ios/web/webui/crw_web_ui_page_builder_unittest.mm - chromium/src.git - Git at Google

 // Copyright 2015 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 "ios/web/webui/crw_web_ui_page_builder.h"

 #import <Foundation/Foundation.h>

 #include "base/logging.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/gtest_mac.h"
 #include "testing/platform_test.h"
 #include "url/gurl.h"

 namespace {

 // HTML page template.
 NSString* const kPageTemplate = @"<html><head>%@</head></html>";

 // URL for BuildSimplePage.
 const char* kSimplePageUrl("http://simplepage");
 // URL for BuildPageWithJSSubresource.
 const char* kJsPageUrl("http://javascriptpage");
 // URL for BuildPageWithCSSSubresource.
 const char* kCssPageUrl("http://csspage");
 // URL for BuildPageWithMultipleSubresources.
 const char* kMultipleResourcesPageUrl("http://multipleresourcespage");
 // URL for BuildPageWithCSSNestedSubresources.
 const char* kCssImportPageUrl("http://csspagewithimport");
 // URL for BuildPageWithRelativeSubresource.
 const char* kCssRelativePageUrl("http://css/csspage.html");
 // URL for BuildPageWithWebUIJS.
 const char* kCoreJsPageUrl("http://corejs");

 // URL for JS resource.
 const char* kJsResourceUrl("http://javascriptpage/resources/javascript.js");
 // URL for CSS resource.
 const char* kCssResourceUrl("http://csspage/resources/stylesheet.css");
 // URL for CSS resource with import.
 const char* kCssImportResourceUrl("http://csspage/resources/import.css");
 // Chrome URL for messaging JavaScript.
 const char* kCoreJsResourceUrl("chrome://resources/js/ios/web_ui.js");
 // String for relative resource URL.
 const char* kRelativeCssString("myresource.css");

 // Template for JS tag with URL.
 NSString* const kJsTagTemplate = @"<script src=\"%@\"></script>";
 // Template for inlined JS tag.
 NSString* const kJsInlinedTemplate = @"<script>%@</script>";
 // Template for CSS tag with URL.
 NSString* const kCssTagTemplate = @"<link rel=\"stylesheet\" href=\"%@\">";
 // Template for inlined CSS tag.
 NSString* const kCssInlinedTemplate = @"<style>%@</style>";
 // Template for CSS with import statement.
 NSString* const kCssImportTemplate = @"@import url(%@); b {diplay:block;}";

 // Content for JS resource.
 NSString* const kJsContent = @"console.log('This is JavaScript');";
 // Content for CSS resource.
 NSString* const kCssContent = @"html {height:100%;}";
 // Content for relative CSS resource.
 NSString* const kRelativeCssContent = @"mytag {someprop:1}";
 // Dummy content for WebUI messaging JavaScript.
 NSString* kCoreJsContent = @"console.log('messaging javascript');";

 // Returns HTML string containing tag formed with tag_template and content.
 NSString* PageForTagTemplateAndContent(NSString* tag_template,
                                        NSString* content) {
   NSString* tag = [NSString stringWithFormat:tag_template, content];
   return [NSString stringWithFormat:kPageTemplate, tag];
 }

 }  // namespace

 // Mock subclass of CRWWebUIPageBuilder for testing.
 @interface MockCRWWebUIPageBuilder : CRWWebUIPageBuilder
 // Stub out webUIJavaScript method so resource bundle access is not needed.
 - (NSString*)webUIJavaScript;
 @end

 @implementation MockCRWWebUIPageBuilder
 - (NSString*)webUIJavaScript {
   return kCoreJsContent;
 }
 @end

 // Mock CRWWebUIPageBuilderDelegate to serve responses for resource requests.
 @interface MockPageBuilderDelegate : NSObject<CRWWebUIPageBuilderDelegate>
 // Returns HTML page containing tag formed from tagTemplate and URL.
 - (NSString*)pageWithTagTemplate:(NSString*)tagTemplate URL:(const char*)URL;
 // Returns resource string for resourceURL.
 - (NSString*)resourceForURL:(const GURL&)resourceURL;
 @end

 @implementation MockPageBuilderDelegate

 - (void)webUIPageBuilder:(CRWWebUIPageBuilder*)webUIPageBuilder
     fetchResourceWithURL:(const GURL&)resourceURL
        completionHandler:(web::WebUIDelegateCompletion)completionHandler {
   completionHandler([self resourceForURL:resourceURL], resourceURL);
 }

