diff --git a/tests/py3-ignores.txt b/tests/py3-ignores.txt
index 8f5c0de48..5a009db36 100644
--- a/tests/py3-ignores.txt
+++ b/tests/py3-ignores.txt
@@ -25,8 +25,6 @@ tests/test_mail.py
 tests/test_pipeline_files.py
 tests/test_pipeline_images.py
 tests/test_proxy_connect.py
-tests/test_selector_csstranslator.py
-tests/test_selector.py
 tests/test_spidermiddleware_depth.py
 tests/test_spidermiddleware_httperror.py
 tests/test_spidermiddleware_offsite.py
diff --git a/tests/test_selector.py b/tests/test_selector.py
index dc37da86b..4806bb90b 100644
--- a/tests/test_selector.py
+++ b/tests/test_selector.py
@@ -12,18 +12,16 @@ from lxml import etree
 
 class SelectorTestCase(unittest.TestCase):
 
-    sscls = Selector
-
     def test_simple_selection(self):
         """Simple selector tests"""
-        body = "<p><input name='a'value='1'/><input name='b'value='2'/></p>"
-        response = TextResponse(url="http://example.com", body=body)
-        sel = self.sscls(response)
+        body = u"<p><input name='a'value='1'/><input name='b'value='2'/></p>"
+        response = TextResponse(url="http://example.com", body=body, encoding='utf-8')
+        sel = Selector(response)
 
         xl = sel.xpath('//input')
         self.assertEqual(2, len(xl))
         for x in xl:
-            assert isinstance(x, self.sscls)
+            assert isinstance(x, Selector)
 
         self.assertEqual(sel.xpath('//input').extract(),
                          [x.extract() for x in sel.xpath('//input')])
@@ -41,7 +39,7 @@ class SelectorTestCase(unittest.TestCase):
     def test_deprecated_root_argument(self):
         with warnings.catch_warnings(record=True) as w:
             root = etree.fromstring(u'<html/>')
-            sel = self.sscls(_root=root)
+            sel = Selector(_root=root)
             self.assertIs(root, sel.root)
             self.assertEqual(str(w[-1].message),
                              'Argument `_root` is deprecated, use `root` instead')
@@ -50,238 +48,22 @@ class SelectorTestCase(unittest.TestCase):
         with warnings.catch_warnings(record=True) as w:
             _root = etree.fromstring(u'<xml/>')
             root = etree.fromstring(u'<html/>')
-            sel = self.sscls(_root=_root, root=root)
+            sel = Selector(_root=_root, root=root)
             self.assertIs(root, sel.root)
             self.assertIn('Ignoring deprecated `_root` argument', str(w[-1].message))
 
