def test_empty(self):
ds = GridDataSource()
self.assert_(ds.sort_order == ('none', 'none'))
self.assert_(ds.index_dimension == 'image')
self.assert_(ds.value_dimension == 'scalar')
self.assert_(ds.metadata == {"selections":[], "annotations":[]})
xdata, ydata = ds.get_data()
assert_ary_(xdata.get_data(), array([]))
assert_ary_(ydata.get_data(), array([]))
self.assert_(ds.get_bounds() == ((0,0),(0,0)))
def test_init(self):
test_xd = array([1,2,3])
test_yd = array([1.5, 0.5, -0.5, -1.5])
test_sort_order = ('ascending', 'descending')
ds = GridDataSource(xdata=test_xd, ydata=test_yd,
sort_order=test_sort_order)
self.assert_(ds.sort_order == test_sort_order)
xd, yd = ds.get_data()
assert_ary_(xd.get_data(), test_xd)
assert_ary_(yd.get_data(), test_yd)
self.assert_(ds.get_bounds() == ((min(test_xd),min(test_yd)),
(max(test_xd),max(test_yd))))
