def setUp(self): unittest.TestCase.setUp(self) # Put unit adapters on either side of a masking adapter to see if they # cooperate. Store meters in the raw context, push fathoms through the # mask, and expose feet to the outside world. self.units = units = {'in': meters, 'mid': fathom, 'out': feet} # Set up data for the contexts depth = UnitArray(linspace(0.0, 100.0, 11), units=units['in']) lith = array(['sand'] * len(depth), dtype=object) # Create the contexts self.context = AdaptedDataContext(subcontext=DataContext()) self.raw_context = self.context.subcontext # Add data (before creating the adapters) self.context.update(depth=depth, lith=lith) # (This simplifies creating UnitConversionAdapters) def always(value): class C(dict): def get(self, key, default=None): return value def __repr__(self): return '{*:%r}' % value return C() # Layer multiple adapters d = depth.view(ndarray) self.mask = (15.0 < d) & (d < 55.0) self.convert_out = lambda x: convert(x, units['in'], units['out']) self.convert_in = lambda x: convert(x, units['out'], units['in']) #self.context.push_adapter( # UnitConversionAdapter(setitem_units=always(units['in']), # getitem_units=always(units['mid']))) self.context.push_adapter(MaskingAdapter(mask=self.mask)) self.context.push_adapter( # UnitConversionAdapter(setitem_units=always(units['mid']), UnitConversionAdapter(setitem_units=always(units['in']), getitem_units=always(units['out'])))
def setUp(self): unittest.TestCase.setUp(self) # Set up data for the contexts depth = linspace(0.0, 100.0, 11) lith = array(['sand'] * len(depth), dtype=object) # Create the contexts self.context = AdaptedDataContext(subcontext=DataContext()) self.raw_context = self.context.subcontext # Add data (before creating the adapter) self.context.update(depth=depth, lith=lith) # Add an adapter self.mask = (20.0 <= depth) & (depth <= 50.0) self.adapter = MaskingAdapter(mask=self.mask) self.context.push_adapter(self.adapter)