-    def test_representation_slice(self):
-        body = u"<p><input name='{}' value='\xa9'/></p>".format(50 * 'b')
-        response = TextResponse(url="http://example.com", body=body, encoding='utf8')
-        sel = self.sscls(response)
-
-        self.assertEqual(
-            map(repr, sel.xpath('//input/@name')),
-            ["<Selector xpath='//input/@name' data=u'{}'>".format(40 * 'b')]
-        )
-
-    def test_representation_unicode_query(self):
-        body = u"<p><input name='{}' value='\xa9'/></p>".format(50 * 'b')
-        response = TextResponse(url="http://example.com", body=body, encoding='utf8')
-        sel = self.sscls(response)
-        self.assertEqual(
-            map(repr, sel.xpath(u'//input[@value="\xa9"]/@value')),
-            ["<Selector xpath=u'//input[@value=\"\\xa9\"]/@value' data=u'\\xa9'>"]
-        )
-
-    def test_extract_first(self):
-        """Test if extract_first() returns first element"""
-        body = '<ul><li id="1">1</li><li id="2">2</li></ul>'
-        response = TextResponse(url="http://example.com", body=body)
-        sel = self.sscls(response)
-
-        self.assertEqual(sel.xpath('//ul/li/text()').extract_first(),
-                         sel.xpath('//ul/li/text()').extract()[0])
-
-        self.assertEqual(sel.xpath('//ul/li[@id="1"]/text()').extract_first(),
-                         sel.xpath('//ul/li[@id="1"]/text()').extract()[0])
-
-        self.assertEqual(sel.xpath('//ul/li[2]/text()').extract_first(),
-                         sel.xpath('//ul/li/text()').extract()[1])
-
-        self.assertEqual(sel.xpath('/ul/li[@id="doesnt-exist"]/text()').extract_first(), None)
-
-    def test_extract_first_default(self):
-        """Test if extract_first() returns default value when no results found"""
-        body = '<ul><li id="1">1</li><li id="2">2</li></ul>'
-        response = TextResponse(url="http://example.com", body=body)
-        sel = self.sscls(response)
-
-        self.assertEqual(sel.xpath('//div/text()').extract_first(default='missing'), 'missing')
-
-    def test_re_first(self):
-        """Test if re_first() returns first matched element"""
-        body = '<ul><li id="1">1</li><li id="2">2</li></ul>'
-        response = TextResponse(url="http://example.com", body=body)
-        sel = self.sscls(response)
-
-        self.assertEqual(sel.xpath('//ul/li/text()').re_first('\d'),
-                         sel.xpath('//ul/li/text()').re('\d')[0])
-
-        self.assertEqual(sel.xpath('//ul/li[@id="1"]/text()').re_first('\d'),
-                         sel.xpath('//ul/li[@id="1"]/text()').re('\d')[0])
-
-        self.assertEqual(sel.xpath('//ul/li[2]/text()').re_first('\d'),
-                         sel.xpath('//ul/li/text()').re('\d')[1])
-
-        self.assertEqual(sel.xpath('/ul/li/text()').re_first('\w+'), None)
-        self.assertEqual(sel.xpath('/ul/li[@id="doesnt-exist"]/text()').re_first('\d'), None)
-
-    def test_select_unicode_query(self):
-        body = u"<p><input name='\xa9' value='1'/></p>"
-        response = TextResponse(url="http://example.com", body=body, encoding='utf8')
-        sel = self.sscls(response)
-        self.assertEqual(sel.xpath(u'//input[@name="\xa9"]/@value').extract(), [u'1'])
-
-    def test_list_elements_type(self):
-        """Test Selector returning the same type in selection methods"""
-        text = '<p>test<p>'
-        assert isinstance(self.sscls(text=text).xpath("//p")[0], self.sscls)
-        assert isinstance(self.sscls(text=text).css("p")[0], self.sscls)
-
-    def test_boolean_result(self):
-        body = "<p><input name='a'value='1'/><input name='b'value='2'/></p>"
-        response = TextResponse(url="http://example.com", body=body)
-        xs = self.sscls(response)
-        self.assertEquals(xs.xpath("//input[@name='a']/@name='a'").extract(), [u'1'])
-        self.assertEquals(xs.xpath("//input[@name='a']/@name='n'").extract(), [u'0'])
-
-    def test_differences_parsing_xml_vs_html(self):
-        """Test that XML and HTML Selector's behave differently"""
-        # some text which is parsed differently by XML and HTML flavors
-        text = '<div><img src="a.jpg"><p>Hello</div>'
-        hs = self.sscls(text=text, type='html')
-        self.assertEqual(hs.xpath("//div").extract(),
-                         [u'<div><img src="a.jpg"><p>Hello</p></div>'])
-
-        xs = self.sscls(text=text, type='xml')
-        self.assertEqual(xs.xpath("//div").extract(),
-                         [u'<div><img src="a.jpg"><p>Hello</p></img></div>'])
-
     def test_flavor_detection(self):
-        text = '<div><img src="a.jpg"><p>Hello</div>'
-        sel = self.sscls(XmlResponse('http://example.com', body=text))
+        text = u'<div><img src="a.jpg"><p>Hello</div>'
+        sel = Selector(XmlResponse('http://example.com', body=text, encoding='utf-8'))
         self.assertEqual(sel.type, 'xml')
         self.assertEqual(sel.xpath("//div").extract(),
                          [u'<div><img src="a.jpg"><p>Hello</p></img></div>'])
 
-        sel = self.sscls(HtmlResponse('http://example.com', body=text))
+        sel = Selector(HtmlResponse('http://example.com', body=text, encoding='utf-8'))
         self.assertEqual(sel.type, 'html')
         self.assertEqual(sel.xpath("//div").extract(),
                          [u'<div><img src="a.jpg"><p>Hello</p></div>'])
 
