File size: 48,392 Bytes
6370773 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 |
# encoding: utf-8
"""Helper classes for tests."""
# Use of this source code is governed by the MIT license.
__license__ = "MIT"
import pickle
import copy
import functools
import warnings
import pytest
from bs4 import BeautifulSoup
from bs4.element import (
CharsetMetaAttributeValue,
Comment,
ContentMetaAttributeValue,
Doctype,
PYTHON_SPECIFIC_ENCODINGS,
SoupStrainer,
Script,
Stylesheet,
Tag
)
from bs4.builder import (
DetectsXMLParsedAsHTML,
HTMLParserTreeBuilder,
XMLParsedAsHTMLWarning,
)
default_builder = HTMLParserTreeBuilder
# Some tests depend on specific third-party libraries. We use
# @pytest.mark.skipIf on the following conditionals to skip them
# if the libraries are not installed.
try:
from soupsieve import SelectorSyntaxError
SOUP_SIEVE_PRESENT = True
except ImportError:
SOUP_SIEVE_PRESENT = False
try:
import html5lib
HTML5LIB_PRESENT = True
except ImportError:
HTML5LIB_PRESENT = False
try:
import lxml.etree
LXML_PRESENT = True
LXML_VERSION = lxml.etree.LXML_VERSION
except ImportError:
LXML_PRESENT = False
LXML_VERSION = (0,)
BAD_DOCUMENT = """A bare string
<!DOCTYPE xsl:stylesheet SYSTEM "htmlent.dtd">
<!DOCTYPE xsl:stylesheet PUBLIC "htmlent.dtd">
<div><![CDATA[A CDATA section where it doesn't belong]]></div>
<div><svg><![CDATA[HTML5 does allow CDATA sections in SVG]]></svg></div>
<div>A <meta> tag</div>
<div>A <br> tag that supposedly has contents.</br></div>
<div>AT&T</div>
<div><textarea>Within a textarea, markup like <b> tags and <&<& should be treated as literal</textarea></div>
<div><script>if (i < 2) { alert("<b>Markup within script tags should be treated as literal.</b>"); }</script></div>
<div>This numeric entity is missing the final semicolon: <x t="piñata"></div>
<div><a href="http://example.com/</a> that attribute value never got closed</div>
<div><a href="foo</a>, </a><a href="bar">that attribute value was closed by the subsequent tag</a></div>
<! This document starts with a bogus declaration ><div>a</div>
<div>This document contains <!an incomplete declaration <div>(do you see it?)</div>
<div>This document ends with <!an incomplete declaration
<div><a style={height:21px;}>That attribute value was bogus</a></div>
<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">The doctype is invalid because it contains extra whitespace
<div><table><td nowrap>That boolean attribute had no value</td></table></div>
<div>Here's a nonexistent entity: &#foo; (do you see it?)</div>
<div>This document ends before the entity finishes: >
<div><p>Paragraphs shouldn't contain block display elements, but this one does: <dl><dt>you see?</dt></p>
<b b="20" a="1" b="10" a="2" a="3" a="4">Multiple values for the same attribute.</b>
<div><table><tr><td>Here's a table</td></tr></table></div>
<div><table id="1"><tr><td>Here's a nested table:<table id="2"><tr><td>foo</td></tr></table></td></div>
<div>This tag contains nothing but whitespace: <b> </b></div>
<div><blockquote><p><b>This p tag is cut off by</blockquote></p>the end of the blockquote tag</div>
<div><table><div>This table contains bare markup</div></table></div>
<div><div id="1">\n <a href="link1">This link is never closed.\n</div>\n<div id="2">\n <div id="3">\n <a href="link2">This link is closed.</a>\n </div>\n</div></div>
<div>This document contains a <!DOCTYPE surprise>surprise doctype</div>
<div><a><B><Cd><EFG>Mixed case tags are folded to lowercase</efg></CD></b></A></div>
<div><our\u2603>Tag name contains Unicode characters</our\u2603></div>
<div><a \u2603="snowman">Attribute name contains Unicode characters</a></div>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
"""
class SoupTest(object):
@property
def default_builder(self):
return default_builder
def soup(self, markup, **kwargs):
"""Build a Beautiful Soup object from markup."""
builder = kwargs.pop('builder', self.default_builder)
return BeautifulSoup(markup, builder=builder, **kwargs)
def document_for(self, markup, **kwargs):
"""Turn an HTML fragment into a document.
The details depend on the builder.
"""
return self.default_builder(**kwargs).test_fragment_to_document(markup)
def assert_soup(self, to_parse, compare_parsed_to=None):
"""Parse some markup using Beautiful Soup and verify that
the output markup is as expected.
"""
builder = self.default_builder
obj = BeautifulSoup(to_parse, builder=builder)
if compare_parsed_to is None:
compare_parsed_to = to_parse
# Verify that the documents come out the same.
assert obj.decode() == self.document_for(compare_parsed_to)
# Also run some checks on the BeautifulSoup object itself:
# Verify that every tag that was opened was eventually closed.
# There are no tags in the open tag counter.
assert all(v==0 for v in list(obj.open_tag_counter.values()))
# The only tag in the tag stack is the one for the root
# document.
assert [obj.ROOT_TAG_NAME] == [x.name for x in obj.tagStack]
assertSoupEquals = assert_soup
def assertConnectedness(self, element):
"""Ensure that next_element and previous_element are properly
set for all descendants of the given element.
