An H1

Some text

Some more text

An H2

Another

Bob

Another H2

me span1a1 span1a2 test span2a1

English

English UK

English US

French

""" def setup_method(self): self.soup = BeautifulSoup(self.HTML, 'html.parser') def assert_selects(self, selector, expected_ids, **kwargs): results = self.soup.select(selector, **kwargs) assert isinstance(results, ResultSet) el_ids = [el['id'] for el in results] el_ids.sort() expected_ids.sort() assert expected_ids == el_ids, "Selector %s, expected [%s], got [%s]" % ( selector, ', '.join(expected_ids), ', '.join(el_ids) ) assertSelect = assert_selects def assert_select_multiple(self, *tests): for selector, expected_ids in tests: self.assert_selects(selector, expected_ids) def test_precompiled(self): sel = self.soup.css.compile('div') els = self.soup.select(sel) assert len(els) == 4 for div in els: assert div.name == 'div' el = self.soup.select_one(sel) assert 'main' == el['id'] def test_one_tag_one(self): els = self.soup.select('title') assert len(els) == 1 assert els[0].name == 'title' assert els[0].contents == ['The title'] def test_one_tag_many(self): els = self.soup.select('div') assert len(els) == 4 for div in els: assert div.name == 'div' el = self.soup.select_one('div') assert 'main' == el['id'] def test_select_one_returns_none_if_no_match(self): match = self.soup.select_one('nonexistenttag') assert None == match def test_tag_in_tag_one(self): els = self.soup.select('div div') self.assert_selects('div div', ['inner', 'data1']) def test_tag_in_tag_many(self): for selector in ('html div', 'html body div', 'body div'): self.assert_selects(selector, ['data1', 'main', 'inner', 'footer']) def test_limit(self): self.assert_selects('html div', ['main'], limit=1) self.assert_selects('html body div', ['inner', 'main'], limit=2) self.assert_selects('body div', ['data1', 'main', 'inner', 'footer'], limit=10) def test_tag_no_match(self): assert len(self.soup.select('del')) == 0 def test_invalid_tag(self): with pytest.raises(SelectorSyntaxError): self.soup.select('tag%t') def test_select_dashed_tag_ids(self): self.assert_selects('custom-dashed-tag', ['dash1', 'dash2']) def test_select_dashed_by_id(self): dashed = self.soup.select('custom-dashed-tag[id=\"dash2\"]') assert dashed[0].name == 'custom-dashed-tag' assert dashed[0]['id'] == 'dash2' def test_dashed_tag_text(self): assert self.soup.select('body > custom-dashed-tag')[0].text == 'Hello there.' def test_select_dashed_matches_find_all(self): assert self.soup.select('custom-dashed-tag') == self.soup.find_all('custom-dashed-tag') def test_header_tags(self): self.assert_select_multiple( ('h1', ['header1']), ('h2', ['header2', 'header3']), ) def test_class_one(self): for selector in ('.onep', 'p.onep', 'html p.onep'): els = self.soup.select(selector) assert len(els) == 1 assert els[0].name == 'p' assert els[0]['class'] == ['onep'] def test_class_mismatched_tag(self): els = self.soup.select('div.onep') assert len(els) == 0 def test_one_id(self): for selector in ('div#inner', '#inner', 'div div#inner'): self.assert_selects(selector, ['inner']) def test_bad_id(self): els = self.soup.select('#doesnotexist') assert len(els) == 0 def test_items_in_id(self): els = self.soup.select('div#inner p') assert len(els) == 3 for el in els: assert el.name == 'p' assert els[1]['class'] == ['onep'] assert not 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'): assert 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.assert_selects(selector, ['pmulti']) def test_multi_class_selection(self): for selector in ('.class1.class3', '.class3.class2', '.class1.class2.class3'): self.assert_selects(selector, ['pmulti']) def test_child_selector(self): self.assert_selects('.s1 > a', ['s1a1', 's1a2']) self.assert_selects('.s1 > a span', ['s1a2s1']) def test_child_selector_id(self): self.assert_selects('.s1 > a#s1a2 span', ['s1a2s1']) def test_attribute_equals(self): self.assert_select_multiple( ('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.assert_select_multiple( ('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.assert_select_multiple( ('[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']), ('div[data-tag^="dashed"]', ['data1']) ) def test_attribute_endswith(self): self.assert_select_multiple( ('[href$=".css"]', ['l1']), ('link[href$=".css"]', ['l1']), ('link[id$="1"]', ['l1']), ('[id$="1"]', ['data1', 'l1', 'p1', 'header1', 's1a1', 's2a1', 's1a2s1', 'dash1']), ('div[id$="1"]', ['data1']), ('[id$="noending"]', []), ) def test_attribute_contains(self): self.assert_select_multiple( # From test_attribute_startswith ('[rel*="style"]', ['l1']), ('link[rel*="style"]', ['l1']), ('notlink[rel*="notstyle"]', []), ('[rel*="notstyle"]', []), ('link[rel*="notstyle"]', []), ('link[href*="bla"]', ['l1']), ('[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"]', ['data1', 'l1', 'p1', 'header1', 's1a1', 's1a2', 's2a1', 's1a2s1', 'dash1']), ('div[id*="1"]', ['data1']), ('[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']), ('div[data-tag*="edval"]', ['data1']) ) def test_attribute_exact_or_hypen(self): self.assert_select_multiple( ('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.assert_select_multiple( ('[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]', []), ('div[data-tag]', ['data1']) ) def test_quoted_space_in_selector_name(self): html = """