-    def test_nested_selectors(self):
-        """Nested selector tests"""
-        body = """<body>
-                    <div class='one'>
-                      <ul>
-                        <li>one</li><li>two</li>
-                      </ul>
-                    </div>
-                    <div class='two'>
-                      <ul>
-                        <li>four</li><li>five</li><li>six</li>
-                      </ul>
-                    </div>
-                  </body>"""
-
-        response = HtmlResponse(url="http://example.com", body=body)
-        x = self.sscls(response)
-        divtwo = x.xpath('//div[@class="two"]')
-        self.assertEqual(divtwo.xpath("//li").extract(),
-                         ["<li>one</li>", "<li>two</li>", "<li>four</li>", "<li>five</li>", "<li>six</li>"])
-        self.assertEqual(divtwo.xpath("./ul/li").extract(),
-                         ["<li>four</li>", "<li>five</li>", "<li>six</li>"])
-        self.assertEqual(divtwo.xpath(".//li").extract(),
-                         ["<li>four</li>", "<li>five</li>", "<li>six</li>"])
-        self.assertEqual(divtwo.xpath("./li").extract(), [])
-
-    def test_mixed_nested_selectors(self):
-        body = '''<body>
-                    <div id=1>not<span>me</span></div>
-                    <div class="dos"><p>text</p><a href='#'>foo</a></div>
-               </body>'''
-        sel = self.sscls(text=body)
-        self.assertEqual(sel.xpath('//div[@id="1"]').css('span::text').extract(), [u'me'])
-        self.assertEqual(sel.css('#1').xpath('./span/text()').extract(), [u'me'])
-
-    def test_dont_strip(self):
-        sel = self.sscls(text='<div>fff: <a href="#">zzz</a></div>')
-        self.assertEqual(sel.xpath("//text()").extract(), [u'fff: ', u'zzz'])
-
-    def test_namespaces_simple(self):
-        body = """
-        <test xmlns:somens="http://scrapy.org">
-           <somens:a id="foo">take this</a>
-           <a id="bar">found</a>
-        </test>
-        """
-
-        response = XmlResponse(url="http://example.com", body=body)
-        x = self.sscls(response)
-
-        x.register_namespace("somens", "http://scrapy.org")
-        self.assertEqual(x.xpath("//somens:a/text()").extract(),
-                         [u'take this'])
-
-    def test_namespaces_multiple(self):
-        body = """<?xml version="1.0" encoding="UTF-8"?>
-<BrowseNode xmlns="http://webservices.amazon.com/AWSECommerceService/2005-10-05"
-            xmlns:b="http://somens.com"
-            xmlns:p="http://www.scrapy.org/product" >
-    <b:Operation>hello</b:Operation>
-    <TestTag b:att="value"><Other>value</Other></TestTag>
-    <p:SecondTestTag><material>iron</material><price>90</price><p:name>Dried Rose</p:name></p:SecondTestTag>
-</BrowseNode>
-        """
-        response = XmlResponse(url="http://example.com", body=body)
-        x = self.sscls(response)
-        x.register_namespace("xmlns", "http://webservices.amazon.com/AWSECommerceService/2005-10-05")
-        x.register_namespace("p", "http://www.scrapy.org/product")
-        x.register_namespace("b", "http://somens.com")
-        self.assertEqual(len(x.xpath("//xmlns:TestTag")), 1)
-        self.assertEqual(x.xpath("//b:Operation/text()").extract()[0], 'hello')
-        self.assertEqual(x.xpath("//xmlns:TestTag/@b:att").extract()[0], 'value')
-        self.assertEqual(x.xpath("//p:SecondTestTag/xmlns:price/text()").extract()[0], '90')
-        self.assertEqual(x.xpath("//p:SecondTestTag").xpath("./xmlns:price/text()")[0].extract(), '90')
-        self.assertEqual(x.xpath("//p:SecondTestTag/xmlns:material/text()").extract()[0], 'iron')
-
-    def test_re(self):
-        body = """<div>Name: Mary
-                    <ul>
-                      <li>Name: John</li>
-                      <li>Age: 10</li>
-                      <li>Name: Paul</li>
-                      <li>Age: 20</li>
-                    </ul>
-                    Age: 20
-                  </div>"""
-        response = HtmlResponse(url="http://example.com", body=body)
-        x = self.sscls(response)
-
-        name_re = re.compile("Name: (\w+)")
-        self.assertEqual(x.xpath("//ul/li").re(name_re),
-                         ["John", "Paul"])
-        self.assertEqual(x.xpath("//ul/li").re("Age: (\d+)"),
-                         ["10", "20"])
-
-    def test_re_intl(self):
-        body = """<div>Evento: cumplea\xc3\xb1os</div>"""
-        response = HtmlResponse(url="http://example.com", body=body, encoding='utf-8')
-        x = self.sscls(response)
-        self.assertEqual(x.xpath("//div").re("Evento: (\w+)"), [u'cumplea\xf1os'])
-
-    def test_selector_over_text(self):
-        hs = self.sscls(text='<root>lala</root>')
-        self.assertEqual(hs.extract(), u'<html><body><root>lala</root></body></html>')
-        xs = self.sscls(text='<root>lala</root>', type='xml')
-        self.assertEqual(xs.extract(), u'<root>lala</root>')
-        self.assertEqual(xs.xpath('.').extract(), [u'<root>lala</root>'])
-
-    def test_invalid_xpath(self):
-        "Test invalid xpath raises ValueError with the invalid xpath"
-        response = XmlResponse(url="http://example.com", body="<html></html>")
-        x = self.sscls(response)
-        xpath = "//test[@foo='bar]"
-        self.assertRaisesRegexp(ValueError, re.escape(xpath), x.xpath, xpath)
-
-    def test_invalid_xpath_unicode(self):
-        "Test *Unicode* invalid xpath raises ValueError with the invalid xpath"
-        response = XmlResponse(url="http://example.com", body="<html></html>")
-        x = self.sscls(response)
-        xpath = u"//test[@foo='\u0431ar]"
-        encoded = xpath if six.PY3 else xpath.encode('unicode_escape')
-        self.assertRaisesRegexp(ValueError, re.escape(encoded), x.xpath, xpath)
-
     def test_http_header_encoding_precedence(self):
         # u'\xa3'     = pound symbol in unicode
         # u'\xc2\xa3' = pound symbol in utf-8
@@ -297,136 +79,28 @@ class SelectorTestCase(unittest.TestCase):
 
