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#! /usr/bin/env python
# $Id: test_statemachine.py 7463 2012-06-22 19:49:51Z milde $
# Author: David Goodger <goodger@python.org>
# Copyright: This module has been placed in the public domain.
"""
Test module for statemachine.py.
"""
import unittest
import sys
import re
from DocutilsTestSupport import statemachine
debug = False
testtext = statemachine.string2lines("""\
First paragraph.
- This is a bullet list. First list item.
Second line of first para.
Second para.
block quote
- Second list item. Example::
a
literal
block
Last paragraph.""")
expected = ('StateMachine1 text1 blank1 bullet1 known_indent1 '
'StateMachine2 text2 text2 blank2 text2 blank2 indent2 '
'StateMachine3 text3 blank3 finished3 finished2 '
'bullet1 known_indent1 '
'StateMachine2 text2 blank2 literalblock2(4) finished2 '
'text1 finished1').split()
para1 = testtext[:2]
item1 = [line[2:] for line in testtext[2:9]]
item2 = [line[2:] for line in testtext[9:-1]]
lbindent = 6
literalblock = [line[lbindent:] for line in testtext[11:-1]]
para2 = testtext[-1]
class MockState(statemachine.StateWS):
patterns = {'bullet': re.compile(r'- '),
'text': ''}
initial_transitions = ['bullet', ['text']]
levelholder = [0]
def bof(self, context):
self.levelholder[0] += 1
self.level = self.levelholder[0]
if self.debug: print >>sys.stderr, 'StateMachine%s' % self.level
return [], ['StateMachine%s' % self.level]
def blank(self, match, context, next_state):
result = ['blank%s' % self.level]
if self.debug: print >>sys.stderr, 'blank%s' % self.level
if context and context[-1] and context[-1][-2:] == '::':
result.extend(self.literalblock())
return [], None, result
def indent(self, match, context, next_state):
if self.debug: print >>sys.stderr, 'indent%s' % self.level
context, next_state, result = statemachine.StateWS.indent(
self, match, context, next_state)
return context, next_state, ['indent%s' % self.level] + result
def known_indent(self, match, context, next_state):
if self.debug: print >>sys.stderr, 'known_indent%s' % self.level
context, next_state, result = statemachine.StateWS.known_indent(
self, match, context, next_state)
return context, next_state, ['known_indent%s' % self.level] + result
def bullet(self, match, context, next_state):
if self.debug: print >>sys.stderr, 'bullet%s' % self.level
context, next_state, result \
= self.known_indent(match, context, next_state)
return [], next_state, ['bullet%s' % self.level] + result
def text(self, match, context, next_state):
if self.debug: print >>sys.stderr, 'text%s' % self.level
return [match.string], next_state, ['text%s' % self.level]
def literalblock(self):
indented, indent, offset, good = self.state_machine.get_indented()
if self.debug: print >>sys.stderr, 'literalblock%s(%s)' % (self.level,
indent)
return ['literalblock%s(%s)' % (self.level, indent)]
def eof(self, context):
self.levelholder[0] -= 1
if self.debug: print >>sys.stderr, 'finished%s' % self.level
return ['finished%s' % self.level]
class EmptySMTests(unittest.TestCase):
def setUp(self):
self.sm = statemachine.StateMachine(
state_classes=[], initial_state='State')
self.sm.debug = debug
def test_add_state(self):
self.sm.add_state(statemachine.State)
self.assertTrue(len(self.sm.states) == 1)
self.assertRaises(statemachine.DuplicateStateError, self.sm.add_state,
statemachine.State)
self.sm.add_state(statemachine.StateWS)
self.assertTrue(len(self.sm.states) == 2)
def test_add_states(self):
self.sm.add_states((statemachine.State, statemachine.StateWS))
self.assertEqual(len(self.sm.states), 2)
def test_get_state(self):
self.assertRaises(statemachine.UnknownStateError, self.sm.get_state)
self.sm.add_states((statemachine.State, statemachine.StateWS))
self.assertRaises(statemachine.UnknownStateError, self.sm.get_state,
'unknownState')
self.assertTrue(isinstance(self.sm.get_state('State'),
statemachine.State))
self.assertTrue(isinstance(self.sm.get_state('StateWS'),
statemachine.State))
self.assertEqual(self.sm.current_state, 'StateWS')
class EmptySMWSTests(EmptySMTests):
def setUp(self):
self.sm = statemachine.StateMachineWS(
state_classes=[], initial_state='State')
self.sm.debug = debug
class SMWSTests(unittest.TestCase):
def setUp(self):
self.sm = statemachine.StateMachineWS([MockState], 'MockState',
debug=debug)
