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Extract cache/backend.py to mizan-core (Tier A)

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cache/backend.py is pure framework-agnostic key-value abstraction —
CacheBackend Protocol, MemoryCache, RedisCache. No Django imports.
Moves to cores/mizan-python/src/mizan_core/cache/backend.py with no
content changes; mizan-django re-imports.

Verified: mizan-core 15/15, mizan-django 348 pass / 21 skip.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Ryth Azhur
2026-05-06 14:23:01 -04:00
parent 37e61c646b
commit 9150cdc5ee
3 changed files with 7 additions and 7 deletions
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2
backends/mizan-django/src/mizan/cache/__init__.py vendored
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@@ -15,7 +15,7 @@ import logging
import threading import threading
from typing import Any from typing import Any
from .backend import CacheBackend, MemoryCache, RedisCache from mizan_core.cache.backend import CacheBackend, MemoryCache, RedisCache
from mizan_core.cache.keys import derive_cache_key, CONTEXT_KEY_PREFIX from mizan_core.cache.keys import derive_cache_key, CONTEXT_KEY_PREFIX
logger = logging.getLogger("mizan.cache") logger = logging.getLogger("mizan.cache")

12
backends/mizan-django/src/mizan/tests/test_core.py
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@@ -2782,7 +2782,7 @@ class CacheBackendTests(TestCase):
"""Tests for MemoryCache backend operations.""" """Tests for MemoryCache backend operations."""
def setUp(self): def setUp(self):
from mizan.cache.backend import MemoryCache from mizan_core.cache.backend import MemoryCache
self.cache = MemoryCache() self.cache = MemoryCache()
def test_get_miss(self): def test_get_miss(self):
@@ -2825,7 +2825,7 @@ class CachePurgeTests(TestCase):
def setUp(self): def setUp(self):
from mizan.cache import cache_put, set_cache from mizan.cache import cache_put, set_cache
from mizan.cache.backend import MemoryCache from mizan_core.cache.backend import MemoryCache
self.cache = MemoryCache() self.cache = MemoryCache()
set_cache(self.cache) set_cache(self.cache)
@@ -2869,7 +2869,7 @@ class CacheIntegrationTests(TestCase):
self.factory = RequestFactory() self.factory = RequestFactory()
from mizan.cache import set_cache from mizan.cache import set_cache
from mizan.cache.backend import MemoryCache from mizan_core.cache.backend import MemoryCache
from mizan.setup.settings import clear_settings_cache from mizan.setup.settings import clear_settings_cache
self.cache = MemoryCache() self.cache = MemoryCache()
@@ -3139,7 +3139,7 @@ class CachePolicyIntegrationTests(TestCase):
"""Context with mixed revs uses the maximum for cache key.""" """Context with mixed revs uses the maximum for cache key."""
from mizan_core.cache.keys import derive_cache_key from mizan_core.cache.keys import derive_cache_key
from mizan.cache import set_cache, reset_cache from mizan.cache import set_cache, reset_cache
from mizan.cache.backend import MemoryCache from mizan_core.cache.backend import MemoryCache
from mizan.setup.settings import clear_settings_cache from mizan.setup.settings import clear_settings_cache
from django.test import override_settings from django.test import override_settings
@@ -3292,7 +3292,7 @@ class RedisCacheBackendTests(TestCase):
def setUp(self): def setUp(self):
if _SKIP_REDIS: if _SKIP_REDIS:
self.skipTest(_SKIP_MSG) self.skipTest(_SKIP_MSG)
from mizan.cache.backend import RedisCache from mizan_core.cache.backend import RedisCache
self.cache = RedisCache(REDIS_URL, prefix="mizan:test:") self.cache = RedisCache(REDIS_URL, prefix="mizan:test:")
self.cache.clear() self.cache.clear()
@@ -3370,7 +3370,7 @@ class RedisCachePurgeTests(TestCase):
def setUp(self): def setUp(self):
if _SKIP_REDIS: if _SKIP_REDIS:
self.skipTest(_SKIP_MSG) self.skipTest(_SKIP_MSG)
from mizan.cache.backend import RedisCache from mizan_core.cache.backend import RedisCache
from mizan.cache import cache_put from mizan.cache import cache_put
self.cache = RedisCache(REDIS_URL, prefix="mizan:test:") self.cache = RedisCache(REDIS_URL, prefix="mizan:test:")
self.cache.clear() self.cache.clear()

0
backends/mizan-django/src/mizan/cache/backend.py → cores/mizan-python/src/mizan_core/cache/backend.py vendored
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