         headers = {'Content-Type': ['text/html; charset=utf-8']}
         response = HtmlResponse(url="http://example.com", headers=headers, body=html_utf8)
-        x = self.sscls(response)
+        x = Selector(response)
         self.assertEquals(x.xpath("//span[@id='blank']/text()").extract(),
                           [u'\xa3'])
 
-    def test_empty_bodies(self):
-        # shouldn't raise errors
-        r1 = TextResponse('http://www.example.com', body='')
-        self.sscls(r1).xpath('//text()').extract()
-
-    def test_null_bytes(self):
-        # shouldn't raise errors
-        r1 = TextResponse('http://www.example.com', \
-                          body='<root>pre\x00post</root>', \
-                          encoding='utf-8')
-        self.sscls(r1).xpath('//text()').extract()
-
     def test_badly_encoded_body(self):
         # \xe9 alone isn't valid utf8 sequence
         r1 = TextResponse('http://www.example.com', \
-                          body='<html><p>an Jos\xe9 de</p><html>', \
+                          body=u'<html><p>an Jos\xe9 de</p><html>', \
                           encoding='utf-8')
-        self.sscls(r1).xpath('//text()').extract()
-
-    def test_select_on_unevaluable_nodes(self):
-        r = self.sscls(text=u'<span class="big">some text</span>')
-        # Text node
-        x1 = r.xpath('//text()')
-        self.assertEquals(x1.extract(), [u'some text'])
-        self.assertEquals(x1.xpath('.//b').extract(), [])
-        # Tag attribute
-        x1 = r.xpath('//span/@class')
-        self.assertEquals(x1.extract(), [u'big'])
-        self.assertEquals(x1.xpath('.//text()').extract(), [])
-
-    def test_select_on_text_nodes(self):
-        r = self.sscls(text=u'<div><b>Options:</b>opt1</div><div><b>Other</b>opt2</div>')
-        x1 = r.xpath("//div/descendant::text()[preceding-sibling::b[contains(text(), 'Options')]]")
-        self.assertEquals(x1.extract(), [u'opt1'])
-
-        x1 = r.xpath("//div/descendant::text()/preceding-sibling::b[contains(text(), 'Options')]")
-        self.assertEquals(x1.extract(), [u'<b>Options:</b>'])
-
-    def test_nested_select_on_text_nodes(self):
-        # FIXME: does not work with lxml backend [upstream]
-        r = self.sscls(text=u'<div><b>Options:</b>opt1</div><div><b>Other</b>opt2</div>')
-        x1 = r.xpath("//div/descendant::text()")
-        x2 = x1.xpath("./preceding-sibling::b[contains(text(), 'Options')]")
-        self.assertEquals(x2.extract(), [u'<b>Options:</b>'])
-    test_nested_select_on_text_nodes.skip = "Text nodes lost parent node reference in lxml"
+        Selector(r1).xpath('//text()').extract()
 
     def test_weakref_slots(self):
         """Check that classes are using slots and are weak-referenceable"""
-        x = self.sscls(text='')
+        x = Selector(text='')
         weakref.ref(x)
         assert not hasattr(x, '__dict__'), "%s does not use __slots__" % \
             x.__class__.__name__
 
