Rewrite HTML5 workers ui_tests to browser_tests. Compared to ui_tests, browser_tests are faster, le…

content/test/layout_browsertest.cc

 // Copyright (c) 2012 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/test/layout_browsertest.h"
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
+#include "base/rand_util.h"
 #include "base/scoped_temp_dir.h"
+#include "base/stringprintf.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/in_process_browser_test.h"
+#include "chrome/test/base/layout_test_http_server.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/public/common/content_paths.h"
 #include "net/base/net_util.h"
 
+#if defined(OS_WIN)
+static const char kPlatformName[] = "chromium-win";
+#elif defined(OS_MACOSX)
+static const char kPlatformName[] = "chromium-mac";
+#elif defined(OS_LINUX)
+static const char kPlatformName[] = "chromium-linux";
+#elif defined(OS_OPENBSD)
+static const char kPlatformName[] = "chromium-openbsd";
+#else
+#error No known OS defined
+#endif
+
 namespace {
 
 size_t FindInsertPosition(const std::string& html) {
   size_t tag_start = html.find("<html");
   if (tag_start == std::string::npos)
     return 0;
   size_t tag_end = html.find(">", tag_start);
   if (tag_end == std::string::npos)
     return 0;
   return tag_end + 1;
 }
 
-void ReadExpectedResult(const FilePath& result_dir_path,
+bool ReadExpectedResult(const FilePath& result_dir_path,
                         const std::string test_case_file_name,
                         std::string* expected_result_value) {
   FilePath expected_result_path(result_dir_path);
   expected_result_path = expected_result_path.AppendASCII(test_case_file_name);
   expected_result_path = expected_result_path.InsertBeforeExtension(
       FILE_PATH_LITERAL("-expected"));
   expected_result_path =
       expected_result_path.ReplaceExtension(FILE_PATH_LITERAL("txt"));
-  std::string raw_result;
-  EXPECT_TRUE(file_util::ReadFileToString(expected_result_path, &raw_result));
-  TrimString(raw_result, "\n", expected_result_value);
+  return file_util::ReadFileToString(
+      expected_result_path, expected_result_value);
 }
 
 void ScrapeResultFromBrowser(Browser* browser, std::string* actual_text) {
   DOMElementProxyRef doc = ui_test_utils::GetActiveDOMDocument(browser);
   DOMElementProxyRef body =
       doc->FindElement(DOMElementProxy::By::XPath("//body"));
   ASSERT_TRUE(body.get());
   ASSERT_TRUE(body->GetInnerText(actual_text));
 }
 
 static const std::string preamble =
       "\n<script>\n"
       "function LayoutTestController() {\n"
       "  this.dumpAsText = function () {};\n"
       "  this.waitUntilDone = function () {};\n"
       "  this.notifyDone = function () {\n"
       "    document.title = 'done';\n"
       "  }\n"
+      "  this.overridePreference = function () {}\n"
+      "  this.workerThreadCount = 0; \n"
       "}\n"
       "window.layoutTestController = new LayoutTestController();\n"
       "</script>";
 
 }
 
 InProcessBrowserLayoutTest::InProcessBrowserLayoutTest(
-    const FilePath relative_layout_test_path)
-        : original_relative_path_(relative_layout_test_path) {
+    const FilePath& test_parent_dir, const FilePath& test_case_dir)
+    : test_parent_dir_(test_parent_dir), test_case_dir_(test_case_dir),
+      port_(-2) {
   EnableDOMAutomation();
 }
 
-InProcessBrowserLayoutTest::~InProcessBrowserLayoutTest() {}
+InProcessBrowserLayoutTest::InProcessBrowserLayoutTest(
+    const FilePath& test_parent_dir, const FilePath& test_case_dir, int port)
+    : test_parent_dir_(test_parent_dir), test_case_dir_(test_case_dir),
+      port_(port) {
+  EnableDOMAutomation();
+}
+
+InProcessBrowserLayoutTest::~InProcessBrowserLayoutTest() {
+  if (test_http_server_.get())
+    CHECK(test_http_server_->Stop());
+}
 
