grit/gather/chrome_html_unittest.py - platform/external/chromium_org/tools/grit - Git at Google

 #!/usr/bin/env python
 # 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.

 '''Unit tests for grit.gather.chrome_html'''


 import os
 import re
 import sys
 if __name__ == '__main__':
   sys.path.append(os.path.join(os.path.dirname(__file__), '../..'))

 import unittest

 from grit import lazy_re
 from grit import util
 from grit.gather import chrome_html


 _NEW_LINE = lazy_re.compile('(\r\n|\r|\n)', re.MULTILINE)


 def StandardizeHtml(text):
   '''Standardizes the newline format and png mime type in Html text.'''
   return _NEW_LINE.sub('\n', text).replace('data:image/x-png;',
                                            'data:image/png;')


 class ChromeHtmlUnittest(unittest.TestCase):
   '''Unit tests for ChromeHtml.'''

   def testFileResources(self):
     '''Tests inlined image file resources with available high DPI assets.'''

     tmp_dir = util.TempDir({
       'index.html': '''
       <!DOCTYPE HTML>
       <html>
         <head>
           <link rel="stylesheet" href="test.css">
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       ''',

       'test.css': '''
       .image {
         background: url('test.png');
       }
       ''',

       'test.png': 'PNG DATA',

       '1.4x/test.png': '1.4x PNG DATA',

       '1.8x/test.png': '1.8x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
     html.SetDefines({'scale_factors': '1.4x,1.8x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       <!DOCTYPE HTML>
       <html>
         <head>
           <style>
       .image {
         background: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x, url('data:image/png;base64,MS40eCBQTkcgREFUQQ==') 1.4x, url('data:image/png;base64,MS44eCBQTkcgREFUQQ==') 1.8x);
       }
       </style>
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesImageTag(self):
     '''Tests inlined image file resources with available high DPI assets on
     an image tag.'''

     tmp_dir = util.TempDir({
       'index.html': '''
       <!DOCTYPE HTML>
       <html>
         <body>
           <img id="foo" src="test.png">
         </body>
       </html>
       ''',

       'test.png': 'PNG DATA',

       '2x/test.png': '2x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       <!DOCTYPE HTML>
       <html>
         <body>
           <img id="foo" src="data:image/png;base64,UE5HIERBVEE=" style="content: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x, url('data:image/png;base64,MnggUE5HIERBVEE=') 2x);">
         </body>
       </html>
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesNoFlatten(self):
     '''Tests non-inlined image file resources with available high DPI assets.'''

     tmp_dir = util.TempDir({
       'test.css': '''
       .image {
         background: url('test.png');
       }
       ''',

       'test.png': 'PNG DATA',

       '1.4x/test.png': '1.4x PNG DATA',

       '1.8x/test.png': '1.8x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
     html.SetDefines({'scale_factors': '1.4x,1.8x'})
     html.SetAttributes({'flattenhtml': 'false'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       .image {
         background: -webkit-image-set(url('test.png') 1x, url('1.4x/test.png') 1.4x, url('1.8x/test.png') 1.8x);
       }
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesDoubleQuotes(self):
     '''Tests inlined image file resources if url() filename is double quoted.'''

     tmp_dir = util.TempDir({
       'test.css': '''
       .image {
         background: url("test.png");
       }
       ''',

       'test.png': 'PNG DATA',

       '2x/test.png': '2x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       .image {
         background: -webkit-image-set(url("data:image/png;base64,UE5HIERBVEE=") 1x, url("data:image/png;base64,MnggUE5HIERBVEE=") 2x);
       }
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesNoQuotes(self):
     '''Tests inlined image file resources when url() filename is unquoted.'''

     tmp_dir = util.TempDir({
       'test.css': '''
       .image {
         background: url(test.png);
       }
       ''',

       'test.png': 'PNG DATA',

       '2x/test.png': '2x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       .image {
         background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
       }
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesNoFile(self):
     '''Tests inlined image file resources without available high DPI assets.'''

