Navigation transitions: Parse out transition-entering-stylesheet link headers.

content/browser/transition_request_manager_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 "content/browser/transition_request_manager.h"
+#include "net/http/http_response_headers.h"
+#include "net/http/http_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace content {
+
+class TransitionRequestManagerTest : public testing::Test {
+ public:
+  virtual ~TransitionRequestManagerTest() {}
+};
+
+TEST_F(TransitionRequestManagerTest,
+       ParseTransitionStylesheetsFromNullHeaders) {
+  const GURL url("http://www.test.com/");
+  std::vector<GURL> entering_stylesheets;
+  scoped_refptr<net::HttpResponseHeaders> headers;
+
+  TransitionRequestManager::ParseTransitionStylesheetsFromHeaders(
+      headers, entering_stylesheets, url);
+  ASSERT_TRUE(entering_stylesheets.empty());
+}
+
+TEST_F(TransitionRequestManagerTest,
+       ParseTransitionStylesheetsFromEmptyHeaders) {
+  const GURL url("http://www.test.com/");
+  std::vector<GURL> entering_stylesheets;
+
+  char headers_string[] = "";
+  scoped_refptr<net::HttpResponseHeaders> headers(
+      new net::HttpResponseHeaders(net::HttpUtil::AssembleRawHeaders(
+          headers_string, sizeof(headers_string))));
+
+  TransitionRequestManager::ParseTransitionStylesheetsFromHeaders(
+      headers, entering_stylesheets, url);
+  ASSERT_TRUE(entering_stylesheets.empty());
+}
+
+TEST_F(TransitionRequestManagerTest,
+       ParseTransitionStylesheetsFromHeadersForInvalidURL) {
+  const GURL url;
+  std::vector<GURL> entering_stylesheets;
+
+  char headers_string[] =
+      "HTTP/1.0 200 OK\r\n"
+      "link: <transition.css>;rel=transition-entering-stylesheet;scope=*\r\n"
+      "\r\n";
+  scoped_refptr<net::HttpResponseHeaders> headers(
+      new net::HttpResponseHeaders(net::HttpUtil::AssembleRawHeaders(
+          headers_string, sizeof(headers_string))));
+
+  TransitionRequestManager::ParseTransitionStylesheetsFromHeaders(
+      headers, entering_stylesheets, url);
+  ASSERT_TRUE(entering_stylesheets.empty());
+}
+
+TEST_F(TransitionRequestManagerTest, ParseTransitionStylesheetsFromHeaders) {
+  const GURL url("http://www.test.com/");
+  std::vector<GURL> entering_stylesheets;
+
+  char headers_string[] =
+      "HTTP/1.0 200 OK\r\n"
+      "link: <transition.css>;rel=transition-entering-stylesheet;scope=*\r\n"
+      "\r\n";
+  scoped_refptr<net::HttpResponseHeaders> headers(
+      new net::HttpResponseHeaders(net::HttpUtil::AssembleRawHeaders(
+          headers_string, sizeof(headers_string))));
+
+  TransitionRequestManager::ParseTransitionStylesheetsFromHeaders(
+      headers, entering_stylesheets, url);
+  ASSERT_TRUE(entering_stylesheets.size() == 1);
+  ASSERT_STREQ((url.spec() + "transition.css").c_str(),
+               entering_stylesheets[0].spec().c_str());
+}
+
+TEST_F(TransitionRequestManagerTest,
+       ParseMultipleTransitionStylesheetsFromHeaders) {
+  const GURL url("http://www.test.com/");
+  std::vector<GURL> entering_stylesheets;
+
+  char headers_string[] =
+      "HTTP/1.0 200 OK\r\n"
+      "link: <transition0.css>;rel=transition-entering-stylesheet;scope=*\r\n"
+      "link: <transition1.css>;rel=transition-entering-stylesheet;scope=*\r\n"
+      "link: <transition2.css>;rel=transition-entering-stylesheet;scope=*\r\n"
+      "\r\n";
+  scoped_refptr<net::HttpResponseHeaders> headers(
+      new net::HttpResponseHeaders(net::HttpUtil::AssembleRawHeaders(
+          headers_string, sizeof(headers_string))));
+
+  TransitionRequestManager::ParseTransitionStylesheetsFromHeaders(
+      headers, entering_stylesheets, url);
+  ASSERT_TRUE(entering_stylesheets.size() == 3);
+  ASSERT_STREQ((url.spec() + "transition0.css").c_str(),
+               entering_stylesheets[0].spec().c_str());
+  ASSERT_STREQ((url.spec() + "transition1.css").c_str(),
+               entering_stylesheets[1].spec().c_str());
+  ASSERT_STREQ((url.spec() + "transition2.css").c_str(),
+               entering_stylesheets[2].spec().c_str());
+}
+
+}  // namespace content