def test_get_node_source_f_of_t(self):
"""Test that calling the NodeIOController for a f_of_t->xx connection
doesn't ask for a SpiNNaker sorce and instead returns the value source
that was associated with the Node.
"""
with nengo.Network() as net:
a = nengo.Node(lambda t: t)
b = nengo.Ensemble(100, 1)
a_b = nengo.Connection(a, b)
# Mark the Node as being a function of time
add_spinnaker_params(net.config)
net.config[a].function_of_time = True
# Create a model and build the Node
model = Model()
model.config = net.config
nioc = NodeIOController()
nioc.build_node(model, a)
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
spec = nioc.get_node_source(model, a_b)
assert spec.target.obj is model.object_operators[a]
assert spec.target.port is OutputPort.standard
# Assert this _didn't_ call `get_spinnaker_source_for_node`
assert not gssfn.called
# There should be nothing in the host network
assert nioc.host_network.all_nodes == list()
assert nioc.host_network.all_connections == list()
def test_build_node_function_of_time(self, period):
"""Test that building a function of time Node creates a new operator.
"""
with nengo.Network() as net:
a = nengo.Node(lambda t: [t, t**2], size_in=0)
# Mark the Node as a function of time
add_spinnaker_params(net.config)
net.config[a].function_of_time = True
if period is not None:
net.config[a].function_of_time_period = period
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that this added a new operator to the model
assert model.object_operators[a].function is a.output
if period is not None:
assert model.object_operators[a].period == period
else:
assert model.object_operators[a].period is None
assert model.extra_operators == list()
def test_get_node_source_f_of_t(self):
"""Test that calling the NodeIOController for a f_of_t->xx connection
doesn't ask for a SpiNNaker sorce and instead returns the value source
that was associated with the Node.
"""
with nengo.Network() as net:
a = nengo.Node(lambda t: t)
b = nengo.Ensemble(100, 1)
a_b = nengo.Connection(a, b)
# Mark the Node as being a function of time
add_spinnaker_params(net.config)
net.config[a].function_of_time = True
# Create a model and build the Node
model = Model()
model.config = net.config
nioc = NodeIOController()
nioc.build_node(model, a)
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
spec = nioc.get_node_source(model, a_b)
assert spec.target.obj is model.object_operators[a]
assert spec.target.port is OutputPort.standard
# Assert this _didn't_ call `get_spinnaker_source_for_node`
assert not gssfn.called
# There should be nothing in the host network
assert nioc.host_network.all_nodes == list()
assert nioc.host_network.all_connections == list()
def test_build_node_function_of_time(self, period):
"""Test that building a function of time Node creates a new operator.
"""
with nengo.Network() as net:
a = nengo.Node(lambda t: [t, t**2], size_in=0)
# Mark the Node as a function of time
add_spinnaker_params(net.config)
net.config[a].function_of_time = True
if period is not None:
net.config[a].function_of_time_period = period
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that this added a new operator to the model
assert model.object_operators[a].function is a.output
if period is not None:
assert model.object_operators[a].period == period
else:
assert model.object_operators[a].period is None
assert model.extra_operators == list()
def test_build_node_function_of_time_off(self, recwarn):
"""Test that building a function of time Node is exactly the same as
building a regular Node if function of time Nodes are disabled (but
that a warning is raised).
"""
with nengo.Network() as net:
a = nengo.Node(lambda t: t, size_in=0, size_out=1, label="Stim")
# Mark the Node as a function of time
add_spinnaker_params(net.config)
net.config[a].function_of_time = True
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController(function_of_time_nodes=False)
nioc.build_node(model, a)
# Assert that no new operators were created
assert model.object_operators == dict()
assert model.extra_operators == list()
# This should have raised a warning
w = recwarn.pop()
assert "disabled" in str(w.message)
assert "Stim" in str(w.message)
def test_build_node(self):
"""Test that building a Node does nothing.
"""
with nengo.Network() as net:
a = nengo.Node(lambda t, x: x**2, size_in=3, size_out=3)
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that no new operators were created
assert model.object_operators == dict()
assert model.extra_operators == list()
def test_build_node(self):
"""Test that building a Node does nothing.
"""
with nengo.Network() as net:
a = nengo.Node(lambda t, x: x**2, size_in=3, size_out=3)
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that no new operators were created
assert model.object_operators == dict()
assert model.extra_operators == list()
def test_passthrough_nodes_with_other_nodes(self):
"""Test the handling of passthrough when other Nodes are present."""
with nengo.Network() as net:
a = nengo.Node(lambda t: t, size_in=0, size_out=1)
b = nengo.Node(None, size_in=1, label="Passthrough Node")
c = nengo.Node(lambda t, x: None, size_in=1, size_out=0)
a_b = nengo.Connection(a, b)
b_c = nengo.Connection(b, c)
# Create a model and build the Nodes
model = Model()
model.config = net.config
nioc = NodeIOController()
nioc.build_node(model, a)
nioc.build_node(model, b)
nioc.build_node(model, c)
# Check the passthrough Node resulted in a new operator but that the
# others didn't
assert a not in model.object_operators
assert b in model.object_operators
assert c not in model.object_operators
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
spec = nioc.get_node_source(model, b_c)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is OutputPort.standard
# Get the sink and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_sink_for_node"):
assert nioc.get_node_sink(model, b_c) is not None
assert c in nioc._input_nodes
# Get the sink and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_sink_for_node") as gssfn:
spec = nioc.get_node_sink(model, a_b)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is InputPort.standard
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
assert nioc.get_node_source(model, a_b) is not None
assert a in nioc._output_nodes
def test_passthrough_nodes_with_other_nodes(self):
"""Test the handling of passthrough when other Nodes are present."""