"""
earlier = None
for e in element.descendants:
if earlier:
assert e == earlier.next_element
assert earlier == e.previous_element
earlier = e
def linkage_validator(self, el, _recursive_call=False):
"""Ensure proper linkage throughout the document."""
descendant = None
# Document element should have no previous element or previous sibling.
# It also shouldn't have a next sibling.
if el.parent is None:
assert el.previous_element is None,\
"Bad previous_element\nNODE: {}\nPREV: {}\nEXPECTED: {}".format(
el, el.previous_element, None
)
assert el.previous_sibling is None,\
"Bad previous_sibling\nNODE: {}\nPREV: {}\nEXPECTED: {}".format(
el, el.previous_sibling, None
)
assert el.next_sibling is None,\
"Bad next_sibling\nNODE: {}\nNEXT: {}\nEXPECTED: {}".format(
el, el.next_sibling, None
)
idx = 0
child = None
last_child = None
last_idx = len(el.contents) - 1
for child in el.contents:
descendant = None
# Parent should link next element to their first child
# That child should have no previous sibling
if idx == 0:
if el.parent is not None:
assert el.next_element is child,\
"Bad next_element\nNODE: {}\nNEXT: {}\nEXPECTED: {}".format(
el, el.next_element, child
)
assert child.previous_element is el,\
"Bad previous_element\nNODE: {}\nPREV: {}\nEXPECTED: {}".format(
child, child.previous_element, el
)
assert child.previous_sibling is None,\
"Bad previous_sibling\nNODE: {}\nPREV {}\nEXPECTED: {}".format(
child, child.previous_sibling, None
)
# If not the first child, previous index should link as sibling to this index
# Previous element should match the last index or the last bubbled up descendant
else:
assert child.previous_sibling is el.contents[idx - 1],\
"Bad previous_sibling\nNODE: {}\nPREV {}\nEXPECTED {}".format(
child, child.previous_sibling, el.contents[idx - 1]
)
assert el.contents[idx - 1].next_sibling is child,\
"Bad next_sibling\nNODE: {}\nNEXT {}\nEXPECTED {}".format(
el.contents[idx - 1], el.contents[idx - 1].next_sibling, child
)
if last_child is not None:
assert child.previous_element is last_child,\
"Bad previous_element\nNODE: {}\nPREV {}\nEXPECTED {}\nCONTENTS {}".format(
child, child.previous_element, last_child, child.parent.contents
)
assert last_child.next_element is child,\
"Bad next_element\nNODE: {}\nNEXT {}\nEXPECTED {}".format(
last_child, last_child.next_element, child
)
if isinstance(child, Tag) and child.contents:
descendant = self.linkage_validator(child, True)
# A bubbled up descendant should have no next siblings
assert descendant.next_sibling is None,\
"Bad next_sibling\nNODE: {}\nNEXT {}\nEXPECTED {}".format(
descendant, descendant.next_sibling, None
)
# Mark last child as either the bubbled up descendant or the current child
if descendant is not None:
last_child = descendant
else:
last_child = child
# If last child, there are non next siblings
if idx == last_idx:
assert child.next_sibling is None,\
"Bad next_sibling\nNODE: {}\nNEXT {}\nEXPECTED {}".format(
child, child.next_sibling, None
)
idx += 1
child = descendant if descendant is not None else child
if child is None:
child = el
if not _recursive_call and child is not None:
target = el
while True:
if target is None:
assert child.next_element is None, \
"Bad next_element\nNODE: {}\nNEXT {}\nEXPECTED {}".format(
child, child.next_element, None
)
break
elif target.next_sibling is not None:
assert child.next_element is target.next_sibling, \
"Bad next_element\nNODE: {}\nNEXT {}\nEXPECTED {}".format(
child, child.next_element, target.next_sibling
)
break
target = target.parent
# We are done, so nothing to return
return None
else:
# Return the child to the recursive caller
return child
def assert_selects(self, tags, should_match):
"""Make sure that the given tags have the correct text.
This is used in tests that define a bunch of tags, each
containing a single string, and then select certain strings by
some mechanism.
"""
assert [tag.string for tag in tags] == should_match
def assert_selects_ids(self, tags, should_match):
"""Make sure that the given tags have the correct IDs.
This is used in tests that define a bunch of tags, each
containing a single string, and then select certain strings by
some mechanism.
"""
assert [tag['id'] for tag in tags] == should_match
class TreeBuilderSmokeTest(object):
# Tests that are common to HTML and XML tree builders.
@pytest.mark.parametrize(
"multi_valued_attributes",
[None, {}, dict(b=['class']), {'*': ['notclass']}]
)
def test_attribute_not_multi_valued(self, multi_valued_attributes):
markup = '<html xmlns="http://www.w3.org/1999/xhtml"><a class="a b c"></html>'
soup = self.soup(markup, multi_valued_attributes=multi_valued_attributes)
assert soup.a['class'] == 'a b c'
@pytest.mark.parametrize(
"multi_valued_attributes", [dict(a=['class']), {'*': ['class']}]
)
def test_attribute_multi_valued(self, multi_valued_attributes):
markup = '<a class="a b c">'
soup = self.soup(
markup, multi_valued_attributes=multi_valued_attributes
)
assert soup.a['class'] == ['a', 'b', 'c']
def test_invalid_doctype(self):
markup = '<![if word]>content<![endif]>'
markup = '<!DOCTYPE html]ff>'
soup = self.soup(markup)
class HTMLTreeBuilderSmokeTest(TreeBuilderSmokeTest):
"""A basic test of a treebuilder's competence.
