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_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_load_nonexisting_noraise(self):
"""Test loading a state that does not exist with error flag True
"""
temp = tempfile.NamedTemporaryFile(delete=False)
os.remove(temp.name)
state.load(temp.name, lazy=False, raise_error=False)
self.assertEqual(len(state), 0)
def test_load_nonexisting_noraise(self):
"""Test loading a state that does not exist with error flag True
"""
temp = tempfile.NamedTemporaryFile(delete=False)
os.remove(temp.name)
state.load(temp.name, lazy=False, raise_error=False)
self.assertEqual(len(state), 0)
def test_lazy_really_lazy(self):
"""Test lazy loading is really lazy
"""
self._setup_basic_state()
temp = tempfile.NamedTemporaryFile(delete=False)
temp2 = tempfile.NamedTemporaryFile(delete=False)
state.save(temp.name)
# Write bogus info to state
state['list'] = 'foo'
state['values.int'] = 43
# This should only load the keys
state.load(temp.name, lazy=True)
self.assertEqual(len(state.keys()), 3)
# This should raise an error
shutil.move(temp.name, temp2.name)
self.assertRaises(IOError, state.__getitem__, 'list')
shutil.copyfile(temp2.name, temp.name)
# Now it should work
list_val = state['list']
self.assertEqual(self.list_val, list_val)
# This should raise another error
shutil.move(temp.name, temp2.name)
self.assertRaises(IOError, state.__getitem__, 'values.int')
shutil.copyfile(temp2.name, temp.name)
# This should work again
int_val = state['values.int']
self.assertEqual(self.int_val, int_val)
os.remove(temp.name)
os.remove(temp2.name)
def test_lazy_really_lazy(self):
"""Test lazy loading is really lazy
"""
self._setup_basic_state()
temp = tempfile.NamedTemporaryFile(delete=False)
temp2 = tempfile.NamedTemporaryFile(delete=False)
state.save(temp.name)
# Write bogus info to state
state['list'] = 'foo'
state['values.int'] = 43
# This should only load the keys
state.load(temp.name, lazy=True)
self.assertEqual(len(state.keys()), 3)
# This should raise an error
shutil.move(temp.name, temp2.name)
self.assertRaises(IOError, state.__getitem__, 'list')
shutil.copyfile(temp2.name, temp.name)
# Now it should work
list_val = state['list']
self.assertEqual(self.list_val, list_val)
# This should raise another error
shutil.move(temp.name, temp2.name)
self.assertRaises(IOError, state.__getitem__, 'values.int')
shutil.copyfile(temp2.name, temp.name)
# This should work again
int_val = state['values.int']
self.assertEqual(self.int_val, int_val)
os.remove(temp.name)
os.remove(temp2.name)
def test_load_nonexist_lazy_noraise(self):
"""Test loading a state that does not exist with error flag default
"""
temp = tempfile.NamedTemporaryFile(delete=False)
os.remove(temp.name)
state.load(temp.name, lazy=True, raise_error=False)
self.assertNotIn('foo', state)
def test_load_nonexist_lazy_noraise(self):
"""Test loading a state that does not exist with error flag default
"""
temp = tempfile.NamedTemporaryFile(delete=False)
os.remove(temp.name)
state.load(temp.name, lazy=True, raise_error=False)
self.assertNotIn('foo', state)
def test_load_broken(self):
"""Test loading a broken state lazily
"""
state['a'] = 12
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.load(temp.name)
state.get_instance().filename = None
self.assertRaises(RuntimeError, lambda: state['a'])
def test_load_broken(self):
"""Test loading a broken state lazily
"""
state['a'] = 12
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state.load(temp.name)
state.get_instance().filename = None
self.assertRaises(RuntimeError, lambda: state['a'])
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_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_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_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_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_with_block_does_not_save(self):
"""Test the basic with-block of the StateHandler does not save 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):
state['a'] = 42
state.reset_instance()
state.load(temp.name)
self.assertEqual(state['a'], 1)
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_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_with_block_does_not_save(self):
"""Test the basic with-block of the StateHandler does not save 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):
state['a'] = 42
state.reset_instance()
state.load(temp.name)
self.assertEqual(state['a'], 1)
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_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_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_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_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_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_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 show_state(*arguments):
"""Shows the contents of the state loaded by the configuration or from
the file specified as an argument.