-    def test_remove_namespaces(self):
-        xml = """<?xml version="1.0" encoding="UTF-8"?>
-<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en-US" xmlns:media="http://search.yahoo.com/mrss/">
-  <link type="text/html">
-  <link type="application/atom+xml">
-</feed>
-"""
-        sel = self.sscls(XmlResponse("http://example.com/feed.atom", body=xml))
-        self.assertEqual(len(sel.xpath("//link")), 0)
-        sel.remove_namespaces()
-        self.assertEqual(len(sel.xpath("//link")), 2)
-
-    def test_remove_attributes_namespaces(self):
-        xml = """<?xml version="1.0" encoding="UTF-8"?>
-<feed xmlns:atom="http://www.w3.org/2005/Atom" xml:lang="en-US" xmlns:media="http://search.yahoo.com/mrss/">
-  <link atom:type="text/html">
-  <link atom:type="application/atom+xml">
-</feed>
-"""
-        sel = self.sscls(XmlResponse("http://example.com/feed.atom", body=xml))
-        self.assertEqual(len(sel.xpath("//link/@type")), 0)
-        sel.remove_namespaces()
-        self.assertEqual(len(sel.xpath("//link/@type")), 2)
-
-    def test_smart_strings(self):
-        """Lxml smart strings return values"""
-
-        class SmartStringsSelector(Selector):
-            _lxml_smart_strings = True
-
-        body = """<body>
-                    <div class='one'>
-                      <ul>
-                        <li>one</li><li>two</li>
-                      </ul>
-                    </div>
-                    <div class='two'>
-                      <ul>
-                        <li>four</li><li>five</li><li>six</li>
-                      </ul>
-                    </div>
-                  </body>"""
-
-        response = HtmlResponse(url="http://example.com", body=body)
-
-        # .getparent() is available for text nodes and attributes
-        # only when smart_strings are on
-        x = self.sscls(response)
-        li_text = x.xpath('//li/text()')
-        self.assertFalse(any(map(lambda e: hasattr(e._root, 'getparent'), li_text)))
-        div_class = x.xpath('//div/@class')
-        self.assertFalse(any(map(lambda e: hasattr(e._root, 'getparent'), div_class)))
-
-        x = SmartStringsSelector(response)
-        li_text = x.xpath('//li/text()')
-        self.assertTrue(all(map(lambda e: hasattr(e._root, 'getparent'), li_text)))
-        div_class = x.xpath('//div/@class')
-        self.assertTrue(all(map(lambda e: hasattr(e._root, 'getparent'), div_class)))
-
-    def test_xml_entity_expansion(self):
-        malicious_xml = '<?xml version="1.0" encoding="ISO-8859-1"?>'\
-            '<!DOCTYPE foo [ <!ELEMENT foo ANY > <!ENTITY xxe SYSTEM '\
-            '"file:///etc/passwd" >]><foo>&xxe;</foo>'
-
-        response = XmlResponse('http://example.com', body=malicious_xml)
-        sel = self.sscls(response=response)
-
-        self.assertEqual(sel.extract(), '<foo>&xxe;</foo>')
-
 
 class DeprecatedXpathSelectorTest(unittest.TestCase):
 
-    text = '<div><img src="a.jpg"><p>Hello</div>'
+    text = u'<div><img src="a.jpg"><p>Hello</div>'
 
