示例#1
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    def test_5(self):
        domain2 = XMLDomainReader.extract_domain(TestRule2.domain_file3)
        system2 = DialogueSystem(domain2)
        system2.detach_module(ForwardPlanner)
        system2.get_settings().show_gui = False
        system2.start_system()

        TestRule2.inference.check_util(
            system2.get_state(), ["a_ml'", "a_mg'", "a_md'"],
            Assignment([
                Assignment("a_ml'", "SayYes"),
                Assignment("a_mg'", "Nod"),
                Assignment("a_md'", "None")
            ]), 2.4)
        TestRule2.inference.check_util(
            system2.get_state(), ["a_ml'", "a_mg'", "a_md'"],
            Assignment([
                Assignment("a_ml'", "SayYes"),
                Assignment("a_mg'", "Nod"),
                Assignment("a_md'", "DanceAround")
            ]), -0.6)
        TestRule2.inference.check_util(
            system2.get_state(), ["a_ml'", "a_mg'", "a_md'"],
            Assignment([
                Assignment("a_ml'", "SayYes"),
                Assignment("a_mg'", "None"),
                Assignment("a_md'", "None")
            ]), 1.6)
示例#2
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    def test_3(self):
        system = DialogueSystem(TestRule2.domain)
        system.get_settings().show_gui = False
        system.detach_module(ForwardPlanner)
        eq_factor = EquivalenceDistribution.none_prob
        EquivalenceDistribution.none_prob = 0.1
        old_prune_threshold = StatePruner.value_pruning_threshold
        StatePruner.value_pruning_threshold = 0.0
        system.start_system()

        TestRule2.inference.check_util(system.get_state(), "a_m'", "Do(A)",
                                       0.6)
        TestRule2.inference.check_util(system.get_state(), "a_m'", "Do(B)",
                                       -2.6)

        builder = CategoricalTableBuilder("a_u")
        builder.add_row("Ask(B)", 0.8)
        builder.add_row("None", 0.2)
        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())
        system.add_content(builder.build())

        TestRule2.inference.check_util(system.get_state(), "a_m'", "Do(A)",
                                       -4.35)
        TestRule2.inference.check_util(system.get_state(), "a_m'", "Do(B)",
                                       2.357)

        EquivalenceDistribution.none_prob = eq_factor
        StatePruner.value_pruning_threshold = old_prune_threshold
    def test_state_copy(self):
        system = DialogueSystem(TestDialogueState.domain)
        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False

        system.get_settings().show_gui = False
        system.start_system()

        initial_state = copy(system.get_state())

        rule_id = ""
        for id in system.get_state().get_node("u_u2").get_output_node_ids():
            if str(system.get_content(id)).find("+=HowAreYou") != -1:
                rule_id = id

        TestDialogueState.inference.check_prob(
            initial_state, rule_id, Effect.parse_effect("a_u2+=HowAreYou"),
            0.9)
        TestDialogueState.inference.check_prob(initial_state, rule_id,
                                               Effect.parse_effect("Void"),
                                               0.1)

        TestDialogueState.inference.check_prob(initial_state, "a_u2",
                                               "[HowAreYou]", 0.2)
        TestDialogueState.inference.check_prob(initial_state, "a_u2",
                                               "[Greet, HowAreYou]", 0.7)
        TestDialogueState.inference.check_prob(initial_state, "a_u2", "[]",
                                               0.1)

        StatePruner.enable_reduction = True
示例#4
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    def test_planning2(self):
        system = DialogueSystem(TestPlanning.domain2)

        system.get_settings().show_gui = False

        system.start_system()
        assert len(system.get_state().get_node_ids()) == 2
        assert not system.get_state().has_chance_node("a_m")
示例#5
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 def test_6(self):
     domain2 = XMLDomainReader.extract_domain(TestRule2.domain_file4)
     system2 = DialogueSystem(domain2)
     system2.detach_module(ForwardPlanner)
     system2.get_settings().show_gui = False
     system2.start_system()
     TestRule2.inference.check_prob(system2.get_state(), "A",
                                    ValueFactory.create("[a1,a2]"), 1.0)
     TestRule2.inference.check_prob(system2.get_state(), "a_u",
                                    "Request(ball)", 0.5)
示例#6
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    def test_1(self):
        system = DialogueSystem(TestRule1.domain)
        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False
        system.get_settings().show_gui = False
        system.start_system()

        TestRule1.inference.check_prob(system.get_state(), "a_u", "Greeting",
                                       0.8)
        TestRule1.inference.check_prob(system.get_state(), "a_u", "None", 0.2)

        StatePruner.enable_reduction = True
示例#7
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    def test_planning(self):
        system = DialogueSystem(TestPlanning.domain)

        system.get_settings().show_gui = False

        system.start_system()
        assert len(system.get_state().get_nodes()) == 3
        assert len(system.get_state().get_chance_nodes()) == 3
        assert len(system.get_state().get_evidence().get_variables()) == 0
        TestPlanning.inference.check_prob(system.get_state(), "a_m3", "Do",
                                          1.0)
        TestPlanning.inference.check_prob(system.get_state(), "obj(a_m3)", "A",
                                          1.0)
示例#8
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    def test_7(self):
        system = DialogueSystem(TestRule1.domain)
        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False
        system.get_settings().show_gui = False
        system.start_system()

