def test_load_graph_to_empty():
plumb0 = test.two_valve_setup(0.5, 0.2, 10, utils.CLOSED, 0.5, 0.2, 10,
utils.CLOSED)
pressures = {3: (100, False)}
default_states = {'valve1': 'closed', 'valve2': 'open'}
plumb = top.PlumbingEngine()
plumb.load_graph(plumb0.component_dict, plumb0.mapping, pressures,
default_states)
assert plumb.time_res == int(
utils.s_to_micros(0.2) / utils.DEFAULT_RESOLUTION_SCALE)
assert plumb.edges() == [(1, 2, 'valve1.A1', {
'FC': utils.teq_to_FC(utils.s_to_micros(10))
}), (2, 1, 'valve1.A2', {
'FC': 0
}), (2, 3, 'valve2.B1', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.5))
}), (3, 2, 'valve2.B2', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.2))
})]
assert plumb.nodes() == [(1, {
'body': top.GenericNode(0)
}), (2, {
'body': top.GenericNode(0)
}), (3, {
'body': top.GenericNode(100)
})]
assert plumb.current_state('valve1') == 'closed'
assert plumb.current_state('valve2') == 'open'
def test_reset_keep_component():
plumb = test.two_valve_setup(0.5, 0.2, 10, utils.CLOSED, 0.5, 0.2, 10,
utils.CLOSED)
pc = test.create_component(0, 0, 0, 1, 'valve3', 'C')
mapping = {1: 3, 2: 4}
plumb.add_component(pc, mapping, 'closed', {4: (50, False)})
plumb.remove_component('valve2')
plumb.reset()
assert plumb.time == 0
assert plumb.is_valid()
assert plumb.time_res == int(
utils.s_to_micros(0.2) / utils.DEFAULT_RESOLUTION_SCALE)
assert plumb.edges() == [(1, 2, 'valve1.A1', {
'FC': utils.teq_to_FC(utils.s_to_micros(10))
}), (2, 1, 'valve1.A2', {
'FC': 0
}), (3, 4, 'valve3.C1', {
'FC': utils.teq_to_FC(0)
}), (4, 3, 'valve3.C2', {
'FC': utils.teq_to_FC(utils.s_to_micros(1))
})]
assert plumb.nodes() == [(1, {
'body': top.GenericNode(0)
}), (2, {
'body': top.GenericNode(0)
}), (3, {
'body': top.GenericNode(100)
}), (4, {
'body': top.GenericNode(0)
})]
assert plumb.current_state('valve1') == 'closed'
assert plumb.current_state('valve3') == 'closed'
def test_reverse_orientation():
plumb = test.two_valve_setup(0.5, 0.2, 10, utils.CLOSED, 0.5, 0.2, 10,
utils.CLOSED)
plumb.reverse_orientation('valve1')
assert plumb.is_valid()
assert plumb.time_res == int(
utils.s_to_micros(0.2) / utils.DEFAULT_RESOLUTION_SCALE)
assert plumb.edges() == [(1, 2, 'valve1.A1', {
'FC': 0
}), (2, 1, 'valve1.A2', {
'FC': utils.teq_to_FC(utils.s_to_micros(10))
}), (2, 3, 'valve2.B1', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.5))
}), (3, 2, 'valve2.B2', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.2))
})]
assert plumb.nodes() == [
(1, {
'body': top.GenericNode(0)
}),
(2, {
'body': top.GenericNode(0)
}),
(3, {
'body': top.GenericNode(100)
}),
]
assert plumb.current_state('valve1') == 'closed'
assert plumb.current_state('valve2') == 'open'
def test_set_pressure():
plumb = test.two_valve_setup(0.5, 0.2, 10, utils.CLOSED, 0.5, 0.2, 10,
utils.CLOSED)
pc = test.create_component(0, 0, 0, 1, 'valve3', 'C')
mapping = {1: 3, 2: 4}
plumb.add_component(pc, mapping, 'closed', {4: (50, False)})
