def test_newer_miss(self):
from appendonly import _Layer
klass = self._getTargetClass()
source = _Layer()
source.push(object())
copied = klass.fromLayer(source)
self.assertEqual(list(copied.newer(0)), [])
def test___iter___filled(self):
from appendonly import _Layer
klass = self._getTargetClass()
source = _Layer()
OBJ1 = object()
OBJ2 = object()
OBJ3 = object()
source.push(OBJ1)
source.push(OBJ2)
source.push(OBJ3)
copied = klass.fromLayer(source)
self.assertEqual(list(copied), [(2, OBJ3), (1, OBJ2), (0, OBJ1)])
def test_newer_hit(self):
from appendonly import _Layer
klass = self._getTargetClass()
source = _Layer()
OBJ1 = object()
OBJ2 = object()
OBJ3 = object()
source.push(OBJ1)
source.push(OBJ2)
source.push(OBJ3)
copied = klass.fromLayer(source)
self.assertEqual(list(copied.newer(0)),
[(2, OBJ3), (1, OBJ2)])
def test_fromLayer(self):
from appendonly import _Layer
klass = self._getTargetClass()
source = _Layer(max_length=42, generation=13)
for i in range(25):
obj = object()
source.push(obj)
copied = klass.fromLayer(source)
self.assertEqual(copied._max_length, 42)
self.assertEqual(copied._generation, 13)
self.assertEqual(len(copied._stack), len(source._stack))
for s_obj, c_obj in zip(source._stack, copied._stack):
self.assertTrue(s_obj is c_obj)
