def test_resize(self):
data = np.zeros(10)
B = DataBuffer(data=data)
data = np.zeros(20)
B.set_data(data)
assert B.nbytes == data.nbytes
assert B._need_resize is True
def test_set_data_base(self):
dtype = np.dtype([('position', np.float32, 3),
('texcoord', np.float32, 2),
('color', np.float32, 4)])
data = np.zeros(10, dtype=dtype)
B = DataBuffer(data, store=True)
B.set_data(data)
assert len(B._pending_data) == 1
def test_set_data_offset(self):
data = np.zeros(100, np.float32)
subdata = data[:10]
B = DataBuffer(data)
B.set_data(subdata, offset=10)
offset = B._pending_data[-1][2]
print (offset)
assert offset == 10*4
def test_invalid_view_after_set_data(self):
dtype = np.dtype([('position', np.float32, 3),
('texcoord', np.float32, 2),
('color', np.float32, 4)])
data = np.zeros(10, dtype=dtype)
B = DataBuffer(data)
Z = B[5:]
B.set_data(np.zeros(15, dtype=dtype))
assert Z._valid is False
