diff --git a/tests/document/test_indexes.py b/tests/document/test_indexes.py
index 90402c46..be857b59 100644
--- a/tests/document/test_indexes.py
+++ b/tests/document/test_indexes.py
@@ -544,23 +544,19 @@ class TestIndexes(unittest.TestCase):
             BlogPost(name=name).save()
 
         query_result = BlogPost.objects.collation(base).order_by("name")
-        self.assertEqual(
-            [x.name for x in query_result], sorted(names, key=lambda x: x.lower())
-        )
-        self.assertEqual(5, query_result.count())
+        assert [x.name for x in query_result] == sorted(names, key=lambda x: x.lower())
+        assert 5 == query_result.count()
 
         query_result = BlogPost.objects.collation(Collation(**base)).order_by("name")
-        self.assertEqual(
-            [x.name for x in query_result], sorted(names, key=lambda x: x.lower())
-        )
-        self.assertEqual(5, query_result.count())
+        assert [x.name for x in query_result] == sorted(names, key=lambda x: x.lower())
+        assert 5 == query_result.count()
 
         incorrect_collation = {"arndom": "wrdo"}
-        with self.assertRaises(OperationFailure):
+        with pytest.raises(OperationFailure):
             BlogPost.objects.collation(incorrect_collation).count()
 
         query_result = BlogPost.objects.collation({}).order_by("name")
-        self.assertEqual([x.name for x in query_result], sorted(names))
+        assert [x.name for x in query_result] == sorted(names)
 
     def test_unique(self):
         """Ensure that uniqueness constraints are applied to fields.
diff --git a/tests/queryset/test_queryset.py b/tests/queryset/test_queryset.py
index 79f5793d..7812ab66 100644
--- a/tests/queryset/test_queryset.py
+++ b/tests/queryset/test_queryset.py
@@ -4626,7 +4626,8 @@ class TestQueryset(unittest.TestCase):
         bars = Bar.objects.read_preference(ReadPreference.SECONDARY_PREFERRED)
         assert bars._read_preference == ReadPreference.SECONDARY_PREFERRED
         assert (
-            bars._cursor.collection.read_preference == ReadPreference.SECONDARY_PREFERRED
+            bars._cursor.collection.read_preference
+            == ReadPreference.SECONDARY_PREFERRED
         )
 
         # Make sure that `.read_preference(...)` does accept string values.
@@ -5765,13 +5766,13 @@ class TestQueryset(unittest.TestCase):
 
     def test_no_cursor_timeout(self):
         qs = self.Person.objects()
-        self.assertEqual(qs._cursor_args, {})  # ensure no regression of  #2148
+        assert qs._cursor_args == {}  # ensure no regression of  #2148
 
         qs = self.Person.objects().timeout(True)
-        self.assertEqual(qs._cursor_args, {})
+        assert qs._cursor_args == {}
 
         qs = self.Person.objects().timeout(False)
-        self.assertEqual(qs._cursor_args, {"no_cursor_timeout": True})
+        assert qs._cursor_args == {"no_cursor_timeout": True}
 
 
 if __name__ == "__main__":
diff --git a/tests/test_connection.py b/tests/test_connection.py
index acaab904..e40a6994 100644
--- a/tests/test_connection.py
+++ b/tests/test_connection.py
@@ -625,8 +625,8 @@ class ConnectionTest(unittest.TestCase):
             alias="conn1", host="mongodb://localhost/testing?w=1&journal=true"
         )
         conn2 = connect("testing", alias="conn2", w=1, journal=True)
-        self.assertEqual(conn1.write_concern.document, {"w": 1, "j": True})
-        self.assertEqual(conn2.write_concern.document, {"w": 1, "j": True})
+        assert conn1.write_concern.document == {"w": 1, "j": True}
+        assert conn2.write_concern.document == {"w": 1, "j": True}
 
     def test_connect_with_replicaset_via_uri(self):
         """Ensure connect() works when specifying a replicaSet via the