gvsig-scripting / org.gvsig.scripting / trunk / org.gvsig.scripting / org.gvsig.scripting.app / org.gvsig.scripting.app.mainplugin / src / main / resources-plugin / scripting / lib / cssutils / tests / test_codec.py @ 475
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"""Testcases for cssutils.codec"""
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import codecs |
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import unittest |
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import sys |
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PY2x = sys.version_info < (3,0) |
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if PY2x:
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import StringIO |
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iostream = StringIO.StringIO |
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else:
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import io |
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iostream = io.BytesIO |
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from cssutils import codec |
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try:
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codecs.lookup("utf-32")
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except LookupError: |
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haveutf32 = False
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else:
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haveutf32 = True
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class Queue(object): |
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"""
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queue: write bytes at one end, read bytes from the other end
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"""
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def __init__(self): |
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self._buffer = "".encode() |
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def write(self, chars): |
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# TODO ???
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if not PY2x: |
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if isinstance(chars, str): |
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chars = chars.encode() |
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elif isinstance(chars, int): |
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chars = bytes([chars])
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self._buffer += chars
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def read(self, size=-1): |
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if size<0: |
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s = self._buffer
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self._buffer = "".encode() |
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return s
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else:
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s = self._buffer[:size]
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self._buffer = self._buffer[size:] |
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return s
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class CodecTestCase(unittest.TestCase): |
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def test_detectencoding_str(self): |
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"codec.detectencoding_str()"
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self.assertEqual(codec.detectencoding_str(u''.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\xef'.encode('latin1')), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\xef\x33'.encode("utf-8")), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'\xc3\xaf3'.encode("utf-8")), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'\xef\xbb'.encode("latin1")), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\xef\xbb\x33'.encode("utf-8")), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'\xef\xbb\xbf'.encode("utf-8-sig")), ("utf-8-sig", True)) |
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self.assertEqual(codec.detectencoding_str(u'\xff'.encode("latin1")), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\xff\x33'.encode("utf-8")), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'\xff\xfe'.encode("latin1")), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\xff\xfe\x33'.encode("utf-16")), ("utf-16", True)) |
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self.assertEqual(codec.detectencoding_str(u'\xff\xfe\x00'.encode("latin1")), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\xff\xfe\x00\x33'.encode("utf-16")), ("utf-16", True)) |
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if haveutf32:
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self.assertEqual(codec.detectencoding_str(u'\xff\xfe\x00\x00'.encode("utf-32")), ("utf-32", True)) |
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self.assertEqual(codec.detectencoding_str(u'\x00'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\x00\x33'.encode()), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'\x00\x00'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\x00\x00\x33'.encode()), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'\x00\x00\xfe'.encode('latin1')), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'\x00\x00\x00\x33'.encode()), ("utf-8", False)) |
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if haveutf32:
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self.assertEqual(codec.detectencoding_str(u'\x00\x00\x00@'.encode()), ("utf-32-be", False)) |
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self.assertEqual(codec.detectencoding_str(u'\x00\x00\xfe\xff'.encode('utf-32')), ("utf-32", True)) |
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self.assertEqual(codec.detectencoding_str(u'@'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@\x33'.encode()), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'@\x00'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@\x00\x33'.encode()), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u'@\x00\x00'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@\x00\x00\x33'.encode()), ("utf-8", False)) |
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if haveutf32:
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self.assertEqual(codec.detectencoding_str(u'@\x00\x00\x00'.encode()), ("utf-32-le", False)) |
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self.assertEqual(codec.detectencoding_str(u'@c'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@ch'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@cha'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@char'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@chars'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@charse'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@charset'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@charset '.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@charset "'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@charset "x'.encode()), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u'@charset ""'.encode()), ("", True)) |
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self.assertEqual(codec.detectencoding_str(u'@charset "x"'.encode()), ("x", True)) |
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self.assertEqual(codec.detectencoding_str(u"@".encode(), False), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u"@".encode(), True), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_str(u"@c".encode(), False), (None, False)) |
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self.assertEqual(codec.detectencoding_str(u"@c".encode(), True), ("utf-8", False)) |
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def test_detectencoding_unicode(self): |
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"codec.detectencoding_unicode()"
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# Unicode version (only parses the header)
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self.assertEqual(codec.detectencoding_unicode(u'@charset "x'), (None, False)) |
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self.assertEqual(codec.detectencoding_unicode(u'a {}'), ("utf-8", False)) |
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self.assertEqual(codec.detectencoding_unicode(u'@charset "x', True), (None, False)) |
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self.assertEqual(codec.detectencoding_unicode(u'@charset "x"'), ("x", True)) |
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def test_fixencoding(self): |
