src/net/instaweb/rewriter/js_disable_filter_test.cc - incubator-pagespeed-debian - Git at Google

 /*
  * Copyright 2010 Google Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 // Author: gagansingh@google.com (Gagan Singh)

 #include "net/instaweb/rewriter/public/js_disable_filter.h"

 #include "net/instaweb/http/public/log_record.h"
 #include "net/instaweb/http/public/logging_proto_impl.h"
 #include "net/instaweb/rewriter/public/rewrite_driver.h"
 #include "net/instaweb/rewriter/public/rewrite_options.h"
 #include "net/instaweb/rewriter/public/rewrite_test_base.h"
 #include "testing/base/public/gunit.h"
 #include "pagespeed/kernel/base/scoped_ptr.h"
 #include "pagespeed/kernel/base/string.h"
 #include "pagespeed/kernel/base/string_util.h"
 #include "pagespeed/kernel/base/string_writer.h"
 #include "pagespeed/kernel/http/user_agent_matcher_test_base.h"
 #include "pagespeed/opt/logging/enums.pb.h"

 namespace net_instaweb {

 namespace {

 const char kUnrelatedNoscriptTags[] =
     "<noscript>This is original noscript tag</noscript>";
 const char kUnrelatedTags[] =
     "<div id=\"contentContainer\">"
     "<h1>Hello 1</h1>"
     "<div id=\"middleFooter\"><h3>Hello 3</h3></div>"
     "</div>";
 const char kXUACompatibleMetaTag[] =
     "<meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">";

 }  // namespace


 class JsDisableFilterTest : public RewriteTestBase {
  protected:
   virtual void SetUp() {
     options_->EnableFilter(RewriteOptions::kDisableJavascript);
     options_->EnableFilter(RewriteOptions::kDeferJavascript);
     options_->Disallow("*donotmove*");
     RewriteTestBase::SetUp();
     filter_.reset(new JsDisableFilter(rewrite_driver()));
     rewrite_driver()->AddFilter(filter_.get());
   }

   virtual bool AddBody() const {
     return false;
   }

   void ExpectLogRecord(int index, int status, bool has_pagespeed_no_defer) {
     AbstractLogRecord* log_record = rewrite_driver_->log_record();
     const RewriterInfo& rewriter_info =
         log_record->logging_info()->rewriter_info(index);
     EXPECT_EQ("jd", rewriter_info.id());
     EXPECT_EQ(status, rewriter_info.status());
     EXPECT_EQ(has_pagespeed_no_defer,
               rewriter_info.rewrite_resource_info().has_pagespeed_no_defer());
   }

   scoped_ptr<JsDisableFilter> filter_;
 };

 TEST_F(JsDisableFilterTest, DisablesScript) {
   const GoogleString input_html = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script></script>"
       "<script src=\"blah1\" random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<img src=\"abc.jpg\" onload=\"foo1('abc');foo2();\">"
       "<script src=\"blah2\" random=\"false\">hi2</script>"
       "<script src=\"blah3\" data-pagespeed-no-defer=\"\"></script>"
       "<script src=\"blah4\" pagespeed_no_defer=\"\"></script>"
       "<script src=\"something-donotmove\"></script>"
       "</body>");
   const GoogleString expected = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script type=\"text/psajs\" orig_index=\"0\"></script>"
       "<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
       " orig_index=\"1\">hi1</script>",
       kUnrelatedTags, StrCat(
       "<img src=\"abc.jpg\" data-pagespeed-onload=\"foo1('abc');foo2();\" "
       "onload=\"", JsDisableFilter::kElementOnloadCode, "\">"
       "<script src=\"blah2\" random=\"false\""
       " type=\"text/psajs\" orig_index=\"2\">hi2</script>"
       "<script src=\"blah3\" data-pagespeed-no-defer=\"\"></script>"
       "<script src=\"blah4\" pagespeed_no_defer=\"\"></script>"
       "<script src=\"something-donotmove\"></script>"
       "</body>"));