plumb.set_pressure(1, 200)
plumb.set_pressure(2, 7000)
assert plumb.nodes() == [(1, {
'body': top.GenericNode(200)
}), (2, {
'body': top.GenericNode(7000)
}), (3, {
'body': top.GenericNode(100)
}), (4, {
'body': top.GenericNode(50)
})]
plumb.set_pressure(4, 10)
plumb.set_pressure(1, 0)
assert plumb.nodes() == [(1, {
'body': top.GenericNode(0)
}), (2, {
'body': top.GenericNode(7000)
}), (3, {
'body': top.GenericNode(100)
}), (4, {
'body': top.GenericNode(10)
})]
def test_remove_errors_wrong_component_name():
wrong_component_name = 'potato'
pc1 = test.create_component(0, 0, 0, 0, 'valve1', 'A')
pc2 = test.create_component(0, 0, 0, 0, 'valve2', 'B')
component_mapping = {'valve1': {1: 1, 2: 2}, 'valve2': {1: 2, 2: 3}}
pressures = {3: (100, False)}
default_states = {'valve1': 'closed', 'valve2': 'open'}
plumb = top.PlumbingEngine({
wrong_component_name: pc1,
'valve2': pc2
}, component_mapping, pressures, default_states)
assert not plumb.is_valid()
assert len(plumb.errors()) == 2
error1 = invalid.InvalidComponentName(
f"Component with name '{wrong_component_name}' not found in mapping dict.",
wrong_component_name)
error2 = invalid.InvalidComponentName(
f"Component '{wrong_component_name}' state not found in initial states dict.",
wrong_component_name)
assert error1 in plumb.errors()
assert error2 in plumb.errors()
plumb.remove_component(wrong_component_name)
assert plumb.is_valid()
assert plumb.time_res == int(
utils.s_to_micros(0.2) / utils.DEFAULT_RESOLUTION_SCALE)
assert plumb.edges() == [
(2, 3, 'valve2.B1', {
'FC': utils.teq_to_FC(utils.s_to_micros(0))
}),
(3, 2, 'valve2.B2', {
'FC': utils.teq_to_FC(utils.s_to_micros(0))
}),
]
assert plumb.nodes() == [
(2, {
'body': top.GenericNode(0)
}),
(3, {
'body': top.GenericNode(100)
}),
]
assert plumb.current_state('valve2') == 'open'
def test_generic_equality():
pressure = 10
node = top.GenericNode(pressure, True)
same_node = top.GenericNode(pressure, True)
assert node == same_node
diff_pressure = top.GenericNode(0, True)
diff_fixed = top.GenericNode(pressure, False)
assert node != diff_pressure
assert node != diff_fixed
diff_type = top.AtmNode()
assert node != diff_type
def test_set_pressure_errors():
plumb = test.two_valve_setup(0.5, 0.2, 10, utils.CLOSED, 0.5, 0.2, 10,
utils.CLOSED)
pc = test.create_component(0, 0, 0, 1, 'valve3', 'C')
mapping = {1: 3, 2: 4}
plumb.add_component(pc, mapping, 'closed', {4: (50, False)})
pc_vent = test.create_component(0, 0, 0, 0, 'vent', 'D')
mapping_vent = {1: 4, 2: utils.ATM}
plumb.add_component(pc_vent, mapping_vent, 'closed')
negative_pressure = -20
not_a_number = 'potato'
with pytest.raises(exceptions.BadInputError) as err:
plumb.set_pressure(4, negative_pressure)
assert str(
err.value) == f"Negative pressure {negative_pressure} not allowed."
with pytest.raises(exceptions.BadInputError) as err:
plumb.set_pressure(4, not_a_number)
assert str(err.value) == f"Pressure {not_a_number} must be a number."