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"codec._fixencoding()"
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s = u'@charset "'
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self.assertTrue(codec._fixencoding(s, u"utf-8") is None) |
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s = u'@charset "x'
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self.assertTrue(codec._fixencoding(s, u"utf-8") is None) |
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s = u'@charset "x'
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self.assertEqual(codec._fixencoding(s, u"utf-8", True), s) |
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s = u'@charset x'
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self.assertEqual(codec._fixencoding(s, u"utf-8"), s) |
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s = u'@charset "x"'
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self.assertEqual(codec._fixencoding(s, u"utf-8"), s.replace('"x"', '"utf-8"')) |
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def test_decoder(self): |
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"codecs.decoder"
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def checkauto(encoding, input=u'@charset "x";g\xfcrk\u20ac{}'): |
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outputencoding = encoding |
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if outputencoding == "utf-8-sig": |
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outputencoding = "utf-8"
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# Check stateless decoder with encoding autodetection
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d = codecs.getdecoder("css")
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self.assertEqual(d(input.encode(encoding))[0], input.replace('"x"', '"%s"' % outputencoding)) |
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# Check stateless decoder with specified encoding
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self.assertEqual(d(input.encode(encoding), encoding=encoding)[0], input.replace('"x"', '"%s"' % outputencoding)) |
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if hasattr(codec, "getincrementaldecoder"): |
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# Check incremental decoder with encoding autodetection
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id = codecs.getincrementaldecoder("css")()
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self.assertEqual("".join(id.iterdecode(input.encode(encoding))), input.replace('"x"', '"%s"' % outputencoding)) |
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# Check incremental decoder with specified encoding
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id = codecs.getincrementaldecoder("css")(encoding=encoding)
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self.assertEqual("".join(id.iterdecode(input.encode(encoding))), input.replace('"x"', '"%s"' % outputencoding)) |
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# Check stream reader with encoding autodetection
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q = Queue() |
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sr = codecs.getreader("css")(q)
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result = [] |
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# TODO: py3 only???
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for c in input.encode(encoding): |
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q.write(c) |
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result.append(sr.read()) |
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self.assertEqual("".join(result), input.replace('"x"', '"%s"' % outputencoding)) |
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# Check stream reader with specified encoding
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q = Queue() |
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sr = codecs.getreader("css")(q, encoding=encoding)
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result = [] |
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for c in input.encode(encoding): |
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q.write(c) |
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result.append(sr.read()) |
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self.assertEqual("".join(result), input.replace('"x"', '"%s"' % outputencoding)) |
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# Autodetectable encodings
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checkauto("utf-8-sig")
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checkauto("utf-16")
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checkauto("utf-16-le")
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checkauto("utf-16-be")
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if haveutf32:
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checkauto("utf-32")
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checkauto("utf-32-le")
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checkauto("utf-32-be")
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def checkdecl(encoding, input=u'@charset "%s";g\xfcrk{}'): |
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# Check stateless decoder with encoding autodetection
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d = codecs.getdecoder("css")
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input = input % encoding
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outputencoding = encoding |
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if outputencoding == "utf-8-sig": |
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outputencoding = "utf-8"
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self.assertEqual(d(input.encode(encoding))[0], input) |
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# Check stateless decoder with specified encoding
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self.assertEqual(d(input.encode(encoding), encoding=encoding)[0], input) |
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if hasattr(codec, "getincrementaldecoder"): |
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# Check incremental decoder with encoding autodetection
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id = codecs.getincrementaldecoder("css")()
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self.assertEqual("".join(id.iterdecode(input.encode(encoding))), input) |
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# Check incremental decoder with specified encoding
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id = codecs.getincrementaldecoder("css")(encoding)
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self.assertEqual("".join(id.iterdecode(input.encode(encoding))), input) |
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# Check stream reader with encoding autodetection
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q = Queue() |
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sr = codecs.getreader("css")(q)
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result = [] |
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for c in input.encode(encoding): |
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q.write(c) |
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result.append(sr.read()) |
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self.assertEqual("".join(result), input) |
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# Check stream reader with specified encoding
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q = Queue() |
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sr = codecs.getreader("css")(q, encoding=encoding)
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result = [] |
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for c in input.encode(encoding): |
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q.write(c) |
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result.append(sr.read()) |
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self.assertEqual("".join(result), input) |
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# Use correct declaration
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checkdecl("utf-8")
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checkdecl("iso-8859-1", u'@charset "%s";g\xfcrk') |
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checkdecl("iso-8859-15")
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checkdecl("cp1252")
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# No recursion
