Python css.CssCompressor类代码示例

 def test_filename_in_debug_mode(self):
     # In debug mode, compressor should look for files using staticfiles
     # finders only, and not look into the global static directory, where
     # files can be outdated
     css_filename = os.path.join(settings.COMPRESS_ROOT, "css", "one.css")
     # Store the hash of the original file's content
     with open(css_filename) as f:
         css_content = f.read()
     hashed = get_hexdigest(css_content, 12)
     # Now modify the file in the STATIC_ROOT
     test_css_content = "p { font-family: 'test' }"
     with open(css_filename, "a") as css:
         css.write("\n")
         css.write(test_css_content)
     # We should generate a link with the hash of the original content, not
     # the modified one
     expected = '<link rel="stylesheet" href="/static/CACHE/css/%s.css" type="text/css" />' % hashed
     compressor = CssCompressor(self.css)
     compressor.storage = DefaultStorage()
     output = compressor.output()
     self.assertEqual(expected, output)
     with open(os.path.join(settings.COMPRESS_ROOT, "CACHE", "css",
                            "%s.css" % hashed), "r") as f:
         result = f.read()
     self.assertTrue(test_css_content not in result)

 def render(self, context, compress=settings.COMPRESS, offline=settings.OFFLINE):
     if compress and offline:
         key = get_offline_cachekey(self.nodelist)
         content = cache.get(key)
         if content:
             return content
     content = self.nodelist.render(context)
     if offline or not compress or not len(content.strip()):
         return content
     if self.kind == 'css':
         compressor = CssCompressor(content)
     if self.kind == 'js':
         compressor = JsCompressor(content)
     cachekey = "%s-%s" % (compressor.cachekey, self.mode)
     output = self.cache_get(cachekey)
     if output is None:
         try:
             if self.mode == OUTPUT_FILE:
                 output = compressor.output()
             else:
                 output = compressor.output_inline()
             self.cache_set(cachekey, output)
         except:
             from traceback import format_exc
             raise Exception(format_exc())
     return output

 def test_css_output_with_bom_input(self):
     out = 'body { background:#990; }\n.compress-test {color: red;}'
     css = ("""<link rel="stylesheet" href="/static/css/one.css" type="text/css" />
     <link rel="stylesheet" href="/static/css/utf-8_with-BOM.css" type="text/css" />""")
     css_node_with_bom = CssCompressor(css)
     hunks = '\n'.join([h for h in css_node_with_bom.hunks()])
     self.assertEqual(out, hunks)

    def test_css_hunks(self):
        hash_python_png = self.hashing_func(os.path.join(settings.COMPRESS_ROOT, 'img/python.png'))
        hash_add_png = self.hashing_func(os.path.join(settings.COMPRESS_ROOT, 'img/add.png'))

        css1 = """\
p { background: url('%(compress_url)simg/python.png?%(hash)s'); }
p { background: url(%(compress_url)simg/python.png?%(hash)s); }
p { background: url(%(compress_url)simg/python.png?%(hash)s); }
p { background: url('%(compress_url)simg/python.png?%(hash)s'); }
p { filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='%(compress_url)simg/python.png?%(hash)s'); }
""" % dict(compress_url=self.expected_url_prefix, hash=hash_python_png)

        css2 = """\
p { background: url('%(compress_url)simg/add.png?%(hash)s'); }
p { background: url(%(compress_url)simg/add.png?%(hash)s); }
p { background: url(%(compress_url)simg/add.png?%(hash)s); }
p { background: url('%(compress_url)simg/add.png?%(hash)s'); }
p { filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='%(compress_url)simg/add.png?%(hash)s'); }
""" % dict(compress_url=self.expected_url_prefix, hash=hash_add_png)

        css = """
        <link rel="stylesheet" href="/static/css/url/url1.css" type="text/css">
        <link rel="stylesheet" href="/static/css/url/2/url2.css" type="text/css">
        """
        css_node = CssCompressor(css)

        self.assertEqual([css1, css2], list(css_node.hunks()))

    def helper(self, enabled, use_precompiler, use_absolute_filter, expected_output):
        precompiler = (('text/css', 'compressor.tests.test_base.PassthroughPrecompiler'),) if use_precompiler else ()
        filters = ('compressor.filters.css_default.CssAbsoluteFilter',) if use_absolute_filter else ()

