test #8 made tests cleaner

tests/test_linkextractors.py

@@ -2,7 +2,6 @@ import pickle
 import re
 import unittest
 from typing import Optional
-from unittest.mock import Mock
 
 from packaging.version import Version
 from pytest import mark
@@ -854,34 +853,13 @@ class LxmlLinkExtractorTestCase(Base.LinkExtractorTestCase):
         )
 
     def test_link_allowed_is_false_with_empty_url(self):
-        mock_link = Mock()
-        mock_link.url = ""
-        expected = False
-
-        actual = LxmlLinkExtractor()._link_allowed(mock_link)
-
-        self.assertEqual(expected, actual)
+        bad_link = Link("")
+        self.assertFalse(LxmlLinkExtractor()._link_allowed(bad_link))
 
     def test_link_allowed_is_false_with_bad_url_prefix(self):
-        mock_link = Mock()
-        mock_link.url = "htp://should_be_http.com"
-        expected = False
-
-        actual = LxmlLinkExtractor()._link_allowed(mock_link)
-
-        self.assertEqual(expected, actual)
+        bad_link = Link("htp://should_be_http.example")
+        self.assertFalse(LxmlLinkExtractor()._link_allowed(bad_link))
 
     def test_link_allowed_is_false_with_missing_url_prefix(self):
-        mock_link = Mock()
-        mock_link.url = "should_have_prefix.com"
-        expected = False
-
-        actual = LxmlLinkExtractor()._link_allowed(mock_link)
-
-        self.assertEqual(expected, actual)
-
-    def test_link_allowed_raises_with_none_url(self):
-        mock_link = Mock()
-        mock_link.url = None
-
-        self.assertRaises(AttributeError, LxmlLinkExtractor()._link_allowed, mock_link)
+        bad_link = Link("should_have_prefix.example")
+        self.assertFalse(LxmlLinkExtractor()._link_allowed(bad_link))