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// 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/web_contents/web_contents_impl.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;
}
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"));
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.wait_until_done_ = false;\n"
" this.dumpAsText = function () {};\n"
" this.waitUntilDone = function () {\n"
" this.wait_until_done_ = true;\n"
" }\n"
" this.notifyDone = function () {\n"
" document.title = 'done';\n"
" }\n"
" this.overridePreference = function () {}\n"
" this.OnEvent = function () {\n"
" if (!layoutTestController.wait_until_done_)\n"
" layoutTestController.notifyDone();\n"
" }\n"
" this.workerThreadCount = 0; \n"
"}\n"
"window.layoutTestController = new LayoutTestController();\n"
"window.addEventListener('load', layoutTestController.OnEvent, false);\n"
"</script>";
}
InProcessBrowserLayoutTest::InProcessBrowserLayoutTest(
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(
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 src_dir;
ASSERT_TRUE(PathService::Get(content::DIR_LAYOUT_TESTS, &src_dir));
our_original_layout_test_dir_ =
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(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_.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) {
FilePath file_path;
WriteModifiedFile(test_case_file_name, &file_path);
GURL url = net::FilePathToFileURL(file_path);
RunLayoutTestInternal(test_case_file_name, url);
}
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(), url);
LOG(INFO) << "Navigation completed, now waiting for title.";
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;
// 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, 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);
*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())));
}
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