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# -*- coding: utf-8 -*-
from gitlint.tests.base import BaseTestCase
from gitlint.cache import PropertyCache, cache
class CacheTests(BaseTestCase):
class MyClass(PropertyCache):
""" Simple class that has cached properties, used for testing. """
def __init__(self):
PropertyCache.__init__(self)
self.counter = 0
@property
@cache
def foo(self):
self.counter += 1
return u"bår"
@property
@cache(cachekey=u"hür")
def bar(self):
self.counter += 1
return u"fōo"
def test_cache(self):
# Init new class with cached properties
myclass = self.MyClass()
self.assertEqual(myclass.counter, 0)
self.assertDictEqual(myclass._cache, {})
# Assert that function is called on first access, cache is set
self.assertEqual(myclass.foo, u"bår")
self.assertEqual(myclass.counter, 1)
self.assertDictEqual(myclass._cache, {"foo": u"bår"})
# After function is not called on subsequent access, cache is still set
self.assertEqual(myclass.foo, u"bår")
self.assertEqual(myclass.counter, 1)
self.assertDictEqual(myclass._cache, {"foo": u"bår"})
def test_cache_custom_key(self):
# Init new class with cached properties
myclass = self.MyClass()
self.assertEqual(myclass.counter, 0)
self.assertDictEqual(myclass._cache, {})
# Assert that function is called on first access, cache is set with custom key
self.assertEqual(myclass.bar, u"fōo")
self.assertEqual(myclass.counter, 1)
self.assertDictEqual(myclass._cache, {u"hür": u"fōo"})
# After function is not called on subsequent access, cache is still set
self.assertEqual(myclass.bar, u"fōo")
self.assertEqual(myclass.counter, 1)
self.assertDictEqual(myclass._cache, {u"hür": u"fōo"})
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