     def test_warnings_xpathselector(self):
         cls = XPathSelector
@@ -504,147 +178,4 @@ class DeprecatedXpathSelectorTest(unittest.TestCase):
             self.assertTrue(isinstance(sel, Selector))
             self.assertTrue(isinstance(usel, Selector))
             self.assertTrue(isinstance(sel, XPathSelector))
-            self.assertTrue(isinstance(usel, XPathSelector))
-
-    def test_xpathselector(self):
-        with warnings.catch_warnings():
-            warnings.simplefilter('ignore', ScrapyDeprecationWarning)
-            hs = XPathSelector(text=self.text)
-            self.assertEqual(hs.select("//div").extract(),
-                             [u'<div><img src="a.jpg"><p>Hello</p></div>'])
-            self.assertRaises(RuntimeError, hs.css, 'div')
-
-    def test_htmlxpathselector(self):
-        with warnings.catch_warnings():
-            warnings.simplefilter('ignore', ScrapyDeprecationWarning)
-            hs = HtmlXPathSelector(text=self.text)
-            self.assertEqual(hs.select("//div").extract(),
-                             [u'<div><img src="a.jpg"><p>Hello</p></div>'])
-            self.assertRaises(RuntimeError, hs.css, 'div')
-
-    def test_xmlxpathselector(self):
-        with warnings.catch_warnings():
-            warnings.simplefilter('ignore', ScrapyDeprecationWarning)
-            xs = XmlXPathSelector(text=self.text)
-            self.assertEqual(xs.select("//div").extract(),
-                             [u'<div><img src="a.jpg"><p>Hello</p></img></div>'])
-            self.assertRaises(RuntimeError, xs.css, 'div')
-
-
-class ExsltTestCase(unittest.TestCase):
-
-    sscls = Selector
-
-    def test_regexp(self):
-        """EXSLT regular expression tests"""
-        body = """
-        <p><input name='a' value='1'/><input name='b' value='2'/></p>
-        <div class="links">
-        <a href="/first.html">first link</a>
-        <a href="/second.html">second link</a>
-        <a href="http://www.bayes.co.uk/xml/index.xml?/xml/utils/rechecker.xml">EXSLT match example</a>
-        </div>
-        """
-        response = TextResponse(url="http://example.com", body=body)
-        sel = self.sscls(response)
-
-        # re:test()
-        self.assertEqual(
-            sel.xpath(
-                '//input[re:test(@name, "[A-Z]+", "i")]').extract(),
-            [x.extract() for x in sel.xpath('//input[re:test(@name, "[A-Z]+", "i")]')])
-        self.assertEqual(
-            [x.extract()
-             for x in sel.xpath(
-                 '//a[re:test(@href, "\.html$")]/text()')],
-            [u'first link', u'second link'])
-        self.assertEqual(
-            [x.extract()
-             for x in sel.xpath(
-                 '//a[re:test(@href, "first")]/text()')],
-            [u'first link'])
-        self.assertEqual(
-            [x.extract()
-             for x in sel.xpath(
-                 '//a[re:test(@href, "second")]/text()')],
-            [u'second link'])
-
-
-        # re:match() is rather special: it returns a node-set of <match> nodes
-        #[u'<match>http://www.bayes.co.uk/xml/index.xml?/xml/utils/rechecker.xml</match>',
-        #u'<match>http</match>',
-        #u'<match>www.bayes.co.uk</match>',
-        #u'<match></match>',
-        #u'<match>/xml/index.xml?/xml/utils/rechecker.xml</match>']
-        self.assertEqual(
-            sel.xpath('re:match(//a[re:test(@href, "\.xml$")]/@href,'
-                      '"(\w+):\/\/([^/:]+)(:\d*)?([^# ]*)")/text()').extract(),
-            [u'http://www.bayes.co.uk/xml/index.xml?/xml/utils/rechecker.xml',
-             u'http',
-             u'www.bayes.co.uk',
-             u'',
-             u'/xml/index.xml?/xml/utils/rechecker.xml'])
-
-
-
-        # re:replace()
-        self.assertEqual(
-            sel.xpath('re:replace(//a[re:test(@href, "\.xml$")]/@href,'
-                      '"(\w+)://(.+)(\.xml)", "","https://\\2.html")').extract(),
-            [u'https://www.bayes.co.uk/xml/index.xml?/xml/utils/rechecker.html'])
-
-    def test_set(self):
-        """EXSLT set manipulation tests"""
-        # microdata example from http://schema.org/Event
-        body="""
-        <div itemscope itemtype="http://schema.org/Event">
-          <a itemprop="url" href="nba-miami-philidelphia-game3.html">
-          NBA Eastern Conference First Round Playoff Tickets:
-          <span itemprop="name"> Miami Heat at Philadelphia 76ers - Game 3 (Home Game 1) </span>
-          </a>
-
-          <meta itemprop="startDate" content="2016-04-21T20:00">
-            Thu, 04/21/16
-            8:00 p.m.
-
-          <div itemprop="location" itemscope itemtype="http://schema.org/Place">
-            <a itemprop="url" href="wells-fargo-center.html">
-            Wells Fargo Center
-            </a>
-            <div itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
-              <span itemprop="addressLocality">Philadelphia</span>,
-              <span itemprop="addressRegion">PA</span>
-            </div>
-          </div>
-
-          <div itemprop="offers" itemscope itemtype="http://schema.org/AggregateOffer">
-            Priced from: <span itemprop="lowPrice">$35</span>
-            <span itemprop="offerCount">1938</span> tickets left
-          </div>
-        </div>
-        """
-        response = TextResponse(url="http://example.com", body=body)
-        sel = self.sscls(response)
-
-        self.assertEqual(
-            sel.xpath('''//div[@itemtype="http://schema.org/Event"]
-                            //@itemprop''').extract(),
-            [u'url',
-             u'name',
-             u'startDate',
-             u'location',
-             u'url',
-             u'address',
-             u'addressLocality',
-             u'addressRegion',
-             u'offers',
-             u'lowPrice',
-             u'offerCount']
-        )
-
-        self.assertEqual(sel.xpath('''
-                set:difference(//div[@itemtype="http://schema.org/Event"]
-                                    //@itemprop,
-                               //div[@itemtype="http://schema.org/Event"]
-                                    //*[@itemscope]/*/@itemprop)''').extract(),
-                         [u'url', u'name', u'startDate', u'location', u'offers'])
+            self.assertTrue(isinstance(usel, XPathSelector))
\ No newline at end of file
diff --git a/tests/test_selector_csstranslator.py b/tests/test_selector_csstranslator.py
index 1bc8882f8..2d82fcba7 100644
--- a/tests/test_selector_csstranslator.py
+++ b/tests/test_selector_csstranslator.py
@@ -1,153 +1,22 @@
 """
 Selector tests for cssselect backend
 """
+import warnings
 from twisted.trial import unittest
-from scrapy.http import HtmlResponse
-from scrapy.selector.csstranslator import ScrapyHTMLTranslator
-from scrapy.selector import Selector
-from cssselect.parser import SelectorSyntaxError
-from cssselect.xpath import ExpressionError
+from scrapy.selector.csstranslator import (
+    ScrapyHTMLTranslator,
+    ScrapyGenericTranslator,
+    ScrapyXPathExpr
+)
 
