77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
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"""Tests to ensure that the lxml tree builder generates good trees."""
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import re
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import warnings
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try:
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import lxml.etree
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LXML_PRESENT = True
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LXML_VERSION = lxml.etree.LXML_VERSION
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except ImportError as e:
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LXML_PRESENT = False
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LXML_VERSION = (0,)
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if LXML_PRESENT:
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from bs4.builder import LXMLTreeBuilder, LXMLTreeBuilderForXML
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from bs4 import (
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BeautifulSoup,
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BeautifulStoneSoup,
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)
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from bs4.element import Comment, Doctype, SoupStrainer
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from bs4.testing import skipIf
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from bs4.tests import test_htmlparser
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from bs4.testing import (
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HTMLTreeBuilderSmokeTest,
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XMLTreeBuilderSmokeTest,
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SoupTest,
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skipIf,
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)
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@skipIf(
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not LXML_PRESENT,
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"lxml seems not to be present, not testing its tree builder.")
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class LXMLTreeBuilderSmokeTest(SoupTest, HTMLTreeBuilderSmokeTest):
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"""See ``HTMLTreeBuilderSmokeTest``."""
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@property
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def default_builder(self):
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return LXMLTreeBuilder()
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def test_out_of_range_entity(self):
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self.assertSoupEquals(
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"<p>foo�bar</p>", "<p>foobar</p>")
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self.assertSoupEquals(
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"<p>foo�bar</p>", "<p>foobar</p>")
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self.assertSoupEquals(
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"<p>foo�bar</p>", "<p>foobar</p>")
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# In lxml < 2.3.5, an empty doctype causes a segfault. Skip this
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# test if an old version of lxml is installed.
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@skipIf(
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not LXML_PRESENT or LXML_VERSION < (2,3,5,0),
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"Skipping doctype test for old version of lxml to avoid segfault.")
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def test_empty_doctype(self):
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soup = self.soup("<!DOCTYPE>")
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doctype = soup.contents[0]
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self.assertEqual("", doctype.strip())
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def test_beautifulstonesoup_is_xml_parser(self):
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# Make sure that the deprecated BSS class uses an xml builder
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# if one is installed.
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with warnings.catch_warnings(record=True) as w:
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soup = BeautifulStoneSoup("<b />")
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self.assertEqual("<b/>", str(soup.b))
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self.assertTrue("BeautifulStoneSoup class is deprecated" in str(w[0].message))
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@skipIf(
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not LXML_PRESENT,
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"lxml seems not to be present, not testing its XML tree builder.")
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class LXMLXMLTreeBuilderSmokeTest(SoupTest, XMLTreeBuilderSmokeTest):
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"""See ``HTMLTreeBuilderSmokeTest``."""
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@property
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def default_builder(self):
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return LXMLTreeBuilderForXML()
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