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Diffstat (limited to 'import-layers/yocto-poky/bitbake/lib/bs4/tests')
8 files changed, 2636 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/__init__.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/__init__.py new file mode 100644 index 000000000..142c8cc3f --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/__init__.py @@ -0,0 +1 @@ +"The beautifulsoup tests." diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_builder_registry.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_builder_registry.py new file mode 100644 index 000000000..92ad10fb0 --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_builder_registry.py @@ -0,0 +1,141 @@ +"""Tests of the builder registry.""" + +import unittest + +from bs4 import BeautifulSoup +from bs4.builder import ( + builder_registry as registry, + HTMLParserTreeBuilder, + TreeBuilderRegistry, +) + +try: + from bs4.builder import HTML5TreeBuilder + HTML5LIB_PRESENT = True +except ImportError: + HTML5LIB_PRESENT = False + +try: + from bs4.builder import ( + LXMLTreeBuilderForXML, + LXMLTreeBuilder, + ) + LXML_PRESENT = True +except ImportError: + LXML_PRESENT = False + + +class BuiltInRegistryTest(unittest.TestCase): + """Test the built-in registry with the default builders registered.""" + + def test_combination(self): + if LXML_PRESENT: + self.assertEqual(registry.lookup('fast', 'html'), + LXMLTreeBuilder) + + if LXML_PRESENT: + self.assertEqual(registry.lookup('permissive', 'xml'), + LXMLTreeBuilderForXML) + self.assertEqual(registry.lookup('strict', 'html'), + HTMLParserTreeBuilder) + if HTML5LIB_PRESENT: + self.assertEqual(registry.lookup('html5lib', 'html'), + HTML5TreeBuilder) + + def test_lookup_by_markup_type(self): + if LXML_PRESENT: + self.assertEqual(registry.lookup('html'), LXMLTreeBuilder) + self.assertEqual(registry.lookup('xml'), LXMLTreeBuilderForXML) + else: + self.assertEqual(registry.lookup('xml'), None) + if HTML5LIB_PRESENT: + self.assertEqual(registry.lookup('html'), HTML5TreeBuilder) + else: + self.assertEqual(registry.lookup('html'), HTMLParserTreeBuilder) + + def test_named_library(self): + if LXML_PRESENT: + self.assertEqual(registry.lookup('lxml', 'xml'), + LXMLTreeBuilderForXML) + self.assertEqual(registry.lookup('lxml', 'html'), + LXMLTreeBuilder) + if HTML5LIB_PRESENT: + self.assertEqual(registry.lookup('html5lib'), + HTML5TreeBuilder) + + self.assertEqual(registry.lookup('html.parser'), + HTMLParserTreeBuilder) + + def test_beautifulsoup_constructor_does_lookup(self): + # You can pass in a string. + BeautifulSoup("", features="html") + # Or a list of strings. + BeautifulSoup("", features=["html", "fast"]) + + # You'll get an exception if BS can't find an appropriate + # builder. + self.assertRaises(ValueError, BeautifulSoup, + "", features="no-such-feature") + +class RegistryTest(unittest.TestCase): + """Test the TreeBuilderRegistry class in general.""" + + def setUp(self): + self.registry = TreeBuilderRegistry() + + def builder_for_features(self, *feature_list): + cls = type('Builder_' + '_'.join(feature_list), + (object,), {'features' : feature_list}) + + self.registry.register(cls) + return cls + + def test_register_with_no_features(self): + builder = self.builder_for_features() + + # Since the builder advertises no features, you can't find it + # by looking up features. + self.assertEqual(self.registry.lookup('foo'), None) + + # But you can find it by doing a lookup with no features, if + # this happens to be the only registered builder. + self.assertEqual(self.registry.lookup(), builder) + + def test_register_with_features_makes_lookup_succeed(self): + builder = self.builder_for_features('foo', 'bar') + self.assertEqual(self.registry.lookup('foo'), builder) + self.assertEqual(self.registry.lookup('bar'), builder) + + def test_lookup_fails_when_no_builder_implements_feature(self): + builder = self.builder_for_features('foo', 'bar') + self.assertEqual(self.registry.lookup('baz'), None) + + def test_lookup_gets_most_recent_registration_when_no_feature_specified(self): + builder1 = self.builder_for_features('foo') + builder2 = self.builder_for_features('bar') + self.assertEqual(self.registry.lookup(), builder2) + + def test_lookup_fails_when_no_tree_builders_registered(self): + self.assertEqual(self.registry.lookup(), None) + + def test_lookup_gets_most_recent_builder_supporting_all_features(self): + has_one = self.builder_for_features('foo') + has_the_other = self.builder_for_features('bar') + has_both_early = self.builder_for_features('foo', 'bar', 'baz') + has_both_late = self.builder_for_features('foo', 'bar', 'quux') + lacks_one = self.builder_for_features('bar') + has_the_other = self.builder_for_features('foo') + + # There are two builders featuring 'foo' and 'bar', but + # the one that also features 'quux' was registered later. + self.assertEqual(self.registry.lookup('foo', 'bar'), + has_both_late) + + # There is only one builder featuring 'foo', 'bar', and 'baz'. + self.assertEqual(self.registry.lookup('foo', 'bar', 'baz'), + has_both_early) + + def test_lookup_fails_when_cannot_reconcile_requested_features(self): + builder1 = self.builder_for_features('foo', 'bar') + builder2 = self.builder_for_features('foo', 'baz') + self.assertEqual(self.registry.lookup('bar', 'baz'), None) diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_docs.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_docs.py new file mode 100644 index 000000000..5b9f67709 --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_docs.py @@ -0,0 +1,36 @@ +"Test harness for doctests." + +# pylint: disable-msg=E0611,W0142 + +__metaclass__ = type +__all__ = [ + 'additional_tests', + ] + +import atexit +import doctest +import os +#from pkg_resources import ( +# resource_filename, resource_exists, resource_listdir, cleanup_resources) +import unittest + +DOCTEST_FLAGS = ( + doctest.ELLIPSIS | + doctest.NORMALIZE_WHITESPACE | + doctest.REPORT_NDIFF) + + +# def additional_tests(): +# "Run the doc tests (README.txt and docs/*, if any exist)" +# doctest_files = [ +# os.path.abspath(resource_filename('bs4', 'README.txt'))] +# if resource_exists('bs4', 'docs'): +# for name in resource_listdir('bs4', 'docs'): +# if name.endswith('.txt'): +# doctest_files.append( +# os.path.abspath( +# resource_filename('bs4', 'docs/%s' % name))) +# kwargs = dict(module_relative=False, optionflags=DOCTEST_FLAGS) +# atexit.register(cleanup_resources) +# return unittest.TestSuite(( +# doctest.DocFileSuite(*doctest_files, **kwargs))) diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_html5lib.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_html5lib.py new file mode 100644 index 000000000..594c3e1f2 --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_html5lib.py @@ -0,0 +1,85 @@ +"""Tests to ensure that the html5lib tree builder generates good trees.""" + +import warnings + +try: + from bs4.builder import HTML5TreeBuilder + HTML5LIB_PRESENT = True +except ImportError, e: + HTML5LIB_PRESENT = False +from bs4.element import SoupStrainer +from bs4.testing import ( + HTML5TreeBuilderSmokeTest, + SoupTest, + skipIf, +) + +@skipIf( + not HTML5LIB_PRESENT, + "html5lib seems not to be present, not testing its tree builder.") +class HTML5LibBuilderSmokeTest(SoupTest, HTML5TreeBuilderSmokeTest): + """See ``HTML5TreeBuilderSmokeTest``.""" + + @property + def default_builder(self): + return HTML5TreeBuilder() + + def test_soupstrainer(self): + # The html5lib tree builder does not support SoupStrainers. + strainer = SoupStrainer("b") + markup = "<p>A <b>bold</b> statement.</p>" + with warnings.catch_warnings(record=True) as w: + soup = self.soup(markup, parse_only=strainer) + self.assertEqual( + soup.decode(), self.document_for(markup)) + + self.assertTrue( + "the html5lib tree builder doesn't support parse_only" in + str(w[0].message)) + + def test_correctly_nested_tables(self): + """html5lib inserts <tbody> tags where other parsers don't.""" + markup = ('<table id="1">' + '<tr>' + "<td>Here's another table:" + '<table id="2">' + '<tr><td>foo</td></tr>' + '</table></td>') + + self.assertSoupEquals( + markup, + '<table id="1"><tbody><tr><td>Here\'s another table:' + '<table id="2"><tbody><tr><td>foo</td></tr></tbody></table>' + '</td></tr></tbody></table>') + + self.assertSoupEquals( + "<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_xml_declaration_followed_by_doctype(self): + markup = '''<?xml version="1.0" encoding="utf-8"?> +<!DOCTYPE html> +<html> + <head> + </head> + <body> + <p>foo</p> + </body> +</html>''' + soup = self.soup(markup) + # Verify that we can reach the <p> tag; this means the tree is connected. + self.assertEqual(b"<p>foo</p>", soup.p.encode()) + + def test_reparented_markup(self): + markup = '<p><em>foo</p>\n<p>bar<a></a></em></p>' + soup = self.soup(markup) + self.assertEqual(u"<body><p><em>foo</em></p><em>\n</em><p><em>bar<a></a></em></p></body>", soup.body.decode()) + self.assertEqual(2, len(soup.find_all('p'))) + + + def test_reparented_markup_ends_with_whitespace(self): + markup = '<p><em>foo</p>\n<p>bar<a></a></em></p>\n' + soup = self.soup(markup) + self.assertEqual(u"<body><p><em>foo</em></p><em>\n</em><p><em>bar<a></a></em></p>\n</body>", soup.body.decode()) + self.assertEqual(2, len(soup.find_all('p'))) diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_htmlparser.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_htmlparser.py new file mode 100644 index 000000000..bcb5ed232 --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_htmlparser.py @@ -0,0 +1,19 @@ +"""Tests to ensure that the html.parser tree builder generates good +trees.""" + +from bs4.testing import SoupTest, HTMLTreeBuilderSmokeTest +from bs4.builder import HTMLParserTreeBuilder + +class HTMLParserTreeBuilderSmokeTest(SoupTest, HTMLTreeBuilderSmokeTest): + + @property + def default_builder(self): + return HTMLParserTreeBuilder() + + def test_namespaced_system_doctype(self): + # html.parser can't handle namespaced doctypes, so skip this one. + pass + + def test_namespaced_public_doctype(self): + # html.parser can't handle namespaced doctypes, so skip this one. + pass diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_lxml.