 
-HTMLBODY = b'''
-<html>
-<body>
-<div>
- <a id="name-anchor" name="foo"></a>
- <a id="tag-anchor" rel="tag" href="http://localhost/foo">link</a>
- <a id="nofollow-anchor" rel="nofollow" href="https://example.org"> link</a>
- <p id="paragraph">
-   lorem ipsum text
-   <b id="p-b">hi</b> <em id="p-em">there</em>
-   <b id="p-b2">guy</b>
-   <input type="checkbox" id="checkbox-unchecked" />
-   <input type="checkbox" id="checkbox-disabled" disabled="" />
-   <input type="text" id="text-checked" checked="checked" />
-   <input type="hidden" />
-   <input type="hidden" disabled="disabled" />
-   <input type="checkbox" id="checkbox-checked" checked="checked" />
-   <input type="checkbox" id="checkbox-disabled-checked"
-          disabled="disabled" checked="checked" />
-   <fieldset id="fieldset" disabled="disabled">
-     <input type="checkbox" id="checkbox-fieldset-disabled" />
-     <input type="hidden" />
-   </fieldset>
- </p>
- <map name="dummymap">
-   <area shape="circle" coords="200,250,25" href="foo.html" id="area-href" />
-   <area shape="default" id="area-nohref" />
- </map>
-</div>
-<div class="cool-footer" id="foobar-div" foobar="ab bc cde">
-    <span id="foobar-span">foo ter</span>
-</div>
-</body></html>
-'''
+class DeprecatedClassesTest(unittest.TestCase):
+
+    def test_deprecated_warnings(self):
+        for cls in [ScrapyHTMLTranslator, ScrapyGenericTranslator, ScrapyXPathExpr]:
+            with warnings.catch_warnings(record=True) as w:
+                obj = cls()
+                self.assertIn('%s is deprecated' % cls.__name__, str(w[-1].message),
+                              'Missing deprecate warning for %s' % cls.__name__)
 
