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# Copyright (C) by Josh Blum. See LICENSE.txt for licensing information.
import unittest
import gras
import numpy
class MyBlock(gras.Block):
def __init__(self):
gras.Block.__init__(self, "MyBlock")
self.foo = 0
self.register_property("foo", self.get_foo, self.set_foo)
def work(self, *args): pass
def get_foo(self):
return self.foo
def set_foo(self, new_foo):
print "new_foo", new_foo
new_foo + 0 #throws if its not a number
self.foo = new_foo
class BlockPropsTest(unittest.TestCase):
def test_property_set_get(self):
my_block = MyBlock()
self.assertEqual(my_block.foo, 0)
my_block.set("foo", 42)
self.assertEqual(my_block.foo, 42)
my_foo = my_block.get("foo")
self.assertEqual(my_foo, 42)
def test_property_errors(self):
my_block = MyBlock()
#property does not exist
threw = False
try: my_block.get("bar")
except: threw = True
self.assertTrue(threw)
#wrong type for property
threw = False
try: my_block.set("foo", None)
except: threw = True
self.assertTrue(threw)
def test_element_tree_paths(self):
my_block = MyBlock()
tb = gras.TopBlock()
hb = gras.HierBlock()
tb.adopt_element("my_hier", hb)
hb.adopt_element("my_block", my_block)
my_block.set("foo", 42)
self.assertEqual(my_block.get("foo"), 42)
my_block0 = tb.lookup_block('/my_hier/my_block')
self.assertEqual(my_block0.get("foo"), 42)
my_block1 = hb.lookup_block('my_block')
self.assertEqual(my_block1.get("foo"), 42)
my_block2 = hb.lookup_block('./../my_hier/my_block')
self.assertEqual(my_block2.get("foo"), 42)
threw = False
try: hb.lookup_block('../../my_hier/my_block')
except: threw = True
self.assertTrue(threw)
threw = False
try: hb.lookup_block('../../my_hier/my_block0')
except: threw = True
self.assertTrue(threw)
threw = False
try: hb.lookup_block('../../my_hier/my_block/test')
except: threw = True
self.assertTrue(threw)
if __name__ == '__main__':
unittest.main()
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