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_lxml.py new file mode 100644 index 000000000..2b2e9b7e7 --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_lxml.py @@ -0,0 +1,91 @@ +"""Tests to ensure that the lxml tree builder generates good trees.""" + +import re +import warnings + +try: + import lxml.etree + LXML_PRESENT = True + LXML_VERSION = lxml.etree.LXML_VERSION +except ImportError, e: + LXML_PRESENT = False + LXML_VERSION = (0,) + +if LXML_PRESENT: + from bs4.builder import LXMLTreeBuilder, LXMLTreeBuilderForXML + +from bs4 import ( + BeautifulSoup, + BeautifulStoneSoup, + ) +from bs4.element import Comment, Doctype, SoupStrainer +from bs4.testing import skipIf +from bs4.tests import test_htmlparser +from bs4.testing import ( + HTMLTreeBuilderSmokeTest, + XMLTreeBuilderSmokeTest, + SoupTest, + skipIf, +) + +@skipIf( + not LXML_PRESENT, + "lxml seems not to be present, not testing its tree builder.") +class LXMLTreeBuilderSmokeTest(SoupTest, HTMLTreeBuilderSmokeTest): + """See ``HTMLTreeBuilderSmokeTest``.""" + + @property + def default_builder(self): + return LXMLTreeBuilder() + + def test_out_of_range_entity(self): + self.assertSoupEquals( + "<p>foo�bar</p>", "<p>foobar</p>") + self.assertSoupEquals( + "<p>foo�bar</p>", "<p>foobar</p>") + self.assertSoupEquals( + "<p>foo�bar</p>", "<p>foobar</p>") + + # In lxml < 2.3.5, an empty doctype causes a segfault. Skip this + # test if an old version of lxml is installed. + + @skipIf( + not LXML_PRESENT or LXML_VERSION < (2,3,5,0), + "Skipping doctype test for old version of lxml to avoid segfault.") + def test_empty_doctype(self): + soup = self.soup("<!DOCTYPE>") + doctype = soup.contents[0] + self.assertEqual("", doctype.strip()) + + def test_beautifulstonesoup_is_xml_parser(self): + # Make sure that the deprecated BSS class uses an xml builder + # if one is installed. + with warnings.catch_warnings(record=True) as w: + soup = BeautifulStoneSoup("<b />") + self.assertEqual(u"<b/>", unicode(soup.b)) + self.assertTrue("BeautifulStoneSoup class is deprecated" in str(w[0].message)) + + def test_real_xhtml_document(self): + """lxml strips the XML definition from an XHTML doc, which is fine.""" + 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) + self.assertEqual( + soup.encode("utf-8").replace(b"\n", b''), + markup.replace(b'\n', b'').replace( + b'<?xml version="1.0" encoding="utf-8"?>', b'')) + + +@skipIf( + not LXML_PRESENT, + "lxml seems not to be present, not testing its XML tree builder.") +class LXMLXMLTreeBuilderSmokeTest(SoupTest, XMLTreeBuilderSmokeTest): + """See ``HTMLTreeBuilderSmokeTest``.""" + + @property + def default_builder(self): + return LXMLTreeBuilderForXML() diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_soup.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_soup.py new file mode 100644 index 000000000..47ac245f9 --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_soup.py @@ -0,0 +1,434 @@ +# -*- coding: utf-8 -*- +"""Tests of Beautiful Soup as a whole.""" + +import logging +import unittest +import sys +import tempfile + +from bs4 import ( + BeautifulSoup, + BeautifulStoneSoup, +) +from bs4.element import ( + CharsetMetaAttributeValue, + ContentMetaAttributeValue, + SoupStrainer, + NamespacedAttribute, + ) +import bs4.dammit +from bs4.dammit import ( + EntitySubstitution, + UnicodeDammit, +) +from bs4.testing import ( + SoupTest, + skipIf, +) +import warnings + +try: + from bs4.builder import LXMLTreeBuilder, LXMLTreeBuilderForXML + LXML_PRESENT = True +except ImportError, e: + LXML_PRESENT = False + +PYTHON_2_PRE_2_7 = (sys.version_info < (2,7)) +PYTHON_3_PRE_3_2 = (sys.version_info[0] == 3 and sys.version_info < (3,2)) + +class TestConstructor(SoupTest): + + def test_short_unicode_input(self): + data = u"<h1>éé</h1>" + soup = self.soup(data) + self.assertEqual(u"éé", soup.h1.string) + + def test_embedded_null(self): + data = u"<h1>foo\0bar</h1>" + soup = self.soup(data) + self.assertEqual(u"foo\0bar", soup.h1.string) + + +class TestDeprecatedConstructorArguments(SoupTest): + + def test_parseOnlyThese_renamed_to_parse_only(self): + with warnings.catch_warnings(record=True) as w: + soup = self.soup("<a><b></b></a>", parseOnlyThese=SoupStrainer("b")) + msg = str(w[0].message) + self.assertTrue("parseOnlyThese" in msg) + self.assertTrue("parse_only" in msg) + self.assertEqual(b"<b></b>", soup.encode()) + + def test_fromEncoding_renamed_to_from_encoding(self): + with warnings.catch_warnings(record=True) as w: + utf8 = b"\xc3\xa9" + soup = self.soup(utf8, fromEncoding="utf8") + msg = str(w[0].message) + self.assertTrue("fromEncoding" in msg) + self.assertTrue("from_encoding" in msg) + self.assertEqual("utf8", soup.original_encoding) + + def test_unrecognized_keyword_argument(self): + self.assertRaises( + TypeError, self.soup, "<a>", no_such_argument=True) + +class TestWarnings(SoupTest): + + def test_disk_file_warning(self): + filehandle = tempfile.NamedTemporaryFile() + filename = filehandle.name + try: + with warnings.catch_warnings(record=True) as w: + soup = self.soup(filename) + msg = str(w[0].message) + self.assertTrue("looks like a filename" in msg) + finally: + filehandle.close() + + # The file no longer exists, so Beautiful Soup will no longer issue the warning. + with warnings.catch_warnings(record=True) as w: + soup = self.soup(filename) + self.assertEqual(0, len(w)) + + def test_url_warning(self): + with warnings.catch_warnings(record=True) as w: + soup = self.soup("http://www.crummy.com/") + msg = str(w[0].message) + self.assertTrue("looks like a URL" in msg) + + with warnings.catch_warnings(record=True) as w: + soup = self.soup("http://www.crummy.com/ is great") + self.assertEqual(0, len(w)) + +class TestSelectiveParsing(SoupTest): + + def test_parse_with_soupstrainer(self): + markup = "No<b>Yes</b><a>No<b>Yes <c>Yes</c></b>" + strainer = SoupStrainer("b") + soup = self.soup(markup, parse_only=strainer) + self.assertEqual(soup.encode(), b"<b>Yes</b><b>Yes <c>Yes</c></b>") + + +class TestEntitySubstitution(unittest.TestCase): + """Standalone tests of the EntitySubstitution class.""" + def setUp(self): + self.sub = EntitySubstitution + + def test_simple_html_substitution(self): + # Unicode characters corresponding to named HTML entites + # are substituted, and no others. + s = u"foo\u2200\N{SNOWMAN}\u00f5bar" + self.assertEqual(self.sub.substitute_html(s), + u"foo∀\N{SNOWMAN}õbar") + + def test_smart_quote_substitution(self): + # MS smart quotes are a common source of frustration, so we + # give them a special test. + quotes = b"\x91\x92foo\x93\x94" + dammit = UnicodeDammit(quotes) + self.assertEqual(self.sub.substitute_html(dammit.markup), + "‘’foo“”") + + def test_xml_converstion_includes_no_quotes_if_make_quoted_attribute_is_false(self): + s = 'Welcome to "my bar"' + self.assertEqual(self.sub.substitute_xml(s, False), s) + + def test_xml_attribute_quoting_normally_uses_double_quotes(self): + self.assertEqual(self.sub.substitute_xml("Welcome", True), + '"Welcome"') + self.assertEqual(self.sub.substitute_xml("Bob's Bar", True), + '"Bob\'s Bar"') + + def test_xml_attribute_quoting_uses_single_quotes_when_value_contains_double_quotes(self): + s = 'Welcome to "my bar"' + self.assertEqual(self.sub.substitute_xml(s, True), + "'Welcome to \"my bar\"'") + + def test_xml_attribute_quoting_escapes_single_quotes_when_value_contains_both_single_and_double_quotes(self): + s = 'Welcome to "Bob\'s Bar"' + self.assertEqual( + self.sub.substitute_xml(s, True), + '"Welcome to "Bob\'s Bar""') + + def test_xml_quotes_arent_escaped_when_value_is_not_being_quoted(self): + quoted = 'Welcome to "Bob\'s Bar"' + self.assertEqual(self.sub.substitute_xml(quoted), quoted) + + def test_xml_quoting_handles_angle_brackets(self): + self.assertEqual( + self.sub.substitute_xml("foo<bar>"), + "foo<bar>") + + def test_xml_quoting_handles_ampersands(self): + self.assertEqual(self.sub.substitute_xml("AT&T"), "AT&T") + + def test_xml_quoting_including_ampersands_when_they_are_part_of_an_entity(self): + self.assertEqual( + self.sub.substitute_xml("ÁT&T"), + "&Aacute;T&T") + + def test_xml_quoting_ignoring_ampersands_when_they_are_part_of_an_entity(self): + self.assertEqual( + self.sub.substitute_xml_containing_entities("ÁT&T"), + "ÁT&T") + + def test_quotes_not_html_substituted(self): + """There's no need to do this except inside attribute values.""" + text = 'Bob\'s "bar"' + self.assertEqual(self.sub.substitute_html(text), text) + + +class TestEncodingConversion(SoupTest): + # Test Beautiful Soup's ability to decode and encode from various + # encodings. + + def setUp(self): + super(TestEncodingConversion, self).setUp() + self.unicode_data = u'<html><head><meta charset="utf-8"/></head><body><foo>Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!</foo></body></html>' + self.utf8_data = self.unicode_data.encode("utf-8") + # Just so you know what it looks like. + self.assertEqual( + self.utf8_data, + b'<html><head><meta charset="utf-8"/></head><body><foo>Sacr\xc3\xa9 bleu!</foo></body></html>') + + def test_ascii_in_unicode_out(self): + # ASCII input is converted to Unicode. The original_encoding + # attribute is set to 'utf-8', a superset of ASCII. + chardet = bs4.dammit.chardet_dammit + logging.disable(logging.WARNING) + try: + def noop(str): + return None + # Disable chardet, which will realize that the ASCII is ASCII. + bs4.dammit.chardet_dammit = noop + ascii = b"<foo>a</foo>" + soup_from_ascii = self.soup(ascii) + unicode_output = soup_from_ascii.decode() + self.assertTrue(isinstance(unicode_output, unicode)) + self.assertEqual(unicode_output, self.document_for(ascii.decode())) + self.assertEqual(soup_from_ascii.original_encoding.lower(), "utf-8") + finally: + logging.disable(logging.NOTSET) + bs4.dammit.chardet_dammit = chardet + + def test_unicode_in_unicode_out(self): + # Unicode input is left alone. The original_encoding attribute + # is not set. + soup_from_unicode = self.soup(self.unicode_data) + self.assertEqual(soup_from_unicode.decode(), self.unicode_data) + self.assertEqual(soup_from_unicode.foo.string, u'Sacr\xe9 bleu!') + self.assertEqual(soup_from_unicode.original_encoding, None) + + def test_utf8_in_unicode_out(self): + # UTF-8 input is converted to Unicode. The original_encoding + # attribute is set. + soup_from_utf8 = self.soup(self.utf8_data) + self.assertEqual(soup_from_utf8.decode(), self.unicode_data) + self.assertEqual(soup_from_utf8.foo.string, u'Sacr\xe9 bleu!') + + def test_utf8_out(self): + # The internal data structures can be encoded as UTF-8. + soup_from_unicode = self.soup(self.unicode_data) + self.assertEqual(soup_from_unicode.encode('utf-8'), self.utf8_data) + + @skipIf( + PYTHON_2_PRE_2_7 or PYTHON_3_PRE_3_2, + "Bad HTMLParser detected; skipping test of non-ASCII characters in attribute name.") + def test_attribute_name_containing_unicode_characters(self): + markup = u'<div><a \N{SNOWMAN}="snowman"></a></div>' + self.assertEqual(self.soup(markup).div.encode("utf8"), markup.encode("utf8")) + +class TestUnicodeDammit(unittest.TestCase): + """Standalone tests of UnicodeDammit.""" + + def test_unicode_input(self): + markup = u"I'm already Unicode! \N{SNOWMAN}" + dammit = UnicodeDammit(markup) + self.assertEqual(dammit.unicode_markup, markup) + + def test_smart_quotes_to_unicode(self): + markup = b"<foo>\x91\x92\x93\x94</foo>" + dammit = UnicodeDammit(markup) + self.assertEqual( + dammit.unicode_markup, u"<foo>\u2018\u2019\u201c\u201d</foo>") + + def test_smart_quotes_to_xml_entities(self): + markup = b"<foo>\x91\x92\x93\x94</foo>" + dammit = UnicodeDammit(markup, smart_quotes_to="xml") + self.assertEqual( + dammit.unicode_markup, "<foo>‘’“”</foo>") + + def test_smart_quotes_to_html_entities(self): + markup = b"<foo>\x91\x92\x93\x94</foo>" + dammit = UnicodeDammit(markup, smart_quotes_to="html") + self.assertEqual( + dammit.unicode_markup, "<foo>‘’“”</foo>") + + def test_smart_quotes_to_ascii(self): + markup = b"<foo>\x91\x92\x93\x94</foo>" + dammit = UnicodeDammit(markup, smart_quotes_to="ascii") + self.assertEqual( + dammit.unicode_markup, """<foo>''""</foo>""") + + def