 void InProcessBrowserLayoutTest::SetUpInProcessBrowserTestFixture() {
   ASSERT_TRUE(scoped_temp_dir_.CreateUniqueTempDir());
-  FilePath ThirdParty_WebKit_LayoutTests;
-  ASSERT_TRUE(PathService::Get(content::DIR_LAYOUT_TESTS,
-                               &ThirdParty_WebKit_LayoutTests));
+  FilePath src_dir;
+  ASSERT_TRUE(PathService::Get(content::DIR_LAYOUT_TESTS, &src_dir));
   our_original_layout_test_dir_ =
-      ThirdParty_WebKit_LayoutTests.Append(original_relative_path_);
+      src_dir.Append(test_parent_dir_).Append(test_case_dir_);
   ASSERT_TRUE(file_util::DirectoryExists(our_original_layout_test_dir_));
   our_layout_test_temp_dir_ = scoped_temp_dir_.path()
-      .AppendASCII("LayoutTests").Append(original_relative_path_);
-  ASSERT_TRUE(file_util::CreateDirectory(our_layout_test_temp_dir_));
+      .AppendASCII("LayoutTests").Append(test_parent_dir_);
+  ASSERT_TRUE(file_util::CreateDirectory(
+      our_layout_test_temp_dir_.Append(test_case_dir_)));
   file_util::CopyDirectory(
       our_original_layout_test_dir_.AppendASCII("resources"),
-      our_layout_test_temp_dir_.AppendASCII("resources"),
+      our_layout_test_temp_dir_.Append(test_case_dir_).AppendASCII("resources"),
       true /*recursive*/);
+
+  // Gets the file path to rebased expected result directory for the current
+  // platform.
+  //   $LayoutTestRoot/platform/chromium_***/...
+  rebase_result_dir_ = src_dir.AppendASCII("platform");
+  rebase_result_dir_ = rebase_result_dir_.AppendASCII(kPlatformName);
+  rebase_result_dir_ = rebase_result_dir_.Append(test_parent_dir_);
+  rebase_result_dir_ = rebase_result_dir_.Append(test_case_dir_);
+
+  // Generic chromium expected results. Not OS-specific. For example,
+  // v8-specific differences go here.
+  // chrome/test/data/layout_tests/LayoutTests/platform/chromium/...
+  rebase_result_chromium_dir_ = src_dir.AppendASCII("platform").
+                                        AppendASCII("chromium").
+                                        Append(test_parent_dir_).
+                                        Append(test_case_dir_);
+
+  // Gets the file path to rebased expected result directory under the
+  // win32 platform. This is used by other non-win32 platform to use the same
+  // rebased expected results.
+#if !defined(OS_WIN)
+  rebase_result_win_dir_ = src_dir.AppendASCII("platform").
+                                   AppendASCII("chromium-win").
+                                   Append(test_parent_dir_).
+                                   Append(test_case_dir_);
+#endif
+
+  if (port_ != -2) {
+    // Layout tests expect that the server points at the
+    // LayoutTests\http\tests directory.
+    if (port_ == -1)
+      port_ = base::RandInt(1024, 65535);
+    test_http_server_.reset(new LayoutTestHttpServer(
+        our_layout_test_temp_dir_, port_));
+    ASSERT_TRUE(test_http_server_->Start());
+  }
 }
 
 void InProcessBrowserLayoutTest::RunLayoutTest(
     const std::string& test_case_file_name) {
-  GURL test_url;
-  WriteModifiedFile(test_case_file_name, &test_url);
+  FilePath file_path;
+  WriteModifiedFile(test_case_file_name, &file_path);
+  GURL url = net::FilePathToFileURL(file_path);
+  RunLayoutTestInternal(test_case_file_name, url);
+}
 
