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pyquery / pyquery / test.py

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#-*- coding:utf-8 -*-
#
# Copyright (C) 2008 - Olivier Lauzanne <olauzanne@gmail.com>
#
# Distributed under the BSD license, see LICENSE.txt
from webob import Request, Response, exc
from lxml import etree
import unittest
import doctest
import httplib
import socket
import os

import pyquery
from pyquery import PyQuery as pq
from ajax import PyQuery as pqa

socket.setdefaulttimeout(1)

try:
    conn = httplib.HTTPConnection("pyquery.org:80")
    conn.request("GET", "/")
    response = conn.getresponse()
except (socket.timeout, socket.error):
    GOT_NET=False
else:
    GOT_NET=True

def with_net(func):
    if GOT_NET:
        return func

dirname = os.path.dirname(os.path.abspath(pyquery.__file__))
docs = os.path.join(os.path.dirname(dirname), 'docs')
path_to_html_file = os.path.join(dirname, 'test.html')

def input_app(environ, start_response):
    resp = Response()
    req = Request(environ)
    if req.path_info == '/':
        resp.body = '<input name="youyou" type="text" value="" />'
    elif req.path_info == '/submit':
        resp.body = '<input type="submit" value="OK" />'
    else:
        resp.body = ''
    return resp(environ, start_response)

class TestReadme(doctest.DocFileCase):
    path = os.path.join(dirname, '..', 'README.txt')

    def __init__(self, *args, **kwargs):
        parser = doctest.DocTestParser()
        doc = open(self.path).read()
        test = parser.get_doctest(doc, globals(), '', self.path, 0)
        doctest.DocFileCase.__init__(self, test, optionflags=doctest.ELLIPSIS)

    def setUp(self):
        test = self._dt_test
        test.globs.update(globals())

for filename in os.listdir(docs):
    if filename.endswith('.txt'):
        if not GOT_NET and filename in ('ajax.txt', 'tips.txt'):
            continue
        klass_name = 'Test%s' % filename.replace('.txt', '').title()
        path = os.path.join(docs, filename)
        exec '%s = type("%s", (TestReadme,), dict(path=path))' % (klass_name, klass_name)

class TestTests(doctest.DocFileCase):
    path = os.path.join(dirname, 'tests.txt')

    def __init__(self, *args, **kwargs):
        parser = doctest.DocTestParser()
        doc = open(self.path).read()
        test = parser.get_doctest(doc, globals(), '', self.path, 0)
        doctest.DocFileCase.__init__(self, test, optionflags=doctest.ELLIPSIS)

class TestSelector(unittest.TestCase):
    klass = pq
    html = """
           <html>
            <body>
              <div>node1</div>
              <div id="node2">node2</div>
              <div class="node3">node3</div>
            </body>
           </html>
           """

    html2 = """
           <html>
            <body>
              <div>node1</div>
            </body>
           </html>
           """

    html3 = """
           <html>
            <body>
              <div>node1</div>
              <div id="node2">node2</div>
              <div class="node3">node3</div>
            </body>
           </html>
           """

    html4 = """
           <html>
            <body>
              <form action="/">
                <input name="enabled" type="text" value="test"/>
                <input name="disabled" type="text" value="disabled" disabled="disabled"/>
                <input name="file" type="file" />
                <select name="select">
                  <option value="">Choose something</option>
                  <option value="one">One</option>
                  <option value="two" selected="selected">Two</option>
                  <option value="three">Three</option>
                </select>
                <input name="radio" type="radio" value="one"/>
                <input name="radio" type="radio" value="two" checked="checked"/>
                <input name="radio" type="radio" value="three"/>
                <input name="checkbox" type="checkbox" value="a"/>
                <input name="checkbox" type="checkbox" value="b" checked="checked"/>
                <input name="checkbox" type="checkbox" value="c"/>
                <input name="button" type="button" value="button" />
                <button>button</button>
              </form>
            </body>
           </html>
           """

    html5 = """
           <html>
            <body>
              <h1>Heading 1</h1>
              <h2>Heading 2</h2>
              <h3>Heading 3</h3>
              <h4>Heading 4</h4>
              <h5>Heading 5</h5>
              <h6>Heading 6</h6>
            </body>
           </html>
           """

    def test_selector_from_doc(self):
        doc = etree.fromstring(self.html)
        assert len(self.klass(doc)) == 1
        assert len(self.klass('div', doc)) == 3
        assert len(self.klass('div#node2', doc)) == 1

    def test_selector_from_html(self):
        assert len(self.klass(self.html)) == 1
        assert len(self.klass('div', self.html)) == 3
        assert len(self.klass('div#node2', self.html)) == 1