   ValidateExpectedUrl("http://example.com/", input_html, expected);
   ExpectLogRecord(0, RewriterApplication::APPLIED_OK, false);
   ExpectLogRecord(1, RewriterApplication::APPLIED_OK, false);
   ExpectLogRecord(2, RewriterApplication::APPLIED_OK, false);
   ExpectLogRecord(3, RewriterApplication::APPLIED_OK, true);
   ExpectLogRecord(4, RewriterApplication::APPLIED_OK, true);
   ExpectLogRecord(5, RewriterApplication::APPLIED_OK, true);
   rewrite_driver_->log_record()->WriteLog();
   for (int i = 0; i < logging_info()->rewriter_stats_size(); i++) {
     if (logging_info()->rewriter_stats(i).id() == "jd" &&
         logging_info()->rewriter_stats(i).has_html_status()) {
       EXPECT_EQ(RewriterHtmlApplication::ACTIVE,
                 logging_info()->rewriter_stats(i).html_status());
       const RewriteStatusCount& count_applied =
           logging_info()->rewriter_stats(i).status_counts(0);
       EXPECT_EQ(RewriterApplication::APPLIED_OK,
                 count_applied.application_status());
       EXPECT_EQ(6, count_applied.count());
       return;
     }
   }
   FAIL();
 }

 TEST_F(JsDisableFilterTest, InvalidUserAgent) {
   SetCurrentUserAgent("BlackListUserAgent");
   const char script[] = "<head>"
       "<script "
       "src='http://www.google.com/javascript/ajax_apis.js'></script>"
       "<script"
       "> func();</script>"
       "</head><body>Hello, world!</body>";

   ValidateNoChanges("defer_script", script);
   rewrite_driver_->log_record()->WriteLog();
   for (int i = 0; i < logging_info()->rewriter_stats_size(); i++) {
     if (logging_info()->rewriter_stats(i).id() == "jd" &&
         logging_info()->rewriter_stats(i).has_html_status()) {
       EXPECT_EQ(RewriterHtmlApplication::USER_AGENT_NOT_SUPPORTED,
                 logging_info()->rewriter_stats(i).html_status());
       return;
     }
   }
   FAIL();
 }

 TEST_F(JsDisableFilterTest, DisablesScriptWithExperimental) {
   options()->set_enable_defer_js_experimental(true);

   const char kUnrelatedNoscriptTags[] =
       "<noscript>This is original noscript tag</noscript>";
   const char kUnrelatedTags[] =
       "<div id=\"contentContainer\">"
       "<h1>Hello 1</h1>"
       "<div id=\"middleFooter\"><h3>Hello 3</h3></div>"
       "</div>";

   const GoogleString input_html = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script src=\"blah1\" random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<script src=\"blah2\" random=\"false\">hi2</script>",
       "</body>");
   const GoogleString expected = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
       " orig_index=\"0\">hi1</script>",
       kUnrelatedTags,
       "<script src=\"blah2\" random=\"false\""
       " type=\"text/psajs\" orig_index=\"1\">hi2</script>"
       "<script type=\"text/javascript\" data-pagespeed-no-defer>",
       JsDisableFilter::kEnableJsExperimental,
       "</script></body>");

   ValidateExpectedUrl("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, DisablesScriptWithQueryParam) {
   const GoogleString input_html = StrCat(
       kUnrelatedNoscriptTags,
       "<script src=\"x?a=b&amp;c=d\" random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<script src=\"y?a=b&amp;c=d\" random=\"false\">hi2</script>");
   const GoogleString expected = StrCat(
       kUnrelatedNoscriptTags,
       "<script src=\"x?a=b&amp;c=d\" random=\"true\""
       " type=\"text/psajs\" orig_index=\"0\">hi1</script>",
       kUnrelatedTags,
       "<script src=\"y?a=b&amp;c=d\" random=\"false\""
       " type=\"text/psajs\" orig_index=\"1\">hi2</script>");

