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)
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)
class MaskingAdapterTestCase(unittest.TestCase):
###########################################################################
# TestCase interface
###########################################################################
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)
def tearDown(self):
unittest.TestCase.tearDown(self)
###########################################################################
# MaskingAdapterTestCase interface
###########################################################################
def test_getitem(self):
""" Does adapter mask values correctly?
"""
name, value = self.adapter.adapt_getitem(self.raw_context, 'depth',
self.raw_context['depth'])
self.assertEqual(len(value), 4)
self.assertTrue(all(value==(20.0, 30.0, 40.0, 50.0)))
def test_setitem_existing_value(self):
""" Does setitem on existing data only change the masked values?
"""
new_values = (30.0, 40.0, 50.0, 60.0)
desired = self.raw_context['depth'].copy()
desired[self.mask] = new_values
name, value = self.adapter.adapt_setitem(self.raw_context, 'depth',
new_values)
self.assertEqual(len(value), 11)
self.assertTrue(all(value==desired))
def test_setitem_non_existing_value(self):
""" Does setitem on non-existing data expand to depth's shape?
"""
new_values = (30.0, 40.0, 50.0, 60.0)
desired = self.raw_context['depth'].copy()
desired[self.mask] = new_values
desired[~self.mask] = nan
name, value = self.adapter.adapt_setitem(self.raw_context, 'foo',
new_values)
self.assertEqual(len(value), len(desired))
self.assertTrue(all((value==desired) | (isnan(value)==isnan(desired))))
def test_context_getitem(self):
""" Are the returned values from context masked correctly?
"""
depth = self.context['depth']
self.assertEqual(len(depth), 4)
self.assertTrue(all(depth==(20.0, 30.0, 40.0, 50.0)))
def test_context_setitem_existing(self):
""" Are the returned values from context masked correctly?
"""
new_values = (30.0, 40.0, 50.0, 60.0)
self.context['depth'] = new_values
# Grab the values from the underlying context, skipping the mask.
depth = self.raw_context['depth']
desired = self.raw_context['depth'].copy()
desired[self.mask] = new_values
self.assertTrue(all(depth==desired))
class MaskingAdapterTestCase(unittest.TestCase):
###########################################################################
# TestCase interface
###########################################################################
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)
def tearDown(self):
unittest.TestCase.tearDown(self)
###########################################################################
# MaskingAdapterTestCase interface
###########################################################################
def test_getitem(self):
""" Does adapter mask values correctly?
"""
name, value = self.adapter.adapt_getitem(self.raw_context, 'depth',
self.raw_context['depth'])
self.assertEqual(len(value), 4)
self.assertTrue(all(value == (20.0, 30.0, 40.0, 50.0)))
def test_setitem_existing_value(self):
""" Does setitem on existing data only change the masked values?
"""
new_values = (30.0, 40.0, 50.0, 60.0)
desired = self.raw_context['depth'].copy()
desired[self.mask] = new_values
name, value = self.adapter.adapt_setitem(self.raw_context, 'depth',
new_values)
self.assertEqual(len(value), 11)
self.assertTrue(all(value == desired))
def test_setitem_non_existing_value(self):
""" Does setitem on non-existing data expand to depth's shape?
"""
new_values = (30.0, 40.0, 50.0, 60.0)
desired = self.raw_context['depth'].copy()
desired[self.mask] = new_values
desired[~self.mask] = nan
name, value = self.adapter.adapt_setitem(self.raw_context, 'foo',
new_values)
self.assertEqual(len(value), len(desired))
self.assertTrue(
all((value == desired) | (isnan(value) == isnan(desired))))
def test_context_getitem(self):
""" Are the returned values from context masked correctly?
"""
depth = self.context['depth']
self.assertEqual(len(depth), 4)
self.assertTrue(all(depth == (20.0, 30.0, 40.0, 50.0)))
def test_context_setitem_existing(self):
""" Are the returned values from context masked correctly?
"""
new_values = (30.0, 40.0, 50.0, 60.0)
self.context['depth'] = new_values
# Grab the values from the underlying context, skipping the mask.
depth = self.raw_context['depth']
desired = self.raw_context['depth'].copy()
desired[self.mask] = new_values
self.assertTrue(all(depth == desired))