def test29(self):
test_results_path = self.get_path_to_results()
output_file = os.path.join(test_results_path, "test29"+self.store_version()+".hdf5")
if os.path.exists(output_file):
os.remove(output_file)
particles = Grid(10)
particles.attribute1 = "normal"
particles.attribute2 = u"unicode"
io.write_set_to_file(particles,output_file, format='amuse', version = self.store_version())
output = io.read_set_from_file(output_file, format='amuse')
self.assertEquals(output[0].attribute2, u"unicode")