   ValidateExpectedUrl("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, PrefetchScriptWithImageTemplate) {
   SetCurrentUserAgent(UserAgentMatcherTestBase::kChrome15UserAgent);
   SetDriverRequestHeaders();
   options()->set_max_prefetch_js_elements(3);
   const GoogleString src_url = "//abc.org/m/load.php?debug=false&amp;"
       "lang=en&amp;modules=startup&amp;only=scripts&amp;*";
   // Verify JS escaping works as expected and not HTML escaping.
   const GoogleString escaped_src = "//abc.org/m/load.php?debug=false&lang=en&"
       "modules=startup&only=scripts&*";

   const GoogleString expected = StrCat(
       "<head>"
       "<script type=\"text/psajs\" orig_index=\"0\"></script>"
       "<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
       " orig_index=\"1\">hi1</script>"
       "<script src=\"blah2\" random=\"false\""
       " type=\"text/psajs\" orig_index=\"2\">hi2</script>"
       "<script src=\"blah3\" data-pagespeed-no-defer></script>"
       "<script src=\"", src_url, "\" type=\"text/psajs\""
       " orig_index=\"3\">hi4</script>"
       "<script src=\"blah5\" type=\"text/psajs\""
       " orig_index=\"4\">Not a prefetch candidate</script>"
       "</head><body>"
       "<script data-pagespeed-no-defer>(function(){"
       "new Image().src=\"blah1\";"
       "new Image().src=\"blah2\";"
       "new Image().src=\"", escaped_src, "\";})()"
       "</script></body>");

   html_parse()->SetWriter(&write_to_string_);
   html_parse()->StartParse("http://example.com");
   html_parse()->ParseText(
       "<head>"
       "<script></script>"
       "<script src=\"blah1\" random=\"true\">hi1");
   html_parse()->Flush();
   html_parse()->ParseText(StrCat("</script>"
       "<script src=\"blah2\" random=\"false\">hi2</script>"
       "<script src=\"blah3\" data-pagespeed-no-defer></script>"
       "<script src=\"", src_url, "\">hi4</script>"
       "<script src=\"blah5\">Not a prefetch candidate</script>"
       "</head><body>"));
   html_parse()->Flush();
   html_parse()->ParseText("</body>");
   html_parse()->FinishParse();
   EXPECT_STREQ(expected, output_buffer_);
 }

 TEST_F(JsDisableFilterTest, PrefetchScriptInHeadNotInBody) {
   SetCurrentUserAgent(UserAgentMatcherTestBase::kChrome15UserAgent);
   options()->set_max_prefetch_js_elements(3);
   const GoogleString input_html = StrCat(
       "<head>",
       kUnrelatedNoscriptTags,
       "<script></script>"
       "<script src=\"blah1\" random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<script src=\"blah2\" random=\"false\">hi2</script>"
       "</head><body>"
       "<script src=\"blah3\" data-pagespeed-no-defer></script>"
       "<script src=\"blah4\">dont show up in prefetch script</script>"
       "</body>");

   const GoogleString prefetch_script =
       "<script data-pagespeed-no-defer>(function(){"
       "new Image().src=\"blah1\";"
       "new Image().src=\"blah2\";})()"
       "</script>";

   const GoogleString expected = StrCat(
       "<head>",
       kUnrelatedNoscriptTags,
       "<script type=\"text/psajs\" orig_index=\"0\"></script>"
       "<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
       " orig_index=\"1\">hi1</script>",
       kUnrelatedTags, StrCat(
       "<script src=\"blah2\" random=\"false\""
       " type=\"text/psajs\" orig_index=\"2\">hi2</script>"
       "</head>"
       "<body>", prefetch_script,
       "<script src=\"blah3\" data-pagespeed-no-defer></script>"
       "<script src=\"blah4\" type=\"text/psajs\""
       " orig_index=\"3\">dont show up in prefetch script</script>"
       "</body>"));

   ValidateExpectedUrl("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, DisablesScriptWithUnescapedQueryParam) {
   const GoogleString input_html = StrCat(
       kUnrelatedNoscriptTags,
       "<script src=\"x?a=b&c=d\" random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<script src=\"y?a=b&c=d\" random=\"false\">hi2</script>");
   const GoogleString expected = StrCat(
       kUnrelatedNoscriptTags,
       "<script src=\"x?a=b&c=d\" random=\"true\""
       " type=\"text/psajs\" orig_index=\"0\">hi1</script>",
       kUnrelatedTags,
       "<script src=\"y?a=b&c=d\" random=\"false\""
       " type=\"text/psajs\" orig_index=\"1\">hi2</script>");

