def test_basic_csv_cache(self):
cache_name = self.check_cache_gone('csvcache', csv_path=True)
cache = CSVCache(cache_name, cache_manager=self.manager)
cache['foo'] = 'bar'
cache.save()
self.check_cache(cache_name, True, csv_path=True)
cache.load() # Reload
self.check_cache(cache_name, True, csv_path=True)
self.assertEqual(cache['foo'], 'bar')
cache.delete_saved_content()
self.check_cache_gone(cache_name, csv_path=True)
cache.load_or_build()
self.assert_contents_equal(cache, {})
def test_custom_row_builder_reader(self):
def tuple_key_expander(key, value):
return list(key) + [value]
def tuple_key_extractor(row):
key = tuple(row[:-1])
value = float(row[-1])
return key, value
cache_name = self.check_cache_gone('custom_builder', csv_path=True)
cache = CSVCache(cache_name, cache_manager=self.manager,
row_builder=tuple_key_expander, row_reader=tuple_key_extractor)
cache[('foo', 'bar')] = 1
cache.save()
self.check_cache(cache_name, True, csv_path=True)
cache.load() # Reload
self.check_cache(cache_name, True, csv_path=True)
self.assertEqual(cache[('foo', 'bar')], 1)