        TestRule1.inference.check_prob(system.get_state(), "a_u2",
                                       "[Greet, HowAreYou]", 0.7)
        TestRule1.inference.check_prob(system.get_state(), "a_u2", "[]", 0.1)
        TestRule1.inference.check_prob(system.get_state(), "a_u2",
                                       "[HowAreYou]", 0.2)

        StatePruner.enable_reduction = True
示例#9
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    def test_5(self):
        system = DialogueSystem(TestRule1.domain)
        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False
        system.get_settings().show_gui = False
        system.start_system()

        TestRule1.inference.check_prob(system.get_state(), "o2",
                                       "here is value1", 0.35)
        TestRule1.inference.check_prob(system.get_state(), "o2",
                                       "and value2 is over there", 0.07)
        TestRule1.inference.check_prob(system.get_state(), "o2",
                                       "value3, finally", 0.28)

        StatePruner.enable_reduction = True
示例#10
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    def test_4(self):
        system = DialogueSystem(TestRule1.domain)
        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False
        system.get_settings().show_gui = False
        system.start_system()

        TestRule1.inference.check_prob(system.get_state(), "o",
                                       "and we have var1=value2", 0.3)
        TestRule1.inference.check_prob(system.get_state(), "o",
                                       "and we have localvar=value1", 0.2)
        TestRule1.inference.check_prob(system.get_state(), "o",
                                       "and we have localvar=value3", 0.28)

        StatePruner.enable_reduction = True
示例#11
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    def test_1(self):
        domain = XMLDomainReader.extract_domain(TestRule3.test1_domain_file)
        inference = InferenceChecks()
        inference.exact_threshold = 0.06
        system = DialogueSystem(domain)
        system.get_settings().show_gui = False
        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False
        system.start_system()

        inference.check_prob(system.get_state(), "found", "A", 0.7)

        inference.check_prob(system.get_state(), "found2", "D", 0.3)
        inference.check_prob(system.get_state(), "found2", "C", 0.5)

        StatePruner.enable_reduction = True
示例#12
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    def test_2(self):
        inference = InferenceChecks()

        domain = XMLDomainReader.extract_domain(TestRule3.test2_domain_file)
        system = DialogueSystem(domain)
        system.get_settings().show_gui = False

        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False
        system.start_system()

        inference.check_prob(system.get_state(), "graspable(obj1)", "True", 0.81)

        inference.check_prob(system.get_state(), "graspable(obj2)", "True", 0.16)
        inference.check_util(system.get_state(), "a_m'", "grasp(obj1)", 0.592)

        StatePruner.enable_reduction = True
示例#13
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    def test_3(self):
        InferenceChecks.exact_threshold = 0.06

        system = DialogueSystem(TestRule1.domain)
        system.detach_module(ForwardPlanner)
        StatePruner.enable_reduction = False
        system.get_settings().show_gui = False
        system.start_system()

        TestRule1.inference.check_prob(system.get_state(), "direction",
                                       "straight", 0.79)
        TestRule1.inference.check_prob(system.get_state(), "direction", "left",
                                       0.20)
        TestRule1.inference.check_prob(system.get_state(), "direction",
                                       "right", 0.01)

        StatePruner.enable_reduction = True
示例#14
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    def test_param_2(self):
        InferenceChecks.exact_threshold = 0.1

        system = DialogueSystem(TestParameters.domain1)
        system.detach_module(ForwardPlanner)
        system.get_settings().show_gui = False

        assert system.get_state().has_chance_node("theta_3")
        TestParameters.inference.check_cdf(system.get_state(), "theta_3", 0.6, 0.0)
        TestParameters.inference.check_cdf(system.get_state(), "theta_3", 0.8, 0.5)
        TestParameters.inference.check_cdf(system.get_state(), "theta_3", 0.95, 1.0)

        system.start_system()
        system.add_content("u_u", "brilliant")
        distrib = system.get_content("a_u")

        assert distrib.get_prob("approval") == pytest.approx(0.8, abs=0.05)
示例#15
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    def test_planning3(self):
        system = DialogueSystem(TestPlanning.domain2)

        system.get_settings().show_gui = False

        system.get_settings().horizon = 2
        system.start_system()
        TestPlanning.inference.check_prob(system.get_state(), "a_m",
                                          "AskRepeat", 1.0)
示例#16
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 def test_underspec(self):
     domain = XMLDomainReader.extract_domain("test/data/underspectest.xml")
     system = DialogueSystem(domain)
     system.get_settings().show_gui = False
     StatePruner.enable_reduction = False
     system.start_system()
     assert system.get_content("match").get_prob("obj_1") == pytest.approx(0.66, abs=0.05)
     assert system.get_content("match").get_prob("obj_3") == pytest.approx(0.307, abs=0.05)
     assert len(system.get_state().get_chance_node_ids()) == 14
     StatePruner.enable_reduction = True
示例#17
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    def test_param_1(self):
        InferenceChecks.exact_threshold = 0.1

        system = DialogueSystem(TestParameters.domain1)
        system.detach_module(ForwardPlanner)
        system.get_settings().show_gui = False
        assert system.get_state().has_chance_node("theta_1")
        TestParameters.inference.check_cdf(system.get_state(), "theta_1", 0.5, 0.5)
        TestParameters.inference.check_cdf(system.get_state(), "theta_1", 5., 0.99)