   ValidateExpectedUrl("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, DisablesScriptWithNullSrc) {
   const GoogleString input_html = StrCat(
       kUnrelatedNoscriptTags,
       "<script src random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<script src random=\"false\">hi2</script>");
   const GoogleString expected = StrCat(
       kUnrelatedNoscriptTags,
       "<script src random=\"true\" type=\"text/psajs\""
       " orig_index=\"0\">hi1</script>",
       kUnrelatedTags,
       "<script src random=\"false\" type=\"text/psajs\""
       " orig_index=\"1\">hi2</script>");

   ValidateExpected("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, DisablesScriptOnlyFromFirstSrc) {
   options()->set_enable_defer_js_experimental(true);
   options_->EnableFilter(RewriteOptions::kDeferJavascript);
   const GoogleString input_html = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<script random=\"false\">hi2</script>"
       "<script src=\"1.js?a#12296;=en\"></script></body>");
   const GoogleString expected = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script random=\"true\" type=\"text/psajs\" orig_index=\"0\">"
       "hi1</script>",
       kUnrelatedTags,
       "<script random=\"false\" type=\"text/psajs\" orig_index=\"1\">"
       "hi2</script>"
       "<script src=\"1.js?a#12296;=en\" type=\"text/psajs\""
       " orig_index=\"2\"></script>"
       "<script type=\"text/javascript\" data-pagespeed-no-defer>",
       JsDisableFilter::kEnableJsExperimental,
       "</script></body>");

   ValidateExpected("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, AddsMetaTagForIE) {
   SetCurrentUserAgent("Mozilla/5.0 ( MSIE 10.0; Trident/5.0)");
   const GoogleString input_html = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script src=\"blah1\" random=\"true\">hi1</script>",
       kUnrelatedTags,
       "</body>");
   const GoogleString expected = StrCat(
       StrCat("<head>",
       kXUACompatibleMetaTag,
       "</head>"
       "<body>"),
       StrCat(kUnrelatedNoscriptTags,
       "<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
       " orig_index=\"0\">hi1</script>",
       kUnrelatedTags),
       "</body>");

   ValidateExpectedUrl("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, DisablesScriptWithMultipleTypeAttributes) {
   const GoogleString input_html = StrCat(
       kUnrelatedNoscriptTags,
       "<script src=\"x?a=b&amp;c=d\" type='text/javascript' type='a' type='b'>"
       "hi1</script>",
       kUnrelatedTags);
   const GoogleString expected = StrCat(
       kUnrelatedNoscriptTags,
       "<script src=\"x?a=b&amp;c=d\""
       " data-pagespeed-orig-type='text/javascript'"
       " type=\"text/psajs\" orig_index=\"0\">hi1</script>",
       kUnrelatedTags);

   ValidateExpectedUrl("http://example.com/", input_html, expected);
 }

 TEST_F(JsDisableFilterTest, ScriptWithPagespeedPrioritizeAttribute) {
   options()->set_enable_prioritizing_scripts(true);
   const GoogleString input_html = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script src=\"blah1\" random=\"true\">hi1</script>",
       kUnrelatedTags,
       "<img src=\"abc.jpg\" onload=\"foo1();foo2();\">"
       "<script src=\"blah2\" random=\"false\" data-pagespeed-prioritize>hi2"
       "</script>"
       "<script data-pagespeed-prioritize>hi5</script>"
       "</body>");
   const GoogleString expected = StrCat(
       "<body>",
       kUnrelatedNoscriptTags,
       "<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
       " orig_index=\"0\">hi1</script>",
       kUnrelatedTags, StrCat(
       "<img src=\"abc.jpg\" data-pagespeed-onload=\"foo1();foo2();\" "
       "onload=\"", JsDisableFilter::kElementOnloadCode, "\">"
       "<script src=\"blah2\" random=\"false\" data-pagespeed-prioritize "
       "type=\"text/prioritypsajs\" orig_index=\"1\">"
       "hi2</script>"
       "<script data-pagespeed-prioritize type=\"text/prioritypsajs\" "
       "orig_index=\"2\">hi5</script>"
       "</body>"));
   ValidateExpectedUrl("http://example.com/", input_html, expected);
 }