 - (NSString*)resourceForURL:(const GURL&)resourceURL {
   // Resource for BuildSimplePage.
   if (resourceURL == GURL(kSimplePageUrl))
     return [NSString stringWithFormat:kPageTemplate, @""];
   // Resources for BuildPageWithJSSubresource.
   if (resourceURL == GURL(kJsPageUrl))
     return [self pageWithTagTemplate:kJsTagTemplate URL:kJsResourceUrl];
   if (resourceURL == GURL(kJsResourceUrl))
     return kJsContent;
   // Resources for BuildPageWithCSSSubresource.
   if (resourceURL == GURL(kCssPageUrl))
     return [self pageWithTagTemplate:kCssTagTemplate URL:kCssResourceUrl];
   if (resourceURL == GURL(kCssResourceUrl))
     return kCssContent;
   // Resource for BuildPageWithMultipleSubresources.
   if (resourceURL == GURL(kMultipleResourcesPageUrl)) {
     NSString* JSTag =
         [NSString stringWithFormat:kJsTagTemplate,
                                    base::SysUTF8ToNSString(kJsResourceUrl)];
     NSString* CSSTag =
         [NSString stringWithFormat:kCssTagTemplate,
                                    base::SysUTF8ToNSString(kCssResourceUrl)];
     NSString* CoreJSTag =
         [NSString stringWithFormat:kJsTagTemplate,
                                    base::SysUTF8ToNSString(kCoreJsResourceUrl)];
     NSString* tags = [[JSTag stringByAppendingString:CSSTag]
         stringByAppendingString:CoreJSTag];
     return [NSString stringWithFormat:kPageTemplate, tags];
   }
   // Resources for BuildPageWithCSSNestedSubresource.
   if (resourceURL == GURL(kCssImportPageUrl)) {
     return [self pageWithTagTemplate:kCssTagTemplate URL:kCssImportResourceUrl];
   }
   if (resourceURL == GURL(kCssImportResourceUrl)) {
     return [NSString stringWithFormat:kCssImportTemplate,
                                       base::SysUTF8ToNSString(kCssResourceUrl)];
   }
   // Resources for BuildPageWithRelativeSubresource.
   GURL relativePageURL(kCssRelativePageUrl);
   GURL cssRelativeResourceURL = relativePageURL.Resolve(kRelativeCssString);
   if (resourceURL == relativePageURL) {
     return [self pageWithTagTemplate:kCssTagTemplate URL:kRelativeCssString];
   }
   if (resourceURL == cssRelativeResourceURL)
     return kRelativeCssContent;
   // Resource for BuildPageWithWebUIJS.
   if (resourceURL == GURL(kCoreJsPageUrl))
     return [self pageWithTagTemplate:kJsTagTemplate URL:kCoreJsResourceUrl];

   NOTREACHED();
   return nil;
 }

 - (NSString*)pageWithTagTemplate:(NSString*)tagTemplate URL:(const char*)URL {
   NSString* URLString = base::SysUTF8ToNSString(URL);
   NSString* tag = [NSString stringWithFormat:tagTemplate, URLString];
   return [NSString stringWithFormat:kPageTemplate, tag];
 }

 @end

 namespace web {

 class CRWWebUIPageBuilderTest : public PlatformTest {
  protected:
   void SetUp() override {
     PlatformTest::SetUp();
     delegate_.reset([[MockPageBuilderDelegate alloc] init]);
     web_ui_page_builder_.reset(
         [[MockCRWWebUIPageBuilder alloc] initWithDelegate:delegate_]);
   }
   // CRWWebUIPageBuilder for testing.
   base::scoped_nsobject<MockCRWWebUIPageBuilder> web_ui_page_builder_;
   // Delegate for test CRWWebUIPageBuilder.
   base::scoped_nsobject<MockPageBuilderDelegate> delegate_;
 };

 // Tests that a page without imports is passed to completion handler unchanged.
 TEST_F(CRWWebUIPageBuilderTest, BuildSimplePage) {
   NSString* simple_page_html = [NSString stringWithFormat:kPageTemplate, @""];
   [web_ui_page_builder_ buildWebUIPageForURL:GURL(kSimplePageUrl)
                            completionHandler:^(NSString* result) {
                              EXPECT_NSEQ(simple_page_html, result);
                            }];
 }

