Paint it Black by the Rolling Stones (#208)

1 files changed, 162 insertions, 133 deletions

diff --git a/tests/test_bcrypt.py b/tests/test_bcrypt.py
index 3f00875..37baa54 100644
--- a/tests/test_bcrypt.py
+++ b/tests/test_bcrypt.py
@@ -139,12 +139,12 @@ _test_vectors = [
         b"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
         b"chars after 72 are ignored as usual",
         b"$2a$05$/OK.fbVrR/bpIqNJ5ianF.",
-        b"$2a$05$/OK.fbVrR/bpIqNJ5ianF.swQOIzjOiJ9GHEPuhEkvqrUyvWhEMx6"
+        b"$2a$05$/OK.fbVrR/bpIqNJ5ianF.swQOIzjOiJ9GHEPuhEkvqrUyvWhEMx6",
     ),
     (
         b"\xa3",
         b"$2a$05$/OK.fbVrR/bpIqNJ5ianF.",
-        b"$2a$05$/OK.fbVrR/bpIqNJ5ianF.Sa7shbm4.OzKpvFnX1pQLmQW96oUlCq"
+        b"$2a$05$/OK.fbVrR/bpIqNJ5ianF.Sa7shbm4.OzKpvFnX1pQLmQW96oUlCq",
     ),
 ]
 
@@ -167,29 +167,32 @@ def test_gensalt_basic(monkeypatch):
     assert bcrypt.gensalt() == b"$2b$12$KB.uKB.uKB.uKB.uKB.uK."
 
 
-@pytest.mark.parametrize(("rounds", "expected"), [
-    (4, b"$2b$04$KB.uKB.uKB.uKB.uKB.uK."),
-    (5, b"$2b$05$KB.uKB.uKB.uKB.uKB.uK."),
-    (6, b"$2b$06$KB.uKB.uKB.uKB.uKB.uK."),
-    (7, b"$2b$07$KB.uKB.uKB.uKB.uKB.uK."),
-    (8, b"$2b$08$KB.uKB.uKB.uKB.uKB.uK."),
-    (9, b"$2b$09$KB.uKB.uKB.uKB.uKB.uK."),
-    (10, b"$2b$10$KB.uKB.uKB.uKB.uKB.uK."),
-    (11, b"$2b$11$KB.uKB.uKB.uKB.uKB.uK."),
-    (12, b"$2b$12$KB.uKB.uKB.uKB.uKB.uK."),
-    (13, b"$2b$13$KB.uKB.uKB.uKB.uKB.uK."),
-    (14, b"$2b$14$KB.uKB.uKB.uKB.uKB.uK."),
-    (15, b"$2b$15$KB.uKB.uKB.uKB.uKB.uK."),
-    (16, b"$2b$16$KB.uKB.uKB.uKB.uKB.uK."),
-    (17, b"$2b$17$KB.uKB.uKB.uKB.uKB.uK."),
-    (18, b"$2b$18$KB.uKB.uKB.uKB.uKB.uK."),
-    (19, b"$2b$19$KB.uKB.uKB.uKB.uKB.uK."),
-    (20, b"$2b$20$KB.uKB.uKB.uKB.uKB.uK."),
-    (21, b"$2b$21$KB.uKB.uKB.uKB.uKB.uK."),
-    (22, b"$2b$22$KB.uKB.uKB.uKB.uKB.uK."),
-    (23, b"$2b$23$KB.uKB.uKB.uKB.uKB.uK."),
-    (24, b"$2b$24$KB.uKB.uKB.uKB.uKB.uK."),
-])
+@pytest.mark.parametrize(
+    ("rounds", "expected"),
+    [
+        (4, b"$2b$04$KB.uKB.uKB.uKB.uKB.uK."),
+        (5, b"$2b$05$KB.uKB.uKB.uKB.uKB.uK."),
+        (6, b"$2b$06$KB.uKB.uKB.uKB.uKB.uK."),
+        (7, b"$2b$07$KB.uKB.uKB.uKB.uKB.uK."),
+        (8, b"$2b$08$KB.uKB.uKB.uKB.uKB.uK."),
+        (9, b"$2b$09$KB.uKB.uKB.uKB.uKB.uK."),
+        (10, b"$2b$10$KB.uKB.uKB.uKB.uKB.uK."),
+        (11, b"$2b$11$KB.uKB.uKB.uKB.uKB.uK."),
+        (12, b"$2b$12$KB.uKB.uKB.uKB.uKB.uK."),
+        (13, b"$2b$13$KB.uKB.uKB.uKB.uKB.uK."),
+        (14, b"$2b$14$KB.uKB.uKB.uKB.uKB.uK."),
+        (15, b"$2b$15$KB.uKB.uKB.uKB.uKB.uK."),
+        (16, b"$2b$16$KB.uKB.uKB.uKB.uKB.uK."),
+        (17, b"$2b$17$KB.uKB.uKB.uKB.uKB.uK."),
+        (18, b"$2b$18$KB.uKB.uKB.uKB.uKB.uK."),
+        (19, b"$2b$19$KB.uKB.uKB.uKB.uKB.uK."),
+        (20, b"$2b$20$KB.uKB.uKB.uKB.uKB.uK."),
+        (21, b"$2b$21$KB.uKB.uKB.uKB.uKB.uK."),
+        (22, b"$2b$22$KB.uKB.uKB.uKB.uKB.uK."),
+        (23, b"$2b$23$KB.uKB.uKB.uKB.uKB.uK."),
+        (24, b"$2b$24$KB.uKB.uKB.uKB.uKB.uK."),
+    ],
+)
 def test_gensalt_rounds_valid(rounds, expected, monkeypatch):
     monkeypatch.setattr(os, "urandom", lambda n: b"0000000000000000")
     assert bcrypt.gensalt(rounds) == expected
@@ -242,49 +245,48 @@ def test_hashpw_invalid():
 