 }  // namespace net_instaweb
	/*
	* Copyright 2010 Google Inc.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	// Author: gagansingh@google.com (Gagan Singh)

	#include "net/instaweb/rewriter/public/js_disable_filter.h"

	#include "net/instaweb/http/public/log_record.h"
	#include "net/instaweb/http/public/logging_proto_impl.h"
	#include "net/instaweb/rewriter/public/rewrite_driver.h"
	#include "net/instaweb/rewriter/public/rewrite_options.h"
	#include "net/instaweb/rewriter/public/rewrite_test_base.h"
	#include "testing/base/public/gunit.h"
	#include "pagespeed/kernel/base/scoped_ptr.h"
	#include "pagespeed/kernel/base/string.h"
	#include "pagespeed/kernel/base/string_util.h"
	#include "pagespeed/kernel/base/string_writer.h"
	#include "pagespeed/kernel/http/user_agent_matcher_test_base.h"
	#include "pagespeed/opt/logging/enums.pb.h"

	namespace net_instaweb {

	namespace {

	const char kUnrelatedNoscriptTags[] =
	"<noscript>This is original noscript tag</noscript>";
	const char kUnrelatedTags[] =
	"<div id=\"contentContainer\">"
	"<h1>Hello 1</h1>"
	"<div id=\"middleFooter\"><h3>Hello 3</h3></div>"
	"</div>";
	const char kXUACompatibleMetaTag[] =
	"<meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">";

	} // namespace


	class JsDisableFilterTest : public RewriteTestBase {
	protected:
	virtual void SetUp() {
	options_->EnableFilter(RewriteOptions::kDisableJavascript);
	options_->EnableFilter(RewriteOptions::kDeferJavascript);
	options_->Disallow("donotmove");
	RewriteTestBase::SetUp();
	filter_.reset(new JsDisableFilter(rewrite_driver()));
	rewrite_driver()->AddFilter(filter_.get());
	}

	virtual bool AddBody() const {
	return false;
	}

	void ExpectLogRecord(int index, int status, bool has_pagespeed_no_defer) {
	AbstractLogRecord* log_record = rewrite_driver_->log_record();
	const RewriterInfo& rewriter_info =
	log_record->logging_info()->rewriter_info(index);
	EXPECT_EQ("jd", rewriter_info.id());
	EXPECT_EQ(status, rewriter_info.status());
	EXPECT_EQ(has_pagespeed_no_defer,
	rewriter_info.rewrite_resource_info().has_pagespeed_no_defer());
	}

	scoped_ptr<JsDisableFilter> filter_;
	};

	TEST_F(JsDisableFilterTest, DisablesScript) {
	const GoogleString input_html = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script></script>"
	"<script src=\"blah1\" random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<img src=\"abc.jpg\" onload=\"foo1('abc');foo2();\">"
	"<script src=\"blah2\" random=\"false\">hi2</script>"
	"<script src=\"blah3\" data-pagespeed-no-defer=\"\"></script>"
	"<script src=\"blah4\" pagespeed_no_defer=\"\"></script>"
	"<script src=\"something-donotmove\"></script>"
	"</body>");
	const GoogleString expected = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script type=\"text/psajs\" orig_index=\"0\"></script>"
	"<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
	" orig_index=\"1\">hi1</script>",
	kUnrelatedTags, StrCat(
	"<img src=\"abc.jpg\" data-pagespeed-onload=\"foo1('abc');foo2();\" "
	"onload=\"", JsDisableFilter::kElementOnloadCode, "\">"
	"<script src=\"blah2\" random=\"false\""
	" type=\"text/psajs\" orig_index=\"2\">hi2</script>"
	"<script src=\"blah3\" data-pagespeed-no-defer=\"\"></script>"
	"<script src=\"blah4\" pagespeed_no_defer=\"\"></script>"
	"<script src=\"something-donotmove\"></script>"
	"</body>"));

