def test_persists(self):
"""Test if memoization persists
"""
called = [0]
def environment(expected_calls=1):
"""Creates target function in scope, check number of calls
"""
@persistent_memoize
def target(arg):
"""Test function..."""
called[0] += 1
return 2 * arg
result1 = target(1)
self.assertEqual(result1, 2)
self.assertEqual(called[0], expected_calls)
result2 = target(1)
self.assertEqual(result2, 2)
self.assertEqual(called[0], expected_calls)
environment(expected_calls=1)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
environment(expected_calls=2)
environment(expected_calls=2)
state.reset_instance()
state.load(temp.name, lazy=True)
environment(expected_calls=2)
def test_get_section_lazy(self):
"""Test getting a section of the state lazily
"""
state['a.a'] = 12
state['a.b'] = 13
state['c'] = 24
self.assertIn('a', state)
section_a = state['a']
self.assertIn('a', section_a)
self.assertIn('b', section_a)
self.assertNotIn('c', section_a)
self.assertEqual(section_a['a'], 12)
self.assertEqual(section_a['b'], 13)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
self.assertIn('a', state)
section_a = state['a']
self.assertIn('a', section_a)
self.assertIn('b', section_a)
self.assertNotIn('c', section_a)
self.assertEqual(section_a['a'], 12)
self.assertEqual(section_a['b'], 13)
def test_get_section_lazy(self):
"""Test getting a section of the state lazily
"""
state['a.a'] = 12
state['a.b'] = 13
state['c'] = 24
self.assertIn('a', state)
section_a = state['a']
self.assertIn('a', section_a)
self.assertIn('b', section_a)
self.assertNotIn('c', section_a)
self.assertEqual(section_a['a'], 12)
self.assertEqual(section_a['b'], 13)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
self.assertIn('a', state)
section_a = state['a']
self.assertIn('a', section_a)
self.assertIn('b', section_a)
self.assertNotIn('c', section_a)
self.assertEqual(section_a['a'], 12)
self.assertEqual(section_a['b'], 13)
def test_with_block_load_fail(self):
"""Test with-block of the StateHandler does not destroy when failing
"""
state['a'] = 123
with tempfile.NamedTemporaryFile() as temp:
state.reset_instance()
state['a'] = 12
with StateHandler(temp.name, load=True):
self.assertEqual(len(state), 1)
self.assertEqual(state['a'], 12)
def test_in_lazy(self):
"""Test checking for an attribute in a lazily loaded state
"""
self._setup_basic_state()
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('list', state)
state.load(temp.name, lazy=True)
self.assertIn('list', state)
def test_with_block_does_load(self):
"""Test the with-block of the StateHandler loads if required
"""
state['a'] = 123
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name, load=True):
self.assertEqual(len(state), 1)
self.assertEqual(state['a'], 123)
def test_with_block_does_not_load(self):
"""Test the basic with-block of the StateHandler does not load anything
"""
state['a'] = 1
self.assertEqual(len(state), 1)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name):
self.assertEqual(len(state), 0)
def test_with_block_does_not_load(self):
"""Test the basic with-block of the StateHandler does not load anything
"""
state['a'] = 1
self.assertEqual(len(state), 1)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name):
self.assertEqual(len(state), 0)
def test_in_lazy(self):
"""Test checking for an attribute in a lazily loaded state
"""
self._setup_basic_state()
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('list', state)
state.load(temp.name, lazy=True)
self.assertIn('list', state)
def test_with_block_load_fail(self):
"""Test with-block of the StateHandler does not destroy when failing
"""
state['a'] = 123
with tempfile.NamedTemporaryFile() as temp:
state.reset_instance()
state['a'] = 12
with StateHandler(temp.name, load=True):
self.assertEqual(len(state), 1)
self.assertEqual(state['a'], 12)
def test_with_block_does_load(self):
"""Test the with-block of the StateHandler loads if required
"""
state['a'] = 123
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name, load=True):
self.assertEqual(len(state), 1)
self.assertEqual(state['a'], 123)
def test_triggers_state_changed(self):
"""Test if memoization triggers state change
"""
with tempfile.NamedTemporaryFile() as temp:
cache = PersistentCache('bla')
state.save(temp.name)
state.reset_instance()
state.load(temp.name, lazy=True)
self.assertFalse(state.changed)
cache[1] = 42
self.assertTrue(state.changed)
def test_saving_loading_lazy_array(self):
"""Test saving and loading a numpy array
"""
random = np.random.rand(100)
state['random'] = random
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('random', state)
state.load(temp.name)
self.assertTrue((random == state['random']).all())