        with self.settings(COMPRESS_ENABLED=enabled, COMPRESS_PRECOMPILERS=precompiler, COMPRESS_CSS_FILTERS=filters):
            css_node = CssCompressor(self.html_orig)
            output = list(css_node.hunks())[0]
            self.assertEqual(output, expected_output)

class PostCompressSignalTestCase(TestCase):
    def setUp(self):
        settings.COMPRESS_ENABLED = True
        settings.COMPRESS_PRECOMPILERS = {}
        settings.COMPRESS_DEBUG_TOGGLE = 'nocompress'
        self.css = """\
<link rel="stylesheet" href="/static/css/one.css" type="text/css" />
<style type="text/css">p { border:5px solid green;}</style>
<link rel="stylesheet" href="/static/css/two.css" type="text/css" />"""
        self.css_node = CssCompressor(self.css)

        self.js = """\
<script src="/static/js/one.js" type="text/javascript"></script>
<script type="text/javascript">obj.value = "value";</script>"""
        self.js_node = JsCompressor(self.js)

    def tearDown(self):
        post_compress.disconnect()

    def test_js_signal_sent(self):
        def listener(sender, **kwargs):
            pass
        callback = Mock(wraps=listener)
        post_compress.connect(callback)
        self.js_node.output()
        args, kwargs = callback.call_args
        self.assertEquals(JsCompressor, kwargs['sender'])
        self.assertEquals('js', kwargs['type'])
        self.assertEquals('file', kwargs['mode'])
        context = kwargs['context']
        assert 'url' in context['compressed']

    def test_css_signal_sent(self):
        def listener(sender, **kwargs):
            pass
        callback = Mock(wraps=listener)
        post_compress.connect(callback)
        self.css_node.output()
        args, kwargs = callback.call_args
        self.assertEquals(CssCompressor, kwargs['sender'])
        self.assertEquals('css', kwargs['type'])
        self.assertEquals('file', kwargs['mode'])
        context = kwargs['context']
        assert 'url' in context['compressed']

    def test_css_signal_multiple_media_attributes(self):
        css = """\
<link rel="stylesheet" href="/static/css/one.css" media="handheld" type="text/css" />
<style type="text/css" media="print">p { border:5px solid green;}</style>
<link rel="stylesheet" href="/static/css/two.css" type="text/css" />"""
        css_node = CssCompressor(css)

        def listener(sender, **kwargs):
            pass
        callback = Mock(wraps=listener)
        post_compress.connect(callback)
        css_node.output()
        self.assertEquals(3, callback.call_count)

 def test_avoid_reordering_css(self):
     css = self.css + '<style type="text/css" media="print">p { border:10px solid red;}</style>'
     css_node = CssCompressor(css)
     media = ['screen', 'print', 'all', None, 'print']
     if six.PY3:
         links = make_soup(css_node.output()).find_all('link')
     else:
         links = make_soup(css_node.output()).findAll('link')
     self.assertEqual(media, [l.get('media', None) for l in links])

 def test_css_output(self):
     css_node = CssCompressor(self.css)
     if six.PY3:
         links = make_soup(css_node.output()).find_all('link')
     else:
         links = make_soup(css_node.output()).findAll('link')
     media = ['screen', 'print', 'all', None]
     self.assertEqual(len(links), 4)
     self.assertEqual(media, [l.get('media', None) for l in links])

    def test_passthough_when_compress_disabled(self):
        css = """\
<link rel="stylesheet" href="/static/css/one.css" type="text/css" media="screen">
<link rel="stylesheet" href="/static/css/two.css" type="text/css" media="screen">
<style type="text/foobar" media="screen">h1 { border:5px solid green;}</style>"""
        css_node = CssCompressor(css)
        output = make_soup(css_node.output()).find_all(['link', 'style'])
        self.assertEqual(['/static/css/one.css', '/static/css/two.css', None],
                         [l.get('href', None) for l in output])
        self.assertEqual(['screen', 'screen', 'screen'],
                         [l.get('media', None) for l in output])

 def test_precompiler_class_used(self):
     try:
         original_precompilers = settings.COMPRESS_PRECOMPILERS
         settings.COMPRESS_ENABLED = True
         settings.COMPRESS_PRECOMPILERS = (("text/foobar", "compressor.tests.test_base.TestPrecompiler"),)
         css = '<style type="text/foobar">p { border:10px solid red;}</style>'
         css_node = CssCompressor(css)
         output = BeautifulSoup(css_node.output("inline"))
         self.assertEqual(output.text, "OUTPUT")
     finally:
         settings.COMPRESS_PRECOMPILERS = original_precompilers

