shep/tests/test_item.py

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# standard imports
import unittest
# local imports
from shep import State
from shep.error import (
StateExists,
StateItemExists,
StateInvalid,
StateItemNotFound,
)
class TestStateItems(unittest.TestCase):
def setUp(self):
self.states = State(4)
self.states.add('foo')
self.states.add('bar')
self.states.add('baz')
self.states.alias('xyzzy', self.states.BAZ | self.states.BAR)
self.states.alias('plugh', self.states.FOO | self.states.BAR)
def test_put(self):
item = b'foo'
# put in initial (no) state
self.states.put(item)
with self.assertRaises(StateItemExists):
self.states.put(item)
with self.assertRaises(StateItemExists):
self.states.put(item, self.states.BAZ)
def test_item_state(self):
item = b'foo'
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self.states.put(item, state=self.states.XYZZY)
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self.assertEqual(self.states.state(item), self.states.XYZZY)
def test_item_move(self):
item = b'foo'
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self.states.put(item, state=self.states.FOO)
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self.states.move(item, self.states.BAR)
self.assertEqual(self.states.state(item), self.states.BAR)
def test_item_move_from_alias(self):
item = b'foo'
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self.states.put(item, state=self.states.FOO)
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self.states.move(item, self.states.XYZZY)
self.assertEqual(self.states.state(item), self.states.XYZZY)
self.states.move(item, self.states.BAR)
self.assertEqual(self.states.state(item), self.states.BAR)
def test_item_move_from_new(self):
item = b'foo'
self.states.put(item)
self.assertEqual(self.states.state(item), self.states.NEW)
self.states.move(item, self.states.XYZZY)
self.assertEqual(self.states.state(item), self.states.XYZZY)
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def test_item_get(self):
item = b'foo'
self.states.put(item, state=self.states.BAZ, contents='bar')
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self.assertEqual(self.states.state(item), self.states.BAZ)
v = self.states.get(item)
self.assertEqual(v, 'bar')
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def test_item_set(self):
item = b'foo'
self.states.put(item, state=self.states.FOO)
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self.states.set(item, self.states.BAR)
self.assertEqual(self.states.state(item), self.states.PLUGH)
def test_item_set_invalid(self):
item = b'foo'
self.states.put(item, state=self.states.FOO)
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with self.assertRaises(StateInvalid):
self.states.set(item, self.states.BAZ)
item = b'bar'
self.states.put(item, state=self.states.BAR)
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with self.assertRaises(ValueError):
self.states.set(item, self.states.XYZZY)
def test_item_set_invalid(self):
item = b'foo'
self.states.put(item, state=self.states.XYZZY)
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self.states.unset(item, self.states.BAZ)
self.assertEqual(self.states.state(item), self.states.BAR)
item = b'bar'
self.states.put(item, self.states.XYZZY)
with self.assertRaises(ValueError):
self.states.unset(item, self.states.PLUGH)
with self.assertRaises(ValueError):
self.states.unset(item, self.states.FOO) # bit not set
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if __name__ == '__main__':
unittest.main()