 // Tests that a page with a JavaScript subresource is passed to the completion
 // handler with the resource inlined properly, i.e. <script
 // src="http://somejs.js"></script> becomes <script>some javascript;</script>.
 TEST_F(CRWWebUIPageBuilderTest, BuildPageWithJSSubresource) {
   NSString* js_page_html =
       PageForTagTemplateAndContent(kJsInlinedTemplate, kJsContent);
   web::WebUIPageCompletion completionHandler = ^(NSString* result) {
     EXPECT_NSEQ(js_page_html, result);
   };
   [web_ui_page_builder_ buildWebUIPageForURL:GURL(kJsPageUrl)
                            completionHandler:completionHandler];
 }

 // Tests that a page with a CSS subresource is passed to the completion handler
 // with the resource inlined properly, i.e. <link rel="stylesheet"
 // href="http://somecss.css"/> becomes <style>some css</style>.
 TEST_F(CRWWebUIPageBuilderTest, BuildPageWithCSSSubresource) {
   NSString* css_page_html =
       PageForTagTemplateAndContent(kCssInlinedTemplate, kCssContent);
   [web_ui_page_builder_ buildWebUIPageForURL:GURL(kCssPageUrl)
                            completionHandler:^(NSString* result) {
                              EXPECT_NSEQ(css_page_html, result);
                            }];
 }

 TEST_F(CRWWebUIPageBuilderTest, BuildPageWithMultipleSubresources) {
   NSString* js_tag = [NSString stringWithFormat:kJsInlinedTemplate, kJsContent];
   NSString* css_tag =
       [NSString stringWithFormat:kCssInlinedTemplate, kCssContent];
   NSString* core_js_tag =
       [NSString stringWithFormat:kJsInlinedTemplate, kCoreJsContent];
   NSString* tags = [[js_tag stringByAppendingString:css_tag]
       stringByAppendingString:core_js_tag];
   NSString* multiple_resources_html =
       [NSString stringWithFormat:kPageTemplate, tags];
   [web_ui_page_builder_ buildWebUIPageForURL:GURL(kMultipleResourcesPageUrl)
                            completionHandler:^(NSString* result) {
                              EXPECT_NSEQ(multiple_resources_html, result);
                            }];
 }

 // Tests that a page with a CSS subresource that contains an @import statement
 // for another CSS subresource is passed to the completion handler with the
 // resource inlined properly, i.e. if somecss.css from above has the statement
 // @import url(morecss.css), the original tag becomes <style>contents of
 // morecss</style><style>some css</style>.
 TEST_F(CRWWebUIPageBuilderTest, BuildPageWithCSSNestedSubresource) {
   NSString* css_inlined_tag =
       [NSString stringWithFormat:kCssInlinedTemplate, kCssContent];
   NSString* css_inlined_content =
       [NSString stringWithFormat:kCssImportTemplate,
                                  base::SysUTF8ToNSString(kCssResourceUrl)];
   NSString* css_import_inlined_tag =
       [NSString stringWithFormat:kCssInlinedTemplate, css_inlined_content];
   NSString* tags =
       [css_inlined_tag stringByAppendingString:css_import_inlined_tag];
   NSString* css_import_page_html =
       [NSString stringWithFormat:kPageTemplate, tags];
   [web_ui_page_builder_ buildWebUIPageForURL:GURL(kCssImportPageUrl)
                            completionHandler:^(NSString* result) {
                              EXPECT_NSEQ(css_import_page_html, result);
                            }];
 }

 // Tests that a page with a relative subresource is properly resolved.
 TEST_F(CRWWebUIPageBuilderTest, BuildPageWithRelativeSubresource) {
   NSString* css_page_html =
       PageForTagTemplateAndContent(kCssInlinedTemplate, kRelativeCssContent);
   [web_ui_page_builder_ buildWebUIPageForURL:GURL(kCssRelativePageUrl)
                            completionHandler:^(NSString* result) {
                              EXPECT_NSEQ(css_page_html, result);
                            }];
 }

 // Tests that the JavaScript for connecting WebUI messaging to web controller
 // messaging is properly inlined.
 TEST_F(CRWWebUIPageBuilderTest, BuildPageWithWebUIJS) {
   NSString* core_js_html =
       PageForTagTemplateAndContent(kJsInlinedTemplate, kCoreJsContent);
   [web_ui_page_builder_ buildWebUIPageForURL:GURL(kCoreJsPageUrl)
                            completionHandler:^(NSString* result) {
                              EXPECT_NSEQ(core_js_html, result);
                            }];
 }

