def test_step(self):
command_queue = []
available_first_moves = []
solver = Solver(self.puzzle)
for (row, col) in Board.SUDOKU_CELLS:
candidates = solver.candidates(row, col)
if len(candidates) == 1 and self.puzzle.get_cell(
row, col) == Board.BLANK:
# Solver uses zero-indexed locations, so correct
available_first_moves.append(
(row + 1, col + 1, candidates.pop()))
command_queue.append('# test `step` variants')
for i, (row, col, num) in enumerate(available_first_moves[:2]):
command_queue.append('# try to deduce {} at ({}, {})'.format(
num, row, col))
box, _ = Board.box_containing_cell(row - 1, col - 1)
box += 1
# Alternate the command variation used each iteration
command_queue.append('{} {}'.format(self.STEPR_CMDS[i % 2], row))
command_queue.append(self.UNSTEP_CMD)
command_queue.append('{} {}'.format(self.STEPC_CMDS[i % 2], col))
command_queue.append(self.UNSTEP_CMD)
command_queue.append('{} {}'.format(self.STEPB_CMDS[i % 2], box))
command_queue.append(self.UNSTEP_CMD)
command_queue.append('# set {} at ({}, {}) manually'.format(
num, row, col))
command_queue.append('{} {} {} {}'.format(self.STEPM_CMDS[i % 2],
row, col, num))
command_queue.append(self.UNSTEP_CMD)
command_queue.append('# using `stepm` ROW COL NUM alias')
command_queue.append('{1}{0}{2}{0}{3}'.format(
' ' * (i % 2), row, col, num))
command_queue.append(self.UNSTEP_CMD)
command_queue.append('# test breaking on `step`s')
for step_cmd, row, col in self.FIRST_MOVES:
command_queue.append('{} {} {}'.format(self.BREAK_CMD, row, col))
command_queue.append(step_cmd)
command_queue.append('# breakpoint at ({}, {})'.format(row, col))
command_queue.append(self.UNSTEP_CMD)
command_queue.append(self.DELETE_CMD)
command_queue.append('# test repeating `step`s')
command_queue.append('{} 2'.format(self.STEP_CMDS[0]))
command_queue.append('{} 12'.format(self.STEPR_CMDS[0]))
command_queue.append('{} 12'.format(self.STEPC_CMDS[0]))
command_queue.append('{} 12'.format(self.STEPB_CMDS[0]))
command_queue.append('{} 8'.format(self.UNSTEP_CMD))
command_queue.append(
'# test passing bad arguments to various commands')
command_queue.append('# No steps left to undo')
command_queue.append('{} 82'.format(self.UNSTEP_CMD))
command_queue.append('# Must be integer')
command_queue.append('{} x'.format(self.STEP_CMDS[0]))
command_queue.append('{} x'.format(self.UNSTEP_CMD))
command_queue.append('{} 1 x'.format(self.STEPR_CMDS[0]))
command_queue.append('{} 1 x'.format(self.STEPC_CMDS[0]))
command_queue.append('{} 1 x'.format(self.STEPB_CMDS[0]))
command_queue.append('{} x x x'.format(self.STEPM_CMDS[0]))
command_queue.append('# Invalid row')
command_queue.append('{} 0 1 1'.format(self.STEPM_CMDS[0]))
command_queue.append('{} 0'.format(self.STEPR_CMDS[0]))
command_queue.append('# Invalid column')
command_queue.append('{} 1 0 1'.format(self.STEPM_CMDS[0]))
command_queue.append('{} 0'.format(self.STEPC_CMDS[0]))
command_queue.append('# Invalid box')
command_queue.append('{} 0'.format(self.STEPB_CMDS[0]))
command_queue.append('# Argument required')
command_queue.append(self.STEPR_CMDS[0])
command_queue.append(self.STEPC_CMDS[0])
command_queue.append(self.STEPB_CMDS[0])
command_queue.append('# Exactly three arguments required')
command_queue.append('{}'.format(self.STEPM_CMDS[0]))
command_queue.append('{} 1'.format(self.STEPM_CMDS[0]))
command_queue.append('{} 1 1'.format(self.STEPM_CMDS[0]))
command_queue.append('# Inconsistent move')
command_queue.append(self.INCONSISTENT_MOVE)
# Tell controller to exit
command_queue.append('quit')
# Run commands
controller = SolverController(self.puzzle,
command_queue=command_queue,
options=self.options)
self.redirect_output()
controller.solve()
self.reset_output()
if self.compare_file is None:
return
self.output_file.seek(0)
output_lines = self.output_file.read().splitlines()
compare_lines = self.compare_file.read().splitlines()
self.assertEqual(output_lines, compare_lines)
def test_set(self):
temp_solver = Solver(self.puzzle.duplicate())
move1_row, move1_col = temp_solver.step()
move1_box, _ = Board.box_containing_cell(move1_row, move1_col)
move1_num = temp_solver.puzzle.get_cell(move1_row, move1_col)
# Adjust zero-indexed locations returned by `temp_solver`
move1_row += 1
move1_col += 1
move1_box += 1
command_queue = []
command_queue.append('# test `set` with no subcommand')
command_queue.append(self.SET_CMD)
command_queue.append('# test `set ascii`')
