def test_splitting_of_one_forked_non_const(self):
        """One of forked outputs of a non-constant node is splitted."""
        s1 = StateSaver(int)
        s2 = StateSaver(int)
        with DeltaGraph() as graph:
            val = return_12_non_const()
            val_x = val.x
            s1.save(val_x)
            s2.save_and_exit(val_x)

        rt = DeltaPySimulator(graph)
        rt.run()
        self.assertEqual(s2.saved, [1])
    def setUp(self):
        r"""Build the graph
        ```
                     / saver1
                    /
            placeholder -- saver2
                    \
                     \ saver3
        ```
        """
        with DeltaGraph() as my_graph:
            saver1 = StateSaver(bool)
            saver2 = StateSaver(bool)
            saver3 = StateSaver(bool)

            val = placeholder_node_factory()
            saver1.save(val)
            saver2.save(val)
            saver3.save(val)

            def true() -> bool:
                return True

            val.specify_by_func(true)

        self.graph = my_graph
        self.savers = [saver1, saver2, saver3]
Exemple #3
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    def test_serialise_state_saver(self):
        """Serialise a state saver and load it in a new instance."""
        saver = StateSaver(t=int, verbose=True)
        with DeltaGraph():
            saver_node = saver.save(return_2_const())
        saver_body = saver_node.body.as_serialised
        python_string = textwrap.dedent(f"""
            import dill
            saver_body = dill.loads({saver_body})
            saver_body.eval(5)
            """)
        p = subprocess.run([r"python"],
                           input=str.encode(python_string),
                           stdout=subprocess.PIPE,
                           check=False)
        output = p.stdout.decode()

        self.assertEqual(output, "saving 5\n")
    def setUp(self):
        r"""Build the graph
        ```
                     / saver1
                    /
            return_1 -- saver2
                    \
                     \ saver3
        ```
        """
        with DeltaGraph() as my_graph:
            saver1 = StateSaver(int)
            saver2 = StateSaver(int)
            saver3 = StateSaver(int)

            val = return_1()
            saver1.save(val)
            saver2.save(val)
            saver3.save(val)

        self.graph = my_graph
        self.savers = [saver1, saver2, saver3]