def test_saving_loading_lazy_array(self):
"""Test saving and loading a numpy array
"""
random = np.random.rand(100)
state['random'] = random
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('random', state)
state.load(temp.name)
self.assertTrue((random == state['random']).all())
def test_with_block_does_save(self):
"""Test the with-block of the StateHandler saves if required
"""
state['a'] = 1
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name, save=True):
state['a'] = 42
state.reset_instance()
state.load(temp.name)
self.assertEqual(state['a'], 42)
def test_with_block_does_save(self):
"""Test the with-block of the StateHandler saves if required
"""
state['a'] = 1
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name, save=True):
state['a'] = 42
state.reset_instance()
state.load(temp.name)
self.assertEqual(state['a'], 42)
def test_loading_list_performance(self):
"""Test loading a list and make sure it's reasonably fast
"""
random = np.random.randint(0, 255, 1024*1024).tolist()
state['random'] = random
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('random', state)
tic = datetime.now()
state.load(temp.name)
toc = datetime.now()
self.assertTrue((toc - tic).total_seconds() < 0.5)
def test_cache_persists_reset(self):
"""Test if the cache persists after resetting and reloading state
"""
cache = PersistentCache('bla')
cache[1] = 42
self.assertIn(1, cache)
self.assertEqual(cache[1], 42)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
state.load(temp.name)
self.assertIn(1, cache)
self.assertEqual(cache[1], 42)
def test_loading_numpy_performance(self):
"""Test loading a numpy array and make sure it's reasonably fast
"""
random = np.array(np.random.randint(0, 255, 1024 * 1024))
state['random'] = random
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('random', state)
tic = datetime.now()
state.load(temp.name)
toc = datetime.now()
self.assertTrue((toc - tic).total_seconds() < 0.5)
def test_with_block_show(self):
"""Test with-block of the StateHandler does not cause show to fail
"""
with tempfile.NamedTemporaryFile() as temp:
state.reset_instance()
state['a'] = 12
with StateHandler(temp.name, load=True):
self.assertEqual(len(state), 1)
self.assertEqual(state['a'], 12)
buf = io.StringIO()
with stdout_redirector(buf):
state.show()
self.assertNotEqual(len(buf.getvalue()), 0)
self.assertRegexpMatches(buf.getvalue(), r"a:12")
def test_with_block_show(self):
"""Test with-block of the StateHandler does not cause show to fail
"""
with tempfile.NamedTemporaryFile() as temp:
state.reset_instance()
state['a'] = 12
with StateHandler(temp.name, load=True):
self.assertEqual(len(state), 1)
self.assertEqual(state['a'], 12)
buf = io.StringIO()
with stdout_redirector(buf):
state.show()
self.assertNotEqual(len(buf.getvalue()), 0)
self.assertRegexpMatches(buf.getvalue(), r"a:12")
def test_get_section_lazy2(self):
"""Test getting directly a section of the state lazily
"""
state['a.b'] = 12
self.assertIn('a.b', state)
self.assertEqual(state['a.b'], 12)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
state.load(temp.name)
self.assertIn('a.b', state)
self.assertEqual(state['a.b'], 12)
def test_save_load_file_keys(self):
"""Test saving file and reloading yields identical keys
"""
state['normal_key'] = 1
state['dashed-key'] = 3
state['dotted.key'] = 4
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
state.load(temp.name, lazy=False)
# Make sure the keys are there
for key in ['normal_key', 'dashed-key', 'dotted.key']:
self.assertIn(key, state)
def test_no_unnecessary_save_lazy(self):
"""Test saving the state does not save just after loading lazily
"""
self.assertFalse(state.need_saving())
state['bla'] = 'bla'
self.assertTrue(state.need_saving())
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
self.assertFalse(state.need_saving())
state.reset_instance()
self.assertFalse(state.need_saving())
state.load(temp.name, lazy=True)
self.assertFalse(state.need_saving())
self.assertEqual(state['bla'], 'bla')
self.assertFalse(state.need_saving())
def test_get_section_lazy2(self):
"""Test getting directly a section of the state lazily
"""
state['a.b'] = 12
self.assertIn('a.b', state)
self.assertEqual(state['a.b'], 12)
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
state.load(temp.name)
self.assertIn('a.b', state)
self.assertEqual(state['a.b'], 12)
def test_no_unnecessary_save_lazy(self):
"""Test saving the state does not save just after loading lazily
"""
self.assertFalse(state.need_saving())
state['bla'] = 'bla'
self.assertTrue(state.need_saving())
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
self.assertFalse(state.need_saving())
state.reset_instance()