Any HTML treebuilder, present or future, should be able to pass
these tests. With invalid markup, there's room for interpretation,
and different parsers can handle it differently. But with the
markup in these tests, there's not much room for interpretation.
"""
def test_empty_element_tags(self):
"""Verify that all HTML4 and HTML5 empty element (aka void element) tags
are handled correctly.
"""
for name in [
'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen', 'link', 'menuitem', 'meta', 'param', 'source', 'track', 'wbr',
'spacer', 'frame'
]:
soup = self.soup("")
new_tag = soup.new_tag(name)
assert new_tag.is_empty_element == True
def test_special_string_containers(self):
soup = self.soup(
"<style>Some CSS</style><script>Some Javascript</script>"
)
assert isinstance(soup.style.string, Stylesheet)
assert isinstance(soup.script.string, Script)
soup = self.soup(
"<style><!--Some CSS--></style>"
)
assert isinstance(soup.style.string, Stylesheet)
# The contents of the style tag resemble an HTML comment, but
# it's not treated as a comment.
assert soup.style.string == "<!--Some CSS-->"
assert isinstance(soup.style.string, Stylesheet)
def test_pickle_and_unpickle_identity(self):
# Pickling a tree, then unpickling it, yields a tree identical
# to the original.
tree = self.soup("<a><b>foo</a>")
dumped = pickle.dumps(tree, 2)
loaded = pickle.loads(dumped)
assert loaded.__class__ == BeautifulSoup
assert loaded.decode() == tree.decode()
def assertDoctypeHandled(self, doctype_fragment):
"""Assert that a given doctype string is handled correctly."""
doctype_str, soup = self._document_with_doctype(doctype_fragment)
# Make sure a Doctype object was created.
doctype = soup.contents[0]
assert doctype.__class__ == Doctype
assert doctype == doctype_fragment
assert soup.encode("utf8")[:len(doctype_str)] == doctype_str
# Make sure that the doctype was correctly associated with the
# parse tree and that the rest of the document parsed.
assert soup.p.contents[0] == 'foo'
def _document_with_doctype(self, doctype_fragment, doctype_string="DOCTYPE"):
"""Generate and parse a document with the given doctype."""
doctype = '<!%s %s>' % (doctype_string, doctype_fragment)
markup = doctype + '\n<p>foo</p>'
soup = self.soup(markup)
return doctype.encode("utf8"), soup
def test_normal_doctypes(self):
"""Make sure normal, everyday HTML doctypes are handled correctly."""
self.assertDoctypeHandled("html")
self.assertDoctypeHandled(
'html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"')
def test_empty_doctype(self):
soup = self.soup("<!DOCTYPE>")
doctype = soup.contents[0]
assert "" == doctype.strip()
def test_mixed_case_doctype(self):
# A lowercase or mixed-case doctype becomes a Doctype.
for doctype_fragment in ("doctype", "DocType"):
doctype_str, soup = self._document_with_doctype(
"html", doctype_fragment
)
# Make sure a Doctype object was created and that the DOCTYPE
# is uppercase.
doctype = soup.contents[0]
assert doctype.__class__ == Doctype
assert doctype == "html"
assert soup.encode("utf8")[:len(doctype_str)] == b"<!DOCTYPE html>"
# Make sure that the doctype was correctly associated with the
# parse tree and that the rest of the document parsed.
assert soup.p.contents[0] == 'foo'
def test_public_doctype_with_url(self):
doctype = 'html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"'
self.assertDoctypeHandled(doctype)
def test_system_doctype(self):
self.assertDoctypeHandled('foo SYSTEM "http://www.example.com/"')
def test_namespaced_system_doctype(self):
# We can handle a namespaced doctype with a system ID.
self.assertDoctypeHandled('xsl:stylesheet SYSTEM "htmlent.dtd"')
def test_namespaced_public_doctype(self):
# Test a namespaced doctype with a public id.
self.assertDoctypeHandled('xsl:stylesheet PUBLIC "htmlent.dtd"')
def test_real_xhtml_document(self):
"""A real XHTML document should come out more or less the same as it went in."""
markup = b"""<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>Hello.</title></head>
<body>Goodbye.</body>
</html>"""
with warnings.catch_warnings(record=True) as w:
soup = self.soup(markup)
assert soup.encode("utf-8").replace(b"\n", b"") == markup.replace(b"\n", b"")
# No warning was issued about parsing an XML document as HTML,
# because XHTML is both.
assert w == []
def test_namespaced_html(self):
# When a namespaced XML document is parsed as HTML it should
# be treated as HTML with weird tag names.
markup = b"""<ns1:foo>content</ns1:foo><ns1:foo/><ns2:foo/>"""
with warnings.catch_warnings(record=True) as w:
soup = self.soup(markup)
assert 2 == len(soup.find_all("ns1:foo"))
# n.b. no "you're parsing XML as HTML" warning was given
# because there was no XML declaration.
assert [] == w
def test_detect_xml_parsed_as_html(self):
# A warning is issued when parsing an XML document as HTML,
# but basic stuff should still work.
markup = b"""<?xml version="1.0" encoding="utf-8"?><tag>string</tag>"""
with warnings.catch_warnings(record=True) as w:
soup = self.soup(markup)
assert soup.tag.string == 'string'
[warning] = w
assert isinstance(warning.message, XMLParsedAsHTMLWarning)
assert str(warning.message) == XMLParsedAsHTMLWarning.MESSAGE
# NOTE: the warning is not issued if the document appears to
# be XHTML (tested with test_real_xhtml_document in the
# superclass) or if there is no XML declaration (tested with
# test_namespaced_html in the superclass).
def test_processing_instruction(self):
# We test both Unicode and bytestring to verify that
# process_markup correctly sets processing_instruction_class
# even when the markup is already Unicode and there is no
# need to process anything.
markup = """<?PITarget PIContent?>"""
soup = self.soup(markup)
assert markup == soup.decode()
markup = b"""<?PITarget PIContent?>"""
soup = self.soup(markup)
assert markup == soup.encode("utf8")
def test_deepcopy(self):
"""Make sure you can copy the tree builder.