 
 def test_checkpw_wrong_password():
-    assert bcrypt.checkpw(
-        b"badpass",
-        b"$2b$04$2Siw3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe"
-    ) is False
+    assert (
+        bcrypt.checkpw(
+            b"badpass",
+            b"$2b$04$2Siw3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe",
+        )
+        is False
+    )
 
 
 def test_checkpw_bad_salt():
     with pytest.raises(ValueError):
         bcrypt.checkpw(
             b"badpass",
-            b"$2b$04$?Siw3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe"
+            b"$2b$04$?Siw3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe",
         )
 
 
 def test_checkpw_str_password():
     with pytest.raises(TypeError):
         bcrypt.checkpw(
-            six.text_type("password"),
-            b"$2b$04$cVWp4XaNU8a4v1uMRum2SO",
+            six.text_type("password"), b"$2b$04$cVWp4XaNU8a4v1uMRum2SO",
         )
 
 
 def test_checkpw_str_salt():
     with pytest.raises(TypeError):
         bcrypt.checkpw(
-            b"password",
-            six.text_type("$2b$04$cVWp4XaNU8a4v1uMRum2SO"),
+            b"password", six.text_type("$2b$04$cVWp4XaNU8a4v1uMRum2SO"),
         )
 
 
 def test_hashpw_str_password():
     with pytest.raises(TypeError):
         bcrypt.hashpw(
-            six.text_type("password"),
-            b"$2b$04$cVWp4XaNU8a4v1uMRum2SO",
+            six.text_type("password"), b"$2b$04$cVWp4XaNU8a4v1uMRum2SO",
         )
 
 
 def test_hashpw_str_salt():
     with pytest.raises(TypeError):
         bcrypt.hashpw(
-            b"password",
-            six.text_type("$2b$04$cVWp4XaNU8a4v1uMRum2SO"),
+            b"password", six.text_type("$2b$04$cVWp4XaNU8a4v1uMRum2SO"),
         )
 
 
@@ -292,13 +294,13 @@ def test_checkpw_nul_byte():
     with pytest.raises(ValueError):
         bcrypt.checkpw(
             b"abc\0def",
-            b"$2b$04$2Siw3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe"
+            b"$2b$04$2Siw3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe",
         )
 
     with pytest.raises(ValueError):
         bcrypt.checkpw(
             b"abcdef",
-            b"$2b$04$2S\0w3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe"
+            b"$2b$04$2S\0w3Nv3Q/gTOIPetAyPr.GNj3aO0lb1E5E9UumYGKjP9BYqlNWJe",
         )
 
 
@@ -319,86 +321,116 @@ def test_checkpw_extra_data():
 