        TestParameters.inference.check_cdf(system.get_state(), "theta_2", 1., 0.07)
        TestParameters.inference.check_cdf(system.get_state(), "theta_2", 2., 0.5)

        system.start_system()
        system.add_content("u_u", "hello there")
        utils = ((SamplingAlgorithm()).query_util(system.get_state(), "u_m'"))
        assert utils.get_util(Assignment("u_m'", "yeah yeah talk to my hand")) > 0
        assert utils.get_util(Assignment("u_m'", "so interesting!")) > 1.7
        assert utils.get_util(Assignment("u_m'", "yeah yeah talk to my hand")) < utils.get_util(Assignment("u_m'", "so interesting!"))
        assert len(system.get_state().get_node_ids()) == 11
示例#18
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    def test_6(self):
        InferenceChecks.exact_threshold = 0.06

        system = DialogueSystem(TestRule1.domain)
        system.detach_module(ForwardPlanner)
        system.get_settings().show_gui = False
        system.start_system()

        builder = CategoricalTableBuilder("var1")
        builder.add_row("value2", 0.9)
        system.add_content(builder.build())

        TestRule1.inference.check_prob(system.get_state(), "o",
                                       "and we have var1=value2", 0.9)
        TestRule1.inference.check_prob(system.get_state(), "o",
                                       "and we have localvar=value1", 0.05)
        TestRule1.inference.check_prob(system.get_state(), "o",
                                       "and we have localvar=value3", 0.04)

        StatePruner.enable_reduction = True
示例#19
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    def test_IS2013(self):
        domain = XMLDomainReader.extract_domain(TestLearning.domain_file)
        params = XMLStateReader.extract_bayesian_network(TestLearning.parameters_file, "parameters")
        domain.set_parameters(params)
        system = DialogueSystem(domain)
        system.get_settings().show_gui = False
        system.detach_module(ForwardPlanner)
        Settings.nr_samples = Settings.nr_samples * 3
        Settings.max_sampling_time = Settings.max_sampling_time * 10
        system.start_system()

        init_mean = system.get_content("theta_1").to_continuous().get_function().get_mean()

        builder = CategoricalTableBuilder("a_u")
        builder.add_row("Move(Left)", 1.0)
        builder.add_row("Move(Right)", 0.0)
        builder.add_row("None", 0.0)
        system.add_content(builder.build())
        system.get_state().remove_nodes(system.get_state().get_utility_node_ids())
        system.get_state().remove_nodes(system.get_state().get_action_node_ids())

        after_mean = system.get_content("theta_1").to_continuous().get_function().get_mean()

        assert after_mean[0] - init_mean[0] > 0.04
        assert after_mean[1] - init_mean[1] < 0.04
        assert after_mean[2] - init_mean[2] < 0.04
        assert after_mean[3] - init_mean[3] < 0.04
        assert after_mean[4] - init_mean[4] < 0.04
        assert after_mean[5] - init_mean[5] < 0.04
        assert after_mean[6] - init_mean[6] < 0.04
        assert after_mean[7] - init_mean[7] < 0.04

        Settings.nr_samples = int(Settings.nr_samples / 3)
        Settings.max_sampling_time = Settings.max_sampling_time / 10
示例#20
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    def test_rule_and_params(self):
        domain = XMLDomainReader.extract_domain(TestRuleAndParams.domain_file)
        system = DialogueSystem(domain)

        system.get_settings().show_gui = False

        system.start_system()
        assert system.get_content("theta_moves").to_continuous().get_function().get_mean()[0] == pytest.approx(0.2, abs=0.02)
        assert system.get_content("a_u^p").get_prob("I want left") == pytest.approx(0.12, abs=0.03)
        assert len(system.get_state().get_chance_node("theta_moves").get_output_node_ids()) == 1
        assert system.get_state().has_chance_node("movements")
        assert isinstance(system.get_state().get_chance_node("movements").get_distrib(), AnchoredRule)

        t = CategoricalTableBuilder("a_u")
        t.add_row("I want left", 0.8)
        t.add_row("I want forward", 0.1)
        system.add_content(t.build())

        assert len(system.get_state().get_chance_node("theta_moves").get_output_node_ids()) == 0
        assert not system.get_state().has_chance_node("movements")
        assert system.get_content("theta_moves").to_continuous().get_function().get_mean()[0] == pytest.approx(2.0 / 6.0, abs=0.07)

        system.add_content("a_m", "turning left")

        assert system.get_content("a_u^p").get_prob("I want left") == pytest.approx(0.23, abs=0.04)
        assert len(system.get_state().get_chance_node("theta_moves").get_output_node_ids()) == 1
示例#21
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    def test_planning4(self):
        system = DialogueSystem(TestPlanning.domain3)

        system.get_settings().show_gui = False

        system.get_settings().horizon = 3
        system.start_system()

        t1 = CategoricalTableBuilder("a_u")
        t1.add_row("Ask(Coffee)", 0.95)
        t1.add_row("Ask(Tea)", 0.02)
        system.add_content(t1.build())
        TestPlanning.inference.check_prob(system.get_state(), "a_m",
                                          "Do(Coffee)", 1.0)
示例#22
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    def test_4(self):
        domain2 = XMLDomainReader.extract_domain(TestRule2.domain_file2)
        system2 = DialogueSystem(domain2)
        system2.get_settings().show_gui = False
        system2.detach_module(ForwardPlanner)
        system2.start_system()