 
-class TranslatorMixinTest(unittest.TestCase):
-
-    tr_cls = ScrapyHTMLTranslator
-
-    def setUp(self):
-        self.tr = self.tr_cls()
-        self.c2x = self.tr.css_to_xpath
-
-    def test_attr_function(self):
-        cases = [
-            ('::attr(name)', u'descendant-or-self::*/@name'),
-            ('a::attr(href)', u'descendant-or-self::a/@href'),
-            ('a ::attr(img)', u'descendant-or-self::a/descendant-or-self::*/@img'),
-            ('a > ::attr(class)', u'descendant-or-self::a/*/@class'),
-        ]
-        for css, xpath in cases:
-            self.assertEqual(self.c2x(css), xpath, css)
-
-    def test_attr_function_exception(self):
-        cases = [
-            ('::attr(12)', ExpressionError),
-            ('::attr(34test)', ExpressionError),
-            ('::attr(@href)', SelectorSyntaxError),
-        ]
-        for css, exc in cases:
-            self.assertRaises(exc, self.c2x, css)
-
-    def test_text_pseudo_element(self):
-        cases = [
-            ('::text', u'descendant-or-self::text()'),
-            ('p::text', u'descendant-or-self::p/text()'),
-            ('p ::text', u'descendant-or-self::p/descendant-or-self::text()'),
-            ('#id::text', u"descendant-or-self::*[@id = 'id']/text()"),
-            ('p#id::text', u"descendant-or-self::p[@id = 'id']/text()"),
-            ('p#id ::text', u"descendant-or-self::p[@id = 'id']/descendant-or-self::text()"),
-            ('p#id > ::text', u"descendant-or-self::p[@id = 'id']/*/text()"),
-            ('p#id ~ ::text', u"descendant-or-self::p[@id = 'id']/following-sibling::*/text()"),
-            ('a[href]::text', u'descendant-or-self::a[@href]/text()'),
-            ('a[href] ::text', u'descendant-or-self::a[@href]/descendant-or-self::text()'),
-            ('p::text, a::text', u"descendant-or-self::p/text() | descendant-or-self::a/text()"),
-        ]
-        for css, xpath in cases:
-            self.assertEqual(self.c2x(css), xpath, css)
-
-    def test_pseudo_function_exception(self):
-        cases = [
-            ('::attribute(12)', ExpressionError),
-            ('::text()', ExpressionError),
-            ('::attr(@href)', SelectorSyntaxError),
-        ]
-        for css, exc in cases:
-            self.assertRaises(exc, self.c2x, css)
-
-    def test_unknown_pseudo_element(self):
-        cases = [
-            ('::text-node', ExpressionError),
-        ]
-        for css, exc in cases:
-            self.assertRaises(exc, self.c2x, css)
-
-    def test_unknown_pseudo_class(self):
-        cases = [
-            (':text', ExpressionError),
-            (':attribute(name)', ExpressionError),
-        ]
-        for css, exc in cases:
-            self.assertRaises(exc, self.c2x, css)
-
-
-class CSSSelectorTest(unittest.TestCase):
-
-    sscls = Selector
-
-    def setUp(self):
-        self.htmlresponse = HtmlResponse('http://example.com', body=HTMLBODY)
-        self.sel = self.sscls(self.htmlresponse)
-
-    def x(self, *a, **kw):
-        return [v.strip() for v in self.sel.css(*a, **kw).extract() if v.strip()]
-
-    def test_selector_simple(self):
-        for x in self.sel.css('input'):
-            self.assertTrue(isinstance(x, self.sel.__class__), x)
-        self.assertEqual(self.sel.css('input').extract(),
-                         [x.extract() for x in self.sel.css('input')])
-
-    def test_text_pseudo_element(self):
-        self.assertEqual(self.x('#p-b2'), [u'<b id="p-b2">guy</b>'])
-        self.assertEqual(self.x('#p-b2::text'), [u'guy'])
-        self.assertEqual(self.x('#p-b2 ::text'), [u'guy'])
-        self.assertEqual(self.x('#paragraph::text'), [u'lorem ipsum text'])
-        self.assertEqual(self.x('#paragraph ::text'), [u'lorem ipsum text', u'hi', u'there', u'guy'])
-        self.assertEqual(self.x('p::text'), [u'lorem ipsum text'])
-        self.assertEqual(self.x('p ::text'), [u'lorem ipsum text', u'hi', u'there', u'guy'])
-
-    def test_attribute_function(self):
-        self.assertEqual(self.x('#p-b2::attr(id)'), [u'p-b2'])
-        self.assertEqual(self.x('.cool-footer::attr(class)'), [u'cool-footer'])
-        self.assertEqual(self.x('.cool-footer ::attr(id)'), [u'foobar-div', u'foobar-span'])
-        self.assertEqual(self.x('map[name="dummymap"] ::attr(shape)'), [u'circle', u'default'])
-
-    def test_nested_selector(self):
-        self.assertEqual(self.sel.css('p').css('b::text').extract(),
-                         [u'hi', u'guy'])
-        self.assertEqual(self.sel.css('div').css('area:last-child').extract(),
-                         [u'<area shape="default" id="area-nohref">'])