with nengo.Network() as net:
a = nengo.Node(lambda t: t, size_in=0, size_out=1)
b = nengo.Node(None, size_in=1, label="Passthrough Node")
c = nengo.Node(lambda t, x: None, size_in=1, size_out=0)
a_b = nengo.Connection(a, b)
b_c = nengo.Connection(b, c)
# Create a model and build the Nodes
model = Model()
model.config = net.config
nioc = NodeIOController()
nioc.build_node(model, a)
nioc.build_node(model, b)
nioc.build_node(model, c)
# Check the passthrough Node resulted in a new operator but that the
# others didn't
assert a not in model.object_operators
assert b in model.object_operators
assert c not in model.object_operators
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
spec = nioc.get_node_source(model, b_c)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is OutputPort.standard
# Get the sink and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_sink_for_node"):
assert nioc.get_node_sink(model, b_c) is not None
assert c in nioc._input_nodes
# Get the sink and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_sink_for_node") as gssfn:
spec = nioc.get_node_sink(model, a_b)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is InputPort.standard
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
assert nioc.get_node_source(model, a_b) is not None
assert a in nioc._output_nodes
def test_passthrough_nodes(self, width):
"""Test the handling of passthrough Nodes."""
with nengo.Network() as net:
a = nengo.Ensemble(100, width)
b = nengo.Node(None, size_in=width, label="Passthrough Node")
c = nengo.Ensemble(100, width)
a_b = nengo.Connection(a, b)
b_c = nengo.Connection(b, c)
# Create a model and build the Node
model = Model()
model.config = net.config
nioc = NodeIOController()
nioc.build_node(model, b)
# Check the passthrough Node resulted in a new operator
assert model.object_operators[b].size_in == b.size_in
assert model.object_operators[b].transmission_delay == 1
assert model.object_operators[b].interpacket_pause == 1
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
spec = nioc.get_node_source(model, b_c)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is OutputPort.standard
# Assert this _didn't_ call `get_spinnaker_source_for_node`
assert not gssfn.called
# Get the sink and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_sink_for_node") as gssfn:
spec = nioc.get_node_sink(model, a_b)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is InputPort.standard
# Assert this _didn't_ call `get_spinnaker_sink_for_node`
assert not gssfn.called
# There should be nothing in the host network
assert nioc.host_network.all_nodes == list()
assert nioc.host_network.all_connections == list()
def test_build_node_process_is_not_constant(self):
"""Test that building a Node with a process is not treated the same as
building a constant valued Node.
"""
with nengo.Network() as net:
a = nengo.Node(nengo.processes.Process())
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that this added a new operator to the model
assert model.object_operators[a].function is a.output
assert model.object_operators[a].period is None
assert model.extra_operators == list()
def test_build_node_constant_value_is_function_of_time(self):
"""Test that building a Node with a constant value is equivalent to
building a function of time Node.
"""
with nengo.Network() as net:
a = nengo.Node(np.array([0.5, 0.1]))
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that this added a new operator to the model
assert model.object_operators[a].function is a.output
assert model.object_operators[a].period is model.dt
assert model.extra_operators == list()
def test_build_node_process_is_not_constant(self):
"""Test that building a Node with a process is not treated the same as
building a constant valued Node.
"""
with nengo.Network() as net:
a = nengo.Node(nengo.processes.Process())
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that this added a new operator to the model
assert model.object_operators[a].function is a.output
assert model.object_operators[a].period is None
assert model.extra_operators == list()
def test_build_node_constant_value_is_function_of_time(self):
"""Test that building a Node with a constant value is equivalent to
building a function of time Node.
"""
with nengo.Network() as net:
a = nengo.Node(np.array([0.5, 0.1]))
# Create the model
model = Model()
model.config = net.config
# Build the Node
nioc = NodeIOController()
nioc.build_node(model, a)
# Assert that this added a new operator to the model
assert model.object_operators[a].function is a.output
assert model.object_operators[a].period is model.dt
assert model.extra_operators == list()
def test_passthrough_nodes(self):
"""Test the handling of passthrough Nodes."""
with nengo.Network() as net:
a = nengo.Ensemble(100, 1)
b = nengo.Node(size_in=1, label="Passthrough Node")
c = nengo.Ensemble(100, 1)
a_b = nengo.Connection(a, b)
b_c = nengo.Connection(b, c)
# Create a model and build the Node
model = Model()
model.config = net.config
nioc = NodeIOController()
nioc.build_node(model, b)
# Check the passthrough Node resulted in a new operator
assert isinstance(model.object_operators[b], PassthroughNode)
# Get the source and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_source_for_node") as gssfn:
spec = nioc.get_node_source(model, b_c)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is OutputPort.standard
# Assert this _didn't_ call `get_spinnaker_source_for_node`
assert not gssfn.called
# Get the sink and ensure that the appropriate object is returned
with mock.patch.object(nioc, "get_spinnaker_sink_for_node") as gssfn:
spec = nioc.get_node_sink(model, a_b)
assert spec.target.obj is model.object_operators[b]
assert spec.target.port is InputPort.standard
# Assert this _didn't_ call `get_spinnaker_sink_for_node`
assert not gssfn.called
# There should be nothing in the host network
assert nioc.host_network.all_nodes == list()
assert nioc.host_network.all_connections == list()