 @pytest.mark.parametrize(
     ("rounds", "password", "salt", "expected"),
-    [[
-        4, b"password", b"salt",
-        b"\x5b\xbf\x0c\xc2\x93\x58\x7f\x1c\x36\x35\x55\x5c\x27\x79\x65\x98"
-        b"\xd4\x7e\x57\x90\x71\xbf\x42\x7e\x9d\x8f\xbe\x84\x2a\xba\x34\xd9"
-    ], [
-        4, b"password", b"\x00",
-        b"\xc1\x2b\x56\x62\x35\xee\xe0\x4c\x21\x25\x98\x97\x0a\x57\x9a\x67"
-    ], [
-        4, b"\x00", b"salt",
-        b"\x60\x51\xbe\x18\xc2\xf4\xf8\x2c\xbf\x0e\xfe\xe5\x47\x1b\x4b\xb9"
-    ], [
-        # nul bytes in password and string
-        4, b"password\x00", b"salt\x00",
-        b"\x74\x10\xe4\x4c\xf4\xfa\x07\xbf\xaa\xc8\xa9\x28\xb1\x72\x7f\xac"
-        b"\x00\x13\x75\xe7\xbf\x73\x84\x37\x0f\x48\xef\xd1\x21\x74\x30\x50"
-    ], [
-        4, b"pass\x00wor", b"sa\0l",
-        b"\xc2\xbf\xfd\x9d\xb3\x8f\x65\x69\xef\xef\x43\x72\xf4\xde\x83\xc0"
-    ], [
-        4, b"pass\x00word", b"sa\0lt",
-        b"\x4b\xa4\xac\x39\x25\xc0\xe8\xd7\xf0\xcd\xb6\xbb\x16\x84\xa5\x6f"
-    ], [
-        # bigger key
-        8, b"password", b"salt",
-        b"\xe1\x36\x7e\xc5\x15\x1a\x33\xfa\xac\x4c\xc1\xc1\x44\xcd\x23\xfa"
-        b"\x15\xd5\x54\x84\x93\xec\xc9\x9b\x9b\x5d\x9c\x0d\x3b\x27\xbe\xc7"
-        b"\x62\x27\xea\x66\x08\x8b\x84\x9b\x20\xab\x7a\xa4\x78\x01\x02\x46"
-        b"\xe7\x4b\xba\x51\x72\x3f\xef\xa9\xf9\x47\x4d\x65\x08\x84\x5e\x8d"
-    ], [
-        # more rounds
-        42, b"password", b"salt",
-        b"\x83\x3c\xf0\xdc\xf5\x6d\xb6\x56\x08\xe8\xf0\xdc\x0c\xe8\x82\xbd"
-    ], [
-        # longer password
-        8,
-        b"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do "
-        b"eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut "
-        b"enim ad minim veniam, quis nostrud exercitation ullamco laboris "
-        b"nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor "
-        b"in reprehenderit in voluptate velit esse cillum dolore eu fugiat "
-        b"nulla pariatur. Excepteur sint occaecat cupidatat non proident, "
-        b"sunt in culpa qui officia deserunt mollit anim id est laborum.",
-        b"salis\x00",
-        b"\x10\x97\x8b\x07\x25\x3d\xf5\x7f\x71\xa1\x62\xeb\x0e\x8a\xd3\x0a"
-    ], [
-        # "unicode"
-        8,
-        b"\x0d\xb3\xac\x94\xb3\xee\x53\x28\x4f\x4a\x22\x89\x3b\x3c\x24\xae",
-        b"\x3a\x62\xf0\xf0\xdb\xce\xf8\x23\xcf\xcc\x85\x48\x56\xea\x10\x28",
-        b"\x20\x44\x38\x17\x5e\xee\x7c\xe1\x36\xc9\x1b\x49\xa6\x79\x23\xff"
-    ], [
-        # very large key
-        8,
-        b"\x0d\xb3\xac\x94\xb3\xee\x53\x28\x4f\x4a\x22\x89\x3b\x3c\x24\xae",
-        b"\x3a\x62\xf0\xf0\xdb\xce\xf8\x23\xcf\xcc\x85\x48\x56\xea\x10\x28",
-        b"\x20\x54\xb9\xff\xf3\x4e\x37\x21\x44\x03\x34\x74\x68\x28\xe9\xed"
-        b"\x38\xde\x4b\x72\xe0\xa6\x9a\xdc\x17\x0a\x13\xb5\xe8\xd6\x46\x38"
-        b"\x5e\xa4\x03\x4a\xe6\xd2\x66\x00\xee\x23\x32\xc5\xed\x40\xad\x55"
-        b"\x7c\x86\xe3\x40\x3f\xbb\x30\xe4\xe1\xdc\x1a\xe0\x6b\x99\xa0\x71"
-        b"\x36\x8f\x51\x8d\x2c\x42\x66\x51\xc9\xe7\xe4\x37\xfd\x6c\x91\x5b"
-        b"\x1b\xbf\xc3\xa4\xce\xa7\x14\x91\x49\x0e\xa7\xaf\xb7\xdd\x02\x90"