 }  //  namespace web
	// Copyright 2015 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 "ios/web/webui/crw_web_ui_page_builder.h"

	#import <Foundation/Foundation.h>

	#include "base/logging.h"
	#import "base/mac/scoped_nsobject.h"
	#include "base/strings/sys_string_conversions.h"
	#include "testing/gtest/include/gtest/gtest.h"
	#include "testing/gtest_mac.h"
	#include "testing/platform_test.h"
	#include "url/gurl.h"

	namespace {

	// HTML page template.
	NSString* const kPageTemplate = @"<html><head>%@</head></html>";

	// URL for BuildSimplePage.
	const char* kSimplePageUrl("http://simplepage");
	// URL for BuildPageWithJSSubresource.
	const char* kJsPageUrl("http://javascriptpage");
	// URL for BuildPageWithCSSSubresource.
	const char* kCssPageUrl("http://csspage");
	// URL for BuildPageWithMultipleSubresources.
	const char* kMultipleResourcesPageUrl("http://multipleresourcespage");
	// URL for BuildPageWithCSSNestedSubresources.
	const char* kCssImportPageUrl("http://csspagewithimport");
	// URL for BuildPageWithRelativeSubresource.
	const char* kCssRelativePageUrl("http://css/csspage.html");
	// URL for BuildPageWithWebUIJS.
	const char* kCoreJsPageUrl("http://corejs");

	// URL for JS resource.
	const char* kJsResourceUrl("http://javascriptpage/resources/javascript.js");
	// URL for CSS resource.
	const char* kCssResourceUrl("http://csspage/resources/stylesheet.css");
	// URL for CSS resource with import.
	const char* kCssImportResourceUrl("http://csspage/resources/import.css");
	// Chrome URL for messaging JavaScript.
	const char* kCoreJsResourceUrl("chrome://resources/js/ios/web_ui.js");
	// String for relative resource URL.
	const char* kRelativeCssString("myresource.css");

	// Template for JS tag with URL.
	NSString* const kJsTagTemplate = @"<script src=\"%@\"></script>";
	// Template for inlined JS tag.
	NSString* const kJsInlinedTemplate = @"<script>%@</script>";
	// Template for CSS tag with URL.
	NSString* const kCssTagTemplate = @"<link rel=\"stylesheet\" href=\"%@\">";
	// Template for inlined CSS tag.
	NSString* const kCssInlinedTemplate = @"<style>%@</style>";
	// Template for CSS with import statement.
	NSString* const kCssImportTemplate = @"@import url(%@); b {diplay:block;}";

	// Content for JS resource.
	NSString* const kJsContent = @"console.log('This is JavaScript');";
	// Content for CSS resource.
	NSString* const kCssContent = @"html {height:100%;}";
	// Content for relative CSS resource.
	NSString* const kRelativeCssContent = @"mytag {someprop:1}";
	// Dummy content for WebUI messaging JavaScript.
	NSString* kCoreJsContent = @"console.log('messaging javascript');";

	// Returns HTML string containing tag formed with tag_template and content.
	NSString* PageForTagTemplateAndContent(NSString* tag_template,
	NSString* content) {
	NSString* tag = [NSString stringWithFormat:tag_template, content];
	return [NSString stringWithFormat:kPageTemplate, tag];
	}

	} // namespace

	// Mock subclass of CRWWebUIPageBuilder for testing.
	@interface MockCRWWebUIPageBuilder : CRWWebUIPageBuilder
	// Stub out webUIJavaScript method so resource bundle access is not needed.
	- (NSString*)webUIJavaScript;
	@end

	@implementation MockCRWWebUIPageBuilder
	- (NSString*)webUIJavaScript {
	return kCoreJsContent;
	}
	@end

	// Mock CRWWebUIPageBuilderDelegate to serve responses for resource requests.
	@interface MockPageBuilderDelegate : NSObject<CRWWebUIPageBuilderDelegate>
	// Returns HTML page containing tag formed from tagTemplate and URL.
	- (NSString)pageWithTagTemplate:(NSString)tagTemplate URL:(const char*)URL;
	// Returns resource string for resourceURL.
	- (NSString*)resourceForURL:(const GURL&)resourceURL;
	@end

	@implementation MockPageBuilderDelegate

	- (void)webUIPageBuilder:(CRWWebUIPageBuilder*)webUIPageBuilder
	fetchResourceWithURL:(const GURL&)resourceURL
	completionHandler:(web::WebUIDelegateCompletion)completionHandler {
	completionHandler([self resourceForURL:resourceURL], resourceURL);
	}

