def test_bound_inputs(self):
code = "c = a * b\n" \
"x = 3 + c\n"
block = Block(code)
context = DataContext()
context['a'] = 1
context['b'] = 2
sub_block = block.restrict(inputs=('c'))
self.assertEqual(sub_block.inputs, set(['c']))
def test_simple_output_reduction(self):
code = 'from enthought.block_canvas.debug.my_operator import add, mul\n' \
'c = add(a,b)\n' \
'd = mul(a,16)\n'
block = Block(code)
context = DataContext()
context['a'] = 1
context['b'] = 2
sub_block = block.restrict(outputs=('d'))
self.assertEqual(sub_block.inputs, set(['a']))
sub_block.execute(context)
self.assertTrue(context.has_key('d'))
self.assertEqual(context['d'], 16)
def test_unbound_inputs(self):
code = 'from enthought.block_canvas.debug.my_operator import add, mul\n' \
"c = add(a,b)\n" \
"d = mul(c,a)\n" \
"z = add(b, 2)"
block = Block(code)
context = DataContext()
context['a'] = 2
context['b'] = 1
sub_block = block.restrict(inputs=('a'))
self.assertEqual(sub_block.inputs, set(['a', 'b']))
self.assertEqual(sub_block.outputs, set(['c', 'd', 'add', 'mul']))
sub_block.execute(context)
self.assertTrue(context.has_key('c'))
self.assertEqual(context['c'], 3)
self.assertTrue(context.has_key('d'))
self.assertEqual(context['d'], 6)