-        b"\xa6\x78\xa4\xf4\x41\x12\x8d\xb1\x79\x2e\xab\x27\x76\xb2\x1e\xb4"
-        b"\x23\x8e\x07\x15\xad\xd4\x12\x7d\xff\x44\xe4\xb3\xe4\xcc\x4c\x4f"
-        b"\x99\x70\x08\x3f\x3f\x74\xbd\x69\x88\x73\xfd\xf6\x48\x84\x4f\x75"
-        b"\xc9\xbf\x7f\x9e\x0c\x4d\x9e\x5d\x89\xa7\x78\x39\x97\x49\x29\x66"
-        b"\x61\x67\x07\x61\x1c\xb9\x01\xde\x31\xa1\x97\x26\xb6\xe0\x8c\x3a"
-        b"\x80\x01\x66\x1f\x2d\x5c\x9d\xcc\x33\xb4\xaa\x07\x2f\x90\xdd\x0b"
-        b"\x3f\x54\x8d\x5e\xeb\xa4\x21\x13\x97\xe2\xfb\x06\x2e\x52\x6e\x1d"
-        b"\x68\xf4\x6a\x4c\xe2\x56\x18\x5b\x4b\xad\xc2\x68\x5f\xbe\x78\xe1"
-        b"\xc7\x65\x7b\x59\xf8\x3a\xb9\xab\x80\xcf\x93\x18\xd6\xad\xd1\xf5"
-        b"\x93\x3f\x12\xd6\xf3\x61\x82\xc8\xe8\x11\x5f\x68\x03\x0a\x12\x44"
-    ], [
-        # UTF-8 Greek characters "odysseus" / "telemachos"
-        8,
-        b"\xe1\xbd\x88\xce\xb4\xcf\x85\xcf\x83\xcf\x83\xce\xb5\xcf\x8d\xcf"
-        b"\x82",
-        b"\xce\xa4\xce\xb7\xce\xbb\xce\xad\xce\xbc\xce\xb1\xcf\x87\xce\xbf"
-        b"\xcf\x82",
-        b"\x43\x66\x6c\x9b\x09\xef\x33\xed\x8c\x27\xe8\xe8\xf3\xe2\xd8\xe6"
-    ]])
+    [
+        [
+            4,
+            b"password",
+            b"salt",
+            b"\x5b\xbf\x0c\xc2\x93\x58\x7f\x1c\x36\x35\x55\x5c\x27\x79\x65\x98"
+            b"\xd4\x7e\x57\x90\x71\xbf\x42\x7e\x9d\x8f\xbe\x84\x2a\xba\x34\xd9",
+        ],
+        [
+            4,
+            b"password",
+            b"\x00",
+            b"\xc1\x2b\x56\x62\x35\xee\xe0\x4c\x21\x25\x98\x97\x0a\x57\x9a\x67",
+        ],
+        [
+            4,
+            b"\x00",
+            b"salt",
+            b"\x60\x51\xbe\x18\xc2\xf4\xf8\x2c\xbf\x0e\xfe\xe5\x47\x1b\x4b\xb9",
+        ],
+        [
+            # nul bytes in password and string
+            4,
+            b"password\x00",
+            b"salt\x00",
+            b"\x74\x10\xe4\x4c\xf4\xfa\x07\xbf\xaa\xc8\xa9\x28\xb1\x72\x7f\xac"
+            b"\x00\x13\x75\xe7\xbf\x73\x84\x37\x0f\x48\xef\xd1\x21\x74\x30\x50",
+        ],
+        [
+            4,
+            b"pass\x00wor",
+            b"sa\0l",
+            b"\xc2\xbf\xfd\x9d\xb3\x8f\x65\x69\xef\xef\x43\x72\xf4\xde\x83\xc0",
+        ],
+        [
+            4,
+            b"pass\x00word",
+            b"sa\0lt",
+            b"\x4b\xa4\xac\x39\x25\xc0\xe8\xd7\xf0\xcd\xb6\xbb\x16\x84\xa5\x6f",
+        ],
+        [
+            # bigger key
+            8,
+            b"password",
+            b"salt",
+            b"\xe1\x36\x7e\xc5\x15\x1a\x33\xfa\xac\x4c\xc1\xc1\x44\xcd\x23\xfa"
+            b"\x15\xd5\x54\x84\x93\xec\xc9\x9b\x9b\x5d\x9c\x0d\x3b\x27\xbe\xc7"
+            b"\x62\x27\xea\x66\x08\x8b\x84\x9b\x20\xab\x7a\xa4\x78\x01\x02\x46"
+            b"\xe7\x4b\xba\x51\x72\x3f\xef\xa9\xf9\x47\x4d\x65\x08\x84\x5e\x8d",
+        ],
+        [
+            # more rounds
+            42,
+            b"password",
+            b"salt",
+            b"\x83\x3c\xf0\xdc\xf5\x6d\xb6\x56\x08\xe8\xf0\xdc\x0c\xe8\x82\xbd",
+        ],
+        [
+            # longer password
+            8,