test_detect_utf8(self): + utf8 = b"\xc3\xa9" + dammit = UnicodeDammit(utf8) + self.assertEqual(dammit.unicode_markup, u'\xe9') + self.assertEqual(dammit.original_encoding.lower(), 'utf-8') + + def test_convert_hebrew(self): + hebrew = b"\xed\xe5\xec\xf9" + dammit = UnicodeDammit(hebrew, ["iso-8859-8"]) + self.assertEqual(dammit.original_encoding.lower(), 'iso-8859-8') + self.assertEqual(dammit.unicode_markup, u'\u05dd\u05d5\u05dc\u05e9') + + def test_dont_see_smart_quotes_where_there_are_none(self): + utf_8 = b"\343\202\261\343\203\274\343\202\277\343\202\244 Watch" + dammit = UnicodeDammit(utf_8) + self.assertEqual(dammit.original_encoding.lower(), 'utf-8') + self.assertEqual(dammit.unicode_markup.encode("utf-8"), utf_8) + + def test_ignore_inappropriate_codecs(self): + utf8_data = u"Räksmörgås".encode("utf-8") + dammit = UnicodeDammit(utf8_data, ["iso-8859-8"]) + self.assertEqual(dammit.original_encoding.lower(), 'utf-8') + + def test_ignore_invalid_codecs(self): + utf8_data = u"Räksmörgås".encode("utf-8") + for bad_encoding in ['.utf8', '...', 'utF---16.!']: + dammit = UnicodeDammit(utf8_data, [bad_encoding]) + self.assertEqual(dammit.original_encoding.lower(), 'utf-8') + + def test_detect_html5_style_meta_tag(self): + + for data in ( + b'<html><meta charset="euc-jp" /></html>', + b"<html><meta charset='euc-jp' /></html>", + b"<html><meta charset=euc-jp /></html>", + b"<html><meta charset=euc-jp/></html>"): + dammit = UnicodeDammit(data, is_html=True) + self.assertEqual( + "euc-jp", dammit.original_encoding) + + def test_last_ditch_entity_replacement(self): + # This is a UTF-8 document that contains bytestrings + # completely incompatible with UTF-8 (ie. encoded with some other + # encoding). + # + # Since there is no consistent encoding for the document, + # Unicode, Dammit will eventually encode the document as UTF-8 + # and encode the incompatible characters as REPLACEMENT + # CHARACTER. + # + # If chardet is installed, it will detect that the document + # can be converted into ISO-8859-1 without errors. This happens + # to be the wrong encoding, but it is a consistent encoding, so the + # code we're testing here won't run. + # + # So we temporarily disable chardet if it's present. + doc = b"""\357\273\277<?xml version="1.0" encoding="UTF-8"?> +<html><b>\330\250\330\252\330\261</b> +<i>\310\322\321\220\312\321\355\344</i></html>""" + chardet = bs4.dammit.chardet_dammit + logging.disable(logging.WARNING) + try: + def noop(str): + return None + bs4.dammit.chardet_dammit = noop + dammit = UnicodeDammit(doc) + self.assertEqual(True, dammit.contains_replacement_characters) + self.assertTrue(u"\ufffd" in dammit.unicode_markup) + + soup = BeautifulSoup(doc, "html.parser") + self.assertTrue(soup.contains_replacement_characters) + finally: + logging.disable(logging.NOTSET) + bs4.dammit.chardet_dammit = chardet + + def test_byte_order_mark_removed(self): + # A document written in UTF-16LE will have its byte order marker stripped. + data = b'\xff\xfe<\x00a\x00>\x00\xe1\x00\xe9\x00<\x00/\x00a\x00>\x00' + dammit = UnicodeDammit(data) + self.assertEqual(u"<a>áé</a>", dammit.unicode_markup) + self.assertEqual("utf-16le", dammit.original_encoding) + + def test_detwingle(self): + # Here's a UTF8 document. + utf8 = (u"\N{SNOWMAN}" * 3).encode("utf8") + + # Here's a Windows-1252 document. + windows_1252 = ( + u"\N{LEFT DOUBLE QUOTATION MARK}Hi, I like Windows!" + u"\N{RIGHT DOUBLE QUOTATION MARK}").encode("windows_1252") + + # Through some unholy alchemy, they've been stuck together. + doc = utf8 + windows_1252 + utf8 + + # The document can't be turned into UTF-8: + self.assertRaises(UnicodeDecodeError, doc.decode, "utf8") + + # Unicode, Dammit thinks the whole document is Windows-1252, + # and decodes it into "☃☃☃“Hi, I like Windows!”☃☃☃" + + # But if we run it through fix_embedded_windows_1252, it's fixed: + + fixed = UnicodeDammit.detwingle(doc) + self.assertEqual( + u"☃☃☃“Hi, I like Windows!”☃☃☃", fixed.decode("utf8")) + + def test_detwingle_ignores_multibyte_characters(self): + # Each of these characters has a UTF-8 representation ending + # in \x93. \x93 is a smart quote if interpreted as + # Windows-1252. But our code knows to skip over multibyte + # UTF-8 characters, so they'll survive the process unscathed. + for tricky_unicode_char in ( + u"\N{LATIN SMALL LIGATURE OE}", # 2-byte char '\xc5\x93' + u"\N{LATIN SUBSCRIPT SMALL LETTER X}", # 3-byte char '\xe2\x82\x93' + u"\xf0\x90\x90\x93", # This is a CJK character, not sure which one. + ): + input = tricky_unicode_char.encode("utf8") + self.assertTrue(input.endswith(b'\x93')) + output = UnicodeDammit.detwingle(input) + self.assertEqual(output, input) + +class TestNamedspacedAttribute(SoupTest): + + def test_name_may_be_none(self): + a = NamespacedAttribute("xmlns", None) + self.assertEqual(a, "xmlns") + + def test_attribute_is_equivalent_to_colon_separated_string(self): + a = NamespacedAttribute("a", "b") + self.assertEqual("a:b", a) + + def test_attributes_are_equivalent_if_prefix_and_name_identical(self): + a = NamespacedAttribute("a", "b", "c") + b = NamespacedAttribute("a", "b", "c") + self.assertEqual(a, b) + + # The actual namespace is not considered. + c = NamespacedAttribute("a", "b", None) + self.assertEqual(a, c) + + # But name and prefix are important. + d = NamespacedAttribute("a", "z", "c") + self.assertNotEqual(a, d) + + e = NamespacedAttribute("z", "b", "c") + self.assertNotEqual(a, e) + + +class TestAttributeValueWithCharsetSubstitution(unittest.TestCase): + + def test_content_meta_attribute_value(self): + value = CharsetMetaAttributeValue("euc-jp") + self.assertEqual("euc-jp", value) + self.assertEqual("euc-jp", value.original_value) + self.assertEqual("utf8", value.encode("utf8")) + + + def test_content_meta_attribute_value(self): + value = ContentMetaAttributeValue("text/html; charset=euc-jp") + self.assertEqual("text/html; charset=euc-jp", value) + self.assertEqual("text/html; charset=euc-jp", value.original_value) + self.assertEqual("text/html; charset=utf8", value.encode("utf8")) diff --git a/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_tree.py b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_tree.py new file mode 100644 index 000000000..f8515c0ea --- /dev/null +++ b/import-layers/yocto-poky/bitbake/lib/bs4/tests/test_tree.py @@ -0,0 +1,1829 @@ +# -*- coding: utf-8 -*- +"""Tests for Beautiful Soup's tree traversal methods. + +The tree traversal methods are the main advantage of using Beautiful +Soup over just using a parser. + +Different parsers will build different Beautiful Soup trees given the +same markup, but all Beautiful Soup trees can be traversed with the +methods tested here. +""" + +import copy +import pickle +import re +import warnings +from bs4 import BeautifulSoup +from bs4.builder import ( + builder_registry, + HTMLParserTreeBuilder, +) +from bs4.element import ( + CData, + Comment, + Doctype, + NavigableString, + SoupStrainer, + Tag, +) +from bs4.testing import ( + SoupTest, + skipIf, +) + +XML_BUILDER_PRESENT = (builder_registry.lookup("xml") is not None) +LXML_PRESENT = (builder_registry.lookup("lxml") is not None) + +class TreeTest(SoupTest): + + def assertSelects(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. + """ + self.assertEqual([tag.string for tag in tags], should_match) + + def assertSelectsIDs(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. + """ + self.assertEqual([tag['id'] for tag in tags], should_match) + + +class TestFind(TreeTest): + """Basic tests of the find() method. + + find() just calls find_all() with limit=1, so it's not tested all + that thouroughly here. + """ + + def test_find_tag(self): + soup = self.soup("<a>1</a><b>2</b><a>3</a><b>4</b>") + self.assertEqual(soup.find("b").string, "2") + + def test_unicode_text_find(self): + soup = self.soup(u'<h1>Räksmörgås</h1>') + self.assertEqual(soup.find(text=u'Räksmörgås'), u'Räksmörgås') + + def test_find_everything(self): + """Test an optimization that finds all tags.""" + soup = self.soup("<a>foo</a><b>bar</b>") + self.assertEqual(2, len(soup.find_all())) + + def test_find_everything_with_name(self): + """Test an optimization that finds all tags with a given name.""" + soup = self.soup("<a>foo</a><b>bar</b><a>baz</a>") + self.assertEqual(2, len(soup.find_all('a'))) + +class TestFindAll(TreeTest): + """Basic tests of the find_all() method.""" + + def test_find_all_text_nodes(self): + """You can search the tree for text nodes.""" + soup = self.soup("<html>Foo<b>bar</b>\xbb</html>") + # Exact match. + self.assertEqual(soup.find_all(text="bar"), [u"bar"]) + # Match any of a number of strings. + self.assertEqual( + soup.find_all(text=["Foo", "bar"]), [u"Foo", u"bar"]) + # Match a regular expression. + self.assertEqual(soup.find_all(text=re.compile('.*')), + [u"Foo", u"bar", u'\xbb']) + # Match anything. + self.assertEqual(soup.find_all(text=True), + [u"Foo", u"bar", u'\xbb']) + + def test_find_all_limit(self): + """You can limit the number of items returned by find_all.""" + soup = self.soup("<a>1</a><a>2</a><a>3</a><a>4</a><a>5</a>") + self.assertSelects(soup.find_all('a', limit=3), ["1", "2", "3"]) + self.assertSelects(soup.find_all('a', limit=1), ["1"]) + self.assertSelects( + soup.find_all('a', limit=10), ["1", "2", "3", "4", "5"]) + + # A limit of 0 means no limit. + self.assertSelects( + soup.find_all('a', limit=0), ["1", "2", "3", "4", "5"]) + + def test_calling_a_tag_is_calling_findall(self): + soup = self.soup("<a>1</a><b>2<a id='foo'>3</a></b>") + self.assertSelects(soup('a', limit=1), ["1"]) + self.assertSelects(soup.b(id="foo"), ["3"]) + + def test_find_all_with_self_referential_data_structure_does_not_cause_infinite_recursion(self): + soup = self.soup("<a></a>") + # Create a self-referential list. + l = [] + l.append(l) + + # Without special code in _normalize_search_value, this would cause infinite + # recursion. + self.assertEqual([], soup.find_all(l)) + + def test_find_all_resultset(self): + """All find_all calls return a ResultSet""" + soup = self.soup("<a></a>") + result = soup.find_all("a") + self.assertTrue(hasattr(result, "source")) + + result = soup.find_all(True) + self.assertTrue(hasattr(result, "source")) + + result = soup.find_all(text="foo") + self.assertTrue(hasattr(result, "source")) + + +class TestFindAllBasicNamespaces(TreeTest): + + def test_find_by_namespaced_name(self): + soup = self.soup('<mathml:msqrt>4</mathml:msqrt><a svg:fill="red">') + self.assertEqual("4", soup.find("mathml:msqrt").string) + self.assertEqual("a", soup.find(attrs= { "svg:fill" : "red" }).name) + + +class TestFindAllByName(TreeTest): + """Test ways of finding tags by tag name.""" + + def setUp(self): + super(TreeTest, self).setUp() + self.tree = self.soup("""<a>First tag.</a> + <b>Second tag.</b> + <c>Third <a>Nested tag.</a> tag.