def test_leaf_components_combination_kernel():
"""
Regression test for kernel compositions - output for printing should not be empty (issue #1066).
"""
k = gpflow.kernels.SquaredExponential(
) + gpflow.kernels.SquaredExponential()
assert leaf_components(
k), "Combination kernel should have non-empty leaf components"
def test_merge_leaf_components_merges_keys_with_same_values(
dag_module, expected_var_dicts):
leaf_components_dict = leaf_components(dag_module)
for path, variable in _merge_leaf_components(leaf_components_dict).items():
assert path in expected_var_dicts
for sub_path in path.split("\n"):
assert sub_path in leaf_components_dict
assert leaf_components_dict[sub_path] is variable
def test_leaf_components_registers_param_properties(module_class,
expected_var_dicts):
module = module_class()
for path, variable in leaf_components(module).items():
var_name = path.split(".")[-2] + "." + path.split(".")[-1]
assert isinstance(variable, tf.Variable)
np.testing.assert_equal(variable.numpy(),
expected_var_dicts[var_name]["value"])
assert variable.trainable == expected_var_dicts[var_name]["trainable"]
assert variable.shape == expected_var_dicts[var_name]["shape"]
def test_leaf_components_registers_compose_kernel_variable_properties(
module_callable, expected_param_dicts):
module = module_callable()
leaf_components_dict = leaf_components(module)
assert len(leaf_components_dict) > 0
for path, variable in leaf_components_dict.items():
path_as_list = path.split(".")
param_name = path_as_list[-3] + "." + path_as_list[
-2] + "." + path_as_list[-1]
assert isinstance(variable, gpflow.Parameter)
np.testing.assert_equal(variable.numpy(),
expected_param_dicts[param_name]["value"])
assert variable.trainable == expected_param_dicts[param_name][
"trainable"]
assert variable.shape == expected_param_dicts[param_name]["shape"]
def test_leaf_components_only_returns_parameters_and_variables(module):
for path, variable in leaf_components(module).items():
assert isinstance(variable, tf.Variable) or isinstance(
variable, gpflow.Parameter)