This is important because the builder is part of a
BeautifulSoup object, and we want to be able to copy that.
"""
copy.deepcopy(self.default_builder)
def test_p_tag_is_never_empty_element(self):
"""A <p> tag is never designated as an empty-element tag.
Even if the markup shows it as an empty-element tag, it
shouldn't be presented that way.
"""
soup = self.soup("<p/>")
assert not soup.p.is_empty_element
assert str(soup.p) == "<p></p>"
def test_unclosed_tags_get_closed(self):
"""A tag that's not closed by the end of the document should be closed.
This applies to all tags except empty-element tags.
"""
self.assert_soup("<p>", "<p></p>")
self.assert_soup("<b>", "<b></b>")
self.assert_soup("<br>", "<br/>")
def test_br_is_always_empty_element_tag(self):
"""A <br> tag is designated as an empty-element tag.
Some parsers treat <br></br> as one <br/> tag, some parsers as
two tags, but it should always be an empty-element tag.
"""
soup = self.soup("<br></br>")
assert soup.br.is_empty_element
assert str(soup.br) == "<br/>"
def test_nested_formatting_elements(self):
self.assert_soup("<em><em></em></em>")
def test_double_head(self):
html = '''<!DOCTYPE html>
<html>
<head>
<title>Ordinary HEAD element test</title>
</head>
<script type="text/javascript">
alert("Help!");
</script>
<body>
Hello, world!
</body>
</html>
'''
soup = self.soup(html)
assert "text/javascript" == soup.find('script')['type']
def test_comment(self):
# Comments are represented as Comment objects.
markup = "<p>foo<!--foobar-->baz</p>"
self.assert_soup(markup)
soup = self.soup(markup)
comment = soup.find(string="foobar")
assert comment.__class__ == Comment
# The comment is properly integrated into the tree.
foo = soup.find(string="foo")
assert comment == foo.next_element
baz = soup.find(string="baz")
assert comment == baz.previous_element
def test_preserved_whitespace_in_pre_and_textarea(self):
"""Whitespace must be preserved in <pre> and <textarea> tags,
even if that would mean not prettifying the markup.
"""
pre_markup = "<pre>a z</pre>\n"
textarea_markup = "<textarea> woo\nwoo </textarea>\n"
self.assert_soup(pre_markup)
self.assert_soup(textarea_markup)
soup = self.soup(pre_markup)
assert soup.pre.prettify() == pre_markup
soup = self.soup(textarea_markup)
assert soup.textarea.prettify() == textarea_markup
soup = self.soup("<textarea></textarea>")
assert soup.textarea.prettify() == "<textarea></textarea>\n"
def test_nested_inline_elements(self):
"""Inline elements can be nested indefinitely."""
b_tag = "<b>Inside a B tag</b>"
self.assert_soup(b_tag)
nested_b_tag = "<p>A <i>nested <b>tag</b></i></p>"
self.assert_soup(nested_b_tag)
double_nested_b_tag = "<p>A <a>doubly <i>nested <b>tag</b></i></a></p>"
self.assert_soup(nested_b_tag)
def test_nested_block_level_elements(self):
"""Block elements can be nested."""
soup = self.soup('<blockquote><p><b>Foo</b></p></blockquote>')
blockquote = soup.blockquote
assert blockquote.p.b.string == 'Foo'
assert blockquote.b.string == 'Foo'
def test_correctly_nested_tables(self):
"""One table can go inside another one."""
markup = ('<table id="1">'
'<tr>'
"<td>Here's another table:"
'<table id="2">'
'<tr><td>foo</td></tr>'
'</table></td>')
self.assert_soup(
markup,
'<table id="1"><tr><td>Here\'s another table:'
'<table id="2"><tr><td>foo</td></tr></table>'
'</td></tr></table>')
self.assert_soup(
"<table><thead><tr><td>Foo</td></tr></thead>"
"<tbody><tr><td>Bar</td></tr></tbody>"
"<tfoot><tr><td>Baz</td></tr></tfoot></table>")
def test_multivalued_attribute_with_whitespace(self):
# Whitespace separating the values of a multi-valued attribute
# should be ignored.
markup = '<div class=" foo bar "></a>'
soup = self.soup(markup)
assert ['foo', 'bar'] == soup.div['class']
# If you search by the literal name of the class it's like the whitespace
# wasn't there.
assert soup.div == soup.find('div', class_="foo bar")
def test_deeply_nested_multivalued_attribute(self):
