Web restrictions component.

components/web_restrictions/browser/web_restrictions_client_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/web_restrictions_client.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+/*
+ * Tests of C++ WebRestrictionsClient. Note that these tests use a dummy
+ * version of the Java WebRestrictionsClient which gives predefined
+ * responses based on the authority and the URL. They will not work if
+ * built with the real version of the Java WebRestrictionsClient.

[Bernhard Bauer, 2016/02/19 13:46:26]

This seems very fragile. How do you know that the real WebRestrictionsClient
isn't going to end up on the class path?

Would it work instead to add a hook to WebRestrictionsClient.create() that
returns a mock subclass?

[aberent, 2016/02/19 19:40:09]

Done.

+ */
+
+using web_restrictions::WebRestrictionsClient;
+
+namespace {
+
+bool callback_called;

[Bernhard Bauer, 2016/02/19 13:46:26]

This one isn't really necessary -- the run loop will run until its quit closure
is called, so if you are after a Run() call, you know that has happened.

[aberent, 2016/02/19 19:40:08]

Done.

+bool returned_result;

[Bernhard Bauer, 2016/02/19 13:46:26]

|g_returned_result|?

[aberent, 2016/02/19 19:40:08]

Done.

+
+void ResultCallback(base::Closure quit_closure, bool result) {

[Bernhard Bauer, 2016/02/19 13:46:26]

Pass the closure by const reference.

[aberent, 2016/02/19 19:40:08]

Done.

+  callback_called = true;
+  returned_result = result;
+  quit_closure.Run();
+}
+}  // namespace

[Bernhard Bauer, 2016/02/19 13:46:26]

Nit: Empty line before this one.

[aberent, 2016/02/19 19:40:08]

Done.

+
+TEST(WebRestrictionsClientTest, TestShouldProceed) {
+  content::TestBrowserThreadBundle thread_bundle;
+  WebRestrictionsClient client;
+  client.SetAuthority("Good");
+  // First call should go to Web Restrictions Content Provider, and return a
+  // delayed result.
+  callback_called = false;
+  returned_result = false;
+  base::RunLoop run_loop;
+  EXPECT_EQ(web_restrictions::PENDING,
+            client.ShouldProceed(
+                true, GURL("http://example.com"),
+                base::Bind(&ResultCallback, run_loop.QuitClosure())));
+  run_loop.Run();
+  EXPECT_TRUE(callback_called);
+  EXPECT_TRUE(returned_result);
+  // A repeated call should go to the cache and return a result immediately.
+  EXPECT_EQ(web_restrictions::ALLOW,
+            client.ShouldProceed(
+                true, GURL("http://example.com"),
+                base::Bind(&ResultCallback, run_loop.QuitClosure())));
+  // However a different url should miss the cache
+  callback_called = false;
+  returned_result = false;
+  base::RunLoop run_loop2;
+  EXPECT_EQ(web_restrictions::PENDING,
+            client.ShouldProceed(
+                true, GURL("http://example.com/2"),
+                base::Bind(&ResultCallback, run_loop2.QuitClosure())));
+  run_loop2.Run();
+  EXPECT_TRUE(callback_called);
+  EXPECT_TRUE(returned_result);
+  // Switching the authority should clear the cache.
+  client.SetAuthority("Good2");
+  callback_called = false;
+  returned_result = false;
+  base::RunLoop run_loop3;
+  EXPECT_EQ(web_restrictions::PENDING,
+            client.ShouldProceed(
+                true, GURL("http://example.com/2"),
+                base::Bind(&ResultCallback, run_loop3.QuitClosure())));
+  run_loop3.Run();
+  EXPECT_TRUE(callback_called);
+  EXPECT_TRUE(returned_result);
+  // Try getting a bad result
+  client.SetAuthority("Bad");
+  callback_called = false;
+  returned_result = true;
+  base::RunLoop run_loop4;
+  EXPECT_EQ(web_restrictions::PENDING,
+            client.ShouldProceed(
+                true, GURL("http://example.com/2"),
+                base::Bind(&ResultCallback, run_loop4.QuitClosure())));
+  run_loop4.Run();
+  EXPECT_TRUE(callback_called);
+  EXPECT_FALSE(returned_result);
+  std::string error_html;
+  EXPECT_TRUE(client.GetErrorHtml(GURL("http://example.com/2"), &error_html));
+  EXPECT_EQ("http://example.com/2", error_html);
+}
+
+TEST(WebRestrictionsClientTest, TestRequestPermission) {
+  content::TestBrowserThreadBundle thread_bundle;
+  WebRestrictionsClient client;
+  client.SetAuthority("Good");
+  base::RunLoop run_loop;
+  callback_called = false;
+  returned_result = false;
+  client.RequestPermission(GURL("http://example.com"),
+                           base::Bind(&ResultCallback, run_loop.QuitClosure()));
+  run_loop.Run();
+  EXPECT_TRUE(callback_called);
+  EXPECT_TRUE(returned_result);
+  client.SetAuthority("Bad");
+  base::RunLoop run_loop2;
+  callback_called = false;
+  returned_result = true;
+  client.RequestPermission(
+      GURL("http://example.com"),
+      base::Bind(&ResultCallback, run_loop2.QuitClosure()));
+  run_loop2.Run();
+  EXPECT_TRUE(callback_called);
+  EXPECT_FALSE(returned_result);
+}