Add a NavigationThrottle to the public content/ interface

components/navigation_interception/intercept_navigation_throttle_unittest.cc

Index: components/navigation_interception/intercept_navigation_throttle_unittest.cc
diff --git a/components/navigation_interception/intercept_navigation_throttle_unittest.cc b/components/navigation_interception/intercept_navigation_throttle_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..15e05efaf0473a80b1a2f26901181eea33793908
--- /dev/null
+++ b/components/navigation_interception/intercept_navigation_throttle_unittest.cc
@@ -0,0 +1,165 @@
+// Copyright 2015 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/bind_helpers.h"
+#include "base/memory/scoped_ptr.h"
+#include "components/navigation_interception/intercept_navigation_throttle.h"
+#include "components/navigation_interception/navigation_params.h"
+#include "content/public/browser/navigation_handle.h"
+#include "content/public/browser/navigation_throttle.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/test/test_renderer_host.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using content::NavigationThrottle;
+using testing::_;
+using testing::Eq;
+using testing::Ne;
+using testing::Property;
+using testing::Return;
+
+namespace navigation_interception {
+
+namespace {
+
+const char kTestUrl[] = "http://www.test.com/";
+
+// The MS C++ compiler complains about not being able to resolve which url()
+// method (const or non-const) to use if we use the Property matcher to check
+// the return value of the NavigationParams::url() method.
+// It is possible to suppress the error by specifying the types directly but
+// that results in very ugly syntax, which is why these custom matchers are
+// used instead.
+MATCHER(NavigationParamsUrlIsTest, "") {
+  return arg.url() == GURL(kTestUrl);
+}
+
+}  // namespace
+
+// MockInterceptCallbackReceiver ----------------------------------------------
+
+class MockInterceptCallbackReceiver {
+ public:
+  MOCK_METHOD2(ShouldIgnoreNavigation,
+               bool(content::WebContents* source,
+                    const NavigationParams& navigation_params));
+};
+
+// InterceptNavigationThrottleTest ------------------------------------
+
+class InterceptNavigationThrottleTest
+    : public content::RenderViewHostTestHarness {
+ public:
+  InterceptNavigationThrottleTest()
+      : mock_callback_receiver_(new MockInterceptCallbackReceiver()) {}
+
+  NavigationThrottle::ThrottleCheckResult
+  SimulateWillStart(const GURL& url, const GURL& sanitized_url, bool is_post) {
+    scoped_ptr<content::NavigationHandle> test_handle =
+        content::NavigationHandle::CreateNavigationHandleForTesting(
+            url, true, web_contents());
+    test_handle->RegisterThrottleForTesting(
+        scoped_ptr<NavigationThrottle>(
+            new InterceptNavigationThrottle(
+                test_handle.get(),
+                base::Bind(
+                    &MockInterceptCallbackReceiver::ShouldIgnoreNavigation,
+                    base::Unretained(mock_callback_receiver_.get()))))
+            .Pass());
+    return test_handle->CallWillStartRequestForTesting(
+        is_post, content::Referrer(), false, ui::PAGE_TRANSITION_LINK, false);
+  }
+
+  NavigationThrottle::ThrottleCheckResult Simulate302() {
+    scoped_ptr<content::NavigationHandle> test_handle =
+        content::NavigationHandle::CreateNavigationHandleForTesting(
+            GURL(kTestUrl), true, web_contents());
+    test_handle->RegisterThrottleForTesting(
+        scoped_ptr<NavigationThrottle>(
+            new InterceptNavigationThrottle(
+                test_handle.get(),
+                base::Bind(
+                    &MockInterceptCallbackReceiver::ShouldIgnoreNavigation,
+                    base::Unretained(mock_callback_receiver_.get()))))
+            .Pass());
+    test_handle->CallWillStartRequestForTesting(
+        true, content::Referrer(), false, ui::PAGE_TRANSITION_LINK, false);
+    return test_handle->CallWillRedirectRequestForTesting(GURL(kTestUrl), false,
+                                                          GURL(), false);
+  }
+
+  scoped_ptr<MockInterceptCallbackReceiver> mock_callback_receiver_;
+};
+
+TEST_F(InterceptNavigationThrottleTest,
+       RequestDeferredAndResumedIfNavigationNotIgnored) {
+  ON_CALL(*mock_callback_receiver_, ShouldIgnoreNavigation(_, _))
+      .WillByDefault(Return(false));
+  EXPECT_CALL(
+      *mock_callback_receiver_,
+      ShouldIgnoreNavigation(web_contents(), NavigationParamsUrlIsTest()));
+  NavigationThrottle::ThrottleCheckResult result =
+      SimulateWillStart(GURL(kTestUrl), GURL(kTestUrl), false);
+
+  EXPECT_EQ(NavigationThrottle::PROCEED, result);
+}
+
+TEST_F(InterceptNavigationThrottleTest,
+       RequestDeferredAndCancelledIfNavigationIgnored) {
+  ON_CALL(*mock_callback_receiver_, ShouldIgnoreNavigation(_, _))
+      .WillByDefault(Return(true));
+  EXPECT_CALL(
+      *mock_callback_receiver_,
+      ShouldIgnoreNavigation(web_contents(), NavigationParamsUrlIsTest()));
+  NavigationThrottle::ThrottleCheckResult result =
+      SimulateWillStart(GURL(kTestUrl), GURL(kTestUrl), false);
+
+  EXPECT_EQ(NavigationThrottle::CANCEL_AND_IGNORE, result);
+}
+
+TEST_F(InterceptNavigationThrottleTest, CallbackIsPostFalseForGet) {
+  EXPECT_CALL(*mock_callback_receiver_,
+              ShouldIgnoreNavigation(
+                  _, AllOf(NavigationParamsUrlIsTest(),
+                           Property(&NavigationParams::is_post, Eq(false)))))
+      .WillOnce(Return(false));
+
+  NavigationThrottle::ThrottleCheckResult result =
+      SimulateWillStart(GURL(kTestUrl), GURL(kTestUrl), false);
+
+  EXPECT_EQ(NavigationThrottle::PROCEED, result);
+}
+
+TEST_F(InterceptNavigationThrottleTest, CallbackIsPostTrueForPost) {
+  EXPECT_CALL(*mock_callback_receiver_,
+              ShouldIgnoreNavigation(
+                  _, AllOf(NavigationParamsUrlIsTest(),
+                           Property(&NavigationParams::is_post, Eq(true)))))
+      .WillOnce(Return(false));
+  NavigationThrottle::ThrottleCheckResult result =
+      SimulateWillStart(GURL(kTestUrl), GURL(kTestUrl), true);
+
+  EXPECT_EQ(NavigationThrottle::PROCEED, result);
+}
+
+TEST_F(InterceptNavigationThrottleTest,
+       CallbackIsPostFalseForPostConvertedToGetBy302) {
+  EXPECT_CALL(*mock_callback_receiver_,
+              ShouldIgnoreNavigation(
+                  _, AllOf(NavigationParamsUrlIsTest(),
+                           Property(&NavigationParams::is_post, Eq(true)))))
+      .WillOnce(Return(false));
+  EXPECT_CALL(*mock_callback_receiver_,
+              ShouldIgnoreNavigation(
+                  _, AllOf(NavigationParamsUrlIsTest(),
+                           Property(&NavigationParams::is_post, Eq(false)))))
+      .WillOnce(Return(false));
+  NavigationThrottle::ThrottleCheckResult result = Simulate302();
+
+  EXPECT_EQ(NavigationThrottle::PROCEED, result);
+}
+
+}  // namespace navigation_interception