def test_expiry(self): fifo = CircularFifo(3) assert None == fifo.append(1) assert None == fifo.append(2) assert None == fifo.append(3) for i in range(4, 10): assert i - 3 == fifo.append(i)
def test_expiry(self): fifo = CircularFifo(3) assert None == fifo.append(1) assert None == fifo.append(2) assert None == fifo.append(3) for i in range(4, 10): assert i - 3 == fifo.append(i)
def test_pop(self): fifo = CircularFifo(3) for i in range(1, 3): for j in range(i): assert None == fifo.append(j) for j in range(i): popped = fifo.pop() assert j == popped, "{0} {1} {2}".format(i, j, popped) for i in range(4): fifo.append(i) assert 1 == fifo.pop()
def test_pop(self): fifo = CircularFifo(3) for i in range(1, 3): for j in range(i): assert None == fifo.append(j) for j in range(i): popped = fifo.pop() assert j == popped, '{0} {1} {2}'.format(i, j, popped) for i in range(4): fifo.append(i) assert 1 == fifo.pop()
def test_list(self): fifo = CircularFifo(3) for i in range(7): fifo.append(i) assert [4, 5, 6] == list(fifo) fifo.append(7) assert [5, 6, 7] == list(fifo) fifo.append(8) assert [6, 7, 8] == list(fifo) fifo.append(9) assert [7, 8, 9] == list(fifo)
def test_list(self): fifo = CircularFifo(3) for i in range(7): fifo.append(i) assert [4, 5, 6] == list(fifo) fifo.append(7) assert [5, 6, 7] == list(fifo) fifo.append(8) assert [6, 7, 8] == list(fifo) fifo.append(9) assert [7, 8, 9] == list(fifo)
class _RecordDeepest(_TraceStack): ''' A logger (implemented as a monitor - `MonitorInterface`) that records the deepest match found during a parse. ''' def __init__(self, n_before=6, n_results_after=2, n_done_after=2): super(_RecordDeepest, self).__init__(enabled=True) self.n_before = n_before self.n_results_after = n_results_after self.n_done_after = n_done_after self._limited = CircularFifo(n_before) self._before = [] self._results_after = [] self._done_after = [] self._deepest = -1e99 self._countdown_result = 0 self._countdown_done = 0 def _log_result(self, value, text): ''' Modify `TraceStack` to record the data. ''' if type(value) is tuple: self.record(True, text) def _log_error(self, text): ''' Modify `TraceStack` to record the data. ''' self.record(True, text) def _log_done(self, text): ''' Modify `TraceStack` to record the data. ''' self.record(False, text) def record(self, is_result, text): ''' Record the data. ''' try: stream = self.generator.stream try: depth = s_delta(stream)[0] except AttributeError: # no .depth() depth = -1 if depth >= self._deepest and is_result: self._deepest = depth self._countdown_result = self.n_results_after self._countdown_done = self.n_done_after self._before = list(self._limited) self._results_after = [] self._done_after = [] elif is_result and self._countdown_result: self._countdown_result -= 1 self._results_after.append(text) elif not is_result and self._countdown_done: self._countdown_done -= 1 self._done_after.append(text) self._limited.append(text) except StopIteration: # end of iterator stream pass def yield_(self, value): ''' Display the result and reset. ''' self._deepest = 0 self._limited.clear() self.__display() def raise_(self, value): ''' Display the result and reset. ''' self._deepest = 0 self._limited.clear() self.__display() def __display(self): ''' Display the result. ''' self._info(self.__fmt()) def __fmt(self): ''' fmt the result. ''' return fmt( '\nUp to {0} matches before and including longest match:\n{1}\n' 'Up to {2} failures following longest match:\n{3}\n' 'Up to {4} successful matches following longest match:\n{5}\n', self.n_before, '\n'.join(self._before), self.n_done_after, '\n'.join(self._done_after), self.n_results_after, '\n'.join(self._results_after))
class _RecordDeepest(_TraceStack): ''' A logger (implemented as a monitor - `MonitorInterface`) that records the deepest match found during a parse. ''' def __init__(self, n_before=6, n_results_after=2, n_done_after=2): super(_RecordDeepest, self).__init__(enabled=True) self.n_before = n_before self.n_results_after = n_results_after self.n_done_after = n_done_after self._limited = CircularFifo(n_before) self._before = [] self._results_after = [] self._done_after = [] self._deepest = -1e99 self._countdown_result = 0 self._countdown_done = 0 def _log_result(self, value, text): ''' Modify `TraceStack` to record the data. ''' if type(value) is tuple: self.record(True, text) def _log_error(self, text): ''' Modify `TraceStack` to record the data. ''' self.record(True, text) def _log_done(self, text): ''' Modify `TraceStack` to record the data. ''' self.record(False, text) def record(self, is_result, text): ''' Record the data. ''' try: stream = self.generator.stream try: depth = s_delta(stream)[0] except AttributeError: # no .depth() depth = -1 if depth >= self._deepest and is_result: self._deepest = depth self._countdown_result = self.n_results_after self._countdown_done = self.n_done_after self._before = list(self._limited) self._results_after = [] self._done_after = [] elif is_result and self._countdown_result: self._countdown_result -= 1 self._results_after.append(text) elif not is_result and self._countdown_done: self._countdown_done -= 1 self._done_after.append(text) self._limited.append(text) except StopIteration: # end of iterator stream pass def yield_(self, value): ''' Display the result and reset. ''' self._deepest = 0 self._limited.clear() self.__display() def raise_(self, value): ''' Display the result and reset. ''' self._deepest = 0 self._limited.clear() self.__display() def __display(self): ''' Display the result. ''' self._info(self.__fmt()) def __fmt(self): ''' fmt the result. ''' return fmt( '\nUp to {0} matches before and including longest match:\n{1}\n' 'Up to {2} failures following longest match:\n{3}\n' 'Up to {4} successful matches following longest match:\n{5}\n', self.n_before, '\n'.join(self._before), self.n_done_after, '\n'.join(self._done_after), self.n_results_after, '\n'.join(self._results_after))