"""
if len(arguments) == 0:
state_file = conf['pyexperiment.state_filename']
else:
state_file = arguments[0]
print_bold("Load state from file '%s'", state_file)
try:
state.load(state_file, lazy=False, raise_error=True)
except IOError as err:
print(err)
else:
if len(state) > 0:
state.show()
else:
print("State empty")
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 show_state(*arguments):
"""Shows the contents of the state loaded by the configuration or from
the file specified as an argument.
"""
if len(arguments) == 0:
state_file = conf['pyexperiment.state_filename']
else:
state_file = arguments[0]
print_bold("Load state from file '%s'",
state_file)
try:
state.load(state_file, lazy=False, raise_error=True)
except IOError as err:
print(err)
else:
if len(state) > 0:
state.show()
else:
print("State empty")
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_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_save_load_file_lazy(self):
"""Test saving file and reloading lazily yields identical values
"""
self._setup_basic_state()
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
# Write bogus info to state
state['list'] = 'foo'
state['dict'] = 'bar'
state['values.int'] = 43
state.load(temp.name, lazy=True)
list_val = state['list']
dict_val = state['dict']
int_val = state['values.int']
self.assertEqual(self.list_val, list_val)
self.assertEqual(self.dict_val, dict_val)
self.assertEqual(self.int_val, int_val)
def test_save_load_file_lazy(self):
"""Test saving file and reloading lazily yields identical values
"""
self._setup_basic_state()
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
# Write bogus info to state
state['list'] = 'foo'
state['dict'] = 'bar'
state['values.int'] = 43
state.load(temp.name, lazy=True)
list_val = state['list']
dict_val = state['dict']
int_val = state['values.int']
self.assertEqual(self.list_val, list_val)
self.assertEqual(self.dict_val, dict_val)
self.assertEqual(self.int_val, int_val)
def test_show_lazy(self):
"""Test showing the state lazily loaded
"""
state['a.b'] = 12
buf = io.StringIO()
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state['a.b'] = 13
state.load(temp.name, lazy=True)
with stdout_redirector(buf):
state.show()
self.assertNotEqual(len(buf.getvalue()), 0)
self.assertRegexpMatches(buf.getvalue(), r"\[a\]")
self.assertRegexpMatches(buf.getvalue(), r"b")
self.assertRegexpMatches(buf.getvalue(), r"12")
if six.PY2:
self.assertNotRegexpMatches(buf.getvalue(), r"13")
elif six.PY3:
self.assertNotRegex( # pylint: disable=E1101
buf.getvalue(), r"13")
else:
raise RuntimeError("Python version not supported")
def test_show_lazy(self):
"""Test showing the state lazily loaded
"""
state['a.b'] = 12
buf = io.StringIO()
with tempfile.NamedTemporaryFile() as temp:
state.save(temp.name)
state['a.b'] = 13
state.load(temp.name, lazy=True)
with stdout_redirector(buf):
state.show()
self.assertNotEqual(len(buf.getvalue()), 0)
self.assertRegexpMatches(buf.getvalue(), r"\[a\]")
self.assertRegexpMatches(buf.getvalue(), r"b")
self.assertRegexpMatches(buf.getvalue(), r"12")
if six.PY2:
self.assertNotRegexpMatches(buf.getvalue(), r"13")
elif six.PY3:
self.assertNotRegex( # pylint: disable=E1101
buf.getvalue(), r"13")
else:
raise RuntimeError("Python version not supported")
def test_save_rollover(self):
"""Test saving file with rollover
"""
# Write some stuff to the state
state['a'] = (-1)**2
state['b'] = (-1)**3
state['c'] = 41
with tempfile.NamedTemporaryFile() as temp:
# Save original state
state.save(temp.name, rotate_n_state_files=2)
for i in range(10):
# Write bogus info to state
state['a'] = i**2
state['b'] = i**3
state['c'] = 42 + i
state.save(temp.name, rotate_n_state_files=2)
# Load last file and check contents
state.load(temp.name + ".1", lazy=True)
self.assertEqual(state['a'], (i - 1)**2)