command_queue.append('{} ascii # turn on'.format(self.SET_CMD))
command_queue.append('print')
command_queue.append('{} ascii # turn off'.format(self.SET_CMD))
command_queue.append('print')
command_queue.append('# test `set guessbreak`')
command_queue.append(
'step {} # right before guess'.format(self.MOVE_OF_FIRST_GUESS -
1))
command_queue.append('check move_before_guess')
command_queue.append('step 2')
command_queue.append('restart move_before_guess')
command_queue.append('{} guessbreak # turn on'.format(self.SET_CMD))
command_queue.append('step 2')
command_queue.append('restart')
command_queue.append('{} guessbreak # turn off'.format(self.SET_CMD))
command_queue.append('# test `set explainsteps`')
command_queue.append('{} explainsteps # turn on'.format(self.SET_CMD))
command_queue.append(
'# make sure explanation is printed for `step`/`stepm`')
command_queue.append('step')
command_queue.append('stepm {} {} {}'.format(move1_row, move1_col,
move1_num))
command_queue.append('unstep 2')
command_queue.append(
'# make sure explanation is printed for other `step` variants')
command_queue.append('stepr {}'.format(move1_row))
command_queue.append('unstep')
command_queue.append('stepc {}'.format(move1_col))
command_queue.append('unstep')
command_queue.append('stepb {}'.format(move1_box))
command_queue.append('unstep')
command_queue.append('# make sure explanation is printed for `finish`')
command_queue.append('break {} {} # avoid excess output'.format(
move1_row, move1_col))
command_queue.append('finish')
command_queue.append('{} explainsteps # turn off'.format(self.SET_CMD))
command_queue.append('# test `set markview`')
command_queue.append('{} markview # turn on'.format(self.SET_CMD))
command_queue.append('mark 1 1 9 # add some candidates')
command_queue.append('mark 9 9 9')
command_queue.append('step')
command_queue.append('explain')
command_queue.append('unstep')
command_queue.append('{} markview # turn off'.format(self.SET_CMD))
command_queue.append('# test `set prompt`')
command_queue.append('set prompt sudb# ')
command_queue.append('set prompt all spaces taken literally> ')
command_queue.append('# even no argument is taken literally')
command_queue.append('set prompt')
command_queue.append('# reset prompt')
command_queue.append('set prompt {}'.format(self.options.prompt))
command_queue.append('# test `set width`')
command_queue.append('{} width 80 # set wide'.format(self.SET_CMD))
command_queue.append('print marks # show wide puzzle')
command_queue.append('help step # show wide wrapped text')
command_queue.append('{} width 60 # set narrow'.format(self.SET_CMD))
command_queue.append('print marks # show narrow puzzle')
command_queue.append('{} ascii'.format(self.SET_CMD))
command_queue.append('print marks # show narrow ascii puzzle')
command_queue.append('help step # show narrow wrapped text')
command_queue.append('{} width 0 # restore default'.format(
self.SET_CMD))
command_queue.append('# test passing bad arguments')
command_queue.append('# Undefined set command')
command_queue.append('{} madeup_set_command'.format(self.SET_CMD))
command_queue.append('# Argument must be integer')
command_queue.append('{} width x'.format(self.SET_CMD))
command_queue.append('# Integer out of range')
command_queue.append('{} width -1'.format(self.SET_CMD))
command_queue.append('# One argument required')
command_queue.append('{} width'.format(self.SET_CMD))
command_queue.append('# test showing all current settings')
command_queue.append('info {} # before changes'.format(self.SET_CMD))
command_queue.append('# make changes')
command_queue.append('{} ascii'.format(self.SET_CMD))
command_queue.append('{} explainsteps'.format(self.SET_CMD))
command_queue.append('{} guessbreak'.format(self.SET_CMD))
command_queue.append('{} markview'.format(self.SET_CMD))
command_queue.append('{} prompt (test) '.format(self.SET_CMD))
command_queue.append('{} width 70'.format(self.SET_CMD))
command_queue.append('info {} # after changes'.format(self.SET_CMD))
# Tell controller to exit
command_queue.append('quit')
# Run commands
controller = SolverController(self.puzzle,
command_queue=command_queue,
options=self.options)
self.redirect_output()
controller.solve()
self.reset_output()
if self.compare_file is None:
return
self.output_file.seek(0)
output_lines = self.output_file.read().splitlines()
compare_lines = self.compare_file.read().splitlines()
self.assertEqual(output_lines, compare_lines)