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cultcache-py tests: the format refusals pin their exact text and their type, codec and direction

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Kills the mutants that rewrote the remedy sentence and the write refusal's attributes. Builds.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Meta Vens 2026-10-12 03:42:44 +02:00
commit 7f2c747743
1 changed files with 18 additions and 0 deletions
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18
packages/cultcache-py/tests/test_payload_codec.py
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@ -77,6 +77,24 @@ class PayloadCodecTests(unittest.TestCase):
self.assertEqual(reread.get(modern, "k"), {"n": 1, "schema": "x"})
self.assertEqual(reread.get_envelope(modern, "k").payload, MESSAGEPACK_PAYLOAD_CODEC.encode({"n": 1, "schema": "x"}))
def test_the_read_refusal_text_is_exact_under_each_codec(self) -> None:
with self.assertRaises(CultCachePayloadFormatError) as default:
define_document_type("tests.text").decode_payload(LEGACY_JSON)
self.assertEqual(
str(default.exception),
"tests.text payload is not one MessagePack value (ExtraData); refused on read. A record written by cultcache-py 0.3 "
"or earlier through define_document_type's JSON default is read by defining tests.text with payload_codec=JSON_PAYLOAD_CODEC.",
)
with self.assertRaises(CultCachePayloadFormatError) as json_side:
define_document_type("tests.text", payload_codec=JSON_PAYLOAD_CODEC).decode_payload(b"\x81\xa1a")
self.assertEqual(str(json_side.exception), "tests.text payload is not one JSON value (UnicodeDecodeError); refused on read.")
self.assertEqual((json_side.exception.type_name, json_side.exception.codec, json_side.exception.direction), ("tests.text", "JSON", "read"))
def test_the_write_refusal_carries_its_type_codec_and_direction(self) -> None:
with self.assertRaises(CultCachePayloadFormatError) as caught:
define_document_type("tests.attrs", encode=lambda value: value).encode_payload({1: "a"})
self.assertEqual((caught.exception.type_name, caught.exception.codec, caught.exception.direction), ("tests.attrs", "MessagePack", "write"))
def test_wrong_format_payloads_are_typed_refusals_on_both_sides(self) -> None:
document = define_document_type("tests.faults")
for payload in (b"[1,2]", b'"hi"', b"true", b"null", b"1.5", b"-3", b"12", b"\x93\x01\x02", b"\xc1", b"\xa2\xff\xfe"):