    def test_css_signal_multiple_media_attributes(self):
        css = """\
<link rel="stylesheet" href="/media/css/one.css" media="handheld" type="text/css" />
<style type="text/css" media="print">p { border:5px solid green;}</style>
<link rel="stylesheet" href="/media/css/two.css" type="text/css" />"""
        css_node = CssCompressor(css)
        def listener(sender, **kwargs):
            pass
        callback = Mock(wraps=listener)
        post_compress.connect(callback)
        css_node.output()
        self.assertEquals(3, callback.call_count)

 def test_css_single(self):
     css_node = CssCompressor("""<link rel="stylesheet" href="/media/css/one.css" type="text/css" />""")
     css_node.opts = {"group_first": "true"}
     out = [
         [
             SOURCE_FILE,
             os.path.join(settings.COMPRESS_ROOT, u"css", u"one.css"),
             u"css/one.css",
             u'<link rel="stylesheet" href="/media/css/one.css" type="text/css" />',
         ]
     ]
     split = css_node.group_contents()
     split = [[x[0], x[1], x[2], make_elems_str(self.css_node.parser, x[3])] for x in split]
     self.assertEqual(out, split)

    def test_passthough_when_compress_disabled(self):
        original_precompilers = settings.COMPRESS_PRECOMPILERS
        settings.COMPRESS_ENABLED = False
        settings.COMPRESS_PRECOMPILERS = (
            ("text/foobar", "python %s {infile} {outfile}" % os.path.join(test_dir, "precompiler.py")),
        )
        css = """\
<link rel="stylesheet" href="/media/css/one.css" type="text/css" media="screen">
<link rel="stylesheet" href="/media/css/two.css" type="text/css" media="screen">
<style type="text/foobar" media="screen">h1 { border:5px solid green;}</style>"""
        css_node = CssCompressor(css)
        output = BeautifulSoup(css_node.output()).findAll(["link", "style"])
        self.assertEqual([u"/media/css/one.css", u"/media/css/two.css", None], [l.get("href", None) for l in output])
        self.assertEqual([u"screen", u"screen", u"screen"], [l.get("media", None) for l in output])
        settings.COMPRESS_PRECOMPILERS = original_precompilers

class Html5LibParserTests(ParserTestCase, CompressorTestCase):
    parser_cls = 'compressor.parser.Html5LibParser'

    def setUp(self):
        super(Html5LibParserTests, self).setUp()
        # special version of the css since the parser sucks
        self.css = """\
<link href="/media/css/one.css" rel="stylesheet" type="text/css">
<style type="text/css">p { border:5px solid green;}</style>
<link href="/media/css/two.css" rel="stylesheet" type="text/css">"""
        self.css_node = CssCompressor(self.css)

    def test_css_split(self):
        out = [
            (SOURCE_FILE, os.path.join(settings.COMPRESS_ROOT, u'css', u'one.css'), u'css/one.css', u'<link href="/media/css/one.css" rel="stylesheet" type="text/css">'),
            (SOURCE_HUNK, u'p { border:5px solid green;}', None, u'<style type="text/css">p { border:5px solid green;}</style>'),
            (SOURCE_FILE, os.path.join(settings.COMPRESS_ROOT, u'css', u'two.css'), u'css/two.css', u'<link href="/media/css/two.css" rel="stylesheet" type="text/css">'),
        ]
        split = self.css_node.split_contents()
        split = [(x[0], x[1], x[2], self.css_node.parser.elem_str(x[3])) for x in split]
        self.assertEqual(out, split)

    def test_js_split(self):
        out = [
            (SOURCE_FILE, os.path.join(settings.COMPRESS_ROOT, u'js', u'one.js'), u'js/one.js', u'<script src="/media/js/one.js" type="text/javascript"></script>'),
            (SOURCE_HUNK, u'obj.value = "value";', None, u'<script type="text/javascript">obj.value = "value";</script>'),
        ]
        split = self.js_node.split_contents()
        split = [(x[0], x[1], x[2], self.js_node.parser.elem_str(x[3])) for x in split]
        self.assertEqual(out, split)

    def setUp(self):
        self.css = """\
<link rel="stylesheet" href="/media/css/one.css" type="text/css" media="screen">
<style type="text/css" media="print">p { border:5px solid green;}</style>
<link rel="stylesheet" href="/media/css/two.css" type="text/css" media="all">
<style type="text/css">h1 { border:5px solid green;}</style>"""
        self.css_node = CssCompressor(self.css)