     tmp_dir = util.TempDir({
       'index.html': '''
       <!DOCTYPE HTML>
       <html>
         <head>
           <link rel="stylesheet" href="test.css">
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       ''',

       'test.css': '''
       .image {
         background: url('test.png');
       }
       ''',

       'test.png': 'PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       <!DOCTYPE HTML>
       <html>
         <head>
           <style>
       .image {
         background: url('data:image/png;base64,UE5HIERBVEE=');
       }
       </style>
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesMultipleBackgrounds(self):
     '''Tests inlined image file resources with two url()s.'''

     tmp_dir = util.TempDir({
       'test.css': '''
       .image {
         background: url(test.png), url(test.png);
       }
       ''',

       'test.png': 'PNG DATA',

       '2x/test.png': '2x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       .image {
         background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x), -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
       }
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesMultipleBackgroundsWithNewline1(self):
     '''Tests inlined image file resources with line break after first url().'''

     tmp_dir = util.TempDir({
       'test.css': '''
       .image {
         background: url(test.png),
                     url(test.png);
       }
       ''',

       'test.png': 'PNG DATA',

       '2x/test.png': '2x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       .image {
         background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x),
                     -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
       }
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesMultipleBackgroundsWithNewline2(self):
     '''Tests inlined image file resources with line break before first url()
     and before second url().'''

     tmp_dir = util.TempDir({
       'test.css': '''
       .image {
         background:
           url(test.png),
           url(test.png);
       }
       ''',

       'test.png': 'PNG DATA',

       '2x/test.png': '2x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       .image {
         background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x),
           -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
       }
       '''))
     tmp_dir.CleanUp()

   def testFileResourcesCRLF(self):
     '''Tests inlined image file resource when url() is preceded by a Windows
     style line break.'''

     tmp_dir = util.TempDir({
       'test.css': '''
       .image {
         background:\r\nurl(test.png);
       }
       ''',

       'test.png': 'PNG DATA',

       '2x/test.png': '2x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       .image {
         background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
       }
       '''))
     tmp_dir.CleanUp()

   def testThemeResources(self):
     '''Tests inserting high DPI chrome://theme references.'''

     tmp_dir = util.TempDir({
       'index.html': '''
       <!DOCTYPE HTML>
       <html>
         <head>
           <link rel="stylesheet" href="test.css">
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       ''',

       'test.css': '''
       .image {
         background: url('chrome://theme/IDR_RESOURCE_NAME');
         content: url('chrome://theme/IDR_RESOURCE_NAME_WITH_Q?$1');
       }
       ''',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
     html.SetDefines({'scale_factors': '2x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       <!DOCTYPE HTML>
       <html>
         <head>
           <style>
       .image {
         background: -webkit-image-set(url('chrome://theme/IDR_RESOURCE_NAME') 1x, url('chrome://theme/IDR_RESOURCE_NAME@2x') 2x);
         content: -webkit-image-set(url('chrome://theme/IDR_RESOURCE_NAME_WITH_Q?$1') 1x, url('chrome://theme/IDR_RESOURCE_NAME_WITH_Q@2x?$1') 2x);
       }
       </style>
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       '''))
     tmp_dir.CleanUp()

   def testRemoveUnsupportedScale(self):
     '''Tests removing an unsupported scale factor from an explicit image-set.'''

     tmp_dir = util.TempDir({
       'index.html': '''
       <!DOCTYPE HTML>
       <html>
         <head>
           <link rel="stylesheet" href="test.css">
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       ''',

       'test.css': '''
       .image {
         background: -webkit-image-set(url('test.png') 1x,
                                       url('test1.4.png') 1.4x,
                                       url('test1.8.png') 1.8x);
       }
       ''',

       'test.png': 'PNG DATA',

       'test1.4.png': '1.4x PNG DATA',

       'test1.8.png': '1.8x PNG DATA',
     })

