def test_particles_snapshot(self):
particles = Particles("test")
random.seed(42)
for i in range(0, 1000):
p = Particle(coordinates=(random.uniform(0.0, 10.0),
random.uniform(0.0, 10.0),
random.uniform(0.0, 10.0)))
particles.add_particles([p])
snapshot(particles, self.filename)
self.assertTrue(os.path.exists(self.filename))
image = Image.open(self.filename)
self.assertTrue(image.size)
self.assertTrue(image.size[0] > 0 and image.size[1] > 0)
def test_unknown_container(self):
container = object()
with self.assertRaises(TypeError):
snapshot(container, "fail.png")
def test_mesh_snapshot(self):
mesh = Mesh('test')
with self.assertRaises(TypeError):
snapshot(mesh, "fail.png")
def test_lattice_snapshot(self):
lattice = create_lattice()
with self.assertRaises(TypeError):
snapshot(lattice, "fail.png")