	- (NSString*)resourceForURL:(const GURL&)resourceURL {
	// Resource for BuildSimplePage.
	if (resourceURL == GURL(kSimplePageUrl))
	return [NSString stringWithFormat:kPageTemplate, @""];
	// Resources for BuildPageWithJSSubresource.
	if (resourceURL == GURL(kJsPageUrl))
	return [self pageWithTagTemplate:kJsTagTemplate URL:kJsResourceUrl];
	if (resourceURL == GURL(kJsResourceUrl))
	return kJsContent;
	// Resources for BuildPageWithCSSSubresource.
	if (resourceURL == GURL(kCssPageUrl))
	return [self pageWithTagTemplate:kCssTagTemplate URL:kCssResourceUrl];
	if (resourceURL == GURL(kCssResourceUrl))
	return kCssContent;
	// Resource for BuildPageWithMultipleSubresources.
	if (resourceURL == GURL(kMultipleResourcesPageUrl)) {
	NSString* JSTag =
	[NSString stringWithFormat:kJsTagTemplate,
	base::SysUTF8ToNSString(kJsResourceUrl)];
	NSString* CSSTag =
	[NSString stringWithFormat:kCssTagTemplate,
	base::SysUTF8ToNSString(kCssResourceUrl)];
	NSString* CoreJSTag =
	[NSString stringWithFormat:kJsTagTemplate,
	base::SysUTF8ToNSString(kCoreJsResourceUrl)];
	NSString* tags = [[JSTag stringByAppendingString:CSSTag]
	stringByAppendingString:CoreJSTag];
	return [NSString stringWithFormat:kPageTemplate, tags];
	}
	// Resources for BuildPageWithCSSNestedSubresource.
	if (resourceURL == GURL(kCssImportPageUrl)) {
	return [self pageWithTagTemplate:kCssTagTemplate URL:kCssImportResourceUrl];
	}
	if (resourceURL == GURL(kCssImportResourceUrl)) {
	return [NSString stringWithFormat:kCssImportTemplate,
	base::SysUTF8ToNSString(kCssResourceUrl)];
	}
	// Resources for BuildPageWithRelativeSubresource.
	GURL relativePageURL(kCssRelativePageUrl);
	GURL cssRelativeResourceURL = relativePageURL.Resolve(kRelativeCssString);
	if (resourceURL == relativePageURL) {
	return [self pageWithTagTemplate:kCssTagTemplate URL:kRelativeCssString];
	}
	if (resourceURL == cssRelativeResourceURL)
	return kRelativeCssContent;
	// Resource for BuildPageWithWebUIJS.
	if (resourceURL == GURL(kCoreJsPageUrl))
	return [self pageWithTagTemplate:kJsTagTemplate URL:kCoreJsResourceUrl];

	NOTREACHED();
	return nil;
	}

	- (NSString)pageWithTagTemplate:(NSString)tagTemplate URL:(const char*)URL {
	NSString* URLString = base::SysUTF8ToNSString(URL);
	NSString* tag = [NSString stringWithFormat:tagTemplate, URLString];
	return [NSString stringWithFormat:kPageTemplate, tag];
	}

	@end

	namespace web {

	class CRWWebUIPageBuilderTest : public PlatformTest {
	protected:
	void SetUp() override {
	PlatformTest::SetUp();
	delegate_.reset([[MockPageBuilderDelegate alloc] init]);
	web_ui_page_builder_.reset(
	[[MockCRWWebUIPageBuilder alloc] initWithDelegate:delegate_]);
	}
	// CRWWebUIPageBuilder for testing.
	base::scoped_nsobject<MockCRWWebUIPageBuilder> web_ui_page_builder_;
	// Delegate for test CRWWebUIPageBuilder.
	base::scoped_nsobject<MockPageBuilderDelegate> delegate_;
	};

	// Tests that a page without imports is passed to completion handler unchanged.
	TEST_F(CRWWebUIPageBuilderTest, BuildSimplePage) {
	NSString* simple_page_html = [NSString stringWithFormat:kPageTemplate, @""];
	[web_ui_page_builder_ buildWebUIPageForURL:GURL(kSimplePageUrl)
	completionHandler:^(NSString* result) {
	EXPECT_NSEQ(simple_page_html, result);
	}];
	}