        TestRule2.inference.check_util(
            system2.get_state(), ["a_m3'", "obj(a_m3)'"],
            Assignment(
                [Assignment("a_m3'", "Do"),
                 Assignment("obj(a_m3)'", "A")]), 0.3)
        TestRule2.inference.check_util(
            system2.get_state(), ["a_m3'", "obj(a_m3)'"],
            Assignment(
                [Assignment("a_m3'", "Do"),
                 Assignment("obj(a_m3)'", "B")]), -1.7)
        TestRule2.inference.check_util(
            system2.get_state(), ["a_m3'", "obj(a_m3)'"],
            Assignment([
                Assignment("a_m3'", "SayHi"),
                Assignment("obj(a_m3)'", "None")
            ]), -0.9)
    def test_state_copy2(self):
        InferenceChecks.exact_threshold = 0.08

        system = DialogueSystem(TestDialogueState.domain)
        system.get_settings().show_gui = False
        system.detach_module(ForwardPlanner)
        system.start_system()

        initial_state = copy(system.get_state())

        TestDialogueState.inference.check_prob(initial_state, "a_u2",
                                               "[HowAreYou]", 0.2)
        TestDialogueState.inference.check_prob(initial_state, "a_u2",
                                               "[Greet, HowAreYou]", 0.7)
        TestDialogueState.inference.check_prob(initial_state, "a_u2", "[]",
                                               0.1)
示例#24
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    def test_param_3(self):
        system = DialogueSystem(TestParameters.domain1)
        system.detach_module(ForwardPlanner)
        system.get_settings().show_gui = False
        system.start_system()

        rules = TestParameters.domain1.get_models()[0].get_rules()
        outputs = rules[1].get_output(Assignment("u_u", "no no"))
        o = Effect(BasicEffect("a_u", "disapproval"))
        assert isinstance(outputs.get_parameter(o), SingleParameter)
        input = Assignment("theta_4", ValueFactory.create("[0.36, 0.64]"))
        assert outputs.get_parameter(o).get_value(input) == pytest.approx(0.64, abs=0.01)

        system.get_state().remove_nodes(system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(system.get_state().get_utility_node_ids())
        system.add_content("u_u", "no no")
        assert system.get_state().query_prob("theta_4").to_continuous().get_function().get_mean()[0] == pytest.approx(0.36, abs=0.1)

        assert system.get_content("a_u").get_prob("disapproval") == pytest.approx(0.64, abs=0.1)
示例#25
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    def test_param1(self):
        domain = XMLDomainReader.extract_domain(TestDemo.domain_file)
        params = XMLStateReader.extract_bayesian_network(
            TestDemo.param_file, "parameters")
        domain.set_parameters(params)
        system = DialogueSystem(domain)
        system.get_settings().show_gui = False

        system.detach_module(ForwardPlanner)
        system.get_settings().show_gui = False

        system.start_system()
        system.add_content("a_m", "AskRepeat")

        t = CategoricalTableBuilder("a_u")
        t.add_row("DoA", 0.7)
        t.add_row("a_u", 0.2)
        t.add_row("a_u", 0.1)
        system.add_content(t.build())
        for i in range(3000):
            print((system.get_state().get_chance_node("theta").sample()
                   ).get_array()[0])
示例#26
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    def test_param_5(self):
        system = DialogueSystem(TestParameters.domain2)
        system.detach_module(ForwardPlanner)
        system.get_settings().show_gui = False
        system.start_system()

        rules = TestParameters.domain2.get_models()[0].get_rules()
        outputs = rules[0].get_output(Assignment("u_u", "brilliant"))
        o = Effect(BasicEffect("a_u", "approval"))
        assert isinstance(outputs.get_parameter(o), ComplexParameter)
        input = Assignment([Assignment("theta_6", 2.1), Assignment("theta_7", 1.3)])
        assert outputs.get_parameter(o).get_value(input) == pytest.approx(0.74, abs=0.01)

        system.get_state().remove_nodes(system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(system.get_state().get_utility_node_ids())
        system.add_content("u_u", "brilliant")

        assert system.get_state().query_prob("theta_6").to_continuous().get_function().get_mean()[0] == pytest.approx(1.0, abs=0.08)

        assert system.get_content("a_u").get_prob("approval") == pytest.approx(0.63, abs=0.08)
        assert system.get_content("a_u").get_prob("irony") == pytest.approx(0.3, abs=0.08)
示例#27
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    def test_domain(self):
        system = DialogueSystem(
            XMLDomainReader.extract_domain(
                "test/data/example-step-by-step_params.xml"))
        system.detach_module(ForwardPlanner)
        system.get_settings().show_gui = False
        system.start_system()

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("move a little bit left", 0.4)
        o1.add_row("please move a little right", 0.3)
        system.add_content(o1.build())
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Left)")) == pytest.approx(-0.1, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("move a little bit left", 0.5)
        o1.add_row("please move a little left", 0.2)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Left)")) == pytest.approx(0.2, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("now move right please", 0.8)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Right)")) == pytest.approx(0.3, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("move left", 0.7)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Left)")) == pytest.approx(0.2, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("turn left", 0.32)
        o1.add_row("move left again", 0.3)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Left)")) == pytest.approx(0.1, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("and do that again", 0.0)
        system.add_content(o1.build())

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("turn left", 1.0)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Left)")) == pytest.approx(0.5, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("turn right", 0.4)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Right)")) == pytest.approx(-0.1, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("please turn right", 0.8)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Right)")) == pytest.approx(0.3, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())

        o1 = CategoricalTableBuilder("u_u")
        o1.add_row("and turn a bit left", 0.3)
        o1.add_row("move a bit left", 0.3)
        system.add_content(o1.build())