+            b"Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do "
+            b"eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut "
+            b"enim ad minim veniam, quis nostrud exercitation ullamco laboris "
+            b"nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor "
+            b"in reprehenderit in voluptate velit esse cillum dolore eu fugiat "
+            b"nulla pariatur. Excepteur sint occaecat cupidatat non proident, "
+            b"sunt in culpa qui officia deserunt mollit anim id est laborum.",
+            b"salis\x00",
+            b"\x10\x97\x8b\x07\x25\x3d\xf5\x7f\x71\xa1\x62\xeb\x0e\x8a\xd3\x0a",
+        ],
+        [
+            # "unicode"
+            8,
+            b"\x0d\xb3\xac\x94\xb3\xee\x53\x28\x4f\x4a\x22\x89\x3b\x3c\x24\xae",
+            b"\x3a\x62\xf0\xf0\xdb\xce\xf8\x23\xcf\xcc\x85\x48\x56\xea\x10\x28",
+            b"\x20\x44\x38\x17\x5e\xee\x7c\xe1\x36\xc9\x1b\x49\xa6\x79\x23\xff",
+        ],
+        [
+            # very large key
+            8,
+            b"\x0d\xb3\xac\x94\xb3\xee\x53\x28\x4f\x4a\x22\x89\x3b\x3c\x24\xae",
+            b"\x3a\x62\xf0\xf0\xdb\xce\xf8\x23\xcf\xcc\x85\x48\x56\xea\x10\x28",
+            b"\x20\x54\xb9\xff\xf3\x4e\x37\x21\x44\x03\x34\x74\x68\x28\xe9\xed"
+            b"\x38\xde\x4b\x72\xe0\xa6\x9a\xdc\x17\x0a\x13\xb5\xe8\xd6\x46\x38"
+            b"\x5e\xa4\x03\x4a\xe6\xd2\x66\x00\xee\x23\x32\xc5\xed\x40\xad\x55"
+            b"\x7c\x86\xe3\x40\x3f\xbb\x30\xe4\xe1\xdc\x1a\xe0\x6b\x99\xa0\x71"
+            b"\x36\x8f\x51\x8d\x2c\x42\x66\x51\xc9\xe7\xe4\x37\xfd\x6c\x91\x5b"
+            b"\x1b\xbf\xc3\xa4\xce\xa7\x14\x91\x49\x0e\xa7\xaf\xb7\xdd\x02\x90"
+            b"\xa6\x78\xa4\xf4\x41\x12\x8d\xb1\x79\x2e\xab\x27\x76\xb2\x1e\xb4"
+            b"\x23\x8e\x07\x15\xad\xd4\x12\x7d\xff\x44\xe4\xb3\xe4\xcc\x4c\x4f"
+            b"\x99\x70\x08\x3f\x3f\x74\xbd\x69\x88\x73\xfd\xf6\x48\x84\x4f\x75"
+            b"\xc9\xbf\x7f\x9e\x0c\x4d\x9e\x5d\x89\xa7\x78\x39\x97\x49\x29\x66"
+            b"\x61\x67\x07\x61\x1c\xb9\x01\xde\x31\xa1\x97\x26\xb6\xe0\x8c\x3a"
+            b"\x80\x01\x66\x1f\x2d\x5c\x9d\xcc\x33\xb4\xaa\x07\x2f\x90\xdd\x0b"
+            b"\x3f\x54\x8d\x5e\xeb\xa4\x21\x13\x97\xe2\xfb\x06\x2e\x52\x6e\x1d"
+            b"\x68\xf4\x6a\x4c\xe2\x56\x18\x5b\x4b\xad\xc2\x68\x5f\xbe\x78\xe1"
+            b"\xc7\x65\x7b\x59\xf8\x3a\xb9\xab\x80\xcf\x93\x18\xd6\xad\xd1\xf5"
+            b"\x93\x3f\x12\xd6\xf3\x61\x82\xc8\xe8\x11\x5f\x68\x03\x0a\x12\x44",
+        ],
+        [
+            # UTF-8 Greek characters "odysseus" / "telemachos"
+            8,
+            b"\xe1\xbd\x88\xce\xb4\xcf\x85\xcf\x83\xcf\x83\xce\xb5\xcf\x8d\xcf"
+            b"\x82",
+            b"\xce\xa4\xce\xb7\xce\xbb\xce\xad\xce\xbc\xce\xb1\xcf\x87\xce\xbf"
+            b"\xcf\x82",
+            b"\x43\x66\x6c\x9b\x09\xef\x33\xed\x8c\x27\xe8\xe8\xf3\xe2\xd8\xe6",
+        ],
+    ],
+)
 def test_kdf(rounds, password, salt, expected):
     derived = bcrypt.kdf(
         password, salt, len(expected), rounds, ignore_few_rounds=True
@@ -415,22 +447,16 @@ def test_kdf_str_password():
 