assert plumb.nodes() == [(1, {
'body': top.GenericNode(0)
}), (2, {
'body': top.GenericNode(0)
}), (3, {
'body': top.GenericNode(100)
}), (4, {
'body': top.GenericNode(50)
}), (utils.ATM, {
'body': top.AtmNode()
})]
nonexistent_node = 5
with pytest.raises(exceptions.BadInputError) as err:
plumb.set_pressure(nonexistent_node, 100)
assert str(err.value) == f"Node {nonexistent_node} not found in graph."
plumb.set_pressure(4, 100)
assert plumb.nodes() == [(1, {
'body': top.GenericNode(0)
}), (2, {
'body': top.GenericNode(0)
}), (3, {
'body': top.GenericNode(100)
}), (4, {
'body': top.GenericNode(100)
}), (utils.ATM, {
'body': top.AtmNode()
})]
with pytest.raises(exceptions.BadInputError) as err:
plumb.set_pressure(utils.ATM, 100)
assert str(
err.value) == f"Pressure for atmosphere node ({utils.ATM}) must be 0."
def test_remove_add_errors():
plumb = test.two_valve_setup(0.5, 0.2, 10, utils.CLOSED, 0.5, 0.2, 10,
utils.CLOSED)
name = 'valve3'
wrong_node = 3
right_node = 2
pc = test.create_component(0, 0, 0, 1, name, 'C')
mapping = {1: 3, wrong_node: 4}
with pytest.raises(exceptions.BadInputError) as err:
plumb.add_component(pc, mapping, 'closed', {4: (50, False)})
assert str(err.value) ==\
f"Component '{name}', node {right_node} not found in mapping dict."
plumb.remove_component(name)
assert plumb.is_valid()
assert plumb.time_res == int(
utils.s_to_micros(0.2) / utils.DEFAULT_RESOLUTION_SCALE)
assert plumb.edges() == [
(1, 2, 'valve1.A1', {
'FC': utils.teq_to_FC(utils.s_to_micros(10))
}),
(2, 1, 'valve1.A2', {
'FC': 0
}),
(2, 3, 'valve2.B1', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.5))
}),
(3, 2, 'valve2.B2', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.2))
}),
]
assert plumb.nodes() == [
(1, {
'body': top.GenericNode(0)
}),
(2, {
'body': top.GenericNode(0)
}),
(3, {
'body': top.GenericNode(100)
}),
]
assert plumb.current_state('valve1') == 'closed'
assert plumb.current_state('valve2') == 'open'
def test_list_functions():
pc1 = test.create_component(0.5, 0.2, 10, utils.CLOSED, 'valve1', 'A')
pc2 = test.create_component(0.5, 0.2, 10, utils.CLOSED, 'valve2', 'B')
component_mapping = {
'valve1': {
1: 1,
2: 2
},
'valve2': {
1: 2,
2: 3
}
}
negative_pressure = -50
pressures = {3: (negative_pressure, False)}
default_states = {'valve1': 'closed', 'valve2': 'open'}
plumb = top.PlumbingEngine(
{'valve1': pc1, 'valve2': pc2}, component_mapping, pressures, default_states)
assert plumb.edges() == [
(1, 2, 'valve1.A1', {'FC': utils.teq_to_FC(utils.s_to_micros(10))}),
(2, 1, 'valve1.A2', {'FC': 0}),
(2, 3, 'valve2.B1', {'FC': utils.teq_to_FC(utils.s_to_micros(0.5))}),
(3, 2, 'valve2.B2', {'FC': utils.teq_to_FC(utils.s_to_micros(0.2))})
]
assert plumb.edges(data=False) == [
(1, 2, 'valve1.A1'),
(2, 1, 'valve1.A2'),
(2, 3, 'valve2.B1'),
(3, 2, 'valve2.B2')
]
# Pressure at node 3 will be 0, since the provided one was invalid
assert plumb.nodes() == [
(1, {'body': top.GenericNode(0)}),
(2, {'body': top.GenericNode(0)}),
(3, {'body': top.GenericNode(0)}),