self.assertFalse(state.need_saving())
state.load(temp.name, lazy=True)
self.assertFalse(state.need_saving())
self.assertEqual(state['bla'], 'bla')
self.assertFalse(state.need_saving())
def test_saving_unloaded_value(self):
"""Test saving does not delete unloaded values
"""
state['a'] = 12
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
state['b'] = 12
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
self.assertNotIn('b', state)
state.load(temp.name)
self.assertIn('a', state)
self.assertIn('b', state)
def test_saving_unloaded_value(self):
"""Test saving does not delete unloaded values
"""
state['a'] = 12
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
state['b'] = 12
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
self.assertNotIn('b', state)
state.load(temp.name)
self.assertIn('a', state)
self.assertIn('b', state)
def test_save_load_file_keys(self):
"""Test saving file and reloading yields identical keys
"""
state['normal_key'] = 1
state['dashed-key'] = 3
state['dotted.key'] = 4
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
state.load(temp.name, lazy=False)
# Make sure the keys are there
for key in ['normal_key',
'dashed-key',
'dotted.key']:
self.assertIn(key, state)
def test_saving_deleted_value(self):
"""Test saving really deletes entry
"""
state['a'] = 12
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
self.assertIn('a', state)
del state['a']
self.assertNotIn('a', state)
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
self.assertNotIn('a', state)
def test_saving_deleted_value(self):
"""Test saving really deletes entry
"""
state['a'] = 12
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
self.assertIn('a', state)
del state['a']
self.assertNotIn('a', state)
state.save(temp.name)
state.reset_instance()
self.assertNotIn('a', state)
state.load(temp.name)
self.assertNotIn('a', state)
def test_saving_loading_np_array2(self):
"""Test saving and loading numpy arrays of higher dimension
"""
random1 = np.random.rand(321, 123)
random2 = np.random.randint(0, 100, (123, 345))
state['random1'] = random1
state['random2'] = random2
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('random1', state)
self.assertNotIn('random2', state)
state.load(temp.name, lazy=False)
self.assertTrue((random1 == state['random1']).all())
self.assertTrue((random2 == state['random2']).all())
self.assertEqual(state['random1'].shape, random1.shape)
self.assertEqual(state['random2'].shape, random2.shape)
self.assertEqual(state['random1'].dtype, random1.dtype)
self.assertEqual(state['random2'].dtype, random2.dtype)
def test_with_block_locks(self):
"""Test the with-block of the StateHandler locks the state
"""
state['a'] = 123
with tempfile.NamedTemporaryFile() as temp:
def other_op():
"""Function to run in another process"""
StateHandler.STATE_LOCK_TIMEOUT = 0.001
other_handler = StateHandler(temp.name, load=True)
self.assertRaises(RuntimeError, other_handler.__enter__)
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name, load=True):
process = multiprocessing.Process(target=other_op)
process.start()
process.join()
def test_with_block_locks(self):
"""Test the with-block of the StateHandler locks the state
"""
state['a'] = 123
with tempfile.NamedTemporaryFile() as temp:
def other_op():
"""Function to run in another process"""
StateHandler.STATE_LOCK_TIMEOUT = 0.001
other_handler = StateHandler(temp.name, load=True)
self.assertRaises(RuntimeError,
other_handler.__enter__)
state.save(temp.name)
state.reset_instance()
with StateHandler(temp.name, load=True):
process = multiprocessing.Process(target=other_op)
process.start()
process.join()
def test_saving_loading_np_array2(self):
"""Test saving and loading numpy arrays of higher dimension
"""
random1 = np.random.rand(321, 123)
random2 = np.random.randint(0, 100, (123, 345))
state['random1'] = random1
state['random2'] = random2
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.reset_instance()
self.assertNotIn('random1', state)
self.assertNotIn('random2', state)
state.load(temp.name, lazy=False)
self.assertTrue((random1 == state['random1']).all())
self.assertTrue((random2 == state['random2']).all())
self.assertEqual(state['random1'].shape, random1.shape)
self.assertEqual(state['random2'].shape, random2.shape)
self.assertEqual(state['random1'].dtype, random1.dtype)
self.assertEqual(state['random2'].dtype, random2.dtype)
def tearDown(self):
"""Teardown test fixture
"""
state.reset_instance()
def tearDown(self):
"""Teardown test fixture
"""
state.reset_instance()
def tearDown(self):
"""Clean up after the test
"""
state.reset_instance()
def tearDown(self):
"""Clean up after the test
"""
state.reset_instance()
