def setUp(self):
code = "from enthought.block_canvas.debug.my_operator import add\n"\
"c = add(a,b)"
self.block = Block(code)
# Context setup
self.context = MultiContext(DataContext(name='Data'), {})
self.context['a'] = 1
self.context['b'] = 2
class StochasticInteractorTestCase(unittest.TestCase):
""" Unit testing for StochasticInteractor
"""
def setUp(self):
code = "from enthought.block_canvas.debug.my_operator import add\n"\
"c = add(a,b)"
self.block = Block(code)
# Context setup
self.context = MultiContext(DataContext(name='Data'), {})
self.context['a'] = 1
self.context['b'] = 2
def test_attributes(self):
""" Test if creation of attributes is working correctly.
"""
interactor = StochasticInteractor(context = self.context,
block = self.block,
distribution = 'constant',
inputs = ['b'])
self.assertTrue(hasattr(interactor, interactor._input_prefix + 'b'))
# Check if the attribute is correct
attribute_b = getattr(interactor, interactor._input_prefix + 'b')
distribution_b = attribute_b.distribution
self.assertEqual(distribution_b.value, self.context['b'])
desired = self.context['b']*numpy.ones(attribute_b.samples)
self.assertTrue((desired == distribution_b.values).all())
def test_create_shadows(self):
""" Test if shadows are working correctly.
"""
raise nose.SkipTest("shadows not implemented")
interactor = StochasticInteractor(context = self.context,
block = self.block,
distribution = 'uniform',
inputs = ['b'])
# Change attributes
attribute_b = getattr(interactor, interactor._input_prefix+'b')
distribution_b = attribute_b.distribution
distribution_b.low = 20.0
distribution_b.high = 30.0
# Create shadows
interactor._execute_button_changed()
# Check if the shadows were created correctly.
self.assertEqual(len(distribution_b.values), len(self.context.shadows))
# Check if the shadow context gives desired effects.
self.block.execute(self.context.shadows[-1])
self.assertEqual(self.context.shadows[-1]['c'],
self.context['a']+self.context.shadows[-1]['b'])