self.assertEqual(state['b'], (i - 1)**3)
self.assertEqual(state['c'], 42 + (i - 1))
if i > 0:
# Load previous to last file and check contents
state.load(temp.name + ".2", lazy=True)
self.assertEqual(state['a'], (i - 2)**2)
self.assertEqual(state['b'], (i - 2)**3)
self.assertEqual(state['c'], 42 + (i - 2))
# Load current state and check contents
state.load(temp.name, lazy=True)
self.assertEqual(state['a'], i**2)
self.assertEqual(state['b'], i**3)
self.assertEqual(state['c'], 42 + i)
# Remove temp files
os.remove(temp.name + ".1")
os.remove(temp.name + ".2")
def test_save_rollover(self):
"""Test saving file with rollover
"""
# Write some stuff to the state
state['a'] = (-1) ** 2
state['b'] = (-1) ** 3
state['c'] = 41
with tempfile.NamedTemporaryFile() as temp:
# Save original state
state.save(temp.name, rotate_n_state_files=2)
for i in range(10):
# Write bogus info to state
state['a'] = i ** 2
state['b'] = i ** 3
state['c'] = 42 + i
state.save(temp.name, rotate_n_state_files=2)
# Load last file and check contents
state.load(temp.name + ".1", lazy=True)
self.assertEqual(state['a'], (i - 1) ** 2)
self.assertEqual(state['b'], (i - 1) ** 3)
self.assertEqual(state['c'], 42 + (i - 1))
if i > 0:
# Load previous to last file and check contents
state.load(temp.name + ".2", lazy=True)
self.assertEqual(state['a'], (i - 2) ** 2)
self.assertEqual(state['b'], (i - 2) ** 3)
self.assertEqual(state['c'], 42 + (i - 2))
# Load current state and check contents
state.load(temp.name, lazy=True)
self.assertEqual(state['a'], i ** 2)
self.assertEqual(state['b'], i ** 3)
self.assertEqual(state['c'], 42 + i)
# Remove temp files
os.remove(temp.name + ".1")
os.remove(temp.name + ".2")
def test_save_rollover_different(self):
"""Test saving file with one-file rollover and a different filename
"""
# Write some stuff to the state
state['a'] = (-1) ** 2
state['b'] = (-1) ** 3
state['c'] = 41
with tempfile.NamedTemporaryFile() as temp, \
tempfile.NamedTemporaryFile() as temp2:
# Save original state
state.save(temp2.name, rotate_n_state_files=1)
state.load(temp2.name)
state['a'] = (-1) ** 2
state.save(temp.name, rotate_n_state_files=1)
for i in range(10):
# Write bogus info to state
state['a'] = i ** 2
state['b'] = i ** 3
state['c'] = 42 + i
state.save(temp.name, rotate_n_state_files=1)
# Load last file and check contents
state.load(temp.name + ".1", lazy=True)
self.assertEqual(state['a'], (i - 1) ** 2)
self.assertEqual(state['b'], (i - 1) ** 3)
self.assertEqual(state['c'], 42 + (i - 1))
# Load current state and check contents
state.load(temp.name, lazy=True)
self.assertEqual(state['a'], i ** 2)
self.assertEqual(state['b'], i ** 3)
self.assertEqual(state['c'], 42 + i)
# Remove temp files
os.remove(temp.name + ".1")
os.remove(temp2.name + ".1")
def test_save_rollover_different(self):
"""Test saving file with one-file rollover and a different filename
"""
# Write some stuff to the state
state['a'] = (-1)**2
state['b'] = (-1)**3
state['c'] = 41
with tempfile.NamedTemporaryFile() as temp, \
tempfile.NamedTemporaryFile() as temp2:
# Save original state
state.save(temp2.name, rotate_n_state_files=1)
state.load(temp2.name)
state['a'] = (-1)**2
state.save(temp.name, rotate_n_state_files=1)
for i in range(10):
# Write bogus info to state
state['a'] = i**2
state['b'] = i**3
state['c'] = 42 + i
state.save(temp.name, rotate_n_state_files=1)
# Load last file and check contents
state.load(temp.name + ".1", lazy=True)
self.assertEqual(state['a'], (i - 1)**2)
self.assertEqual(state['b'], (i - 1)**3)
self.assertEqual(state['c'], 42 + (i - 1))
# Load current state and check contents
state.load(temp.name, lazy=True)
self.assertEqual(state['a'], i**2)
self.assertEqual(state['b'], i**3)
self.assertEqual(state['c'], 42 + i)
# Remove temp files
os.remove(temp.name + ".1")
os.remove(temp2.name + ".1")