# html5lib can set the attributes of the same tag many times
# as it rearranges the tree. This has caused problems with
# multivalued attributes.
markup = '<table><div><div class="css"></div></div></table>'
soup = self.soup(markup)
assert ["css"] == soup.div.div['class']
def test_multivalued_attribute_on_html(self):
# html5lib uses a different API to set the attributes ot the
# <html> tag. This has caused problems with multivalued
# attributes.
markup = '<html class="a b"></html>'
soup = self.soup(markup)
assert ["a", "b"] == soup.html['class']
def test_angle_brackets_in_attribute_values_are_escaped(self):
self.assert_soup('<a b="<a>"></a>', '<a b="<a>"></a>')
def test_strings_resembling_character_entity_references(self):
# "&T" and "&p" look like incomplete character entities, but they are
# not.
self.assert_soup(
"<p>• AT&T is in the s&p 500</p>",
"<p>\u2022 AT&T is in the s&p 500</p>"
)
def test_apos_entity(self):
self.assert_soup(
"<p>Bob's Bar</p>",
"<p>Bob's Bar</p>",
)
def test_entities_in_foreign_document_encoding(self):
# “ and ” are invalid numeric entities referencing
# Windows-1252 characters. - references a character common
# to Windows-1252 and Unicode, and ☃ references a
# character only found in Unicode.
#
# All of these entities should be converted to Unicode
# characters.
markup = "<p>“Hello” -☃</p>"
soup = self.soup(markup)
assert "“Hello” -☃" == soup.p.string
def test_entities_in_attributes_converted_to_unicode(self):
expect = '<p id="pi\N{LATIN SMALL LETTER N WITH TILDE}ata"></p>'
self.assert_soup('<p id="piñata"></p>', expect)
self.assert_soup('<p id="piñata"></p>', expect)
self.assert_soup('<p id="piñata"></p>', expect)
self.assert_soup('<p id="piñata"></p>', expect)
def test_entities_in_text_converted_to_unicode(self):
expect = '<p>pi\N{LATIN SMALL LETTER N WITH TILDE}ata</p>'
self.assert_soup("<p>piñata</p>", expect)
self.assert_soup("<p>piñata</p>", expect)
self.assert_soup("<p>piñata</p>", expect)
self.assert_soup("<p>piñata</p>", expect)
def test_quot_entity_converted_to_quotation_mark(self):
self.assert_soup("<p>I said "good day!"</p>",
'<p>I said "good day!"</p>')
def test_out_of_range_entity(self):
expect = "\N{REPLACEMENT CHARACTER}"
self.assert_soup("�", expect)
self.assert_soup("�", expect)
self.assert_soup("�", expect)
def test_multipart_strings(self):
"Mostly to prevent a recurrence of a bug in the html5lib treebuilder."
soup = self.soup("<html><h2>\nfoo</h2><p></p></html>")
assert "p" == soup.h2.string.next_element.name
assert "p" == soup.p.name
self.assertConnectedness(soup)
def test_empty_element_tags(self):
"""Verify consistent handling of empty-element tags,
no matter how they come in through the markup.
"""
self.assert_soup('<br/><br/><br/>', "<br/><br/><br/>")
self.assert_soup('<br /><br /><br />', "<br/><br/><br/>")
def test_head_tag_between_head_and_body(self):
"Prevent recurrence of a bug in the html5lib treebuilder."
content = """<html><head></head>
<link></link>
<body>foo</body>
</html>
"""
soup = self.soup(content)
assert soup.html.body is not None
self.assertConnectedness(soup)
def test_multiple_copies_of_a_tag(self):
"Prevent recurrence of a bug in the html5lib treebuilder."
content = """<!DOCTYPE html>
<html>
<body>
<article id="a" >
<div><a href="1"></div>
<footer>
<a href="2"></a>
</footer>
</article>
</body>
</html>
"""
soup = self.soup(content)
self.assertConnectedness(soup.article)
def test_basic_namespaces(self):
"""Parsers don't need to *understand* namespaces, but at the
very least they should not choke on namespaces or lose
data."""
markup = b'<html xmlns="http://www.w3.org/1999/xhtml" xmlns:mathml="http://www.w3.org/1998/Math/MathML" xmlns:svg="http://www.w3.org/2000/svg"><head></head><body><mathml:msqrt>4</mathml:msqrt><b svg:fill="red"></b></body></html>'
soup = self.soup(markup)
assert markup == soup.encode()
html = soup.html
assert 'http://www.w3.org/1999/xhtml' == soup.html['xmlns']
assert 'http://www.w3.org/1998/Math/MathML' == soup.html['xmlns:mathml']
assert 'http://www.w3.org/2000/svg' == soup.html['xmlns:svg']
def test_multivalued_attribute_value_becomes_list(self):
markup = b'<a class="foo bar">'
soup = self.soup(markup)
assert ['foo', 'bar'] == soup.a['class']
#
# Generally speaking, tests below this point are more tests of
# Beautiful Soup than tests of the tree builders. But parsers are
# weird, so we run these tests separately for every tree builder
# to detect any differences between them.
#
def test_can_parse_unicode_document(self):
# A seemingly innocuous document... but it's in Unicode! And
# it contains characters that can't be represented in the
# encoding found in the declaration! The horror!
markup = '<html><head><meta encoding="euc-jp"></head><body>Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!</body>'
soup = self.soup(markup)
assert 'Sacr\xe9 bleu!' == soup.body.string
def test_soupstrainer(self):
"""Parsers should be able to work with SoupStrainers."""