	ValidateExpectedUrl("http://example.com/", input_html, expected);
	ExpectLogRecord(0, RewriterApplication::APPLIED_OK, false);
	ExpectLogRecord(1, RewriterApplication::APPLIED_OK, false);
	ExpectLogRecord(2, RewriterApplication::APPLIED_OK, false);
	ExpectLogRecord(3, RewriterApplication::APPLIED_OK, true);
	ExpectLogRecord(4, RewriterApplication::APPLIED_OK, true);
	ExpectLogRecord(5, RewriterApplication::APPLIED_OK, true);
	rewrite_driver_->log_record()->WriteLog();
	for (int i = 0; i < logging_info()->rewriter_stats_size(); i++) {
	if (logging_info()->rewriter_stats(i).id() == "jd" &&
	logging_info()->rewriter_stats(i).has_html_status()) {
	EXPECT_EQ(RewriterHtmlApplication::ACTIVE,
	logging_info()->rewriter_stats(i).html_status());
	const RewriteStatusCount& count_applied =
	logging_info()->rewriter_stats(i).status_counts(0);
	EXPECT_EQ(RewriterApplication::APPLIED_OK,
	count_applied.application_status());
	EXPECT_EQ(6, count_applied.count());
	return;
	}
	}
	FAIL();
	}

	TEST_F(JsDisableFilterTest, InvalidUserAgent) {
	SetCurrentUserAgent("BlackListUserAgent");
	const char script[] = "<head>"
	"<script "
	"src='http://www.google.com/javascript/ajax_apis.js'></script>"
	"<script"
	"> func();</script>"
	"</head><body>Hello, world!</body>";

	ValidateNoChanges("defer_script", script);
	rewrite_driver_->log_record()->WriteLog();
	for (int i = 0; i < logging_info()->rewriter_stats_size(); i++) {
	if (logging_info()->rewriter_stats(i).id() == "jd" &&
	logging_info()->rewriter_stats(i).has_html_status()) {
	EXPECT_EQ(RewriterHtmlApplication::USER_AGENT_NOT_SUPPORTED,
	logging_info()->rewriter_stats(i).html_status());
	return;
	}
	}
	FAIL();
	}

	TEST_F(JsDisableFilterTest, DisablesScriptWithExperimental) {
	options()->set_enable_defer_js_experimental(true);

	const char kUnrelatedNoscriptTags[] =
	"<noscript>This is original noscript tag</noscript>";
	const char kUnrelatedTags[] =
	"<div id=\"contentContainer\">"
	"<h1>Hello 1</h1>"
	"<div id=\"middleFooter\"><h3>Hello 3</h3></div>"
	"</div>";

	const GoogleString input_html = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script src=\"blah1\" random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<script src=\"blah2\" random=\"false\">hi2</script>",
	"</body>");
	const GoogleString expected = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
	" orig_index=\"0\">hi1</script>",
	kUnrelatedTags,
	"<script src=\"blah2\" random=\"false\""
	" type=\"text/psajs\" orig_index=\"1\">hi2</script>"
	"<script type=\"text/javascript\" data-pagespeed-no-defer>",
	JsDisableFilter::kEnableJsExperimental,
	"</script></body>");

	ValidateExpectedUrl("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, DisablesScriptWithQueryParam) {
	const GoogleString input_html = StrCat(
	kUnrelatedNoscriptTags,
	"<script src=\"x?a=b&c=d\" random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<script src=\"y?a=b&c=d\" random=\"false\">hi2</script>");
	const GoogleString expected = StrCat(
	kUnrelatedNoscriptTags,
	"<script src=\"x?a=b&c=d\" random=\"true\""
	" type=\"text/psajs\" orig_index=\"0\">hi1</script>",
	kUnrelatedTags,
	"<script src=\"y?a=b&c=d\" random=\"false\""
	" type=\"text/psajs\" orig_index=\"1\">hi2</script>");