-  LOG(INFO) << "Navigating to URL " << test_url << " and blocking.";
+void InProcessBrowserLayoutTest::RunHttpLayoutTest(
+    const std::string& test_case_file_name) {
+  DCHECK(test_http_server_.get());
+  FilePath file_path;
+  WriteModifiedFile(test_case_file_name, &file_path);
+
+  GURL url(StringPrintf(
+      "http://127.0.0.1:%d/%s/%s", port_, test_case_dir_.MaybeAsASCII().c_str(),
+      test_case_file_name.c_str()));
+  RunLayoutTestInternal(test_case_file_name, url);
+}
+
+void InProcessBrowserLayoutTest::RunLayoutTestInternal(
+    const std::string& test_case_file_name, const GURL& url) {
+  LOG(INFO) << "Navigating to URL " << url << " and blocking.";
   const string16 expected_title = ASCIIToUTF16("done");
   ui_test_utils::TitleWatcher title_watcher(
       browser()->GetSelectedWebContents(), expected_title);
-  ui_test_utils::NavigateToURL(browser(), test_url);
+  ui_test_utils::NavigateToURL(browser(), url);
   string16 final_title = title_watcher.WaitAndGetTitle();
   EXPECT_EQ(expected_title, final_title);
 
   std::string actual_text;
   ScrapeResultFromBrowser(browser(), &actual_text);
+  ReplaceSubstringsAfterOffset(&actual_text, 0, "\r", "");
+  TrimString(actual_text, "\n", &actual_text);
 
   std::string expected_text;
-  ReadExpectedResult(our_original_layout_test_dir_, test_case_file_name,
-                     &expected_text);
+  // Reads the expected result. First try to read from rebase directory.
+  // If failed, read from original directory.
+  if (!ReadExpectedResult(rebase_result_dir_,
+                          test_case_file_name,
+                          &expected_text) &&
+      !ReadExpectedResult(rebase_result_chromium_dir_,
+                          test_case_file_name,
+                          &expected_text)) {
+    if (rebase_result_win_dir_.empty() ||
+        !ReadExpectedResult(rebase_result_win_dir_,
+                            test_case_file_name,
+                            &expected_text))
+      ReadExpectedResult(our_original_layout_test_dir_,
+                         test_case_file_name,
+                         &expected_text);
+  }
+  ASSERT_TRUE(!expected_text.empty());
+  ReplaceSubstringsAfterOffset(&expected_text, 0, "\r", "");
+  TrimString(expected_text, "\n", &expected_text);
 
   EXPECT_EQ(expected_text, actual_text);
 }
 
 void InProcessBrowserLayoutTest::AddResourceForLayoutTest(
     const FilePath& parent_dir,
     const FilePath& resource_name) {
   FilePath source;
   ASSERT_TRUE(PathService::Get(content::DIR_LAYOUT_TESTS, &source));
   source = source.Append(parent_dir);
   source = source.Append(resource_name);
 
   ASSERT_TRUE(file_util::PathExists(source));
 
   FilePath dest_parent_dir = scoped_temp_dir_.path().
       AppendASCII("LayoutTests").Append(parent_dir);
   ASSERT_TRUE(file_util::CreateDirectory(dest_parent_dir));
   FilePath dest = dest_parent_dir.Append(resource_name);
 
   if (file_util::DirectoryExists(source)) {
+    ASSERT_TRUE(file_util::CreateDirectory(dest.DirName()));
     ASSERT_TRUE(file_util::CopyDirectory(source, dest, true));
   } else {
     ASSERT_TRUE(file_util::CopyFile(source, dest));
   }
 }
 
 void InProcessBrowserLayoutTest::WriteModifiedFile(
-    const std::string& test_case_file_name, GURL* test_url) {
+    const std::string& test_case_file_name, FilePath* test_path) {
   FilePath path_to_single_test =
       our_original_layout_test_dir_.AppendASCII(test_case_file_name);
   std::string test_html;
   ASSERT_TRUE(file_util::ReadFileToString(path_to_single_test, &test_html));
 
   size_t insertion_position = FindInsertPosition(test_html);
   test_html.insert(insertion_position, preamble);
-  FilePath new_test_file_path(our_layout_test_temp_dir_);
-  new_test_file_path = new_test_file_path.AppendASCII(test_case_file_name);
-  ASSERT_TRUE(file_util::WriteFile(new_test_file_path,
+  *test_path = our_layout_test_temp_dir_.Append(test_case_dir_);
+  *test_path = test_path->AppendASCII(test_case_file_name);
+  ASSERT_TRUE(file_util::WriteFile(*test_path,
                                    &test_html.at(0),
                                    static_cast<int>(test_html.size())));
-  *test_url = net::FilePathToFileURL(new_test_file_path);
 }