</c>""") + + def test_find_all_by_tag_name(self): + # Find all the <a> tags. + self.assertSelects( + self.tree.find_all('a'), ['First tag.', 'Nested tag.']) + + def test_find_all_by_name_and_text(self): + self.assertSelects( + self.tree.find_all('a', text='First tag.'), ['First tag.']) + + self.assertSelects( + self.tree.find_all('a', text=True), ['First tag.', 'Nested tag.']) + + self.assertSelects( + self.tree.find_all('a', text=re.compile("tag")), + ['First tag.', 'Nested tag.']) + + + def test_find_all_on_non_root_element(self): + # You can call find_all on any node, not just the root. + self.assertSelects(self.tree.c.find_all('a'), ['Nested tag.']) + + def test_calling_element_invokes_find_all(self): + self.assertSelects(self.tree('a'), ['First tag.', 'Nested tag.']) + + def test_find_all_by_tag_strainer(self): + self.assertSelects( + self.tree.find_all(SoupStrainer('a')), + ['First tag.', 'Nested tag.']) + + def test_find_all_by_tag_names(self): + self.assertSelects( + self.tree.find_all(['a', 'b']), + ['First tag.', 'Second tag.', 'Nested tag.']) + + def test_find_all_by_tag_dict(self): + self.assertSelects( + self.tree.find_all({'a' : True, 'b' : True}), + ['First tag.', 'Second tag.', 'Nested tag.']) + + def test_find_all_by_tag_re(self): + self.assertSelects( + self.tree.find_all(re.compile('^[ab]$')), + ['First tag.', 'Second tag.', 'Nested tag.']) + + def test_find_all_with_tags_matching_method(self): + # You can define an oracle method that determines whether + # a tag matches the search. + def id_matches_name(tag): + return tag.name == tag.get('id') + + tree = self.soup("""<a id="a">Match 1.</a> + <a id="1">Does not match.</a> + <b id="b">Match 2.</a>""") + + self.assertSelects( + tree.find_all(id_matches_name), ["Match 1.", "Match 2."]) + + +class TestFindAllByAttribute(TreeTest): + + def test_find_all_by_attribute_name(self): + # You can pass in keyword arguments to find_all to search by + # attribute. + tree = self.soup(""" + <a id="first">Matching a.</a> + <a id="second"> + Non-matching <b id="first">Matching b.</b>a. + </a>""") + self.assertSelects(tree.find_all(id='first'), + ["Matching a.", "Matching b."]) + + def test_find_all_by_utf8_attribute_value(self): + peace = u"םולש".encode("utf8") + data = u'<a title="םולש"></a>'.encode("utf8") + soup = self.soup(data) + self.assertEqual([soup.a], soup.find_all(title=peace)) + self.assertEqual([soup.a], soup.find_all(title=peace.decode("utf8"))) + self.assertEqual([soup.a], soup.find_all(title=[peace, "something else"])) + + def test_find_all_by_attribute_dict(self): + # You can pass in a dictionary as the argument 'attrs'. This + # lets you search for attributes like 'name' (a fixed argument + # to find_all) and 'class' (a reserved word in Python.) + tree = self.soup(""" + <a name="name1" class="class1">Name match.</a> + <a name="name2" class="class2">Class match.</a> + <a name="name3" class="class3">Non-match.</a> + <name1>A tag called 'name1'.</name1> + """) + + # This doesn't do what you want. + self.assertSelects(tree.find_all(name='name1'), + ["A tag called 'name1'."]) + # This does what you want. + self.assertSelects(tree.find_all(attrs={'name' : 'name1'}), + ["Name match."]) + + self.assertSelects(tree.find_all(attrs={'class' : 'class2'}), + ["Class match."]) + + def test_find_all_by_class(self): + tree = self.soup(""" + <a class="1">Class 1.</a> + <a class="2">Class 2.</a> + <b class="1">Class 1.</b> + <c class="3 4">Class 3 and 4.</c> + """) + + # Passing in the class_ keyword argument will search against + # the 'class' attribute. + self.assertSelects(tree.find_all('a', class_='1'), ['Class 1.']) + self.assertSelects(tree.find_all('c', class_='3'), ['Class 3 and 4.']) + self.assertSelects(tree.find_all('c', class_='4'), ['Class 3 and 4.']) + + # Passing in a string to 'attrs' will also search the CSS class. + self.assertSelects(tree.find_all('a', '1'), ['Class 1.']) + self.assertSelects(tree.find_all(attrs='1'), ['Class 1.', 'Class 1.']) + self.assertSelects(tree.find_all('c', '3'), ['Class 3 and 4.']) + self.assertSelects(tree.find_all('c', '4'), ['Class 3 and 4.']) + + def test_find_by_class_when_multiple_classes_present(self): + tree = self.soup("<gar class='foo bar'>Found it</gar>") + + f = tree.find_all("gar", class_=re.compile("o")) + self.assertSelects(f, ["Found it"]) + + f = tree.find_all("gar", class_=re.compile("a")) + self.assertSelects(f, ["Found it"]) + + # Since the class is not the string "foo bar", but the two + # strings "foo" and "bar", this will not find anything. + f = tree.find_all("gar", class_=re.compile("o b")) + self.assertSelects(f, []) + + def test_find_all_with_non_dictionary_for_attrs_finds_by_class(self): + soup = self.soup("<a class='bar'>Found it</a>") + + self.assertSelects(soup.find_all("a", re.compile("ba")), ["Found it"]) + + def big_attribute_value(value): + return len(value) > 3 + + self.assertSelects(soup.find_all("a", big_attribute_value), []) + + def small_attribute_value(value): + return len(value) <= 3 + + self.assertSelects( + soup.find_all("a", small_attribute_value), ["Found it"]) + + def test_find_all_with_string_for_attrs_finds_multiple_classes(self): + soup = self.soup('<a class="foo bar"></a><a class="foo"></a>') + a, a2 = soup.find_all("a") + self.assertEqual([a, a2], soup.find_all("a", "foo")) + self.assertEqual([a], soup.find_all("a", "bar")) + + # If you specify the class as a string that contains a + # space, only that specific value will be found. + self.assertEqual([a], soup.find_all("a", class_="foo bar")) + self.assertEqual([a], soup.find_all("a", "foo bar")) + self.assertEqual([], soup.find_all("a", "bar foo")) + + def test_find_all_by_attribute_soupstrainer(self): + tree = self.soup(""" + <a id="first">Match.</a> + <a id="second">Non-match.</a>""") + + strainer = SoupStrainer(attrs={'id' : 'first'}) + self.assertSelects(tree.find_all(strainer), ['Match.']) + + def test_find_all_with_missing_atribute(self): + # You can pass in None as the value of an attribute to find_all. + # This will match tags that do not have that attribute set. + tree = self.soup("""<a id="1">ID present.</a> + <a>No ID present.</a> + <a id="">ID is empty.</a>""") + self.assertSelects(tree.find_all('a', id=None), ["No ID present."]) + + def test_find_all_with_defined_attribute(self): + # You can pass in None as the value of an attribute to find_all. + # This will match tags that have that attribute set to any value. + tree = self.soup("""<a id="1">ID present.</a> + <a>No ID present.</a> + <a id="">ID is empty.</a>""") + self.assertSelects( + tree.find_all(id=True), ["ID present.", "ID is empty."]) + + def test_find_all_with_numeric_attribute(self): + # If you search for a number, it's treated as a string. + tree = self.soup("""<a id=1>Unquoted attribute.</a> + <a id="1">Quoted attribute.</a>""") + + expected = ["Unquoted attribute.", "Quoted attribute."] + self.assertSelects(tree.find_all(id=1), expected) + self.assertSelects(tree.find_all(id="1"), expected) + + def test_find_all_with_list_attribute_values(self): + # You can pass a list of attribute values instead of just one, + # and you'll get tags that match any of the values. + tree = self.soup("""<a id="1">1</a> + <a id="2">2</a> + <a id="3">3</a> + <a>No ID.</a>""") + self.assertSelects(tree.find_all(id=["1", "3", "4"]), + ["1", "3"]) + + def test_find_all_with_regular_expression_attribute_value(self): + # You can pass a regular expression as an attribute value, and + # you'll get tags whose values for that attribute match the + # regular expression. + tree = self.soup("""<a id="a">One a.</a> + <a id="aa">Two as.</a> + <a id="ab">Mixed as and bs.</a> + <a id="b">One b.</a> + <a>No ID.</a>""") + + self.assertSelects(tree.find_all(id=re.compile("^a+$")), + ["One a.", "Two as."]) + + def test_find_by_name_and_containing_string(self): + soup = self.soup("<b>foo</b><b>bar</b><a>foo</a>") + a = soup.a + + self.assertEqual([a], soup.find_all("a", text="foo")) + self.assertEqual([], soup.find_all("a", text="bar")) + self.assertEqual([], soup.find_all("a", text="bar")) + + def test_find_by_name_and_containing_string_when_string_is_buried(self): + soup = self.soup("<a>foo</a><a><b><c>foo</c></b></a>") + self.assertEqual(soup.find_all("a"), soup.find_all("a", text="foo")) + + def test_find_by_attribute_and_containing_string(self): + soup = self.soup('<b id="1">foo</b><a id="2">foo</a>') + a = soup.a + + self.assertEqual([a], soup.find_all(id=2, text="foo")) + self.assertEqual([], soup.find_all(id=1, text="bar")) + + + + +class TestIndex(TreeTest): + """Test Tag.index""" + def test_index(self): + tree = self.soup("""<div> + <a>Identical</a> + <b>Not identical</b> + <a>Identical</a> + + <c><d>Identical with child</d></c> + <b>Also not identical</b> + <c><d>Identical with child</d></c> + </div>""") + div = tree.div + for i, element in enumerate(div.contents): + self.assertEqual(i, div.index(element)) + self.assertRaises(ValueError, tree.index, 1) + + +class TestParentOperations(TreeTest): + """Test navigation and searching through an element's parents.""" + + def setUp(self): + super(TestParentOperations, self).setUp() + self.tree = self.soup('''<ul id="empty"></ul> + <ul id="top"> + <ul id="middle"> + <ul id="bottom"> + <b>Start here</b> + </ul> + </ul>''') + self.start = self.tree.b + + + def test_parent(self): + self.assertEqual(self.start.parent['id'], 'bottom') + self.assertEqual(self.start.parent.parent['id'], 'middle') + self.assertEqual(self.start.parent.parent.parent['id'], 'top') + + def test_parent_of_top_tag_is_soup_object(self): + top_tag = self.tree.contents[0] + self.assertEqual(top_tag.parent, self.tree) + + def test_soup_object_has_no_parent(self): + self.assertEqual(None, self.tree.parent) + + def test_find_parents(self): + self.assertSelectsIDs( + self.start.find_parents('ul'), ['bottom', 'middle', 'top']) + self.assertSelectsIDs( + self.start.find_parents('ul', id="middle"), ['middle']) + + def test_find_parent(self): + self.assertEqual(self.start.find_parent('ul')['id'], 'bottom') + self.assertEqual(self.start.find_parent('ul', id='top')['id'], 'top') + + def test_parent_of_text_element(self): + text = self.tree.find(text="Start here") + self.assertEqual(text.parent.name, 'b') + + def test_text_element_find_parent(self): + text = self.tree.find(text="Start here") + self.assertEqual(text.find_parent('ul')['id'], 'bottom') + + def test_parent_generator(self): + parents = [parent['id'] for parent in self.start.parents + if parent is not None and 'id' in parent.attrs] + self.assertEqual(parents, ['bottom', 'middle', 'top']) + + +class ProximityTest(TreeTest): + + def setUp(self): + super(TreeTest, self).setUp() + self.tree = self.soup( + '<html id="start"><head></head><body><b id="1">One</b><b id="2">Two</b><b id="3">Three</b></body></html>') + + +class TestNextOperations(ProximityTest): + + def setUp(self): + super(TestNextOperations, self).setUp() + self.start = self.tree.b + + def test_next(self): + self.assertEqual(self.start.next_element, "One") + self.assertEqual(self.start.next_element.next_element['id'], "2") + + def test_next_of_last_item_is_none(self): + last = self.tree.find(text="Three") + self.assertEqual(last.next_element, None) + + def test_next_of_root_is_none(self): + # The document root is outside the next/previous chain. + self.assertEqual(self.tree.next_element, None) + + def