        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "AskRepeat")) == pytest.approx(0.0, abs=0.3)
        assert system.get_state().query_util(["a_m'"]).get_util(
            Assignment("a_m'", "Move(Left)")) == pytest.approx(0.1, abs=0.15)

        system.get_state().remove_nodes(
            system.get_state().get_action_node_ids())
        system.get_state().remove_nodes(
            system.get_state().get_utility_node_ids())
示例#28
0
    def test1(self):
        domain = XMLDomainReader.extract_domain(TestIncremental.domain_file)
        system = DialogueSystem(domain)

        # NEED GUI & Recording
        system.get_settings().show_gui = False
        # system.get_settings().recording = Settings.Recording.ALL

        system.start_system()
        system.add_content(system.get_settings().user_speech, "busy")
        system.add_incremental_content(SingleValueDistribution("u_u", "go"),
                                       False)

        sleep(0.1)

        assert ValueFactory.create("go") in system.get_content(
            "u_u").get_values()

        t = CategoricalTableBuilder("u_u")
        t.add_row("forward", 0.7)
        t.add_row("backward", 0.2)

        system.add_incremental_content(t.build(), True)

        sleep(0.1)

        assert ValueFactory.create("go forward") in system.get_content(
            "u_u").get_values()
        assert system.get_content("u_u").get_prob(
            "go backward") == pytest.approx(0.2, abs=0.001)
        assert system.get_state().has_chance_node("nlu")

        system.add_content(system.get_settings().user_speech, "None")
        assert len(system.get_state().get_chance_nodes()) == 7
        system.add_incremental_content(
            SingleValueDistribution("u_u", "please"), True)
        assert system.get_state().get_evidence().contains_pair(
            "=_a_u", ValueFactory.create(True))

        assert system.get_content("u_u").get_prob(
            "go please") == pytest.approx(0.1, abs=0.001)
        assert system.get_state().has_chance_node("nlu")

        system.get_state().set_as_committed("u_u")
        assert not system.get_state().has_chance_node("nlu")

        t2 = CategoricalTableBuilder("u_u")
        t2.add_row("I said go backward", 0.3)

        system.add_incremental_content(t2.build(), True)
        assert system.get_content("a_u").get_prob(
            "Request(Backward)") == pytest.approx(0.82, abs=0.05)
        assert ValueFactory.create("I said go backward") in system.get_content(
            "u_u").get_values()
        assert system.get_state().has_chance_node("nlu")

        system.get_state().set_as_committed("u_u")
        assert not system.get_state().has_chance_node("nlu")
        system.add_incremental_content(
            SingleValueDistribution("u_u", "yes that is right"), False)
        assert ValueFactory.create("yes that is right") in system.get_content(
            "u_u").get_values()
示例#29
0
    def test_dialogue2(self):
        system = DialogueSystem(TestFlightBooking.domain)
        system.get_settings().show_gui = False
        system.start_system()