strainer = SoupStrainer("b")
soup = self.soup("A <b>bold</b> <meta/> <i>statement</i>",
parse_only=strainer)
assert soup.decode() == "<b>bold</b>"
def test_single_quote_attribute_values_become_double_quotes(self):
self.assert_soup("<foo attr='bar'></foo>",
'<foo attr="bar"></foo>')
def test_attribute_values_with_nested_quotes_are_left_alone(self):
text = """<foo attr='bar "brawls" happen'>a</foo>"""
self.assert_soup(text)
def test_attribute_values_with_double_nested_quotes_get_quoted(self):
text = """<foo attr='bar "brawls" happen'>a</foo>"""
soup = self.soup(text)
soup.foo['attr'] = 'Brawls happen at "Bob\'s Bar"'
self.assert_soup(
soup.foo.decode(),
"""<foo attr="Brawls happen at "Bob\'s Bar"">a</foo>""")
def test_ampersand_in_attribute_value_gets_escaped(self):
self.assert_soup('<this is="really messed up & stuff"></this>',
'<this is="really messed up & stuff"></this>')
self.assert_soup(
'<a href="http://example.org?a=1&b=2;3">foo</a>',
'<a href="http://example.org?a=1&b=2;3">foo</a>')
def test_escaped_ampersand_in_attribute_value_is_left_alone(self):
self.assert_soup('<a href="http://example.org?a=1&b=2;3"></a>')
def test_entities_in_strings_converted_during_parsing(self):
# Both XML and HTML entities are converted to Unicode characters
# during parsing.
text = "<p><<sacré bleu!>></p>"
expected = "<p><<sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></p>"
self.assert_soup(text, expected)
def test_smart_quotes_converted_on_the_way_in(self):
# Microsoft smart quotes are converted to Unicode characters during
# parsing.
quote = b"<p>\x91Foo\x92</p>"
soup = self.soup(quote)
assert soup.p.string == "\N{LEFT SINGLE QUOTATION MARK}Foo\N{RIGHT SINGLE QUOTATION MARK}"
def test_non_breaking_spaces_converted_on_the_way_in(self):
soup = self.soup("<a> </a>")
assert soup.a.string == "\N{NO-BREAK SPACE}" * 2
def test_entities_converted_on_the_way_out(self):
text = "<p><<sacré bleu!>></p>"
expected = "<p><<sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></p>".encode("utf-8")
soup = self.soup(text)
assert soup.p.encode("utf-8") == expected
def test_real_iso_8859_document(self):
# Smoke test of interrelated functionality, using an
# easy-to-understand document.
# Here it is in Unicode. Note that it claims to be in ISO-8859-1.
unicode_html = '<html><head><meta content="text/html; charset=ISO-8859-1" http-equiv="Content-type"/></head><body><p>Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!</p></body></html>'
# That's because we're going to encode it into ISO-8859-1,
# and use that to test.
iso_latin_html = unicode_html.encode("iso-8859-1")
# Parse the ISO-8859-1 HTML.
soup = self.soup(iso_latin_html)
# Encode it to UTF-8.
result = soup.encode("utf-8")
# What do we expect the result to look like? Well, it would
# look like unicode_html, except that the META tag would say
# UTF-8 instead of ISO-8859-1.
expected = unicode_html.replace("ISO-8859-1", "utf-8")
# And, of course, it would be in UTF-8, not Unicode.
expected = expected.encode("utf-8")
# Ta-da!
assert result == expected
def test_real_shift_jis_document(self):
# Smoke test to make sure the parser can handle a document in
# Shift-JIS encoding, without choking.
shift_jis_html = (
b'<html><head></head><body><pre>'
b'\x82\xb1\x82\xea\x82\xcdShift-JIS\x82\xc5\x83R\x81[\x83f'
b'\x83B\x83\x93\x83O\x82\xb3\x82\xea\x82\xbd\x93\xfa\x96{\x8c'
b'\xea\x82\xcc\x83t\x83@\x83C\x83\x8b\x82\xc5\x82\xb7\x81B'
b'</pre></body></html>')
unicode_html = shift_jis_html.decode("shift-jis")
soup = self.soup(unicode_html)
# Make sure the parse tree is correctly encoded to various
# encodings.
assert soup.encode("utf-8") == unicode_html.encode("utf-8")
assert soup.encode("euc_jp") == unicode_html.encode("euc_jp")
def test_real_hebrew_document(self):
# A real-world test to make sure we can convert ISO-8859-9 (a
# Hebrew encoding) to UTF-8.
hebrew_document = b'<html><head><title>Hebrew (ISO 8859-8) in Visual Directionality</title></head><body><h1>Hebrew (ISO 8859-8) in Visual Directionality</h1>\xed\xe5\xec\xf9</body></html>'
soup = self.soup(
hebrew_document, from_encoding="iso8859-8")