test_find_all_next(self): + self.assertSelects(self.start.find_all_next('b'), ["Two", "Three"]) + self.start.find_all_next(id=3) + self.assertSelects(self.start.find_all_next(id=3), ["Three"]) + + def test_find_next(self): + self.assertEqual(self.start.find_next('b')['id'], '2') + self.assertEqual(self.start.find_next(text="Three"), "Three") + + def test_find_next_for_text_element(self): + text = self.tree.find(text="One") + self.assertEqual(text.find_next("b").string, "Two") + self.assertSelects(text.find_all_next("b"), ["Two", "Three"]) + + def test_next_generator(self): + start = self.tree.find(text="Two") + successors = [node for node in start.next_elements] + # There are two successors: the final <b> tag and its text contents. + tag, contents = successors + self.assertEqual(tag['id'], '3') + self.assertEqual(contents, "Three") + +class TestPreviousOperations(ProximityTest): + + def setUp(self): + super(TestPreviousOperations, self).setUp() + self.end = self.tree.find(text="Three") + + def test_previous(self): + self.assertEqual(self.end.previous_element['id'], "3") + self.assertEqual(self.end.previous_element.previous_element, "Two") + + def test_previous_of_first_item_is_none(self): + first = self.tree.find('html') + self.assertEqual(first.previous_element, None) + + def test_previous_of_root_is_none(self): + # The document root is outside the next/previous chain. + # XXX This is broken! + #self.assertEqual(self.tree.previous_element, None) + pass + + def test_find_all_previous(self): + # The <b> tag containing the "Three" node is the predecessor + # of the "Three" node itself, which is why "Three" shows up + # here. + self.assertSelects( + self.end.find_all_previous('b'), ["Three", "Two", "One"]) + self.assertSelects(self.end.find_all_previous(id=1), ["One"]) + + def test_find_previous(self): + self.assertEqual(self.end.find_previous('b')['id'], '3') + self.assertEqual(self.end.find_previous(text="One"), "One") + + def test_find_previous_for_text_element(self): + text = self.tree.find(text="Three") + self.assertEqual(text.find_previous("b").string, "Three") + self.assertSelects( + text.find_all_previous("b"), ["Three", "Two", "One"]) + + def test_previous_generator(self): + start = self.tree.find(text="One") + predecessors = [node for node in start.previous_elements] + + # There are four predecessors: the <b> tag containing "One" + # the <body> tag, the <head> tag, and the <html> tag. + b, body, head, html = predecessors + self.assertEqual(b['id'], '1') + self.assertEqual(body.name, "body") + self.assertEqual(head.name, "head") + self.assertEqual(html.name, "html") + + +class SiblingTest(TreeTest): + + def setUp(self): + super(SiblingTest, self).setUp() + markup = '''<html> + <span id="1"> + <span id="1.1"></span> + </span> + <span id="2"> + <span id="2.1"></span> + </span> + <span id="3"> + <span id="3.1"></span> + </span> + <span id="4"></span> + </html>''' + # All that whitespace looks good but makes the tests more + # difficult. Get rid of it. + markup = re.compile("\n\s*").sub("", markup) + self.tree = self.soup(markup) + + +class TestNextSibling(SiblingTest): + + def setUp(self): + super(TestNextSibling, self).setUp() + self.start = self.tree.find(id="1") + + def test_next_sibling_of_root_is_none(self): + self.assertEqual(self.tree.next_sibling, None) + + def test_next_sibling(self): + self.assertEqual(self.start.next_sibling['id'], '2') + self.assertEqual(self.start.next_sibling.next_sibling['id'], '3') + + # Note the difference between next_sibling and next_element. + self.assertEqual(self.start.next_element['id'], '1.1') + + def test_next_sibling_may_not_exist(self): + self.assertEqual(self.tree.html.next_sibling, None) + + nested_span = self.tree.find(id="1.1") + self.assertEqual(nested_span.next_sibling, None) + + last_span = self.tree.find(id="4") + self.assertEqual(last_span.next_sibling, None) + + def test_find_next_sibling(self): + self.assertEqual(self.start.find_next_sibling('span')['id'], '2') + + def test_next_siblings(self): + self.assertSelectsIDs(self.start.find_next_siblings("span"), + ['2', '3', '4']) + + self.assertSelectsIDs(self.start.find_next_siblings(id='3'), ['3']) + + def test_next_sibling_for_text_element(self): + soup = self.soup("Foo<b>bar</b>baz") + start = soup.find(text="Foo") + self.assertEqual(start.next_sibling.name, 'b') + self.assertEqual(start.next_sibling.next_sibling, 'baz') + + self.assertSelects(start.find_next_siblings('b'), ['bar']) + self.assertEqual(start.find_next_sibling(text="baz"), "baz") + self.assertEqual(start.find_next_sibling(text="nonesuch"), None) + + +class TestPreviousSibling(SiblingTest): + + def setUp(self): + super(TestPreviousSibling, self).setUp() + self.end = self.tree.find(id="4") + + def test_previous_sibling_of_root_is_none(self): + self.assertEqual(self.tree.previous_sibling, None) + + def test_previous_sibling(self): + self.assertEqual(self.end.previous_sibling['id'], '3') + self.assertEqual(self.end.previous_sibling.previous_sibling['id'], '2') + + # Note the difference between previous_sibling and previous_element. + self.assertEqual(self.end.previous_element['id'], '3.1') + + def test_previous_sibling_may_not_exist(self): + self.assertEqual(self.tree.html.previous_sibling, None) + + nested_span = self.tree.find(id="1.1") + self.assertEqual(nested_span.previous_sibling, None) + + first_span = self.tree.find(id="1") + self.assertEqual(first_span.previous_sibling, None) + + def test_find_previous_sibling(self): + self.assertEqual(self.end.find_previous_sibling('span')['id'], '3') + + def test_previous_siblings(self): + self.assertSelectsIDs(self.end.find_previous_siblings("span"), + ['3', '2', '1']) + + self.assertSelectsIDs(self.end.find_previous_siblings(id='1'), ['1']) + + def test_previous_sibling_for_text_element(self): + soup = self.soup("Foo<b>bar</b>baz") + start = soup.find(text="baz") + self.assertEqual(start.previous_sibling.name, 'b') + self.assertEqual(start.previous_sibling.previous_sibling, 'Foo') + + self.assertSelects(start.find_previous_siblings('b'), ['bar']) + self.assertEqual(start.find_previous_sibling(text="Foo"), "Foo") + self.assertEqual(start.find_previous_sibling(text="nonesuch"), None) + + +class TestTagCreation(SoupTest): + """Test the ability to create new tags.""" + def test_new_tag(self): + soup = self.soup("") + new_tag = soup.new_tag("foo", bar="baz") + self.assertTrue(isinstance(new_tag, Tag)) + self.assertEqual("foo", new_tag.name) + self.assertEqual(dict(bar="baz"), new_tag.attrs) + self.assertEqual(None, new_tag.parent) + + def test_tag_inherits_self_closing_rules_from_builder(self): + if XML_BUILDER_PRESENT: + xml_soup = BeautifulSoup("", "xml") + xml_br = xml_soup.new_tag("br") + xml_p = xml_soup.new_tag("p") + + # Both the <br> and <p> tag are empty-element, just because + # they have no contents. + self.assertEqual(b"<br/>", xml_br.encode()) + self.assertEqual(b"<p/>", xml_p.encode()) + + html_soup = BeautifulSoup("", "html") + html_br = html_soup.new_tag("br") + html_p = html_soup.new_tag("p") + + # The HTML builder users HTML's rules about which tags are + # empty-element tags, and the new tags reflect these rules. + self.assertEqual(b"<br/>", html_br.encode()) + self.assertEqual(b"<p></p>", html_p.encode()) + + def test_new_string_creates_navigablestring(self): + soup = self.soup("") + s = soup.new_string("foo") + self.assertEqual("foo", s) + self.assertTrue(isinstance(s, NavigableString)) + + def test_new_string_can_create_navigablestring_subclass(self): + soup = self.soup("") + s = soup.new_string("foo", Comment) + self.assertEqual("foo", s) + self.assertTrue(isinstance(s, Comment)) + +class TestTreeModification(SoupTest): + + def test_attribute_modification(self): + soup = self.soup('<a id="1"></a>') + soup.a['id'] = 2 + self.assertEqual(soup.decode(), self.document_for('<a id="2"></a>')) + del(soup.a['id']) + self.assertEqual(soup.decode(), self.document_for('<a></a>')) + soup.a['id2'] = 'foo' + self.assertEqual(soup.decode(), self.document_for('<a id2="foo"></a>')) + + def test_new_tag_creation(self): + builder = builder_registry.lookup('html')() + soup = self.soup("<body></body>", builder=builder) + a = Tag(soup, builder, 'a') + ol = Tag(soup, builder, 'ol') + a['href'] = 'http://foo.com/' + soup.body.insert(0, a) + soup.body.insert(1, ol) + self.assertEqual( + soup.body.encode(), + b'<body><a href="http://foo.com/"></a><ol></ol></body>') + + def test_append_to_contents_moves_tag(self): + doc = """<p id="1">Don't leave me <b>here</b>.</p> + <p id="2">Don\'t leave!</p>""" + soup = self.soup(doc) + second_para = soup.find(id='2') + bold = soup.b + + # Move the <b> tag to the end of the second paragraph. + soup.find(id='2').append(soup.b) + + # The <b> tag is now a child of the second paragraph. + self.assertEqual(bold.parent, second_para) + + self.assertEqual( + soup.decode(), self.document_for( + '<p id="1">Don\'t leave me .</p>\n' + '<p id="2">Don\'t leave!<b>here</b></p>')) + + def test_replace_with_returns_thing_that_was_replaced(self): + text = "<a></a><b><c></c></b>" + soup = self.soup(text) + a = soup.a + new_a = a.replace_with(soup.c) + self.assertEqual(a, new_a) + + def test_unwrap_returns_thing_that_was_replaced(self): + text = "<a><b></b><c></c></a>" + soup = self.soup(text) + a = soup.a + new_a = a.unwrap() + self.assertEqual(a, new_a) + + def test_replace_tag_with_itself(self): + text = "<a><b></b><c>Foo<d></d></c></a><a><e></e></a>" + soup = self.soup(text) + c = soup.c + soup.c.replace_with(c) + self.assertEqual(soup.decode(), self.document_for(text)) + + def test_replace_tag_with_its_parent_raises_exception(self): + text = "<a><b></b></a>" + soup = self.soup(text) + self.assertRaises(ValueError, soup.b.replace_with, soup.a) + + def test_insert_tag_into_itself_raises_exception(self): + text = "<a><b></b></a>" + soup = self.soup(text) + self.assertRaises(ValueError, soup.a.insert, 0, soup.a) + + def test_replace_with_maintains_next_element_throughout(self): + soup = self.soup('<p><a>one</a><b>three</b></p>') + a = soup.a + b = a.contents[0] + # Make it so the <a> tag has two text children. + a.insert(1, "two") + + # Now replace each one with the empty string. + left, right = a.contents + left.replaceWith('') + right.replaceWith('') + + # The <b> tag is still connected to the tree. + self.assertEqual("three", soup.b.string) + + def test_replace_final_node(self): + soup = self.soup("<b>Argh!</b>") + soup.find(text="Argh!").replace_with("Hooray!") + new_text = soup.find(text="Hooray!") + b = soup.b + self.assertEqual(new_text.previous_element, b) + self.assertEqual(new_text.parent, b) + self.assertEqual(new_text.previous_element.next_element, new_text) + self.assertEqual(new_text.next_element, None) + + def test_consecutive_text_nodes(self): + # A builder should never create two consecutive text nodes, + # but if you insert one next to another, Beautiful Soup will + # handle it correctly. + soup = self.soup("<a><b>Argh!</b><c></c></a>") + soup.b.insert(1, "Hooray!") + + self.assertEqual( + soup.decode(), self.document_for( + "<a><b>Argh!Hooray!