]
assert plumb.nodes(data=False) == [1, 2, 3]
assert plumb.errors() == {
invalid.InvalidNodePressure(f"Negative pressure {negative_pressure} not allowed.", 3)
}
def test_add_remove():
old_lowest_teq = 0.2
plumb = test.two_valve_setup(0.5, old_lowest_teq, 10, utils.CLOSED, 0.5,
old_lowest_teq, 10, utils.CLOSED)
new_lowest_teq = 0.1
pc = test.create_component(0, 0, 0, new_lowest_teq, 'valve3', 'C')
mapping = {1: 3, 2: 4}
plumb.add_component(pc, mapping, 'closed', {4: (50, False)})
assert plumb.time_res ==\
int(utils.s_to_micros(new_lowest_teq) / utils.DEFAULT_RESOLUTION_SCALE)
plumb.remove_component('valve3')
assert plumb.is_valid()
assert plumb.time_res ==\
int(utils.s_to_micros(old_lowest_teq) / utils.DEFAULT_RESOLUTION_SCALE)
assert plumb.edges() == [
(1, 2, 'valve1.A1', {
'FC': utils.teq_to_FC(utils.s_to_micros(10))
}),
(2, 1, 'valve1.A2', {
'FC': 0
}),
(2, 3, 'valve2.B1', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.5))
}),
(3, 2, 'valve2.B2', {
'FC': utils.teq_to_FC(utils.s_to_micros(0.2))
}),
]
assert plumb.nodes() == [
(1, {
'body': top.GenericNode(0)
}),
(2, {
'body': top.GenericNode(0)
}),
(3, {
'body': top.GenericNode(100)
}),
]
assert plumb.current_state('valve1') == 'closed'
assert plumb.current_state('valve2') == 'open'
def test_atm_equality():
atm_node = top.AtmNode()
another_atm_node = top.AtmNode()
assert atm_node == another_atm_node
almost_atm_node = top.GenericNode(0, True)
assert atm_node != almost_atm_node
def test_add_to_empty():
plumb = top.PlumbingEngine()
pc = test.create_component(2, utils.CLOSED, 0, 0, 'valve', 'A')
mapping = {1: 1, 2: 2}
plumb.add_component(pc, mapping, 'open', {1: (20, False)})
assert plumb.is_valid()
assert plumb.time_res == utils.DEFAULT_TIME_RESOLUTION_MICROS
assert plumb.edges() == [(1, 2, 'valve.A1', {
'FC': utils.teq_to_FC(utils.s_to_micros(2))
}), (2, 1, 'valve.A2', {
'FC': 0
})]
assert plumb.nodes() == [(1, {
'body': top.GenericNode(20)
}), (2, {
'body': top.GenericNode(0)
})]
assert plumb.current_state('valve') == 'open'
def test_open_closed_valves():
plumb = test.two_valve_setup(0, 0, utils.CLOSED, utils.CLOSED, 0, 0,
utils.CLOSED, utils.CLOSED)
assert plumb.time_res == utils.DEFAULT_TIME_RESOLUTION_MICROS
assert plumb.edges() == [(1, 2, 'valve1.A1', {
'FC': 0
}), (2, 1, 'valve1.A2', {
'FC': 0
}), (2, 3, 'valve2.B1', {
'FC': utils.FC_MAX
}), (3, 2, 'valve2.B2', {
'FC': utils.FC_MAX
})]
assert plumb.nodes() == [(1, {
'body': top.GenericNode(0)
}), (2, {
'body': top.GenericNode(0)
}), (3, {
'body': top.GenericNode(100)
})]
assert plumb.current_state('valve1') == 'closed'
assert plumb.current_state('valve2') == 'open'
def test_generic_node():
node = top.GenericNode()
assert node.get_pressure() == 0
assert not node.get_fixed()
new_pressure = 100
node.update_pressure(new_pressure)
assert node.get_pressure() == new_pressure
assert not node.get_fixed()
node.update_fixed(True)
assert node.get_pressure() == new_pressure
assert node.get_fixed()
# just make sure this doesn't error
node.__str__()