# Some tree builders call it iso8859-8, others call it iso-8859-9.
# That's not a difference we really care about.
assert soup.original_encoding in ('iso8859-8', 'iso-8859-8')
assert soup.encode('utf-8') == (
hebrew_document.decode("iso8859-8").encode("utf-8")
)
def test_meta_tag_reflects_current_encoding(self):
# Here's the <meta> tag saying that a document is
# encoded in Shift-JIS.
meta_tag = ('<meta content="text/html; charset=x-sjis" '
'http-equiv="Content-type"/>')
# Here's a document incorporating that meta tag.
shift_jis_html = (
'<html><head>\n%s\n'
'<meta http-equiv="Content-language" content="ja"/>'
'</head><body>Shift-JIS markup goes here.') % meta_tag
soup = self.soup(shift_jis_html)
# Parse the document, and the charset is seemingly unaffected.
parsed_meta = soup.find('meta', {'http-equiv': 'Content-type'})
content = parsed_meta['content']
assert 'text/html; charset=x-sjis' == content
# But that value is actually a ContentMetaAttributeValue object.
assert isinstance(content, ContentMetaAttributeValue)
# And it will take on a value that reflects its current
# encoding.
assert 'text/html; charset=utf8' == content.encode("utf8")
# For the rest of the story, see TestSubstitutions in
# test_tree.py.
def test_html5_style_meta_tag_reflects_current_encoding(self):
# Here's the <meta> tag saying that a document is
# encoded in Shift-JIS.
meta_tag = ('<meta id="encoding" charset="x-sjis" />')
# Here's a document incorporating that meta tag.
shift_jis_html = (
'<html><head>\n%s\n'
'<meta http-equiv="Content-language" content="ja"/>'
'</head><body>Shift-JIS markup goes here.') % meta_tag
soup = self.soup(shift_jis_html)
# Parse the document, and the charset is seemingly unaffected.
parsed_meta = soup.find('meta', id="encoding")
charset = parsed_meta['charset']
assert 'x-sjis' == charset
# But that value is actually a CharsetMetaAttributeValue object.
assert isinstance(charset, CharsetMetaAttributeValue)
# And it will take on a value that reflects its current
# encoding.
assert 'utf8' == charset.encode("utf8")
def test_python_specific_encodings_not_used_in_charset(self):
# You can encode an HTML document using a Python-specific
# encoding, but that encoding won't be mentioned _inside_ the
# resulting document. Instead, the document will appear to
# have no encoding.
for markup in [
b'<meta charset="utf8"></head>'
b'<meta id="encoding" charset="utf-8" />'
]:
soup = self.soup(markup)
for encoding in PYTHON_SPECIFIC_ENCODINGS:
if encoding in (
'idna', 'mbcs', 'oem', 'undefined',
'string_escape', 'string-escape'
):
# For one reason or another, these will raise an
# exception if we actually try to use them, so don't
# bother.
continue
encoded = soup.encode(encoding)
assert b'meta charset=""' in encoded
assert encoding.encode("ascii") not in encoded
def test_tag_with_no_attributes_can_have_attributes_added(self):
data = self.soup("<a>text</a>")
data.a['foo'] = 'bar'
assert '<a foo="bar">text</a>' == data.a.decode()
def test_closing_tag_with_no_opening_tag(self):
# Without BeautifulSoup.open_tag_counter, the </span> tag will
# cause _popToTag to be called over and over again as we look
# for a <span> tag that wasn't there. The result is that 'text2'
# will show up outside the body of the document.
soup = self.soup("<body><div><p>text1</p></span>text2</div></body>")
assert "<body><div><p>text1</p>text2</div></body>" == soup.body.decode()
def test_worst_case(self):
"""Test the worst case (currently) for linking issues."""
soup = self.soup(BAD_DOCUMENT)
self.linkage_validator(soup)
class XMLTreeBuilderSmokeTest(TreeBuilderSmokeTest):
def test_pickle_and_unpickle_identity(self):
# Pickling a tree, then unpickling it, yields a tree identical
# to the original.
tree = self.soup("<a><b>foo</a>")
dumped = pickle.dumps(tree, 2)
loaded = pickle.loads(dumped)
assert loaded.__class__ == BeautifulSoup
assert loaded.decode() == tree.decode()
def test_docstring_generated(self):
soup = self.soup("<root/>")
assert soup.encode() == b'<?xml version="1.0" encoding="utf-8"?>\n<root/>'
def test_xml_declaration(self):
markup = b"""<?xml version="1.0" encoding="utf8"?>\n<foo/>"""
soup = self.soup(markup)
assert markup == soup.encode("utf8")
def test_python_specific_encodings_not_used_in_xml_declaration(self):
# You can encode an XML document using a Python-specific
# encoding, but that encoding won't be mentioned _inside_ the
# resulting document.
markup = b"""<?xml version="1.0"?>\n<foo/>"""
soup = self.soup(markup)
for encoding in PYTHON_SPECIFIC_ENCODINGS:
if encoding in (
'idna', 'mbcs', 'oem', 'undefined',
'string_escape', 'string-escape'
):
# For one reason or another, these will raise an
# exception if we actually try to use them, so don't
# bother.
continue
encoded = soup.encode(encoding)
assert b'<?xml version="1.0"?>' in encoded
assert encoding.encode("ascii") not in encoded
def test_processing_instruction(self):
markup = b"""<?xml version="1.0" encoding="utf8"?>\n<?PITarget PIContent?>"""
soup = self.soup(markup)
assert markup == soup.encode("utf8")
def test_real_xhtml_document(self):
"""A real XHTML document should come out *exactly* the same as it went in."""