        u_u = dict()
        u_u["err I don't know, where can I go?"] = 0.8
        system.add_user_input(u_u)
        assert system.get_content("a_u").to_discrete().get_prob("[Other]") == pytest.approx(0.8, abs=0.01)
        assert str(system.get_content("a_m").get_best()) == "AskRepeat"
        u_u.clear()
        u_u["ah ok well I want to go to Tromsø please"] = 0.8
        system.add_user_input(u_u)
        assert system.get_content("a_u").to_discrete().get_prob("[Inform(Airport,Tromsø)]") == pytest.approx(0.91, abs=0.01)
        assert system.get_content("Destination").to_discrete().get_prob("Tromsø") == pytest.approx(0.91, abs=0.01)
        assert str(system.get_content("a_m").get_best()) == "Confirm(Destination,Tromsø)"
        u_u.clear()
        u_u["that's right"] = 0.6
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").get_best()) == "Ground(Destination,Tromsø)"
        assert str(system.get_content("u_m").get_best()).find("departure?") != -1
        u_u.clear()
        u_u["I'll be leaving from Moss"] = 0.1
        system.add_user_input(u_u)
        assert system.get_content("a_u").to_discrete().get_prob("[Inform(Airport,Moss)]") == pytest.approx(0.357, abs=0.01)
        assert system.get_content("Destination").to_discrete().get_prob("Tromsø") == pytest.approx(1.0, abs=0.01)
        assert system.get_content("Departure").to_discrete().get_prob("Moss") == pytest.approx(0.357, abs=0.01)
        assert str(system.get_content("a_m").get_best()) == "AskRepeat"
        u_u.clear()
        u_u["I am leaving from Moss, did you get that right?"] = 0.2
        u_u["Bodø, did you get that right?"] = 0.4
        system.add_user_input(u_u)
        assert system.get_content("a_u").to_discrete().get_prob("[Confirm,Inform(Airport,Moss)]") == pytest.approx(0.72, abs=0.01)
        assert system.get_content("Departure").to_discrete().get_prob("Moss") == pytest.approx(0.88, abs=0.01)
        assert system.get_content("Departure").to_discrete().get_prob("Bodø") == pytest.approx(0.10, abs=0.01)
        assert str(system.get_content("a_m").get_best()) == "Confirm(Departure,Moss)"
        u_u.clear()
        u_u["yes"] = 0.6
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").get_best()) == "Ground(Departure,Moss)"
        assert str(system.get_content("u_m").get_best()).find("which date") != -1
        u_u.clear()
        u_u["March 16"] = 0.7
        u_u["March 60"] = 0.2
        system.add_user_input(u_u)
        assert system.get_content("a_u").to_discrete().get_prob("[Inform(Date,March,16)]") == pytest.approx(0.7, abs=0.01)
        assert system.get_content("a_u").to_discrete().get_prob("[Other]") == pytest.approx(0.2, abs=0.01)
        assert str(system.get_content("a_m").get_best()) == "AskRepeat"
        u_u.clear()
        u_u["March 16"] = 0.05
        u_u["March 60"] = 0.3
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").get_best()) == "Confirm(Date,March 16)"
        u_u.clear()
        u_u["yes"] = 0.6
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").get_best()) == "Ground(Date,March 16)"
        assert str(system.get_content("u_m").get_best()).find("return trip?") != -1
        u_u.clear()
        u_u["err"] = 0.1
        system.add_user_input(u_u)
        assert not system.get_state().has_chance_node("a_m")
        u_u.clear()
        u_u["yes"] = 0.3
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").get_best()) == "AskRepeat"
        u_u.clear()
        u_u["yes"] = 0.5
        system.add_user_input(u_u)
        assert system.get_content("current_step").get_prob("ReturnDate") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("u_m").get_best()).find("travel back") != -1
        u_u.clear()
        u_u["on the 20th of March"] = 0.7
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").get_best()) == "Confirm(ReturnDate,March 20)"
        assert system.get_content("ReturnDate").to_discrete().get_prob("March 20") == pytest.approx(0.7, abs=0.01)
        u_u.clear()
        u_u["yes"] = 0.6
        system.add_user_input(u_u)
        assert str(system.get_content("u_m").get_best()).find("299 EUR") != -1
        assert str(system.get_content("u_m").get_best()).find("to order tickets?") != -1
        copy_state1 = copy(system.get_state())
        u_u.clear()
        u_u["no"] = 0.7
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").get_best()) == "Ground(Cancel)"
        assert str(system.get_content("current_step").get_best()) == "Final"
        assert str(system.get_content("u_m").get_best()).find("additional tickets?") != -1
        copy_state2 = copy(system.get_state())
        assert str(copy_state2.query_prob("current_step").get_best()) == "Final"
        u_u.clear()
        u_u["no"] = 0.7
        system.add_user_input(u_u)
        assert str(copy_state2.query_prob("current_step").get_best()) == "Final"
        assert str(system.get_content("a_m").get_best()) == "Ground(Close)"
        assert str(system.get_content("current_step").get_best()) == "Close"
        assert str(system.get_content("u_m").get_best()).find("welcome back") != -1
        system.get_state().remove_nodes(system.get_state().get_chance_node_ids())
        system.get_state().add_network(copy_state2)
        assert str(copy_state2.query_prob("current_step").get_best()) == "Final"
        u_u.clear()
        u_u["yes"] = 0.7
        system.add_user_input(u_u)
        assert not system.get_state().has_chance_node("Destination")
        assert str(system.get_content("u_m").get_best()).find("destination?") != -1
        assert sorted(system.get_state().get_chance_node_ids()) == ["Destination^p", "a_m-prev", "current_step", "u_m", "u_u"]

        system.add_user_input("Oslo")
        assert str(system.get_content("a_m").get_best()) == "Ground(Destination,Oslo)"
        system.get_state().remove_nodes(system.get_state().get_chance_node_ids())
        system.get_state().add_network(copy_state1)
        u_u.clear()
        u_u["yes"] = 0.8
        system.add_user_input(u_u)

        assert system.get_content("current_step").get_prob("NbTickets") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Ground(MakeOffer)"
        u_u.clear()
        u_u["one single ticket"] = 0.9
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Inform(Number,1)]") == pytest.approx(0.9, abs=0.01)
        assert system.get_content("current_step").get_prob("NbTickets") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "Ground(MakeOffer)"
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Confirm(NbTickets,1)"
        u_u.clear()
        u_u["yes thank you"] = 1.0
        system.add_user_input(u_u)
        assert len(system.get_content("a_u").get_values()) == pytest.approx(1, abs=0.01)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(1.0, abs=0.05)
        assert system.get_content("NbTickets").get_prob(1.) == pytest.approx(1.0, abs=0.05)
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "Confirm(NbTickets,1)"
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Ground(NbTickets,1)"
        assert system.get_content("current_step").get_prob("LastConfirm") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("u_m").get_best()).find("Shall I confirm") != -1
        assert str(system.get_content("u_m").get_best()).find("299 EUR") != -1
        u_u.clear()
        u_u["yes please"] = 0.5
        u_u["yellow"] = 0.4
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(0.9397, abs=0.01)
        assert system.get_content("current_step").get_prob("Final") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Book"
        assert str(system.get_content("u_m").get_best()).find("additional tickets?") != -1
        copystate3 = copy(system.get_state())
        u_u.clear()
        u_u["thanks but no thanks"] = 0.7
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Disconfirm]") == pytest.approx(0.97, abs=0.01)
        assert system.get_content("current_step").get_prob("Close") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("u_m").get_best()).find("welcome back!") != -1
        assert sorted(system.get_state().get_chance_node_ids()) == ["Date", "Departure", "Destination", "NbTickets", "ReturnDate", "TotalCost", "a_m", "a_m-prev", "a_u", "current_step", "u_m", "u_u"]
        assert len(system.get_content(["Date", "Departure", "Destination", "NbTickets", "ReturnDate", "TotalCost"]).to_discrete().get_values()) == 1
        assert system.get_content(["Date", "Departure", "Destination", "NbTickets", "ReturnDate", "TotalCost"]).to_discrete().get_prob(
            Assignment([
                Assignment("Date", "March 16"),
                Assignment("Departure", "Moss"),
                Assignment("Destination", "Tromsø"),
                Assignment("NbTickets", 1.),
                Assignment("ReturnDate", "March 20"),
                Assignment("TotalCost", 299.)
            ])
        ) == pytest.approx(1.0, abs=0.01)

