Web restrictions component.

components/web_restrictions/browser/web_restrictions_resource_throttle_unittest.cc

+// Copyright 2016 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 "base/bind.h"
+#include "base/run_loop.h"
+#include "components/web_restrictions/browser/mock_web_restrictions_client.h"
+#include "components/web_restrictions/browser/web_restrictions_client.h"
+#include "components/web_restrictions/browser/web_restrictions_resource_throttle.h"
+#include "content/public/browser/resource_controller.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "net/base/net_errors.h"
+#include "net/url_request/redirect_info.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace web_restrictions {
+
+namespace {
+
+class TestResourceController : public content::ResourceController {
+ public:
+  TestResourceController(const base::Closure& quit_closure)
+      : resume_called_(false),
+        cancel_with_error_called_(false),
+        error_code_(0),
+        quit_closure_(quit_closure) {}
+
+  void Cancel() override {}
+  void CancelAndIgnore() override {}
+  void CancelWithError(int error_code) override {
+    cancel_with_error_called_ = true;
+    error_code_ = error_code;
+    quit_closure_.Run();
+  }
+  void Resume() override {
+    resume_called_ = true;
+    quit_closure_.Run();
+  }
+
+  bool CancelWithErrorCalled() const { return cancel_with_error_called_; }
+
+  int GetErrorCode() const { return error_code_; }
+
+  bool ResumeCalled() const { return resume_called_; }
+
+ private:
+  bool resume_called_;
+  bool cancel_with_error_called_;
+  int error_code_;
+  base::Closure quit_closure_;
+};
+
+}  // namespace
+
+class WebRestrictionsResourceThrottleTest : public testing::Test {
+ protected:
+  WebRestrictionsResourceThrottleTest()
+      : throttle_(&provider_, GURL("http://example.com"), true),
+        controller_(run_loop_.QuitClosure()) {
+    throttle_.set_controller_for_testing(&controller_);
+  }
+
+  void StartProvider() {
+    provider_.SetAuthority("Good");
+    bool defer;
+    throttle_.WillStartRequest(&defer);
+    run_loop_.Run();
+  }
+
+  // Mock the Java WebRestrictionsClient. The real version
+  // would need a content provider to do anything.
+  web_restrictions::MockWebRestrictionsClient mock_;
+  content::TestBrowserThreadBundle thread_bundle_;
+  WebRestrictionsClient provider_;
+  WebRestrictionsResourceThrottle throttle_;
+  base::RunLoop run_loop_;
+  TestResourceController controller_;
+};
+
+TEST_F(WebRestrictionsResourceThrottleTest, WillStartRequest_NoAuthority) {
+  WebRestrictionsResourceThrottle throttle(&provider_,
+                                           GURL("http://example.com"), true);
+  bool defer;
+  throttle.WillStartRequest(&defer);
+  // If there is no authority the request won't be deferred.
+  EXPECT_FALSE(defer);
+}
+
+TEST_F(WebRestrictionsResourceThrottleTest, WillStartRequest_DeferredAllow) {
+  // Test deferring with a resource provider, and that the correct results
+  // are received.
+  provider_.SetAuthority("Good");
+  bool defer;
+  throttle_.WillStartRequest(&defer);
+  EXPECT_TRUE(defer);
+  run_loop_.Run();
+  EXPECT_TRUE(controller_.ResumeCalled());
+  EXPECT_FALSE(controller_.CancelWithErrorCalled());
+}
+
+TEST_F(WebRestrictionsResourceThrottleTest, WillStartRequest_DeferredForbid) {
+  provider_.SetAuthority("Bad");
+  bool defer;
+  throttle_.WillStartRequest(&defer);
+  EXPECT_TRUE(defer);
+  run_loop_.Run();
+  EXPECT_FALSE(controller_.ResumeCalled());
+  EXPECT_TRUE(controller_.CancelWithErrorCalled());
+  EXPECT_EQ(net::ERR_BLOCKED_BY_ADMINISTRATOR, controller_.GetErrorCode());
+}
+
+TEST_F(WebRestrictionsResourceThrottleTest, WillStartRequest_Subresource) {
+  // Only the main frame should be deferred.
+  // Initialization of the controller is asynchronous, and this will only work
+  // correctly if the provider is initialized. Run a main frame through this
+  // first to ensure that everything is initialized.
+  StartProvider();
+  // Now the real test.
+  WebRestrictionsResourceThrottle throttle(
+      &provider_, GURL("http://example.com/sub"), false);
+  base::RunLoop test_run_loop;
+  TestResourceController test_controller(test_run_loop.QuitClosure());
+  throttle.set_controller_for_testing(&test_controller);
+  bool defer;
+  throttle.WillStartRequest(&defer);
+  EXPECT_FALSE(defer);
+}
+
+TEST_F(WebRestrictionsResourceThrottleTest, WillRedirectRequest_KnownUrl) {
+  // Set up a cached url.
+  StartProvider();
+  // Using the same URL should not be deferred
+  net::RedirectInfo redirect;
+  redirect.new_url = GURL("http://example.com");
+  bool defer;
+  throttle_.WillRedirectRequest(redirect, &defer);
+  EXPECT_FALSE(defer);
+}
+
+TEST_F(WebRestrictionsResourceThrottleTest, WillRedirectRequest_NewUrl) {
+  // Set up a cached url.
+  StartProvider();
+  // Using a different URL should be deferred
+  net::RedirectInfo redirect;
+  redirect.new_url = GURL("http://example.com/2");
+  base::RunLoop test_run_loop;
+  TestResourceController test_controller(test_run_loop.QuitClosure());
+  throttle_.set_controller_for_testing(&test_controller);
+  bool defer;
+  throttle_.WillRedirectRequest(redirect, &defer);
+  EXPECT_TRUE(defer);
+  // If we don't wait for the callback it may happen after the exit, which
+  // results in accesses the redirect_url after the stack frame is freed.
+  test_run_loop.Run();
+}
+
+}  // namespace web_restrictions