ran unittest2pytest

tests/test_utils.py

@@ -2,6 +2,7 @@ import re
 import unittest
 
 from mongoengine.base.utils import LazyRegexCompiler
+import pytest
 
 signal_output = []
 
@@ -12,21 +13,21 @@ class LazyRegexCompilerTest(unittest.TestCase):
             EMAIL_REGEX = LazyRegexCompiler("@", flags=32)
 
         descriptor = UserEmail.__dict__["EMAIL_REGEX"]
-        self.assertIsNone(descriptor._compiled_regex)
+        assert descriptor._compiled_regex is None
 
         regex = UserEmail.EMAIL_REGEX
-        self.assertEqual(regex, re.compile("@", flags=32))
-        self.assertEqual(regex.search("user@domain.com").group(), "@")
+        assert regex == re.compile("@", flags=32)
+        assert regex.search("user@domain.com").group() == "@"
 
         user_email = UserEmail()
-        self.assertIs(user_email.EMAIL_REGEX, UserEmail.EMAIL_REGEX)
+        assert user_email.EMAIL_REGEX is UserEmail.EMAIL_REGEX
 
     def test_lazy_regex_compiler_verify_cannot_set_descriptor_on_instance(self):
         class UserEmail(object):
             EMAIL_REGEX = LazyRegexCompiler("@")
 
         user_email = UserEmail()
-        with self.assertRaises(AttributeError):
+        with pytest.raises(AttributeError):
             user_email.EMAIL_REGEX = re.compile("@")
 
     def test_lazy_regex_compiler_verify_can_override_class_attr(self):
@@ -34,6 +35,4 @@ class LazyRegexCompilerTest(unittest.TestCase):
             EMAIL_REGEX = LazyRegexCompiler("@")
 
         UserEmail.EMAIL_REGEX = re.compile("cookies")
-        self.assertEqual(
-            UserEmail.EMAIL_REGEX.search("Cake & cookies").group(), "cookies"
-        )
+        assert UserEmail.EMAIL_REGEX.search("Cake & cookies").group() == "cookies"