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
     html.SetDefines({'scale_factors': '1.8x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       <!DOCTYPE HTML>
       <html>
         <head>
           <style>
       .image {
         background: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x,
                                       url('data:image/png;base64,MS44eCBQTkcgREFUQQ==') 1.8x);
       }
       </style>
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       '''))
     tmp_dir.CleanUp()

   def testExpandVariablesInFilename(self):
     '''
     Tests variable substitution in filenames while flattening images
     with multiple scale factors.
     '''

     tmp_dir = util.TempDir({
       'index.html': '''
       <!DOCTYPE HTML>
       <html>
         <head>
           <link rel="stylesheet" href="test.css">
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       ''',

       'test.css': '''
       .image {
         background: url('test[WHICH].png');
       }
       ''',

       'test1.png': 'PNG DATA',
       '1.4x/test1.png': '1.4x PNG DATA',
       '1.8x/test1.png': '1.8x PNG DATA',
     })

     def replacer(var, repl):
       return lambda filename: filename.replace('[%s]' % var, repl)

     html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
     html.SetDefines({'scale_factors': '1.4x,1.8x'})
     html.SetAttributes({'flattenhtml': 'true'})
     html.SetFilenameExpansionFunction(replacer('WHICH', '1'));
     html.Parse()
     self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
                          StandardizeHtml('''
       <!DOCTYPE HTML>
       <html>
         <head>
           <style>
       .image {
         background: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x, url('data:image/png;base64,MS40eCBQTkcgREFUQQ==') 1.4x, url('data:image/png;base64,MS44eCBQTkcgREFUQQ==') 1.8x);
       }
       </style>
         </head>
         <body>
           <!-- Don't need a body. -->
         </body>
       </html>
       '''))
     tmp_dir.CleanUp()


 if __name__ == '__main__':
   unittest.main()
	#!/usr/bin/env python
	# 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.

	'''Unit tests for grit.gather.chrome_html'''


	import os
	import re
	import sys
	if __name__ == '__main__':
	sys.path.append(os.path.join(os.path.dirname(__file__), '../..'))

	import unittest

	from grit import lazy_re
	from grit import util
	from grit.gather import chrome_html


	_NEW_LINE = lazy_re.compile('(\r\n\|\r\|\n)', re.MULTILINE)


	def StandardizeHtml(text):
	'''Standardizes the newline format and png mime type in Html text.'''
	return _NEW_LINE.sub('\n', text).replace('data:image/x-png;',
	'data:image/png;')


	class ChromeHtmlUnittest(unittest.TestCase):
	'''Unit tests for ChromeHtml.'''

	def testFileResources(self):
	'''Tests inlined image file resources with available high DPI assets.'''

	tmp_dir = util.TempDir({
	'index.html': '''
	<!DOCTYPE HTML>
	<html>
	<head>
	<link rel="stylesheet" href="test.css">
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	''',

	'test.css': '''
	.image {
	background: url('test.png');
	}
	''',

	'test.png': 'PNG DATA',

	'1.4x/test.png': '1.4x PNG DATA',

	'1.8x/test.png': '1.8x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
	html.SetDefines({'scale_factors': '1.4x,1.8x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	<!DOCTYPE HTML>
	<html>
	<head>
	<style>
	.image {
	background: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x, url('data:image/png;base64,MS40eCBQTkcgREFUQQ==') 1.4x, url('data:image/png;base64,MS44eCBQTkcgREFUQQ==') 1.8x);
	}
	</style>
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesImageTag(self):
	'''Tests inlined image file resources with available high DPI assets on
	an image tag.'''

	tmp_dir = util.TempDir({
	'index.html': '''
	<!DOCTYPE HTML>
	<html>
	<body>
	<img id="foo" src="test.png">
	</body>
	</html>
	''',

