def test_model_set_dim():
class MyShim(Shim):
name = "testshim"
model_a = create_model("a")
model = Model(
"test",
lambda X: (X, lambda dY: dY),
dims={
"nI": 5,
"nO": None
},
params={
"W": None,
"b": None
},
refs={
"a": model_a,
"b": None
},
attrs={"foo": "bar"},
shims=[MyShim(None)],
layers=[model_a, model_a],
)
with pytest.raises(ValueError):
model.set_dim("nI", 10)
# force can be used before any parameters are set
model.set_dim("nI", 10, force=True)
model.set_param("W", model.ops.alloc1f(10))
model.set_grad("W", model.ops.alloc1f(10))
assert model.has_dim("nI")
assert model.get_dim("nI") == 10
with pytest.raises(KeyError):
model.set_dim("xyz", 20)
with pytest.raises(ValueError):
model.set_dim("nI", 20)
# force can't be used after any parameter is set
with pytest.raises(ValueError):
model.set_dim("nI", 20, force=True)
def test_model_init():
class MyShim(Shim):
name = "testshim"
model_a = create_model("a")
model = Model(
"test",
lambda X: (X, lambda dY: dY),
dims={
"nI": 10,
"nO": None
},
params={
"W": numpy.zeros((10, )),
"b": None
},
refs={
"a": model_a,
"b": None
},
attrs={"foo": "bar"},
shims=[MyShim(None)],
layers=[model_a, model_a],
)
assert model.has_param("W")
assert model.get_param("W").shape == (10, )
assert model.has_param("b") is None
with pytest.raises(KeyError):
model.get_param("b")
with pytest.raises(KeyError):
model.get_param("X")
model.set_param("X", numpy.zeros((10, )))
assert model.has_param("X")
assert model.get_param("X").shape == (10, )
with model.use_params({(model.id, "X"): numpy.ones((10, ))}):
assert numpy.array_equal(model.get_param("X"), numpy.ones((10, )))
assert numpy.array_equal(model.get_param("X"), numpy.zeros((10, )))
assert not model.has_grad("W")
assert not model.has_grad("xyz")
with pytest.raises(KeyError):
model.get_grad("b")
model.set_param("W", model.ops.alloc1f(10))
model.set_grad("W", model.ops.alloc1f(10))
with pytest.raises(ValueError):
model.inc_grad("W", numpy.zeros((5, 0)))
assert model.has_dim("nI")
assert model.get_dim("nI") == 10
with pytest.raises(KeyError):
model.get_dim("xyz")
with pytest.raises(ValueError):
model.get_dim("nO")
with pytest.raises(KeyError):
model.set_dim("xyz", 20)
with pytest.raises(ValueError):
model.set_dim("nI", 20)
assert model.has_ref("a")
assert model.get_ref("a").name == "a"
assert not model.has_ref("xyz")
with pytest.raises(KeyError):
model.get_ref("xyz")
assert model.has_ref("b") is None
with pytest.raises(ValueError):
model.get_ref("b")
model.set_ref("c", model_a)
assert model.has_ref("c")
assert model.get_ref("c").name == "a"
with pytest.raises(ValueError):
model.set_ref("c", create_model("c"))
assert "foo" in model.attrs
assert "bar" not in model.attrs
assert model.attrs["foo"] == "bar"
with pytest.raises(KeyError):
model.attrs["bar"]
model.attrs["bar"] = "baz"
model_copy = model.copy()
assert model_copy.name == "test"