }
+  TestingPrefServiceSimple* pref_service() { return &pref_service_; }
+
+  IOThread* io_thread() { return io_thread_.get(); }
+
+  void RunOnIOThreadBlocking(base::Closure task) {
+    base::RunLoop run_loop;
+    content::BrowserThread::PostTaskAndReply(
+        content::BrowserThread::IO, FROM_HERE, task, run_loop.QuitClosure());
+    run_loop.Run();
+  }
+
+ private:
+  content::TestBrowserThreadBundle thread_bundle_;
+  TestingPrefServiceSimple pref_service_;
+  scoped_refptr<extensions::EventRouterForwarder> event_router_forwarder_;
+  policy::PolicyMap policy_map_;
+  policy::MockPolicyService policy_service_;
+  scoped_ptr<IOThread> io_thread_;
+  IOThread::Globals globals_;
+};
+
+TEST_F(IOThreadTestWithIOThreadObject, HttpAuthPreferences) {
+  // This test uses the kDisableAuthNegotiateCnameLookup to check that
+  // the HttpAuthPreferences are correctly initialized and running on the
+  // IO thread. The other preferences are tested by the HttpAuthPreferences
+  // unit tests.
+  pref_service()->SetBoolean(net::prefs::kDisableAuthNegotiateCnameLookup,
+                             false);
+  RunOnIOThreadBlocking(
+      base::Bind(&IOThreadTestWithIOThreadObject::CheckCnameLookup,
+                 base::Unretained(this), false));
+  pref_service()->SetBoolean(net::prefs::kDisableAuthNegotiateCnameLookup,
+                             true);
+  RunOnIOThreadBlocking(
+      base::Bind(&IOThreadTestWithIOThreadObject::CheckCnameLookup,
+                 base::Unretained(this), true));
+}
+
 }  // namespace test