def test_closed_file_not_usable(self):
filename = os.path.join(self.temp_dir, 'test.cuds')
with closing(H5CUDS.open(filename)) as handle:
handle.add_dataset(Mesh(name="test_1"))
handle.add_dataset(Particles(name="test_2"))
lattice = make_cubic_lattice("test_3", 1.0, (2, 3, 4))
handle.add_dataset(lattice)
test_h1 = handle.get_dataset("test_1")
test_h2 = handle.get_dataset("test_2")
test_h3 = handle.get_dataset("test_3")
with self.assertRaises(Exception):
handle.get_dataset('test_h1')
with self.assertRaises(Exception):
test_h1.name = 'foo'
with self.assertRaises(Exception):
test_h2.name = 'foo'
with self.assertRaises(Exception):
test_h3.name = 'foo'
