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refactor: Fix #1277 + Cache components' JS/CSS scripts at class creation (#1283)

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* refactor: Cache components' JS and CSS scripts at class creation time

* refactor: add test for no template_rendered signal for component with no template
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Juro Oravec 2025-07-03 12:27:21 +02:00 • committed by GitHub
parent 007009a480
commit c692b7a310
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13 changed files with 138 additions and 58 deletions
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41
tests/test_cache.py
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@ -1,5 +1,3 @@
from django.core.cache.backends.locmem import LocMemCache
from django_components import Component, register
from django_components.testing import djc_test
from django_components.util.cache import LRUCache
@ -68,16 +66,26 @@ class TestCache:
@djc_test
class TestComponentMediaCache:
@djc_test(components_settings={"cache": "test-cache"})
def test_component_media_caching(self):
test_cache = LocMemCache(
"test-cache",
{
"TIMEOUT": None, # No timeout
"MAX_ENTRIES": None, # No max size
"CULL_FREQUENCY": 3,
@djc_test(
components_settings={"cache": "test-cache"},
django_settings={
"CACHES": {
# See https://docs.djangoproject.com/en/5.2/topics/cache/#local-memory-caching
"test-cache": {
"BACKEND": "django.core.cache.backends.locmem.LocMemCache",
"LOCATION": "test-cache",
"TIMEOUT": None, # No timeout
"OPTIONS": {
"MAX_ENTRIES": 10_000,
},
},
},
)
},
)
def test_component_media_caching(self):
from django.core.cache import caches
test_cache = caches["test-cache"]
@register("test_simple")
class TestSimpleComponent(Component):
@ -108,14 +116,6 @@ class TestComponentMediaCache:
def get_css_data(self, args, kwargs, slots, context):
return {"color": "blue"}
# Register our test cache
from django.core.cache import caches
caches["test-cache"] = test_cache
# Render the components to trigger caching
TestMediaAndVarsComponent.render()
# Check that JS/CSS is cached for components that have them
assert test_cache.has_key(f"__components:{TestMediaAndVarsComponent.class_id}:js")
assert test_cache.has_key(f"__components:{TestMediaAndVarsComponent.class_id}:css")
@ -128,6 +128,9 @@ class TestComponentMediaCache:
assert test_cache.get(f"__components:{TestMediaNoVarsComponent.class_id}:js").strip() == "console.log('Hello from JS');" # noqa: E501
assert test_cache.get(f"__components:{TestMediaNoVarsComponent.class_id}:css").strip() == ".novars-component { color: blue; }" # noqa: E501
# Render the components to trigger caching of JS/CSS variables from `get_js_data` / `get_css_data`
TestMediaAndVarsComponent.render()
# Check that we cache JS / CSS scripts generated from `get_js_data` / `get_css_data`
# NOTE: The hashes is generated from the data.
js_vars_hash = "216ecc"