    def test_selector_from_obj(self):
        e = self.klass(self.html)
        assert len(e('div')) == 3
        assert len(e('div#node2')) == 1

    def test_selector_from_html_from_obj(self):
        e = self.klass(self.html)
        assert len(e('div', self.html2)) == 1
        assert len(e('div#node2', self.html2)) == 0

    def test_class(self):
        e = self.klass(self.html)
        assert isinstance(e, self.klass)
        n = e('div', self.html2)
        assert isinstance(n, self.klass)
        assert n._parent is e

    def test_pseudo_classes(self):
        e = self.klass(self.html)
        self.assertEqual(e('div:first').text(), 'node1')
        self.assertEqual(e('div:last').text(), 'node3')
        self.assertEqual(e('div:even').text(), 'node1 node3')
        self.assertEqual(e('div div:even').text(), None)
        self.assertEqual(e('body div:even').text(), 'node1 node3')
        self.assertEqual(e('div:gt(0)').text(), 'node2 node3')
        self.assertEqual(e('div:lt(1)').text(), 'node1')
        self.assertEqual(e('div:eq(2)').text(), 'node3')

        #test on the form
        e = self.klass(self.html4)
        assert len(e(':disabled')) == 1
        assert len(e('input:enabled')) == 9
        assert len(e(':selected')) == 1
        assert len(e(':checked')) == 2
        assert len(e(':file')) == 1
        assert len(e(':input')) == 12
        assert len(e(':button')) == 2
        assert len(e(':radio')) == 3
        assert len(e(':checkbox')) == 3

        #test on other elements
        e = self.klass(self.html5)
        assert len(e(":header")) == 6
        assert len(e(":parent")) == 2
        assert len(e(":empty")) == 6
        assert len(e(":contains('Heading')")) == 6
        
    def test_on_the_fly_dom_creation(self):
        e = self.klass(self.html)
        assert e('<p>Hello world</p>').text() == 'Hello world'
        assert e('').text() == None

class TestTraversal(unittest.TestCase):
    klass = pq
    html = """
           <html>
            <body>
              <div id="node1"><span>node1</span></div>
              <div id="node2" class="node3"><span>node2</span><span> booyah</span></div>
            </body>
           </html>
           """

    def test_filter(self):
        assert len(self.klass('div', self.html).filter('.node3')) == 1
        assert len(self.klass('div', self.html).filter('#node2')) == 1
        assert len(self.klass('div', self.html).filter(lambda i: i == 0)) == 1
        
        d = pq('<p>Hello <b>warming</b> world</p>')
        self.assertEqual(d('strong').filter(lambda el: True), [])

    def test_not(self):
        assert len(self.klass('div', self.html).not_('.node3')) == 1

    def test_is(self):
        assert self.klass('div', self.html).is_('.node3')
        assert not self.klass('div', self.html).is_('.foobazbar')

    def test_find(self):
        assert len(self.klass('#node1', self.html).find('span')) == 1
        assert len(self.klass('#node2', self.html).find('span')) == 2
        assert len(self.klass('div', self.html).find('span')) == 3

    def test_each(self):
        doc = self.klass(self.html)
        doc('span').each(lambda: doc(this).wrap("<em></em>"))
        assert len(doc('em')) == 3

    def test_map(self):
        def ids_minus_one(i, elem):
            return int(self.klass(elem).attr('id')[-1]) - 1
        assert self.klass('div', self.html).map(ids_minus_one) == [0, 1]
        
        d = pq('<p>Hello <b>warming</b> world</p>')
        self.assertEqual(d('strong').map(lambda i,el: pq(this).text()), [])

    def test_end(self):
        assert len(self.klass('div', self.html).find('span').end()) == 2
        assert len(self.klass('#node2', self.html).find('span').end()) == 1

    def test_closest(self):
        assert len(self.klass('#node1 span', self.html).closest('body')) == 1
        assert self.klass('#node2', self.html).closest('.node3').attr('id') == 'node2'
        assert self.klass('.node3', self.html).closest('form') == []

class TestOpener(unittest.TestCase):

    def test_custom_opener(self):
        def opener(url):
            return '<html><body><div class="node"></div>'

        doc = pq(url='http://example.com', opener=opener)
        assert len(doc('.node')) == 1, doc

class TestCallback(unittest.TestCase):
    html = """
        <ol>
            <li>Coffee</li>
            <li>Tea</li>
            <li>Milk</li>
        </ol>
    """
    
    def test_S_this_inside_callback(self):
        S = pq(self.html)
        self.assertEqual(S('li').map(lambda i, el: S(this).html()), ['Coffee', 'Tea', 'Milk'])
        