	'test.png': 'PNG DATA',

	'2x/test.png': '2x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	<!DOCTYPE HTML>
	<html>
	<body>
	<img id="foo" src="data:image/png;base64,UE5HIERBVEE=" style="content: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x, url('data:image/png;base64,MnggUE5HIERBVEE=') 2x);">
	</body>
	</html>
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesNoFlatten(self):
	'''Tests non-inlined image file resources with available high DPI assets.'''

	tmp_dir = util.TempDir({
	'test.css': '''
	.image {
	background: url('test.png');
	}
	''',

	'test.png': 'PNG DATA',

	'1.4x/test.png': '1.4x PNG DATA',

	'1.8x/test.png': '1.8x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
	html.SetDefines({'scale_factors': '1.4x,1.8x'})
	html.SetAttributes({'flattenhtml': 'false'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	.image {
	background: -webkit-image-set(url('test.png') 1x, url('1.4x/test.png') 1.4x, url('1.8x/test.png') 1.8x);
	}
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesDoubleQuotes(self):
	'''Tests inlined image file resources if url() filename is double quoted.'''

	tmp_dir = util.TempDir({
	'test.css': '''
	.image {
	background: url("test.png");
	}
	''',

	'test.png': 'PNG DATA',

	'2x/test.png': '2x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	.image {
	background: -webkit-image-set(url("data:image/png;base64,UE5HIERBVEE=") 1x, url("data:image/png;base64,MnggUE5HIERBVEE=") 2x);
	}
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesNoQuotes(self):
	'''Tests inlined image file resources when url() filename is unquoted.'''

	tmp_dir = util.TempDir({
	'test.css': '''
	.image {
	background: url(test.png);
	}
	''',

	'test.png': 'PNG DATA',

	'2x/test.png': '2x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	.image {
	background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
	}
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesNoFile(self):
	'''Tests inlined image file resources without available high DPI assets.'''

	tmp_dir = util.TempDir({
	'index.html': '''
	<!DOCTYPE HTML>
	<html>
	<head>
	<link rel="stylesheet" href="test.css">
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	''',

	'test.css': '''
	.image {
	background: url('test.png');
	}
	''',

	'test.png': 'PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	<!DOCTYPE HTML>
	<html>
	<head>
	<style>
	.image {
	background: url('data:image/png;base64,UE5HIERBVEE=');
	}
	</style>
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesMultipleBackgrounds(self):
	'''Tests inlined image file resources with two url()s.'''

	tmp_dir = util.TempDir({
	'test.css': '''
	.image {
	background: url(test.png), url(test.png);
	}
	''',

	'test.png': 'PNG DATA',

	'2x/test.png': '2x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	.image {
	background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x), -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
	}
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesMultipleBackgroundsWithNewline1(self):
	'''Tests inlined image file resources with line break after first url().'''

	tmp_dir = util.TempDir({
	'test.css': '''
	.image {
	background: url(test.png),
	url(test.png);
	}
	''',

	'test.png': 'PNG DATA',

	'2x/test.png': '2x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	.image {
	background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x),
	-webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
	}
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesMultipleBackgroundsWithNewline2(self):
	'''Tests inlined image file resources with line break before first url()
	and before second url().'''

	tmp_dir = util.TempDir({
	'test.css': '''
	.image {
	background:
	url(test.png),
	url(test.png);
	}
	''',

	'test.png': 'PNG DATA',

	'2x/test.png': '2x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	.image {
	background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x),
	-webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
	}
	'''))
	tmp_dir.CleanUp()

	def testFileResourcesCRLF(self):
	'''Tests inlined image file resource when url() is preceded by a Windows
	style line break.'''

	tmp_dir = util.TempDir({
	'test.css': '''
	.image {
	background:\r\nurl(test.png);
	}
	''',

	'test.png': 'PNG DATA',

	'2x/test.png': '2x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('test.css'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	.image {
	background: -webkit-image-set(url(data:image/png;base64,UE5HIERBVEE=) 1x, url(data:image/png;base64,MnggUE5HIERBVEE=) 2x);
	}
	'''))
	tmp_dir.CleanUp()

	def testThemeResources(self):
	'''Tests inserting high DPI chrome://theme references.'''