</b><c></c></a>")) + + new_text = soup.find(text="Hooray!") + self.assertEqual(new_text.previous_element, "Argh!") + self.assertEqual(new_text.previous_element.next_element, new_text) + + self.assertEqual(new_text.previous_sibling, "Argh!") + self.assertEqual(new_text.previous_sibling.next_sibling, new_text) + + self.assertEqual(new_text.next_sibling, None) + self.assertEqual(new_text.next_element, soup.c) + + def test_insert_string(self): + soup = self.soup("<a></a>") + soup.a.insert(0, "bar") + soup.a.insert(0, "foo") + # The string were added to the tag. + self.assertEqual(["foo", "bar"], soup.a.contents) + # And they were converted to NavigableStrings. + self.assertEqual(soup.a.contents[0].next_element, "bar") + + def test_insert_tag(self): + builder = self.default_builder + soup = self.soup( + "<a><b>Find</b><c>lady!</c><d></d></a>", builder=builder) + magic_tag = Tag(soup, builder, 'magictag') + magic_tag.insert(0, "the") + soup.a.insert(1, magic_tag) + + self.assertEqual( + soup.decode(), self.document_for( + "<a><b>Find</b><magictag>the</magictag><c>lady!</c><d></d></a>")) + + # Make sure all the relationships are hooked up correctly. + b_tag = soup.b + self.assertEqual(b_tag.next_sibling, magic_tag) + self.assertEqual(magic_tag.previous_sibling, b_tag) + + find = b_tag.find(text="Find") + self.assertEqual(find.next_element, magic_tag) + self.assertEqual(magic_tag.previous_element, find) + + c_tag = soup.c + self.assertEqual(magic_tag.next_sibling, c_tag) + self.assertEqual(c_tag.previous_sibling, magic_tag) + + the = magic_tag.find(text="the") + self.assertEqual(the.parent, magic_tag) + self.assertEqual(the.next_element, c_tag) + self.assertEqual(c_tag.previous_element, the) + + def test_append_child_thats_already_at_the_end(self): + data = "<a><b></b></a>" + soup = self.soup(data) + soup.a.append(soup.b) + self.assertEqual(data, soup.decode()) + + def test_move_tag_to_beginning_of_parent(self): + data = "<a><b></b><c></c><d></d></a>" + soup = self.soup(data) + soup.a.insert(0, soup.d) + self.assertEqual("<a><d></d><b></b><c></c></a>", soup.decode()) + + def test_insert_works_on_empty_element_tag(self): + # This is a little strange, since most HTML parsers don't allow + # markup like this to come through. But in general, we don't + # know what the parser would or wouldn't have allowed, so + # I'm letting this succeed for now. + soup = self.soup("<br/>") + soup.br.insert(1, "Contents") + self.assertEqual(str(soup.br), "<br>Contents</br>") + + def test_insert_before(self): + soup = self.soup("<a>foo</a><b>bar</b>") + soup.b.insert_before("BAZ") + soup.a.insert_before("QUUX") + self.assertEqual( + soup.decode(), self.document_for("QUUX<a>foo</a>BAZ<b>bar</b>")) + + soup.a.insert_before(soup.b) + self.assertEqual( + soup.decode(), self.document_for("QUUX<b>bar</b><a>foo</a>BAZ")) + + def test_insert_after(self): + soup = self.soup("<a>foo</a><b>bar</b>") + soup.b.insert_after("BAZ") + soup.a.insert_after("QUUX") + self.assertEqual( + soup.decode(), self.document_for("<a>foo</a>QUUX<b>bar</b>BAZ")) + soup.b.insert_after(soup.a) + self.assertEqual( + soup.decode(), self.document_for("QUUX<b>bar</b><a>foo</a>BAZ")) + + def test_insert_after_raises_exception_if_after_has_no_meaning(self): + soup = self.soup("") + tag = soup.new_tag("a") + string = soup.new_string("") + self.assertRaises(ValueError, string.insert_after, tag) + self.assertRaises(NotImplementedError, soup.insert_after, tag) + self.assertRaises(ValueError, tag.insert_after, tag) + + def test_insert_before_raises_notimplementederror_if_before_has_no_meaning(self): + soup = self.soup("") + tag = soup.new_tag("a") + string = soup.new_string("") + self.assertRaises(ValueError, string.insert_before, tag) + self.assertRaises(NotImplementedError, soup.insert_before, tag) + self.assertRaises(ValueError, tag.insert_before, tag) + + def test_replace_with(self): + soup = self.soup( + "<p>There's <b>no</b> business like <b>show</b> business</p>") + no, show = soup.find_all('b') + show.replace_with(no) + self.assertEqual( + soup.decode(), + self.document_for( + "<p>There's business like <b>no</b> business</p>")) + + self.assertEqual(show.parent, None) + self.assertEqual(no.parent, soup.p) + self.assertEqual(no.next_element, "no") + self.assertEqual(no.next_sibling, " business") + + def test_replace_first_child(self): + data = "<a><b></b><c></c></a>" + soup = self.soup(data) + soup.b.replace_with(soup.c) + self.assertEqual("<a><c></c></a>", soup.decode()) + + def test_replace_last_child(self): + data = "<a><b></b><c></c></a>" + soup = self.soup(data) + soup.c.replace_with(soup.b) + self.assertEqual("<a><b></b></a>", soup.decode()) + + def test_nested_tag_replace_with(self): + soup = self.soup( + """<a>We<b>reserve<c>the</c><d>right</d></b></a><e>to<f>refuse</f><g>service</g></e>""") + + # Replace the entire <b> tag and its contents ("reserve the + # right") with the <f> tag ("refuse"). + remove_tag = soup.b + move_tag = soup.f + remove_tag.replace_with(move_tag) + + self.assertEqual( + soup.decode(), self.document_for( + "<a>We<f>refuse</f></a><e>to<g>service</g></e>")) + + # The <b> tag is now an orphan. + self.assertEqual(remove_tag.parent, None) + self.assertEqual(remove_tag.find(text="right").next_element, None) + self.assertEqual(remove_tag.previous_element, None) + self.assertEqual(remove_tag.next_sibling, None) + self.assertEqual(remove_tag.previous_sibling, None) + + # The <f> tag is now connected to the <a> tag. + self.assertEqual(move_tag.parent, soup.a) + self.assertEqual(move_tag.previous_element, "We") + self.assertEqual(move_tag.next_element.next_element, soup.e) + self.assertEqual(move_tag.next_sibling, None) + + # The gap where the <f> tag used to be has been mended, and + # the word "to" is now connected to the <g> tag. + to_text = soup.find(text="to") + g_tag = soup.g + self.assertEqual(to_text.next_element, g_tag) + self.assertEqual(to_text.next_sibling, g_tag) + self.assertEqual(g_tag.previous_element, to_text) + self.assertEqual(g_tag.previous_sibling, to_text) + + def test_unwrap(self): + tree = self.soup(""" + <p>Unneeded <em>formatting</em> is unneeded</p> + """) + tree.em.unwrap() + self.assertEqual(tree.em, None) + self.assertEqual(tree.p.text, "Unneeded formatting is unneeded") + + def test_wrap(self): + soup = self.soup("I wish I was bold.") + value = soup.string.wrap(soup.new_tag("b")) + self.assertEqual(value.decode(), "<b>I wish I was bold.</b>") + self.assertEqual( + soup.decode(), self.document_for("<b>I wish I was bold.</b>")) + + def test_wrap_extracts_tag_from_elsewhere(self): + soup = self.soup("<b></b>I wish I was bold.") + soup.b.next_sibling.wrap(soup.b) + self.assertEqual( + soup.decode(), self.document_for("<b>I wish I was bold.</b>")) + + def test_wrap_puts_new_contents_at_the_end(self): + soup = self.soup("<b>I like being bold.</b>I wish I was bold.") + soup.b.next_sibling.wrap(soup.b) + self.assertEqual(2, len(soup.b.contents)) + self.assertEqual( + soup.decode(), self.document_for( + "<b>I like being bold.I wish I was bold.</b>")) + + def test_extract(self): + soup = self.soup( + '<html><body>Some content. <div id="nav">Nav crap</div> More content.</body></html>') + + self.assertEqual(len(soup.body.contents), 3) + extracted = soup.find(id="nav").extract() + + self.assertEqual( + soup.decode(), "<html><body>Some content. More content.</body></html>") + self.assertEqual(extracted.decode(), '<div id="nav">Nav crap</div>') + + # The extracted tag is now an orphan. + self.assertEqual(len(soup.body.contents), 2) + self.assertEqual(extracted.parent, None) + self.assertEqual(extracted.previous_element, None) + self.assertEqual(extracted.next_element.next_element, None) + + # The gap where the extracted tag used to be has been mended. + content_1 = soup.find(text="Some content. ") + content_2 = soup.find(text=" More content.") + self.assertEqual(content_1.next_element, content_2) + self.assertEqual(content_1.next_sibling, content_2) + self.assertEqual(content_2.previous_element, content_1) + self.assertEqual(content_2.previous_sibling, content_1) + + def test_extract_distinguishes_between_identical_strings(self): + soup = self.soup("<a>foo</a><b>bar</b>") + foo_1 = soup.a.string + bar_1 = soup.b.string + foo_2 = soup.new_string("foo") + bar_2 = soup.new_string("bar") + soup.a.append(foo_2) + soup.b.append(bar_2) + + # Now there are two identical strings in the <a> tag, and two + # in the <b> tag. Let's remove the first "foo" and the second + # "bar". + foo_1.extract() + bar_2.extract() + self.assertEqual(foo_2, soup.a.string) + self.assertEqual(bar_2, soup.b.string) + + def test_clear(self): + """Tag.clear()""" + soup = self.soup("<p><a>String <em>Italicized</em></a> and another</p>") + # clear using extract() + a = soup.a + soup.p.clear() + self.assertEqual(len(soup.p.contents), 0) + self.assertTrue(hasattr(a, "contents")) + + # clear using decompose() + em = a.em + a.clear(decompose=True) + self.assertEqual(0, len(em.contents)) + + def test_string_set(self): + """Tag.string = 'string'""" + soup = self.soup("<a></a> <b><c></c></b>") + soup.a.string = "foo" + self.assertEqual(soup.a.contents, ["foo"]) + soup.b.string = "bar" + self.assertEqual(soup.b.contents, ["bar"]) + + def test_string_set_does_not_affect_original_string(self): + soup = self.soup("<a><b>foo</b><c>bar</c>") + soup.b.string = soup.c.string + self.assertEqual(soup.a.encode(), b"<a><b>bar</b><c>bar</c></a>") + + def test_set_string_preserves_class_of_string(self): + soup = self.soup("<a></a>") + cdata = CData("foo") + soup.a.string = cdata + self.assertTrue(isinstance(soup.a.string, CData)) + +class TestElementObjects(SoupTest): + """Test various features of element objects.""" + + def test_len(self): + """The length of an element is its number of children.""" + soup = self.soup("<top>1<b>2</b>3</top>") + + # The BeautifulSoup object itself contains one element: the + # <top> tag. + self.assertEqual(len(soup.contents), 1) + self.assertEqual(len(soup), 1) + + # The <top> tag contains three elements: the text node "1", the + # <b> tag, and the text node "3". + self.assertEqual(len(soup.top), 3) + self.assertEqual(len(soup.top.contents), 3) + + def test_member_access_invokes_find(self): + """Accessing a Python member .foo invokes find('foo')""" + soup = self.soup('<b><i></i></b>') + self.assertEqual(soup.b, soup.find('b')) + self.assertEqual(soup.b.i, soup.find('b').find('i')) + self.assertEqual(soup.a, None) + + def test_deprecated_member_access(self): + soup = self.soup('<b><i></i></b>') + with warnings.catch_warnings(record=True) as w: + tag = soup.bTag + self.assertEqual(soup.b, tag) + self.assertEqual( + '.bTag is deprecated, use .find("b") instead.', + str(w[0].message)) + + def test_has_attr(self): + """has_attr() checks for the presence of an attribute. + + Please note note: has_attr() is different from + __in__. has_attr() checks the tag's attributes and __in__ + checks the tag's chidlren. + """ + soup = self.soup("<foo attr='bar'>") + self.assertTrue(soup.foo.has_attr('attr')) + self.assertFalse(soup.foo.has_attr('attr2')) + + + def test_attributes_come_out_in_alphabetical_order(self): + markup = '<b a="1" z="5" m="3" f="2" y="4"></b>' + self.assertSoupEquals(markup, '<b