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self.assertRaises(ValueError, u'@charset "css";div{}'.encode().decode, "css") |
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def test_encoder(self): |
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"codec.encoder"
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def check(encoding, input=u'@charset "x";g\xfcrk\u20ac{}'): |
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outputencoding = encoding |
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if outputencoding == "utf-8-sig": |
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outputencoding = "utf-8"
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# Check stateless encoder with encoding autodetection
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e = codecs.getencoder("css")
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inputdecl = input.replace('"x"', '"%s"' % encoding) |
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outputdecl = input.replace('"x"', '"%s"' % outputencoding) |
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self.assertEqual(e(inputdecl)[0].decode(encoding), outputdecl) |
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# Check stateless encoder with specified encoding
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self.assertEqual(e(input, encoding=encoding)[0].decode(encoding), outputdecl) |
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if hasattr(codec, "getincrementalencoder"): |
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# Check incremental encoder with encoding autodetection
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ie = codecs.getincrementalencoder("css")()
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self.assertEqual("".join(ie.iterencode(inputdecl)).decode(encoding), outputdecl) |
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# Check incremental encoder with specified encoding
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ie = codecs.getincrementalencoder("css")(encoding=encoding)
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self.assertEqual("".join(ie.iterencode(input)).decode(encoding), outputdecl) |
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# Check stream writer with encoding autodetection
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q = Queue() |
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sw = codecs.getwriter("css")(q)
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for c in inputdecl:#.encode(outputencoding): # TODO: .encode()??? |
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sw.write(c) |
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self.assertEqual(q.read().decode(encoding), input.replace('"x"', '"%s"' % outputencoding)) |
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# Check stream writer with specified encoding
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q = Queue() |
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sw = codecs.getwriter("css")(q, encoding=encoding)
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for c in input: |
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sw.write(c) |
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self.assertEqual(q.read().decode(encoding), input.replace('"x"', '"%s"' % outputencoding)) |
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# Autodetectable encodings
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check("utf-8-sig")
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check("utf-16")
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check("utf-16-le")
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check("utf-16-be")
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if haveutf32:
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check("utf-32")
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check("utf-32-le")
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check("utf-32-be")
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check("utf-8")
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check("iso-8859-1", u'@charset "x";g\xfcrk{}') |
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check("iso-8859-15")
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check("cp1252")
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# No recursion
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self.assertRaises(ValueError, u'@charset "css";div{}'.encode, "css") |
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def test_decode_force(self): |
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"codec.decode (force)"
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info = codecs.lookup("css")
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def decodeall(input, **kwargs): |
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# Py 2.5: info.decode('@charset "utf-8"; x')
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return info[1](input, **kwargs)[0] |
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def incdecode(input, **kwargs): |
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decoder = info.incrementaldecoder(**kwargs) |
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return decoder.decode(input) |
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def streamdecode(input, **kwargs): |
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stream = iostream(input) # py3 .decode('utf-8') but still error?! |
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reader = info.streamreader(stream, **kwargs) |
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return reader.read()
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for d in (decodeall, incdecode, streamdecode): |
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# input = '@charset "utf-8"; \xc3\xbf'
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# output = u'@charset "utf-8"; \xff'
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# self.assertEqual(d(input), output)
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#
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# input = '@charset "utf-8"; \xc3\xbf'
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# output = u'@charset "iso-8859-1"; \xc3\xbf'
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# self.assertEqual(d(input, encoding="iso-8859-1", force=True), output)
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#
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# input = '\xc3\xbf'
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# output = u'\xc3\xbf'
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# self.assertEqual(d(input, encoding="iso-8859-1", force=True), output)
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#
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# input = '@charset "utf-8"; \xc3\xbf'
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# output = u'@charset "utf-8"; \xff'
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# self.assertEqual(d(input, encoding="iso-8859-1", force=False), output)
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input = u'@charset "utf-8"; \xff'.encode('utf-8') |
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output = u'@charset "utf-8"; \xff'
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self.assertEqual(d(input), output) |
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#input = b'@charset "utf-8"; \xc3\xbf'
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input = u'@charset "utf-8"; \xff'.encode('utf-8') |
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output = u'@charset "iso-8859-1"; \xc3\xbf'
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self.assertEqual(d(input, encoding="iso-8859-1", force=True), output) |
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#input = b'\xc3\xbf'
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input = u'\xff'.encode('utf-8') |
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output = u'\xc3\xbf'
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self.assertEqual(d(input, encoding="iso-8859-1", force=True), output) |
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#input = b'@charset "utf-8"; \xc3\xbf'
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input = u'@charset "utf-8"; \xff'.encode('utf-8') |
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output = u'@charset "utf-8"; \xff'
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self.assertEqual(d(input, encoding="iso-8859-1", force=False), output) |
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if __name__ == '__main__': |
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import unittest |
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unittest.main() |