	tmp_dir = util.TempDir({
	'index.html': '''
	<!DOCTYPE HTML>
	<html>
	<head>
	<link rel="stylesheet" href="test.css">
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	''',

	'test.css': '''
	.image {
	background: url('chrome://theme/IDR_RESOURCE_NAME');
	content: url('chrome://theme/IDR_RESOURCE_NAME_WITH_Q?$1');
	}
	''',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
	html.SetDefines({'scale_factors': '2x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	<!DOCTYPE HTML>
	<html>
	<head>
	<style>
	.image {
	background: -webkit-image-set(url('chrome://theme/IDR_RESOURCE_NAME') 1x, url('chrome://theme/IDR_RESOURCE_NAME@2x') 2x);
	content: -webkit-image-set(url('chrome://theme/IDR_RESOURCE_NAME_WITH_Q?$1') 1x, url('chrome://theme/IDR_RESOURCE_NAME_WITH_Q@2x?$1') 2x);
	}
	</style>
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	'''))
	tmp_dir.CleanUp()

	def testRemoveUnsupportedScale(self):
	'''Tests removing an unsupported scale factor from an explicit image-set.'''

	tmp_dir = util.TempDir({
	'index.html': '''
	<!DOCTYPE HTML>
	<html>
	<head>
	<link rel="stylesheet" href="test.css">
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	''',

	'test.css': '''
	.image {
	background: -webkit-image-set(url('test.png') 1x,
	url('test1.4.png') 1.4x,
	url('test1.8.png') 1.8x);
	}
	''',

	'test.png': 'PNG DATA',

	'test1.4.png': '1.4x PNG DATA',

	'test1.8.png': '1.8x PNG DATA',
	})

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
	html.SetDefines({'scale_factors': '1.8x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	<!DOCTYPE HTML>
	<html>
	<head>
	<style>
	.image {
	background: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x,
	url('data:image/png;base64,MS44eCBQTkcgREFUQQ==') 1.8x);
	}
	</style>
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	'''))
	tmp_dir.CleanUp()

	def testExpandVariablesInFilename(self):
	'''
	Tests variable substitution in filenames while flattening images
	with multiple scale factors.
	'''

	tmp_dir = util.TempDir({
	'index.html': '''
	<!DOCTYPE HTML>
	<html>
	<head>
	<link rel="stylesheet" href="test.css">
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	''',

	'test.css': '''
	.image {
	background: url('test[WHICH].png');
	}
	''',

	'test1.png': 'PNG DATA',
	'1.4x/test1.png': '1.4x PNG DATA',
	'1.8x/test1.png': '1.8x PNG DATA',
	})

	def replacer(var, repl):
	return lambda filename: filename.replace('[%s]' % var, repl)

	html = chrome_html.ChromeHtml(tmp_dir.GetPath('index.html'))
	html.SetDefines({'scale_factors': '1.4x,1.8x'})
	html.SetAttributes({'flattenhtml': 'true'})
	html.SetFilenameExpansionFunction(replacer('WHICH', '1'));
	html.Parse()
	self.failUnlessEqual(StandardizeHtml(html.GetData('en', 'utf-8')),
	StandardizeHtml('''
	<!DOCTYPE HTML>
	<html>
	<head>
	<style>
	.image {
	background: -webkit-image-set(url('data:image/png;base64,UE5HIERBVEE=') 1x, url('data:image/png;base64,MS40eCBQTkcgREFUQQ==') 1.4x, url('data:image/png;base64,MS44eCBQTkcgREFUQQ==') 1.8x);
	}
	</style>
	</head>
	<body>
	<!-- Don't need a body. -->
	</body>
	</html>
	'''))
	tmp_dir.CleanUp()


	if __name__ == '__main__':
	unittest.main()