a="1" f="2" m="3" y="4" z="5"></b>') + + def test_string(self): + # A tag that contains only a text node makes that node + # available as .string. + soup = self.soup("<b>foo</b>") + self.assertEqual(soup.b.string, 'foo') + + def test_empty_tag_has_no_string(self): + # A tag with no children has no .stirng. + soup = self.soup("<b></b>") + self.assertEqual(soup.b.string, None) + + def test_tag_with_multiple_children_has_no_string(self): + # A tag with no children has no .string. + soup = self.soup("<a>foo<b></b><b></b></b>") + self.assertEqual(soup.b.string, None) + + soup = self.soup("<a>foo<b></b>bar</b>") + self.assertEqual(soup.b.string, None) + + # Even if all the children are strings, due to trickery, + # it won't work--but this would be a good optimization. + soup = self.soup("<a>foo</b>") + soup.a.insert(1, "bar") + self.assertEqual(soup.a.string, None) + + def test_tag_with_recursive_string_has_string(self): + # A tag with a single child which has a .string inherits that + # .string. + soup = self.soup("<a><b>foo</b></a>") + self.assertEqual(soup.a.string, "foo") + self.assertEqual(soup.string, "foo") + + def test_lack_of_string(self): + """Only a tag containing a single text node has a .string.""" + soup = self.soup("<b>f<i>e</i>o</b>") + self.assertFalse(soup.b.string) + + soup = self.soup("<b></b>") + self.assertFalse(soup.b.string) + + def test_all_text(self): + """Tag.text and Tag.get_text(sep=u"") -> all child text, concatenated""" + soup = self.soup("<a>a<b>r</b> <r> t </r></a>") + self.assertEqual(soup.a.text, "ar t ") + self.assertEqual(soup.a.get_text(strip=True), "art") + self.assertEqual(soup.a.get_text(","), "a,r, , t ") + self.assertEqual(soup.a.get_text(",", strip=True), "a,r,t") + + def test_get_text_ignores_comments(self): + soup = self.soup("foo<!--IGNORE-->bar") + self.assertEqual(soup.get_text(), "foobar") + + self.assertEqual( + soup.get_text(types=(NavigableString, Comment)), "fooIGNOREbar") + self.assertEqual( + soup.get_text(types=None), "fooIGNOREbar") + + def test_all_strings_ignores_comments(self): + soup = self.soup("foo<!--IGNORE-->bar") + self.assertEqual(['foo', 'bar'], list(soup.strings)) + +class TestCDAtaListAttributes(SoupTest): + + """Testing cdata-list attributes like 'class'. + """ + def test_single_value_becomes_list(self): + soup = self.soup("<a class='foo'>") + self.assertEqual(["foo"],soup.a['class']) + + def test_multiple_values_becomes_list(self): + soup = self.soup("<a class='foo bar'>") + self.assertEqual(["foo", "bar"], soup.a['class']) + + def test_multiple_values_separated_by_weird_whitespace(self): + soup = self.soup("<a class='foo\tbar\nbaz'>") + self.assertEqual(["foo", "bar", "baz"],soup.a['class']) + + def test_attributes_joined_into_string_on_output(self): + soup = self.soup("<a class='foo\tbar'>") + self.assertEqual(b'<a class="foo bar"></a>', soup.a.encode()) + + def test_accept_charset(self): + soup = self.soup('<form accept-charset="ISO-8859-1 UTF-8">') + self.assertEqual(['ISO-8859-1', 'UTF-8'], soup.form['accept-charset']) + + def test_cdata_attribute_applying_only_to_one_tag(self): + data = '<a accept-charset="ISO-8859-1 UTF-8"></a>' + soup = self.soup(data) + # We saw in another test that accept-charset is a cdata-list + # attribute for the <form> tag. But it's not a cdata-list + # attribute for any other tag. + self.assertEqual('ISO-8859-1 UTF-8', soup.a['accept-charset']) + + def test_string_has_immutable_name_property(self): + string = self.soup("s").string + self.assertEqual(None, string.name) + def t(): + string.name = 'foo' + self.assertRaises(AttributeError, t) + +class TestPersistence(SoupTest): + "Testing features like pickle and deepcopy." + + def setUp(self): + super(TestPersistence, self).setUp() + self.page = """<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" +"http://www.w3.org/TR/REC-html40/transitional.dtd"> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<title>Beautiful Soup: We called him Tortoise because he taught us.</title> +<link rev="made" href="mailto:leonardr@segfault.org"> +<meta name="Description" content="Beautiful Soup: an HTML parser optimized for screen-scraping."> +<meta name="generator" content="Markov Approximation 1.4 (module: leonardr)"> +<meta name="author" content="Leonard Richardson"> +</head> +<body> +<a href="foo">foo</a> +<a href="foo"><b>bar</b></a> +</body> +</html>""" + self.tree = self.soup(self.page) + + def test_pickle_and_unpickle_identity(self): + # Pickling a tree, then unpickling it, yields a tree identical + # to the original. + dumped = pickle.dumps(self.tree, 2) + loaded = pickle.loads(dumped) + self.assertEqual(loaded.__class__, BeautifulSoup) + self.assertEqual(loaded.decode(), self.tree.decode()) + + def test_deepcopy_identity(self): + # Making a deepcopy of a tree yields an identical tree. + copied = copy.deepcopy(self.tree) + self.assertEqual(copied.decode(), self.tree.decode()) + + def test_unicode_pickle(self): + # A tree containing Unicode characters can be pickled. + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + dumped = pickle.dumps(soup, pickle.HIGHEST_PROTOCOL) + loaded = pickle.loads(dumped) + self.assertEqual(loaded.decode(), soup.decode()) + + +class TestSubstitutions(SoupTest): + + def test_default_formatter_is_minimal(self): + markup = u"<b><<Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></b>" + soup = self.soup(markup) + decoded = soup.decode(formatter="minimal") + # The < is converted back into < but the e-with-acute is left alone. + self.assertEqual( + decoded, + self.document_for( + u"<b><<Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></b>")) + + def test_formatter_html(self): + markup = u"<b><<Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></b>" + soup = self.soup(markup) + decoded = soup.decode(formatter="html") + self.assertEqual( + decoded, + self.document_for("<b><<Sacré bleu!>></b>")) + + def test_formatter_minimal(self): + markup = u"<b><<Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></b>" + soup = self.soup(markup) + decoded = soup.decode(formatter="minimal") + # The < is converted back into < but the e-with-acute is left alone. + self.assertEqual( + decoded, + self.document_for( + u"<b><<Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></b>")) + + def test_formatter_null(self): + markup = u"<b><<Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></b>" + soup = self.soup(markup) + decoded = soup.decode(formatter=None) + # Neither the angle brackets nor the e-with-acute are converted. + # This is not valid HTML, but it's what the user wanted. + self.assertEqual(decoded, + self.document_for(u"<b><<Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!>></b>")) + + def test_formatter_custom(self): + markup = u"<b><foo></b><b>bar</b>" + soup = self.soup(markup) + decoded = soup.decode(formatter = lambda x: x.upper()) + # Instead of normal entity conversion code, the custom + # callable is called on every string. + self.assertEqual( + decoded, + self.document_for(u"<b><FOO></b><b>BAR</b>")) + + def test_formatter_is_run_on_attribute_values(self): + markup = u'<a href="http://a.com?a=b&c=é">e</a>' + soup = self.soup(markup) + a = soup.a + + expect_minimal = u'<a href="http://a.com?a=b&c=é">e</a>' + + self.assertEqual(expect_minimal, a.decode()) + self.assertEqual(expect_minimal, a.decode(formatter="minimal")) + + expect_html = u'<a href="http://a.com?a=b&c=é">e</a>' + self.assertEqual(expect_html, a.decode(formatter="html")) + + self.assertEqual(markup, a.decode(formatter=None)) + expect_upper = u'<a href="HTTP://A.COM?A=B&C=É">E</a>' + self.assertEqual(expect_upper, a.decode(formatter=lambda x: x.upper())) + + def test_formatter_skips_script_tag_for_html_documents(self): + doc = """ + <script type="text/javascript"> + console.log("< < hey > > "); + </script> +""" + encoded = BeautifulSoup(doc).encode() + self.assertTrue(b"< < hey > >" in encoded) + + def test_formatter_skips_style_tag_for_html_documents(self): + doc = """ + <style type="text/css"> + console.log("< < hey > > "); + </style> +""" + encoded = BeautifulSoup(doc).encode() + self.assertTrue(b"< < hey > >" in encoded) + + def test_prettify_leaves_preformatted_text_alone(self): + soup = self.soup("<div> foo <pre> \tbar\n \n </pre> baz ") + # Everything outside the <pre> tag is reformatted, but everything + # inside is left alone. + self.assertEqual( + u'<div>\n foo\n <pre> \tbar\n \n </pre>\n baz\n</div>', + soup.div.prettify()) + + def test_prettify_accepts_formatter(self): + soup = BeautifulSoup("<html><body>foo</body></html>") + pretty = soup.prettify(formatter = lambda x: x.upper()) + self.assertTrue("FOO" in pretty) + + def test_prettify_outputs_unicode_by_default(self): + soup = self.soup("<a></a>") + self.assertEqual(unicode, type(soup.prettify())) + + def test_prettify_can_encode_data(self): + soup = self.soup("<a></a>") + self.assertEqual(bytes, type(soup.prettify("utf-8"))) + + def test_html_entity_substitution_off_by_default(self): + markup = u"<b>Sacr\N{LATIN SMALL LETTER E WITH ACUTE} bleu!</b>" + soup = self.soup(markup) + encoded = soup.b.encode("utf-8") + self.assertEqual(encoded, markup.encode('utf-8')) + + def test_encoding_substitution(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"/>') + soup = self.soup(meta_tag) + + # Parse the document, and the charset apprears unchanged. + self.assertEqual(soup.meta['content'], 'text/html; charset=x-sjis') + + # Encode the document into some encoding, and the encoding is + # substituted into the meta tag. + utf_8 = soup.encode("utf-8") + self.assertTrue(b"charset=utf-8" in utf_8) + + euc_jp = soup.encode("euc_jp") + self.assertTrue(b"charset=euc_jp" in euc_jp) + + shift_jis = soup.encode("shift-jis") + self.assertTrue(b"charset=shift-jis" in shift_jis) + + utf_16_u = soup.encode("utf-16").decode("utf-16") + self.assertTrue("charset=utf-16" in utf_16_u) + + def test_encoding_substitution_doesnt_happen_if_tag_is_strained(self): + markup = ('<head><meta content="text/html; charset=x-sjis" ' + 'http-equiv="Content-type"/></head><pre>foo</pre>') + + # Beautiful Soup used to try to rewrite the meta tag even if the + # meta tag got filtered out by the strainer. This test makes + # sure that doesn't happen. + strainer = SoupStrainer('pre') + soup = self.soup(markup, parse_only=strainer) + self.assertEqual(soup.contents[0].name, 'pre') + +class TestEncoding(SoupTest): + """Test the ability to encode objects into strings.""" + + def test_unicode_string_can_be_encoded(self): + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + self.assertEqual(soup.b.string.encode("utf-8"), + u"\N{SNOWMAN}".encode("utf-8")) + + def test_tag_containing_unicode_string_can_be_encoded(self): + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + self.assertEqual( + soup.b.encode("utf-8"), html.encode("utf-8")) + + def test_encoding_substitutes_unrecognized_characters_by_default(self): + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + self.assertEqual(soup.b.encode("ascii"), b"<b>☃</b>") + + def test_encoding_can_be_made_strict(self): + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + self.assertRaises( + UnicodeEncodeError, soup.encode, "ascii", errors="strict") + + def test_decode_contents(self): + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + self.assertEqual(u"\N{SNOWMAN}", soup.b.decode_contents()) + + def test_encode_contents(self): + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + self.assertEqual( + u"\N{SNOWMAN}".encode("utf8"), soup.b.encode_contents( + encoding="utf8")) + + def test_deprecated_renderContents(self): + html = u"<b>\N{SNOWMAN}</b>" + soup = self.soup(html) + self.assertEqual( + u"\N{SNOWMAN}".encode("utf8"), soup.b.renderContents()) + +class TestNavigableStringSubclasses(SoupTest): + + def test_cdata(self): + # None of the current builders turn CDATA sections into CData + # objects, but you can create them manually. + soup = self.soup("") + cdata = CData("foo") + soup.insert(1, cdata) + self.assertEqual(str(soup), "<![CDATA[foo]]>") + self.assertEqual(soup.find(text="foo"), "foo") + self.assertEqual(soup.contents[0], "foo") + + def test_cdata_is_never_formatted(self): + """Text inside a CData object is passed into the formatter. + + But the return value is ignored. + """ + + self.count = 0 + def increment(*args): + self.count += 1 + return "BITTER FAILURE" + + soup = self.soup("") + cdata = CData("<><><>") + soup.insert(1, cdata) + self.assertEqual( + b"<![CDATA[<><><>]]>", soup.encode(formatter=increment)) + self.assertEqual(1, self.count) + + def test_doctype_ends_in_newline(self): + # Unlike other NavigableString subclasses, a DOCTYPE always ends + # in a newline. + doctype = Doctype("foo") + soup = self.soup("") + soup.insert(1, doctype) + self.assertEqual(soup.encode(), b"<!DOCTYPE foo>\n") + + +class TestSoupSelector(TreeTest): + + HTML = """ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" +"http://www.w3.org/TR/html4/strict.dtd"> +<html> +<head> +<title>The title</title> +<link rel="stylesheet" href="blah.css" type="text/css" id="l1"> +</head> +<body> + +<div id="main" class="fancy"> +<div id="inner"> +<h1 id="header1">An H1</h1> +<p>Some text</p> +<p class="onep" id="p1">Some more text</p> +<h2 id="header2">An H2</h2> +<p class="class1 class2 class3" id="pmulti">Another</p> +<a href="http://bob.example.org/" rel="friend met" id="bob">Bob</a> +<h2 id="header3">Another H2</h2> +<a id="me" href="http://simonwillison.net/" rel="me">me</a> +<span class="s1"> +<a href="#" id="s1a1">span1a1</a> +<a href="#" id="s1a2">span1a2 <span id="s1a2s1">test</span></a> +<span class="span2"> +<a href="#" id="s2a1">span2a1</a> +</span> +<span class="span3"></span> +</span> +</div> +<p lang="en" id="lang-en">English</p> +<p lang="en-gb" id="lang-en-gb">English UK</p> +<p lang="en-us" id="lang-en-us">English US</p> +<p lang="fr" id="lang-fr">French</p> +</div> + +<div id="footer"> +</div> +""" + + def setUp(self): + self.soup = BeautifulSoup(self.HTML) + + def assertSelects(self, selector, expected_ids): + el_ids = [el['id'] for el in self.soup.select(selector)] + el_ids.sort() + expected_ids.sort() + self.assertEqual(expected_ids, el_ids, + "Selector %s, expected [%s], got [%s]" % ( + selector, ', '.join(expected_ids), ', '.join(el_ids) + ) + ) + + assertSelect = assertSelects + + def assertSelectMultiple(self, *tests): + for selector, expected_ids in tests: + self.assertSelect(selector, expected_ids) + + def test_one_tag_one(self): + els = self.soup.select('title') + self.assertEqual(len(els), 1) + self.assertEqual(els[0].name, 'title') + self.assertEqual(els[0].contents, [u'The title']) + + def test_one_tag_many(self): + els = self.soup.select('div') + self.assertEqual(len(els), 3) + for div in els: + self.assertEqual(div.name, 'div') + + def test_tag_in_tag_one(self): + els = self.soup.select('div div') + self.assertSelects('div div', ['inner']) + + def test_tag_in_tag_many(self): + for selector in ('html div', 'html body div', 'body div'): + self.assertSelects(selector, ['main', 'inner', 'footer']) + + def test_tag_no_match(self): + self.assertEqual(len(self.soup.select('del')), 0) + + def test_invalid_tag(self): + self.assertRaises(ValueError, self.soup.select, 'tag%t') + + def test_header_tags(self): + self.assertSelectMultiple( + ('h1', ['header1']), + ('h2', ['header2', 'header3']), + ) + + def test_class_one(self): + for selector in ('.onep', 'p.onep', 'html p.onep'): + els = self.soup.select(selector) + self.assertEqual(len(els), 1) + self.assertEqual(els[0].name, 'p') + self.assertEqual(els[0]['class'], ['onep']) + + def test_class_mismatched_tag(self): + els = self.soup.select('div.onep') + self.assertEqual(len(els), 0) + + def test_one_id(self): + for selector in ('div#inner', '#inner', 'div div#inner'): + self.assertSelects(selector, ['inner']) + + def test_bad_id(self): + els = self.soup.select('#doesnotexist') + self.assertEqual(len(els), 0) + + def test_items_in_id(self): + els = self.soup.select('div#inner p') + self.assertEqual(len(els), 3) + for el in els: + self.assertEqual(el.name, 'p') + self.assertEqual(els[1]['class'], ['onep']) + self.assertFalse(els[0].has_attr('class')) + + def test_a_bunch_of_emptys(self): + for selector in ('div#main del', 'div#main div.oops', 'div div#main'): + self.assertEqual(len(self.soup.select(selector)), 0) + + def test_multi_class_support(self): + for selector in ('.class1', 'p.class1', '.class2', 'p.class2', + '.class3', 'p.class3', 'html p.class2', 'div#inner .class2'): + self.assertSelects(selector, ['pmulti']) + + def test_multi_class_selection(self): + for selector in ('.class1.class3', '.class3.class2', + '.class1.class2.class3'): + self.assertSelects(selector, ['pmulti']) + + def test_child_selector(self): + self.assertSelects('.s1 > a', ['s1a1', 's1a2']) + self.assertSelects('.s1 > a span', ['s1a2s1']) + + def test_child_selector_id(self): + self.assertSelects('.s1 > a#s1a2 span', ['s1a2s1']) + + def test_attribute_equals(self): + self.assertSelectMultiple( + ('p[class="onep"]', ['p1']), + ('p[id="p1"]', ['p1']), + ('[class="onep"]', ['p1']), + ('[id="p1"]', ['p1']), + ('link[rel="stylesheet"]', ['l1']), + ('link[type="text/css"]', ['l1']), + ('link[href="blah.css"]', ['l1']), + ('link[href="no-blah.css"]', []), + ('[rel="stylesheet"]', ['l1']), + ('[type="text/css"]', ['l1']), + ('[href="blah.css"]', ['l1']), + ('[href="no-blah.css"]', []), + ('p[href="no-blah.css"]', []), + ('[href="no-blah.css"]', []), + ) + + def test_attribute_tilde(self): + self.assertSelectMultiple( + ('p[class~="class1"]', ['pmulti']), + ('p[class~="class2"]', ['pmulti']), + ('p[class~="class3"]', ['pmulti']), + ('[class~="class1"]', ['pmulti']), + ('[class~="class2"]', ['pmulti']), + ('[class~="class3"]', ['pmulti']), + ('a[rel~="friend"]', ['bob']), + ('a[rel~="met"]', ['bob']), + ('[rel~="friend"]', ['bob']), + ('[rel~="met"]', ['bob']), + ) + + def test_attribute_startswith(self): + self.assertSelectMultiple( + ('[rel^="style"]', ['l1']), + ('link[rel^="style"]', ['l1']), + ('notlink[rel^="notstyle"]', []), + ('[rel^="notstyle"]', []), + ('link[rel^="notstyle"]', []), + ('link[href^="bla"]', ['l1']), + ('a[href^="http://"]', ['bob', 'me']), + ('[href^="http://"]', ['bob', 'me']), + ('[id^="p"]', ['pmulti', 'p1']), + ('[id^="m"]', ['me', 'main']), + ('div[id^="m"]', ['main']), + ('a[id^="m"]', ['me']), + ) + + def test_attribute_endswith(self): + self.assertSelectMultiple( + ('[href$=".css"]', ['l1']), + ('link[href$=".css"]', ['l1']), + ('link[id$="1"]', ['l1']), + ('[id$="1"]', ['l1', 'p1', 'header1', 's1a1', 's2a1', 's1a2s1']), + ('div[id$="1"]', []), + ('[id$="noending"]', []), + ) + + def test_attribute_contains(self): + self.assertSelectMultiple( + # From test_attribute_startswith + ('[rel*="style"]', ['l1']), + ('link[rel*="style"]', ['l1']), + ('notlink[rel*="notstyle"]', []), + ('[rel*="notstyle"]', []), + ('link[rel*="notstyle"]', []), + ('link[href*="bla"]', ['l1']), + ('a[href*="http://"]', ['bob', 'me']), + ('[href*="http://"]', ['bob', 'me']), + ('[id*="p"]', ['pmulti', 'p1']), + ('div[id*="m"]', ['main']), + ('a[id*="m"]', ['me']), + # From test_attribute_endswith + ('[href*=".css"]', ['l1']), + ('link[href*=".css"]', ['l1']), + ('link[id*="1"]', ['l1']), + ('[id*="1"]', ['l1', 'p1', 'header1', 's1a1', 's1a2', 's2a1', 's1a2s1']), + ('div[id*="1"]', []), + ('[id*="noending"]', []), + # New for this test + ('[href*="."]', ['bob', 'me', 'l1']), + ('a[href*="."]', ['bob', 'me']), + ('link[href*="."]', ['l1']), + ('div[id*="n"]', ['main', 'inner']), + ('div[id*="nn"]', ['inner']), + ) + + def test_attribute_exact_or_hypen(self): + self.assertSelectMultiple( + ('p[lang|="en"]', ['lang-en', 'lang-en-gb', 'lang-en-us']), + ('[lang|="en"]', ['lang-en', 'lang-en-gb', 'lang-en-us']), + ('p[lang|="fr"]', ['lang-fr']), + ('p[lang|="gb"]', []), + ) + + def test_attribute_exists(self): + self.assertSelectMultiple( + ('[rel]', ['l1', 'bob', 'me']), + ('link[rel]', ['l1']), + ('a[rel]', ['bob', 'me']), + ('[lang]', ['lang-en', 'lang-en-gb', 'lang-en-us', 'lang-fr']), + ('p[class]', ['p1', 'pmulti']), + ('[blah]', []), + ('p[blah]', []), + ) + + def test_nth_of_type(self): + # Try to select first paragraph + els = self.soup.select('div#inner p:nth-of-type(1)') + self.assertEqual(len(els), 1) + self.assertEqual(els[0].string, u'Some text') + + # Try to select third paragraph + els = self.soup.select('div#inner p:nth-of-type(3)') + self.assertEqual(len(els), 1) + self.assertEqual(els[0].string, u'Another') + + # Try to select (non-existent!) fourth paragraph + els = self.soup.select('div#inner p:nth-of-type(4)') + self.assertEqual(len(els), 0) + + # Pass in an invalid value. + self.assertRaises( + ValueError, self.soup.select, 'div p:nth-of-type(0)') + + def test_nth_of_type_direct_descendant(self): + els = self.soup.select('div#inner > p:nth-of-type(1)') + self.assertEqual(len(els), 1) + self.assertEqual(els[0].string, u'Some text') + + def test_id_child_selector_nth_of_type(self): + self.assertSelects('#inner > p:nth-of-type(2)', ['p1']) + + def test_select_on_element(self): + # Other tests operate on the tree; this operates on an element + # within the tree. + inner = self.soup.find("div", id="main") + selected = inner.select("div") + # The <div id="inner"> tag was selected. The <div id="footer"> + # tag was not. + self.assertSelectsIDs(selected, ['inner']) + + def test_overspecified_child_id(self): + self.assertSelects(".fancy #inner", ['inner']) + self.assertSelects(".normal #inner", []) + + def test_adjacent_sibling_selector(self): + self.assertSelects('#p1 + h2', ['header2']) + self.assertSelects('#p1 + h2 + p', ['pmulti']) + self.assertSelects('#p1 + #header2 + .class1', ['pmulti']) + self.assertEqual([], self.soup.select('#p1 + p')) + + def test_general_sibling_selector(self): + self.assertSelects('#p1 ~ h2', ['header2', 'header3']) + self.assertSelects('#p1 ~ #header2', ['header2']) + self.assertSelects('#p1 ~ h2 + a', ['me']) + self.assertSelects('#p1 ~ h2 + [rel="me"]', ['me']) + self.assertEqual([], self.soup.select('#inner ~ h2')) + + def test_dangling_combinator(self): + self.assertRaises(ValueError, self.soup.select, 'h1 >') + + def test_sibling_combinator_wont_select_same_tag_twice(self): + self.assertSelects('p[lang] ~ p', ['lang-en-gb', 'lang-en-us', 'lang-fr']) |