markup = b"""<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>Hello.</title></head>
<body>Goodbye.</body>
</html>"""
soup = self.soup(markup)
assert soup.encode("utf-8") == markup
def test_nested_namespaces(self):
doc = b"""<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<parent xmlns="http://ns1/">
<child xmlns="http://ns2/" xmlns:ns3="http://ns3/">
<grandchild ns3:attr="value" xmlns="http://ns4/"/>
</child>
</parent>"""
soup = self.soup(doc)
assert doc == soup.encode()
def test_formatter_processes_script_tag_for_xml_documents(self):
doc = """
<script type="text/javascript">
</script>
"""
soup = BeautifulSoup(doc, "lxml-xml")
# lxml would have stripped this while parsing, but we can add
# it later.
soup.script.string = 'console.log("< < hey > > ");'
encoded = soup.encode()
assert b"< < hey > >" in encoded
def test_can_parse_unicode_document(self):
markup = '<?xml version="1.0" encoding="euc-jp"><root>Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!</root>'
soup = self.soup(markup)
assert 'Sacr\xe9 bleu!' == soup.root.string
def test_can_parse_unicode_document_begining_with_bom(self):
markup = '\N{BYTE ORDER MARK}<?xml version="1.0" encoding="euc-jp"><root>Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!</root>'
soup = self.soup(markup)
assert 'Sacr\xe9 bleu!' == soup.root.string
def test_popping_namespaced_tag(self):
markup = '<rss xmlns:dc="foo"><dc:creator>b</dc:creator><dc:date>2012-07-02T20:33:42Z</dc:date><dc:rights>c</dc:rights><image>d</image></rss>'
soup = self.soup(markup)
assert str(soup.rss) == markup
def test_docstring_includes_correct_encoding(self):
soup = self.soup("<root/>")
assert soup.encode("latin1") == b'<?xml version="1.0" encoding="latin1"?>\n<root/>'
def test_large_xml_document(self):
"""A large XML document should come out the same as it went in."""
markup = (b'<?xml version="1.0" encoding="utf-8"?>\n<root>'
+ b'0' * (2**12)
+ b'</root>')
soup = self.soup(markup)
assert soup.encode("utf-8") == markup
def test_tags_are_empty_element_if_and_only_if_they_are_empty(self):
self.assert_soup("<p>", "<p/>")
self.assert_soup("<p>foo</p>")
def test_namespaces_are_preserved(self):
markup = '<root xmlns:a="http://example.com/" xmlns:b="http://example.net/"><a:foo>This tag is in the a namespace</a:foo><b:foo>This tag is in the b namespace</b:foo></root>'
soup = self.soup(markup)
root = soup.root
assert "http://example.com/" == root['xmlns:a']
assert "http://example.net/" == root['xmlns:b']
def test_closing_namespaced_tag(self):
markup = '<p xmlns:dc="http://purl.org/dc/elements/1.1/"><dc:date>20010504</dc:date></p>'
soup = self.soup(markup)
assert str(soup.p) == markup
def test_namespaced_attributes(self):
markup = '<foo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><bar xsi:schemaLocation="http://www.example.com"/></foo>'
soup = self.soup(markup)
assert str(soup.foo) == markup
def test_namespaced_attributes_xml_namespace(self):
markup = '<foo xml:lang="fr">bar</foo>'
soup = self.soup(markup)
assert str(soup.foo) == markup
def test_find_by_prefixed_name(self):
doc = """<?xml version="1.0" encoding="utf-8"?>
<Document xmlns="http://example.com/ns0"
xmlns:ns1="http://example.com/ns1"
xmlns:ns2="http://example.com/ns2">
<ns1:tag>foo</ns1:tag>
<ns1:tag>bar</ns1:tag>
<ns2:tag key="value">baz</ns2:tag>
</Document>
"""
soup = self.soup(doc)
# There are three <tag> tags.
assert 3 == len(soup.find_all('tag'))
# But two of them are ns1:tag and one of them is ns2:tag.
assert 2 == len(soup.find_all('ns1:tag'))
assert 1 == len(soup.find_all('ns2:tag'))
assert 1, len(soup.find_all('ns2:tag', key='value'))
assert 3, len(soup.find_all(['ns1:tag', 'ns2:tag']))
def test_copy_tag_preserves_namespace(self):
xml = """<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<w:document xmlns:w="http://example.com/ns0"/>"""
soup = self.soup(xml)
tag = soup.document
duplicate = copy.copy(tag)
# The two tags have the same namespace prefix.
assert tag.prefix == duplicate.prefix
def test_worst_case(self):
"""Test the worst case (currently) for linking issues."""
soup = self.soup(BAD_DOCUMENT)
self.linkage_validator(soup)
class HTML5TreeBuilderSmokeTest(HTMLTreeBuilderSmokeTest):
"""Smoke test for a tree builder that supports HTML5."""
def test_real_xhtml_document(self):
# Since XHTML is not HTML5, HTML5 parsers are not tested to handle
# XHTML documents in any particular way.
pass
def test_html_tags_have_namespace(self):
markup = "<a>"
soup = self.soup(markup)
assert "http://www.w3.org/1999/xhtml" == soup.a.namespace
def test_svg_tags_have_namespace(self):
markup = '<svg><circle/></svg>'
soup = self.soup(markup)
namespace = "http://www.w3.org/2000/svg"
assert namespace == soup.svg.namespace
assert namespace == soup.circle.namespace
def test_mathml_tags_have_namespace(self):
markup = '<math><msqrt>5</msqrt></math>'
soup = self.soup(markup)
namespace = 'http://www.w3.org/1998/Math/MathML'
assert namespace == soup.math.namespace
assert namespace == soup.msqrt.namespace
def test_xml_declaration_becomes_comment(self):
markup = '<?xml version="1.0" encoding="utf-8"?><html></html>'
soup = self.soup(markup)
assert isinstance(soup.contents[0], Comment)
assert soup.contents[0] == '?xml version="1.0" encoding="utf-8"?'
assert "html" == soup.contents[0].next_element.name
|