        system.get_state().remove_nodes(system.get_state().get_chance_node_ids())  ##
        system.get_state().add_network(copystate3)
        u_u.clear()
        u_u["yes"] = 0.7
        system.add_user_input(u_u)
        assert not system.get_state().has_chance_node("Destination")
        assert str(system.get_content("u_m").get_best()).find("destination?") != -1
        assert sorted(system.get_state().get_chance_node_ids()) == ["Destination^p", "a_m-prev", "current_step", "u_m", "u_u"]
        system.add_user_input("Oslo")
        assert str(system.get_content("a_m").get_best()) == "Ground(Destination,Oslo)"
示例#30
0
    def test_dialogue(self):
        system = DialogueSystem(TestFlightBooking.domain)
        system.get_settings().show_gui = False
        system.start_system()
        assert str(system.get_content("u_m").get_best()).find("your destination?") != -1

        u_u = dict()
        u_u["to Bergen"] = 0.4
        u_u["to Bethleem"] = 0.2
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Inform(Airport,Bergen)]") == pytest.approx(0.833, abs=0.01)
        assert len(system.get_content("a_u").get_values()) == pytest.approx(3, abs=0.01)
        assert system.get_state().query_prob("a_u", False).get_prob("[Other]") == pytest.approx(0.055, abs=0.01)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Confirm(Destination,Bergen)"
        u_u.clear()
        u_u["yes exactly"] = 0.8
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(0.98, abs=0.01)
        assert system.get_content("Destination").get_prob("Bergen") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Ground(Destination,Bergen)"
        assert str(system.get_content("u_m").get_best()).find("your departure?") != -1
        u_u.clear()
        u_u["to Stockholm"] = 0.8
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Other]") == pytest.approx(0.8, abs=0.01)
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "Ground(Destination,Bergen)"
        assert len(system.get_content("Destination").to_discrete().get_values()) == 1
        assert system.get_content("Destination").get_prob("Bergen") == pytest.approx(1.0, abs=0.01)
        assert not system.get_state().has_chance_node("Departure")
        assert str(system.get_content("a_m").get_best()) == "AskRepeat"
        assert str(system.get_content("u_m").get_best()).find("you repeat?") != -1
        u_u.clear()
        u_u["to Sandefjord then"] = 0.6
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("None") == pytest.approx(0.149, abs=0.05)
        assert system.get_content("Departure").get_prob("Sandefjord") == pytest.approx(0.88, abs=0.05)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Confirm(Departure,Sandefjord)"
        assert str(system.get_content("u_m").get_best()).find("that correct?") != -1
        u_u.clear()
        u_u["no to Trondheim sorry"] = 0.08
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Inform(Airport,Trondheim),Disconfirm]") == pytest.approx(0.51, abs=0.01)
        assert system.get_content("Departure").get_prob("Trondheim") == pytest.approx(0.51, abs=0.05)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "AskRepeat"
        assert str(system.get_content("u_m").get_best()).find("repeat?") != -1
        u_u.clear()
        u_u["to Trondheim"] = 0.3
        u_u["Sandefjord"] = 0.1
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Inform(Airport,Trondheim)]") == pytest.approx(0.667, abs=0.01)
        assert system.get_content("Destination").get_prob("Bergen") == pytest.approx(1.0, abs=0.01)
        assert system.get_content("Departure").get_prob("Trondheim") == pytest.approx(0.89, abs=0.01)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Confirm(Departure,Trondheim)"
        u_u.clear()
        u_u["yes exactly that's it"] = 0.8
        system.add_user_input(u_u)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Ground(Departure,Trondheim)"
        assert str(system.get_content("u_m").get_best()).find("which date") != -1
        u_u.clear()
        u_u["that will be on May 26"] = 0.4
        u_u["this will be on May 24"] = 0.2
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Inform(Date,May,24)]") == pytest.approx(0.2, abs=0.01)
        assert system.get_content("a_u").get_prob("[Inform(Date,May,26)]") == pytest.approx(0.4, abs=0.01)
        assert system.get_content("Destination").get_prob("Bergen") == pytest.approx(1.0, abs=0.01)
        assert system.get_content("Departure").get_prob("Trondheim") == pytest.approx(1.0, abs=0.01)
        assert system.get_content("Date").get_prob("May 26") == pytest.approx(0.4, abs=0.01)
        assert system.get_content("Date").get_prob("May 24") == pytest.approx(0.2, abs=0.01)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "AskRepeat"
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "Ground(Departure,Trondheim)"
        u_u.clear()
        u_u["May 24"] = 0.5
        u_u["Mayday four"] = 0.5
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Inform(Date,May,24)]") == pytest.approx(0.82, abs=0.05)
        assert system.get_content("a_u").get_prob("[Inform(Number,4)]") == pytest.approx(0.176, abs=0.01)
        assert system.get_content("Date").get_prob("May 26") == pytest.approx(0.02, abs=0.01)
        assert system.get_content("Date").get_prob("May 24") == pytest.approx(0.94, abs=0.01)
        assert system.get_state().has_chance_node("a_m")
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "AskRepeat"