    def test_parameterless_callback(self):
        S = pq(self.html)
        self.assertEqual(S('li').map(lambda: S(this).html()), ['Coffee', 'Tea', 'Milk'])
        
def application(environ, start_response):
    req = Request(environ)
    response = Response()
    if req.method == 'GET':
        response.body = '<pre>Yeah !</pre>'
    else:
        response.body = '<a href="/plop">Yeah !</a>'
    return response(environ, start_response)

def secure_application(environ, start_response):
    if 'REMOTE_USER' not in environ:
        return exc.HTTPUnauthorized('vomis')(environ, start_response)
    return application(environ, start_response)

class TestAjaxSelector(TestSelector):
    klass = pqa

    @with_net
    def test_proxy(self):
        e = self.klass([])
        val = e.get('http://pyquery.org/')
        assert len(val('body')) == 1, (str(val.response), val)

    def test_get(self):
        e = self.klass(app=application)
        val = e.get('/')
        assert len(val('pre')) == 1, val

    def test_secure_get(self):
        e = self.klass(app=secure_application)
        val = e.get('/', environ=dict(REMOTE_USER='gawii'))
        assert len(val('pre')) == 1, val
        val = e.get('/', REMOTE_USER='gawii')
        assert len(val('pre')) == 1, val

    def test_secure_get_not_authorized(self):
        e = self.klass(app=secure_application)
        val = e.get('/')
        assert len(val('pre')) == 0, val

    def test_post(self):
        e = self.klass(app=application)
        val = e.post('/')
        assert len(val('a')) == 1, val

    def test_subquery(self):
        e = self.klass(app=application)
        n = e('div')
        val = n.post('/')
        assert len(val('a')) == 1, val

class TestManipulating(unittest.TestCase):
    html = '''
    <div class="portlet">
      <a href="/toto">Test<img src ="myimage" />My link text</a>
      <a href="/toto2"><img src ="myimage2" />My link text 2</a>
    </div>
    '''

    def test_remove(self):
        d = pq(self.html)
        d('img').remove()
        val = d('a:first').html()
        assert val == 'Test My link text', repr(val)
        val = d('a:last').html()
        assert val == ' My link text 2', repr(val)

class TestHTMLParser(unittest.TestCase):
    xml = "<div>I'm valid XML</div>"
    html = '''
    <div class="portlet">
      <a href="/toto">TestimageMy link text</a>
      <a href="/toto2">imageMy link text 2</a>
      Behind you, a three-headed HTML&dash;Entity!
    </div>
    '''
    def test_parser_persistance(self):
        d = pq(self.xml, parser='xml')
        self.assertRaises(etree.XMLSyntaxError, lambda: d.after(self.html))
        d = pq(self.xml, parser='html')
        d.after(self.html) # this should not fail
        
        d = pq('<meta><head><title>Hello</head><body onload=crash()>Hi all<p>', parser='soup')
        self.assertEqual(str(d), '<html><meta/><head><title>Hello</title></head><body onload="crash()">Hi all<p/></body></html>')

    def test_replaceWith(self):
        expected = '''<div class="portlet">
      <a href="/toto">TestimageMy link text</a>
      <a href="/toto2">imageMy link text 2</a>
      Behind you, a three-headed HTML&amp;dash;Entity!
    </div>'''
        d = pq(self.html)
        d('img').replaceWith('image')
        val = d.__html__()
        assert val == expected, (repr(val), repr(expected))

    def test_replaceWith_with_function(self):
        expected = '''<div class="portlet">
      TestimageMy link text
      imageMy link text 2
      Behind you, a three-headed HTML&amp;dash;Entity!
    </div>'''
        d = pq(self.html)
        d('a').replaceWith(lambda i, e: pq(e).html())
        val = d.__html__()
        assert val == expected, (repr(val), repr(expected))

class TestWebScrapping(unittest.TestCase):
    @with_net
    def test_get(self):
        d = pq('http://www.theonion.com/search/', {'q': 'inconsistency'}, method='get')
        self.assertEqual(d('input [name=q]:last').val(), 'inconsistency')
        self.assertEqual(d('.news-in-brief h3').text(), 'Slight Inconsistency Found In Bible')
    
    @with_net
    def test_post(self):
        d = pq('http://www.theonion.com/search/', {'q': 'inconsistency'}, method='post')
        self.assertEqual(d('input [name=q]:last').val(), '') # the onion does not search on post

if __name__ == '__main__':
    fails, total = unittest.main()
    if fails == 0:
        print 'OK'