	// Tests that a page with a JavaScript subresource is passed to the completion
	// handler with the resource inlined properly, i.e. <script
	// src="http://somejs.js"></script> becomes <script>some javascript;</script>.
	TEST_F(CRWWebUIPageBuilderTest, BuildPageWithJSSubresource) {
	NSString* js_page_html =
	PageForTagTemplateAndContent(kJsInlinedTemplate, kJsContent);
	web::WebUIPageCompletion completionHandler = ^(NSString* result) {
	EXPECT_NSEQ(js_page_html, result);
	};
	[web_ui_page_builder_ buildWebUIPageForURL:GURL(kJsPageUrl)
	completionHandler:completionHandler];
	}

	// Tests that a page with a CSS subresource is passed to the completion handler
	// with the resource inlined properly, i.e. <link rel="stylesheet"
	// href="http://somecss.css"/> becomes <style>some css</style>.
	TEST_F(CRWWebUIPageBuilderTest, BuildPageWithCSSSubresource) {
	NSString* css_page_html =
	PageForTagTemplateAndContent(kCssInlinedTemplate, kCssContent);
	[web_ui_page_builder_ buildWebUIPageForURL:GURL(kCssPageUrl)
	completionHandler:^(NSString* result) {
	EXPECT_NSEQ(css_page_html, result);
	}];
	}

	TEST_F(CRWWebUIPageBuilderTest, BuildPageWithMultipleSubresources) {
	NSString* js_tag = [NSString stringWithFormat:kJsInlinedTemplate, kJsContent];
	NSString* css_tag =
	[NSString stringWithFormat:kCssInlinedTemplate, kCssContent];
	NSString* core_js_tag =
	[NSString stringWithFormat:kJsInlinedTemplate, kCoreJsContent];
	NSString* tags = [[js_tag stringByAppendingString:css_tag]
	stringByAppendingString:core_js_tag];
	NSString* multiple_resources_html =
	[NSString stringWithFormat:kPageTemplate, tags];
	[web_ui_page_builder_ buildWebUIPageForURL:GURL(kMultipleResourcesPageUrl)
	completionHandler:^(NSString* result) {
	EXPECT_NSEQ(multiple_resources_html, result);
	}];
	}

	// Tests that a page with a CSS subresource that contains an @import statement
	// for another CSS subresource is passed to the completion handler with the
	// resource inlined properly, i.e. if somecss.css from above has the statement
	// @import url(morecss.css), the original tag becomes <style>contents of
	// morecss</style><style>some css</style>.
	TEST_F(CRWWebUIPageBuilderTest, BuildPageWithCSSNestedSubresource) {
	NSString* css_inlined_tag =
	[NSString stringWithFormat:kCssInlinedTemplate, kCssContent];
	NSString* css_inlined_content =
	[NSString stringWithFormat:kCssImportTemplate,
	base::SysUTF8ToNSString(kCssResourceUrl)];
	NSString* css_import_inlined_tag =
	[NSString stringWithFormat:kCssInlinedTemplate, css_inlined_content];
	NSString* tags =
	[css_inlined_tag stringByAppendingString:css_import_inlined_tag];
	NSString* css_import_page_html =
	[NSString stringWithFormat:kPageTemplate, tags];
	[web_ui_page_builder_ buildWebUIPageForURL:GURL(kCssImportPageUrl)
	completionHandler:^(NSString* result) {
	EXPECT_NSEQ(css_import_page_html, result);
	}];
	}

	// Tests that a page with a relative subresource is properly resolved.
	TEST_F(CRWWebUIPageBuilderTest, BuildPageWithRelativeSubresource) {
	NSString* css_page_html =
	PageForTagTemplateAndContent(kCssInlinedTemplate, kRelativeCssContent);
	[web_ui_page_builder_ buildWebUIPageForURL:GURL(kCssRelativePageUrl)
	completionHandler:^(NSString* result) {
	EXPECT_NSEQ(css_page_html, result);
	}];
	}

	// Tests that the JavaScript for connecting WebUI messaging to web controller
	// messaging is properly inlined.
	TEST_F(CRWWebUIPageBuilderTest, BuildPageWithWebUIJS) {
	NSString* core_js_html =
	PageForTagTemplateAndContent(kJsInlinedTemplate, kCoreJsContent);
	[web_ui_page_builder_ buildWebUIPageForURL:GURL(kCoreJsPageUrl)
	completionHandler:^(NSString* result) {
	EXPECT_NSEQ(core_js_html, result);
	}];
	}

	} // namespace web