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import unittest
from BeautifulSoup import BeautifulSoup
from soupselect import select, monkeypatch, unmonkeypatch
class BaseTest(unittest.TestCase):
def setUp(self):
self.soup = BeautifulSoup(HTML)
def assertSelects(self, selector, expected_ids):
el_ids = [el['id'] for el in select(self.soup, 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)
class TestBasicSelectors(BaseTest):
def test_one_tag_one(self):
els = select(self.soup, '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 = select(self.soup, 'div')
self.assertEqual(len(els), 3)
for div in els:
self.assertEqual(div.name, 'div')
def test_tag_in_tag_one(self):
els = select(self.soup, '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(select(self.soup, 'del')), 0)
def test_invalid_tag(self):
self.assertEqual(len(select(self.soup, 'tag%t')), 0)
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 = select(self.soup, 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 = select(self.soup, '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 = select(self.soup, '#doesnotexist')
self.assertEqual(len(els), 0)
def test_items_in_id(self):
els = select(self.soup, 'div#inner p')
self.assertEqual(len(els), 3)
for el in els:
self.assertEqual(el.name, 'p')
self.assertEqual(els[1]['class'], 'onep')
self.assert_(not els[0].has_key('class'))
def test_a_bunch_of_emptys(self):
for selector in ('div#main del', 'div#main div.oops', 'div div#main'):
self.assertEqual(len(select(self.soup, 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'])
class TestAttributeSelectors(BaseTest):
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]', []),
)
class TestMonkeyPatch(BaseTest):
def assertSelectMultipleExplicit(self, soup, *tests):
for selector, expected_ids in tests:
el_ids = [el['id'] for el in soup.findSelect(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)
)
)
def test_monkeypatch_explicit(self):
soup = BeautifulSoup(HTML)
self.assertRaises(TypeError, soup.findSelect, '*')
monkeypatch(BeautifulSoup)
self.assert_(soup.findSelect('*'))
self.assertSelectMultipleExplicit(soup,
('link', ['l1']),
('div#main', ['main']),
('div div', ['inner']),
)
unmonkeypatch(BeautifulSoup)
self.assertRaises(TypeError, soup.findSelect, '*')
def test_monkeypatch_implicit(self):
soup = BeautifulSoup(HTML)
self.assertRaises(TypeError, soup.findSelect, '*')
monkeypatch()
self.assert_(soup.findSelect('*'))
self.assertSelectMultipleExplicit(soup,
('link', ['l1']),
('div#main', ['main']),
('div div', ['inner']),
)
unmonkeypatch()
self.assertRaises(TypeError, soup.findSelect, '*')
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">
<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>
</body>
</html>
"""
if __name__ == '__main__':
unittest.main()
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