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117 lines
4.7 KiB
117 lines
4.7 KiB
from __future__ import absolute_import, division, unicode_literals
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import os
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import pytest
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from .support import get_data_files, test_dir, errorMessage, TestData as _TestData
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from html5lib import HTMLParser, _inputstream
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def test_basic_prescan_length():
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data = "<title>Caf\u00E9</title><!--a--><meta charset='utf-8'>".encode('utf-8')
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pad = 1024 - len(data) + 1
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data = data.replace(b"-a-", b"-" + (b"a" * pad) + b"-")
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assert len(data) == 1024 # Sanity
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stream = _inputstream.HTMLBinaryInputStream(data, useChardet=False)
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assert 'utf-8' == stream.charEncoding[0].name
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def test_parser_reparse():
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data = "<title>Caf\u00E9</title><!--a--><meta charset='utf-8'>".encode('utf-8')
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pad = 10240 - len(data) + 1
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data = data.replace(b"-a-", b"-" + (b"a" * pad) + b"-")
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assert len(data) == 10240 # Sanity
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stream = _inputstream.HTMLBinaryInputStream(data, useChardet=False)
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assert 'windows-1252' == stream.charEncoding[0].name
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p = HTMLParser(namespaceHTMLElements=False)
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doc = p.parse(data, useChardet=False)
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assert 'utf-8' == p.documentEncoding
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assert doc.find(".//title").text == "Caf\u00E9"
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@pytest.mark.parametrize("expected,data,kwargs", [
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("utf-16le", b"\xFF\xFE", {"override_encoding": "iso-8859-2"}),
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("utf-16be", b"\xFE\xFF", {"override_encoding": "iso-8859-2"}),
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("utf-8", b"\xEF\xBB\xBF", {"override_encoding": "iso-8859-2"}),
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("iso-8859-2", b"", {"override_encoding": "iso-8859-2", "transport_encoding": "iso-8859-3"}),
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("iso-8859-2", b"<meta charset=iso-8859-3>", {"transport_encoding": "iso-8859-2"}),
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("iso-8859-2", b"<meta charset=iso-8859-2>", {"same_origin_parent_encoding": "iso-8859-3"}),
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("iso-8859-2", b"", {"same_origin_parent_encoding": "iso-8859-2", "likely_encoding": "iso-8859-3"}),
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("iso-8859-2", b"", {"same_origin_parent_encoding": "utf-16", "likely_encoding": "iso-8859-2"}),
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("iso-8859-2", b"", {"same_origin_parent_encoding": "utf-16be", "likely_encoding": "iso-8859-2"}),
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("iso-8859-2", b"", {"same_origin_parent_encoding": "utf-16le", "likely_encoding": "iso-8859-2"}),
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("iso-8859-2", b"", {"likely_encoding": "iso-8859-2", "default_encoding": "iso-8859-3"}),
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("iso-8859-2", b"", {"default_encoding": "iso-8859-2"}),
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("windows-1252", b"", {"default_encoding": "totally-bogus-string"}),
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("windows-1252", b"", {}),
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])
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def test_parser_args(expected, data, kwargs):
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stream = _inputstream.HTMLBinaryInputStream(data, useChardet=False, **kwargs)
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assert expected == stream.charEncoding[0].name
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p = HTMLParser()
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p.parse(data, useChardet=False, **kwargs)
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assert expected == p.documentEncoding
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@pytest.mark.parametrize("kwargs", [
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{"override_encoding": "iso-8859-2"},
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{"override_encoding": None},
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{"transport_encoding": "iso-8859-2"},
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{"transport_encoding": None},
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{"same_origin_parent_encoding": "iso-8859-2"},
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{"same_origin_parent_encoding": None},
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{"likely_encoding": "iso-8859-2"},
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{"likely_encoding": None},
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{"default_encoding": "iso-8859-2"},
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{"default_encoding": None},
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{"foo_encoding": "iso-8859-2"},
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{"foo_encoding": None},
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])
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def test_parser_args_raises(kwargs):
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with pytest.raises(TypeError) as exc_info:
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p = HTMLParser()
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p.parse("", useChardet=False, **kwargs)
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assert exc_info.value.args[0].startswith("Cannot set an encoding with a unicode input")
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def runParserEncodingTest(data, encoding):
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p = HTMLParser()
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assert p.documentEncoding is None
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p.parse(data, useChardet=False)
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encoding = encoding.lower().decode("ascii")
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assert encoding == p.documentEncoding, errorMessage(data, encoding, p.documentEncoding)
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def runPreScanEncodingTest(data, encoding):
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stream = _inputstream.HTMLBinaryInputStream(data, useChardet=False)
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encoding = encoding.lower().decode("ascii")
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# Very crude way to ignore irrelevant tests
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if len(data) > stream.numBytesMeta:
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return
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assert encoding == stream.charEncoding[0].name, errorMessage(data, encoding, stream.charEncoding[0].name)
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def test_encoding():
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for filename in get_data_files("encoding"):
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tests = _TestData(filename, b"data", encoding=None)
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for test in tests:
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yield (runParserEncodingTest, test[b'data'], test[b'encoding'])
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yield (runPreScanEncodingTest, test[b'data'], test[b'encoding'])
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# pylint:disable=wrong-import-position
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try:
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import chardet # noqa
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except ImportError:
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print("chardet not found, skipping chardet tests")
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else:
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def test_chardet():
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with open(os.path.join(test_dir, "encoding", "chardet", "test_big5.txt"), "rb") as fp:
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encoding = _inputstream.HTMLInputStream(fp.read()).charEncoding
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assert encoding[0].name == "big5"
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# pylint:enable=wrong-import-position
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