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Ground(Date,May 24)"
        assert str(system.get_content("u_m").get_best()).find("return trip") != -1
        u_u.clear()
        u_u["no thanks"] = 0.9
        system.add_user_input(u_u)
        assert str(system.get_content("u_m").get_best()).find("to order tickets?") != -1
        assert system.get_content("ReturnDate").get_prob("NoReturn") == pytest.approx(1.0, abs=0.01)
        assert system.get_content("current_step").get_prob("MakeOffer") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m").get_best()) == "MakeOffer(179)"
        u_u.clear()
        u_u["yes"] = 0.02
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(0.177, abs=0.01)
        assert system.get_content("current_step").get_prob("MakeOffer") == pytest.approx(1.0, abs=0.01)
        assert not system.get_state().has_chance_node("a_m")
        u_u.clear()
        u_u["yes"] = 0.8
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(0.978, abs=0.01)
        assert system.get_content("current_step").get_prob("NbTickets") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("u_m").get_best()).find("many tickets") != -1
        u_u.clear()
        u_u["uh I don't know me"] = 0.6
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Other]") == pytest.approx(0.6, abs=0.01)
        assert system.get_content("current_step").get_prob("NbTickets") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "Ground(MakeOffer)"
        assert str(system.get_content("a_m").to_discrete().get_best()) == "AskRepeat"
        u_u.clear()
        u_u["three tickets please"] = 0.9
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Inform(Number,3)]") == pytest.approx(0.9, abs=0.01)
        assert system.get_content("current_step").get_prob("NbTickets") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "AskRepeat"
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Confirm(NbTickets,3)"
        u_u.clear()
        u_u["no sorry two tickets"] = 0.4
        u_u["sorry to tickets"] = 0.3
        system.add_user_input(u_u)
        assert len(system.get_content("a_u").get_values()) == pytest.approx(3, abs=0.01)
        assert system.get_content("a_u").get_prob("[Disconfirm,Inform(Number,2)]") == pytest.approx(0.86, abs=0.05)
        assert system.get_content("NbTickets").get_prob(2) == pytest.approx(0.86, abs=0.05)
        assert system.get_content("NbTickets").get_prob(3) == pytest.approx(0.125, abs=0.05)
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "Confirm(NbTickets,3)"
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Confirm(NbTickets,2)"
        assert system.get_content("current_step").get_prob("NbTickets") == pytest.approx(1.0, abs=0.01)
        u_u.clear()
        u_u["yes thank you"] = 0.75
        u_u["yes mind you"] = 0.15
        system.add_user_input(u_u)
        assert len(system.get_content("a_u").get_values()) == pytest.approx(2, abs=0.01)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(1.0, abs=0.05)
        assert system.get_content("NbTickets").get_prob(2) == pytest.approx(1.0, abs=0.05)
        assert system.get_content("NbTickets").get_prob(3) == pytest.approx(0.0, abs=0.05)
        assert str(system.get_content("a_m-prev").to_discrete().get_best()) == "Confirm(NbTickets,2)"
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Ground(NbTickets,2)"
        assert system.get_content("current_step").get_prob("LastConfirm") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("u_m").get_best()).find("Shall I confirm") != -1
        assert str(system.get_content("u_m").get_best()).find("358 EUR") != -1
        u_u.clear()
        u_u["err yes"] = 0.2
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(0.726, abs=0.01)
        assert system.get_content("current_step").get_prob("LastConfirm") == pytest.approx(1.0, abs=0.01)
        u_u.clear()
        u_u["yes please confirm"] = 0.5
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Confirm]") == pytest.approx(0.934, abs=0.01)
        assert system.get_content("current_step").get_prob("Final") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("a_m").to_discrete().get_best()) == "Book"
        assert str(system.get_content("u_m").get_best()).find("additional tickets?") != -1
        u_u.clear()
        u_u["thanks but no thanks"] = 0.7
        system.add_user_input(u_u)
        assert system.get_content("a_u").get_prob("[Disconfirm]") == pytest.approx(0.97, abs=0.01)
        assert system.get_content("current_step").get_prob("Close") == pytest.approx(1.0, abs=0.01)
        assert str(system.get_content("u_m").get_best()).find("welcome back!") != -1

        assert sorted(system.get_state().get_chance_node_ids()) == ["Date", "Departure", "Destination", "NbTickets", "ReturnDate", "TotalCost", "a_m", "a_m-prev", "a_u", "current_step", "u_m", "u_u"]
        assert len(system.get_content(["Date", "Departure", "Destination", "NbTickets", "ReturnDate", "TotalCost"]).to_discrete().get_values()) == 1
        assert system.get_content(["Date", "Departure", "Destination", "NbTickets", "ReturnDate", "TotalCost"]).to_discrete().get_prob(
            Assignment([
                Assignment("Date", "May 24"),
                Assignment("Departure", "Trondheim"),
                Assignment("Destination", "Bergen"),
                Assignment("NbTickets", 2.),
                Assignment("ReturnDate", "NoReturn"),
                Assignment("TotalCost", 358.)
            ])
        ) == pytest.approx(1.0, abs=0.01)