	ValidateExpectedUrl("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, PrefetchScriptWithImageTemplate) {
	SetCurrentUserAgent(UserAgentMatcherTestBase::kChrome15UserAgent);
	SetDriverRequestHeaders();
	options()->set_max_prefetch_js_elements(3);
	const GoogleString src_url = "//abc.org/m/load.php?debug=false&"
	"lang=en&modules=startup&only=scripts&*";
	// Verify JS escaping works as expected and not HTML escaping.
	const GoogleString escaped_src = "//abc.org/m/load.php?debug=false&lang=en&"
	"modules=startup&only=scripts&*";

	const GoogleString expected = StrCat(
	"<head>"
	"<script type=\"text/psajs\" orig_index=\"0\"></script>"
	"<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
	" orig_index=\"1\">hi1</script>"
	"<script src=\"blah2\" random=\"false\""
	" type=\"text/psajs\" orig_index=\"2\">hi2</script>"
	"<script src=\"blah3\" data-pagespeed-no-defer></script>"
	"<script src=\"", src_url, "\" type=\"text/psajs\""
	" orig_index=\"3\">hi4</script>"
	"<script src=\"blah5\" type=\"text/psajs\""
	" orig_index=\"4\">Not a prefetch candidate</script>"
	"</head><body>"
	"<script data-pagespeed-no-defer>(function(){"
	"new Image().src=\"blah1\";"
	"new Image().src=\"blah2\";"
	"new Image().src=\"", escaped_src, "\";})()"
	"</script></body>");

	html_parse()->SetWriter(&write_to_string_);
	html_parse()->StartParse("http://example.com");
	html_parse()->ParseText(
	"<head>"
	"<script></script>"
	"<script src=\"blah1\" random=\"true\">hi1");
	html_parse()->Flush();
	html_parse()->ParseText(StrCat("</script>"
	"<script src=\"blah2\" random=\"false\">hi2</script>"
	"<script src=\"blah3\" data-pagespeed-no-defer></script>"
	"<script src=\"", src_url, "\">hi4</script>"
	"<script src=\"blah5\">Not a prefetch candidate</script>"
	"</head><body>"));
	html_parse()->Flush();
	html_parse()->ParseText("</body>");
	html_parse()->FinishParse();
	EXPECT_STREQ(expected, output_buffer_);
	}

	TEST_F(JsDisableFilterTest, PrefetchScriptInHeadNotInBody) {
	SetCurrentUserAgent(UserAgentMatcherTestBase::kChrome15UserAgent);
	options()->set_max_prefetch_js_elements(3);
	const GoogleString input_html = StrCat(
	"<head>",
	kUnrelatedNoscriptTags,
	"<script></script>"
	"<script src=\"blah1\" random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<script src=\"blah2\" random=\"false\">hi2</script>"
	"</head><body>"
	"<script src=\"blah3\" data-pagespeed-no-defer></script>"
	"<script src=\"blah4\">dont show up in prefetch script</script>"
	"</body>");

	const GoogleString prefetch_script =
	"<script data-pagespeed-no-defer>(function(){"
	"new Image().src=\"blah1\";"
	"new Image().src=\"blah2\";})()"
	"</script>";

	const GoogleString expected = StrCat(
	"<head>",
	kUnrelatedNoscriptTags,
	"<script type=\"text/psajs\" orig_index=\"0\"></script>"
	"<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
	" orig_index=\"1\">hi1</script>",
	kUnrelatedTags, StrCat(
	"<script src=\"blah2\" random=\"false\""
	" type=\"text/psajs\" orig_index=\"2\">hi2</script>"
	"</head>"
	"<body>", prefetch_script,
	"<script src=\"blah3\" data-pagespeed-no-defer></script>"
	"<script src=\"blah4\" type=\"text/psajs\""
	" orig_index=\"3\">dont show up in prefetch script</script>"
	"</body>"));

	ValidateExpectedUrl("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, DisablesScriptWithUnescapedQueryParam) {
	const GoogleString input_html = StrCat(
	kUnrelatedNoscriptTags,
	"<script src=\"x?a=b&c=d\" random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<script src=\"y?a=b&c=d\" random=\"false\">hi2</script>");
	const GoogleString expected = StrCat(
	kUnrelatedNoscriptTags,
	"<script src=\"x?a=b&c=d\" random=\"true\""
	" type=\"text/psajs\" orig_index=\"0\">hi1</script>",
	kUnrelatedTags,
	"<script src=\"y?a=b&c=d\" random=\"false\""
	" type=\"text/psajs\" orig_index=\"1\">hi2</script>");