self.sm.debug = debug
self.sm.states['MockState'].levelholder[0] = 0
def tearDown(self):
self.sm.unlink()
def test___init__(self):
self.assertEqual(self.sm.states.keys(), ['MockState'])
self.assertEqual(len(self.sm.states['MockState'].transitions), 4)
def test_get_indented(self):
self.sm.input_lines = statemachine.StringList(testtext)
self.sm.line_offset = -1
self.sm.next_line(3)
indented, offset, good = self.sm.get_known_indented(2)
self.assertEqual(indented, item1)
self.assertEqual(offset, len(para1))
self.assertTrue(good)
self.sm.next_line()
indented, offset, good = self.sm.get_known_indented(2)
self.assertEqual(indented, item2)
self.assertEqual(offset, len(para1) + len(item1))
self.assertTrue(good)
self.sm.previous_line(3)
if self.sm.debug:
print '\ntest_get_indented: self.sm.line:\n', self.sm.line
indented, indent, offset, good = self.sm.get_indented()
if self.sm.debug:
print '\ntest_get_indented: indented:\n', indented
self.assertEqual(indent, lbindent)
self.assertEqual(indented, literalblock)
self.assertEqual(offset, (len(para1) + len(item1) + len(item2)
- len(literalblock)))
self.assertTrue(good)
def test_get_text_block(self):
self.sm.input_lines = statemachine.StringList(testtext)
self.sm.line_offset = -1
self.sm.next_line()
textblock = self.sm.get_text_block()
self.assertEqual(textblock, testtext[:1])
self.sm.next_line(2)
textblock = self.sm.get_text_block()
self.assertEqual(textblock, testtext[2:4])
def test_get_text_block_flush_left(self):
self.sm.input_lines = statemachine.StringList(testtext)
self.sm.line_offset = -1
self.sm.next_line()
textblock = self.sm.get_text_block(flush_left=1)
self.assertEqual(textblock, testtext[:1])
self.sm.next_line(2)
self.assertRaises(statemachine.UnexpectedIndentationError,
self.sm.get_text_block, flush_left=1)
def test_run(self):
self.assertEqual(self.sm.run(testtext), expected)
class EmptyClass:
pass
class EmptyStateTests(unittest.TestCase):
def setUp(self):
self.state = statemachine.State(EmptyClass(), debug=debug)
self.state.patterns = {'nop': 'dummy',
'nop2': 'dummy',
'nop3': 'dummy',
'bogus': 'dummy'}
self.state.nop2 = self.state.nop3 = self.state.nop
def test_add_transitions(self):
self.assertEqual(len(self.state.transitions), 0)
self.state.add_transitions(['None'], {'None': None})
self.assertEqual(len(self.state.transitions), 1)
self.assertRaises(statemachine.UnknownTransitionError,
self.state.add_transitions, ['bogus'], {})
self.assertRaises(statemachine.DuplicateTransitionError,
self.state.add_transitions, ['None'],
{'None': None})
def test_add_transition(self):
self.assertEqual(len(self.state.transitions), 0)
self.state.add_transition('None', None)
self.assertEqual(len(self.state.transitions), 1)
self.assertRaises(statemachine.DuplicateTransitionError,
self.state.add_transition, 'None', None)
def test_remove_transition(self):
self.assertEqual(len(self.state.transitions), 0)
self.state.add_transition('None', None)
self.assertEqual(len(self.state.transitions), 1)
self.state.remove_transition('None')
self.assertEqual(len(self.state.transitions), 0)
self.assertRaises(statemachine.UnknownTransitionError,
self.state.remove_transition, 'None')
def test_make_transition(self):
dummy = re.compile('dummy')
self.assertEqual(self.state.make_transition('nop', 'bogus'),
(dummy, self.state.nop, 'bogus'))
self.assertEqual(self.state.make_transition('nop'),
(dummy, self.state.nop,
self.state.__class__.__name__))
self.assertRaises(statemachine.TransitionPatternNotFound,
self.state.make_transition, 'None')
self.assertRaises(statemachine.TransitionMethodNotFound,
self.state.make_transition, 'bogus')
def test_make_transitions(self):
dummy = re.compile('dummy')
self.assertEqual(self.state.make_transitions(('nop', ['nop2'],
('nop3', 'bogus'))),
(['nop', 'nop2', 'nop3'],
{'nop': (dummy, self.state.nop,
self.state.__class__.__name__),
'nop2': (dummy, self.state.nop2,
self.state.__class__.__name__),
'nop3': (dummy, self.state.nop3, 'bogus')}))
class MiscTests(unittest.TestCase):
s2l_string = "hello\tthere\thow are\tyou?\n\tI'm fine\tthanks.\n"
s2l_expected = ['hello there how are you?',
" I'm fine thanks."]
def test_string2lines(self):
self.assertEqual(statemachine.string2lines(self.s2l_string),
self.s2l_expected)
if __name__ == '__main__':
unittest.main()
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