def test_c_to_python_and_back(Class):
""" checks module object can be changed and subclassed from C """
import gc
from nose.tools import assert_is, assert_is_not, assert_equal
from numpy.testing import assert_allclose, assert_equal as np_assert_equal
from numpy import all, abs
from pylada.crystal.cppwrappers import Atom
from pylada.crystal.tests.atom_self import get_static_object, set_static_object, _atom
a = Class(0.3,0.1,0.2, 'Au')
set_static_object(a)
c = get_static_object();
assert_is(c, a)
assert_is(c.__class__, Class)
assert_allclose(a.pos, [0.3, 0.1, 0.2])
assert_equal(a.type, 'Au')
# checks same as above but with deletion.
a = Class(0.4,0.1,0.2, 'Au', 'Pd', m=5)
set_static_object(a)
del a; del c; gc.collect()
c = get_static_object();
assert_is(c.__class__, Class)
assert_allclose(c.pos, [0.4, 0.1, 0.2])
np_assert_equal(c.type, ['Au', 'Pd'])
assert_equal(c.__dict__, {'m': 5})
def test_c_object_to_python():
from nose.tools import assert_is
from pylada.crystal.tests.atom_self import get_static_object, _atom
# checks the static object is an Atom at start.
a = get_static_object();
assert_is(a.__class__, Atom)
assert_is(a, _atom)
# checks the static object is always itself.
b = get_static_object();
assert_is(a, b)
assert_is(b, _atom)