nope

yes

""" soup = BeautifulSoup(html, 'html.parser') [chosen] = soup.select('div[style="display: right"]') assert "yes" == chosen.string def test_unsupported_pseudoclass(self): with pytest.raises(NotImplementedError): self.soup.select("a:no-such-pseudoclass") with pytest.raises(SelectorSyntaxError): self.soup.select("a:nth-of-type(a)") def test_nth_of_type(self): # Try to select first paragraph els = self.soup.select('div#inner p:nth-of-type(1)') assert len(els) == 1 assert els[0].string == 'Some text' # Try to select third paragraph els = self.soup.select('div#inner p:nth-of-type(3)') assert len(els) == 1 assert els[0].string == 'Another' # Try to select (non-existent!) fourth paragraph els = self.soup.select('div#inner p:nth-of-type(4)') assert len(els) == 0 # Zero will select no tags. els = self.soup.select('div p:nth-of-type(0)') assert len(els) == 0 def test_nth_of_type_direct_descendant(self): els = self.soup.select('div#inner > p:nth-of-type(1)') assert len(els) == 1 assert els[0].string == 'Some text' def test_id_child_selector_nth_of_type(self): self.assert_selects('#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

tag was selected. The

# tag was not. self.assert_selects_ids(selected, ['inner', 'data1']) def test_overspecified_child_id(self): self.assert_selects(".fancy #inner", ['inner']) self.assert_selects(".normal #inner", []) def test_adjacent_sibling_selector(self): self.assert_selects('#p1 + h2', ['header2']) self.assert_selects('#p1 + h2 + p', ['pmulti']) self.assert_selects('#p1 + #header2 + .class1', ['pmulti']) assert [] == self.soup.select('#p1 + p') def test_general_sibling_selector(self): self.assert_selects('#p1 ~ h2', ['header2', 'header3']) self.assert_selects('#p1 ~ #header2', ['header2']) self.assert_selects('#p1 ~ h2 + a', ['me']) self.assert_selects('#p1 ~ h2 + [rel="me"]', ['me']) assert [] == self.soup.select('#inner ~ h2') def test_dangling_combinator(self): with pytest.raises(SelectorSyntaxError): self.soup.select('h1 >') def test_sibling_combinator_wont_select_same_tag_twice(self): self.assert_selects('p[lang] ~ p', ['lang-en-gb', 'lang-en-us', 'lang-fr']) # Test the selector grouping operator (the comma) def test_multiple_select(self): self.assert_selects('x, y', ['xid', 'yid']) def test_multiple_select_with_no_space(self): self.assert_selects('x,y', ['xid', 'yid']) def test_multiple_select_with_more_space(self): self.assert_selects('x, y', ['xid', 'yid']) def test_multiple_select_duplicated(self): self.assert_selects('x, x', ['xid']) def test_multiple_select_sibling(self): self.assert_selects('x, y ~ p[lang=fr]', ['xid', 'lang-fr']) def test_multiple_select_tag_and_direct_descendant(self): self.assert_selects('x, y > z', ['xid', 'zidb']) def test_multiple_select_direct_descendant_and_tags(self): self.assert_selects('div > x, y, z', ['xid', 'yid', 'zida', 'zidb', 'zidab', 'zidac']) def test_multiple_select_indirect_descendant(self): self.assert_selects('div x,y, z', ['xid', 'yid', 'zida', 'zidb', 'zidab', 'zidac']) def test_invalid_multiple_select(self): with pytest.raises(SelectorSyntaxError): self.soup.select(',x, y') with pytest.raises(SelectorSyntaxError): self.soup.select('x,,y') def test_multiple_select_attrs(self): self.assert_selects('p[lang=en], p[lang=en-gb]', ['lang-en', 'lang-en-gb']) def test_multiple_select_ids(self): self.assert_selects('x, y > z[id=zida], z[id=zidab], z[id=zidb]', ['xid', 'zidb', 'zidab']) def test_multiple_select_nested(self): self.assert_selects('body > div > x, y > z', ['xid', 'zidb']) def test_select_duplicate_elements(self): # When markup contains duplicate elements, a multiple select # will find all of them. markup = '

' soup = BeautifulSoup(markup, 'html.parser') selected = soup.select(".c1, .c2") assert 3 == len(selected) # Verify that find_all finds the same elements, though because # of an implementation detail it finds them in a different # order. for element in soup.find_all(class_=['c1', 'c2']): assert element in selected def test_closest(self): inner = self.soup.find("div", id="inner") closest = inner.css.closest("div[id=main]") assert closest == self.soup.find("div", id="main") def test_match(self): inner = self.soup.find("div", id="inner") main = self.soup.find("div", id="main") assert inner.css.match("div[id=main]") == False assert main.css.match("div[id=main]") == True def test_iselect(self): gen = self.soup.css.iselect("h2") assert isinstance(gen, types.GeneratorType) [header2, header3] = gen assert header2['id'] == 'header2' assert header3['id'] == 'header3' def test_filter(self): inner = self.soup.find("div", id="inner") results = inner.css.filter("h2") assert len(inner.css.filter("h2")) == 2 results = inner.css.filter("h2[id=header3]") assert isinstance(results, ResultSet) [result] = results assert result['id'] == 'header3' def test_escape(self): m = self.soup.css.escape assert m(".foo#bar") == '\\.foo\\#bar' assert m("()[]{}") == '\$\$\\[\\]\\{\\}' assert m(".foo") == self.soup.css.escape(".foo")