	ValidateExpectedUrl("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, DisablesScriptWithNullSrc) {
	const GoogleString input_html = StrCat(
	kUnrelatedNoscriptTags,
	"<script src random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<script src random=\"false\">hi2</script>");
	const GoogleString expected = StrCat(
	kUnrelatedNoscriptTags,
	"<script src random=\"true\" type=\"text/psajs\""
	" orig_index=\"0\">hi1</script>",
	kUnrelatedTags,
	"<script src random=\"false\" type=\"text/psajs\""
	" orig_index=\"1\">hi2</script>");

	ValidateExpected("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, DisablesScriptOnlyFromFirstSrc) {
	options()->set_enable_defer_js_experimental(true);
	options_->EnableFilter(RewriteOptions::kDeferJavascript);
	const GoogleString input_html = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<script random=\"false\">hi2</script>"
	"<script src=\"1.js?a#12296;=en\"></script></body>");
	const GoogleString expected = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script random=\"true\" type=\"text/psajs\" orig_index=\"0\">"
	"hi1</script>",
	kUnrelatedTags,
	"<script random=\"false\" type=\"text/psajs\" orig_index=\"1\">"
	"hi2</script>"
	"<script src=\"1.js?a#12296;=en\" type=\"text/psajs\""
	" orig_index=\"2\"></script>"
	"<script type=\"text/javascript\" data-pagespeed-no-defer>",
	JsDisableFilter::kEnableJsExperimental,
	"</script></body>");

	ValidateExpected("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, AddsMetaTagForIE) {
	SetCurrentUserAgent("Mozilla/5.0 ( MSIE 10.0; Trident/5.0)");
	const GoogleString input_html = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script src=\"blah1\" random=\"true\">hi1</script>",
	kUnrelatedTags,
	"</body>");
	const GoogleString expected = StrCat(
	StrCat("<head>",
	kXUACompatibleMetaTag,
	"</head>"
	"<body>"),
	StrCat(kUnrelatedNoscriptTags,
	"<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
	" orig_index=\"0\">hi1</script>",
	kUnrelatedTags),
	"</body>");

	ValidateExpectedUrl("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, DisablesScriptWithMultipleTypeAttributes) {
	const GoogleString input_html = StrCat(
	kUnrelatedNoscriptTags,
	"<script src=\"x?a=b&c=d\" type='text/javascript' type='a' type='b'>"
	"hi1</script>",
	kUnrelatedTags);
	const GoogleString expected = StrCat(
	kUnrelatedNoscriptTags,
	"<script src=\"x?a=b&c=d\""
	" data-pagespeed-orig-type='text/javascript'"
	" type=\"text/psajs\" orig_index=\"0\">hi1</script>",
	kUnrelatedTags);

	ValidateExpectedUrl("http://example.com/", input_html, expected);
	}

	TEST_F(JsDisableFilterTest, ScriptWithPagespeedPrioritizeAttribute) {
	options()->set_enable_prioritizing_scripts(true);
	const GoogleString input_html = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script src=\"blah1\" random=\"true\">hi1</script>",
	kUnrelatedTags,
	"<img src=\"abc.jpg\" onload=\"foo1();foo2();\">"
	"<script src=\"blah2\" random=\"false\" data-pagespeed-prioritize>hi2"
	"</script>"
	"<script data-pagespeed-prioritize>hi5</script>"
	"</body>");
	const GoogleString expected = StrCat(
	"<body>",
	kUnrelatedNoscriptTags,
	"<script src=\"blah1\" random=\"true\" type=\"text/psajs\""
	" orig_index=\"0\">hi1</script>",
	kUnrelatedTags, StrCat(
	"<img src=\"abc.jpg\" data-pagespeed-onload=\"foo1();foo2();\" "
	"onload=\"", JsDisableFilter::kElementOnloadCode, "\">"
	"<script src=\"blah2\" random=\"false\" data-pagespeed-prioritize "
	"type=\"text/prioritypsajs\" orig_index=\"1\">"
	"hi2</script>"
	"<script data-pagespeed-prioritize type=\"text/prioritypsajs\" "
	"orig_index=\"2\">hi5</script>"
	"</body>"));
	ValidateExpectedUrl("http://example.com/", input_html, expected);
	}

	} // namespace net_instaweb