def test_buffer_resize(self):
data = np.zeros(10)
B = Buffer(data=data)
data = np.zeros(20)
B._need_resize = False
B.set_data(data)
assert B.nbytes == data.nbytes
assert B._need_resize is True
def test_offlimit_offset(self):
data = np.zeros(10)
B = Buffer(data=data, resizeable=False)
self.assertRaises(ValueError,
B.set_data,
np.ones(1),
offset=10 * data.dtype.itemsize)
def test_init_default(self):
B = Buffer()
assert B._target == gl.GL_ARRAY_BUFFER
assert B._handle == -1
assert B._need_create is True
assert B._need_update is True
assert B._need_resize is True
assert B._need_delete is False
assert B._nbytes == 0
assert B._usage == gl.GL_DYNAMIC_DRAW
assert B._resizeable is True
def test_buffer_size(self):
data = np.zeros(10)
B = Buffer(data=data)
assert B.nbytes == data.nbytes
def test_negative_offset(self):
data = np.zeros(10)
B = Buffer(data=data, resizeable=False)
# with self.assertRaises(ValueError):
# B.set_data(np.ones(1), offset=-1)
self.assertRaises(ValueError, B.set_data, np.ones(1), offset=-1)
def test_oversized_data(self):
data = np.zeros(10)
B = Buffer(data=data, resizeable=False)
self.assertRaises(ValueError, B.set_data, np.ones(20))
def test_data_copy(self):
data = np.zeros(100)
B = Buffer(data=data)
B.set_data(data=data[:50], offset=0, copy=True)
assert B._pending_data[-1][0].base is not data
def test_data_storage(self):
data = np.zeros(100)
B = Buffer(data=data)
B.set_data(data=data[:50], offset=0, copy=False)
assert B._pending_data[-1][0].base is data
def test_set_whole_data(self):
data = np.zeros(100)
B = Buffer(data=data)
B.set_data(data=data)
assert len(B._pending_data) == 1
def test_init_with_data(self):
data = np.zeros(100)
B = Buffer(data=data)
assert len(B._pending_data) == 1
def test_init_no_data(self):
B = Buffer()
assert len(B._pending_data) == 0
def test_buffer_forbidden_resize(self):
data = np.zeros(10)
B = Buffer(data=data, resizeable=False)
data = np.zeros(20)
self.assertRaises(ValueError, B.set_data, data)
