Method test_order_copy_writed

test/backend/test_graph.py:127–145

(self)

      for i, buf in enumerate(b): np.testing.assert_equal(expected[i], np.frombuffer(buf.as_memoryview(), np.int32))

  def test_order_copy_writed(self):
    self.skip_if_not_multigraph()
    d0 = Device.DEFAULT
    b = [make_buffer(d0, fill=True) for _ in range(4)]
    c: dict[Buffer,UOp] = {}

    calls = [
      get_ast(d0, 2).call(get_buf_uop(b[0],c), get_buf_uop(b[1],c), get_buf_uop(b[2],c), metadata=()),
      UOp(Ops.COPY).call(get_buf_uop(b[3],c), get_buf_uop(b[0],c), metadata=()),
    ]

    zero_bufs([b[0], b[3]])
    run_schedule(calls)
    expected = [np.frombuffer(x.as_memoryview(), np.int32).copy() for x in b]

    for _ in range(RUN_CNT):
      zero_bufs([b[0], b[3]])
      make_graph(Device[d0].graph, calls)([], {})
      for i, buf in enumerate(b): np.testing.assert_equal(expected[i], np.frombuffer(buf.as_memoryview(), np.int32))

  def test_order_copy_then_read(self):
    self.skip_if_not_multigraph()