Create a proprietary scheme for loading web-accessible resources.

content/browser/resource_protocol_unittest.cc

+// 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 "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "base/strings/stringprintf.h"
+#include "content/browser/resource_protocol.h"
+#include "content/public/common/content_client.h"
+#include "content/public/common/url_constants.h"
+#include "net/url_request/url_request.h"
+#include "net/url_request/url_request_job_factory_impl.h"
+#include "net/url_request/url_request_test_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace content {
+namespace {
+
+const char kHelloWorldHost[] = "hello-world";
+const char kHelloWorldPath[] = "/hello.txt";
+const char kInvalidPath[] = "/invalid.txt";
+const int kHelloWorldResourceId = 42;
+const char kHelloWorld[] = "Hello, world!";
+const char kTextPlain[] = "text/plain";
+
+class HelloWorldContentClient : public ContentClient {
+ public:
+  base::StringPiece GetDataResource(
+      int resource_id,
+      ui::ScaleFactor scale_factor) const override {
+    if (resource_id == kHelloWorldResourceId)
+      return kHelloWorld;
+    else

[Tom Sepez, 2014/11/17 18:09:11]

nit: else after return.

[jbroman, 2014/11/17 18:35:16]

Done.

+      return ContentClient::GetDataResource(resource_id, scale_factor);
+  }
+};
+
+class ResourceProtocolTest : public ::testing::Test {
+ protected:
+  ResourceProtocolTest() : context_(true) {
+    scoped_ptr<ResourceProtocolHandler> handler(
+        new ResourceProtocolHandler(&content_client_));
+    handler->RegisterResource(kHelloWorldHost, kHelloWorldPath,
+                              kHelloWorldResourceId, ui::SCALE_FACTOR_NONE,
+                              kTextPlain);
+    job_factory_.SetProtocolHandler(kResourceScheme, handler.release());
+    context_.set_job_factory(&job_factory_);
+    context_.Init();
+  }
+
+  void StartRequest(const char* path) {
+    GURL url(base::StringPrintf("%s://%s%s", kResourceScheme, kHelloWorldHost,
+                                path));
+    request_ =
+        context_.CreateRequest(url, net::DEFAULT_PRIORITY, &delegate_, nullptr);
+    request_->Start();
+    EXPECT_TRUE(request_->is_pending());
+    base::RunLoop().Run();
+    EXPECT_FALSE(request_->is_pending());
+  }
+
+  base::MessageLoop message_loop_;
+  HelloWorldContentClient content_client_;
+  net::URLRequestJobFactoryImpl job_factory_;
+  net::TestURLRequestContext context_;
+  net::TestDelegate delegate_;
+  scoped_ptr<net::URLRequest> request_;
+};
+
+TEST_F(ResourceProtocolTest, ValidResource) {
+  StartRequest(kHelloWorldPath);
+  ASSERT_TRUE(request_->status().is_success());
+  EXPECT_EQ(kHelloWorld, delegate_.data_received());
+}
+
+TEST_F(ResourceProtocolTest, InvalidResource) {
+  StartRequest(kInvalidPath);
+  EXPECT_TRUE(delegate_.request_failed());
+  EXPECT_EQ(net::ERR_FILE_NOT_FOUND, request_->status().error());
+}
+
+}  // namespace
+}  // namespace content