 def test_kdf_str_salt():
     with pytest.raises(TypeError):
-        bcrypt.kdf(
-            b"password", six.text_type("salt"), 10, 10
-        )
+        bcrypt.kdf(b"password", six.text_type("salt"), 10, 10)
 
 
 def test_kdf_no_warn_rounds():
-    bcrypt.kdf(
-        b"password", b"salt", 10, 10, True
-    )
+    bcrypt.kdf(b"password", b"salt", 10, 10, True)
 
 
 def test_kdf_warn_rounds():
     with pytest.warns(UserWarning):
-        bcrypt.kdf(
-            b"password", b"salt", 10, 10
-        )
+        bcrypt.kdf(b"password", b"salt", 10, 10)
 
 
 @pytest.mark.parametrize(
@@ -444,7 +470,7 @@ def test_kdf_warn_rounds():
         (b"password", b"$2b$04$cVWp4XaNU8a4v1uMRum2SO", -3, 10, ValueError),
         (b"password", b"$2b$04$cVWp4XaNU8a4v1uMRum2SO", 513, 10, ValueError),
         (b"password", b"$2b$04$cVWp4XaNU8a4v1uMRum2SO", 20, 0, ValueError),
-    ]
+    ],
 )
 def test_invalid_params(password, salt, desired_key_bytes, rounds, error):
     with pytest.raises(error):
@@ -457,6 +483,9 @@ def test_bcrypt_assert():
 
 
 def test_2a_wraparound_bug():
-    assert bcrypt.hashpw(
-        (b"0123456789" * 26)[:255], b"$2a$04$R1lJ2gkNaoPGdafE.H.16."
-    ) == b"$2a$04$R1lJ2gkNaoPGdafE.H.16.1MKHPvmKwryeulRe225LKProWYwt9Oi"
+    assert (
+        bcrypt.hashpw(
+            (b"0123456789" * 26)[:255], b"$2a$04$R1lJ2gkNaoPGdafE.H.16."
+        )
+        == b"$2a$04$R1lJ2gkNaoPGdafE.H.16.1MKHPvmKwryeulRe225LKProWYwt9Oi"
+    )