kopia lustrzana https://github.com/jointakahe/takahe
70 wiersze
1.6 KiB
Python
70 wiersze
1.6 KiB
Python
import pytest
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from stator.graph import State, StateGraph
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def test_declare():
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"""
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Tests a basic graph declaration and various kinds of handler
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lookups.
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"""
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class TestGraph(StateGraph):
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initial = State(try_interval=3600)
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second = State(try_interval=1)
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third = State()
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initial.transitions_to(second)
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second.transitions_to(third)
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@classmethod
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def handle_initial(cls):
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pass
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@classmethod
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def handle_second(cls):
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pass
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assert TestGraph.initial_state == TestGraph.initial
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assert TestGraph.terminal_states == {TestGraph.third}
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assert TestGraph.initial.handler == TestGraph.handle_initial
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assert TestGraph.initial.try_interval == 3600
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assert TestGraph.second.handler == TestGraph.handle_second
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assert TestGraph.second.try_interval == 1
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def test_bad_declarations():
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"""
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Tests that you can't declare an invalid graph.
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"""
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# More than one initial state
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with pytest.raises(ValueError):
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class TestGraph2(StateGraph):
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initial = State()
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initial2 = State()
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# No initial states
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with pytest.raises(ValueError):
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class TestGraph3(StateGraph):
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loop = State()
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loop2 = State()
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loop.transitions_to(loop2)
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loop2.transitions_to(loop)
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def test_state():
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"""
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Tests basic values of the State class
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"""
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class TestGraph(StateGraph):
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initial = State()
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assert "initial" == TestGraph.initial
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assert TestGraph.initial == "initial"
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assert TestGraph.initial == TestGraph.initial
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