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Ivar Härnqvist
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import pytest
from b_asic import SFG, Signal, Input, Output, Constant, Addition, Multiplication
class TestConstructor:
def test_direct_input_to_output_sfg_construction(self):
in1 = Input("IN1")
out1 = Output(None, "OUT1")
out1.input(0).connect(in1, "S1")
sfg = SFG(inputs = [in1], outputs = [out1]) # in1 ---s1---> out1
assert len(list(sfg.components)) == 3
assert len(list(sfg.operations)) == 2
assert sfg.input_count == 1
assert sfg.output_count == 1
def test_same_signal_input_and_output_sfg_construction(self):
add1 = Addition(None, None, "ADD1")
add2 = Addition(None, None, "ADD2")
s1 = add2.input(0).connect(add1, "S1")
sfg = SFG(input_signals = [s1], output_signals = [s1]) # in1 ---s1---> out1
assert len(list(sfg.components)) == 3
assert len(list(sfg.operations)) == 2
assert sfg.input_count == 1
assert sfg.output_count == 1
def test_outputs_construction(self, operation_tree):
sfg = SFG(outputs = [Output(operation_tree)])
assert len(list(sfg.components)) == 7
assert len(list(sfg.operations)) == 4
assert sfg.input_count == 0
assert sfg.output_count == 1
def test_signals_construction(self, operation_tree):
sfg = SFG(output_signals = [Signal(source = operation_tree.output(0))])
assert len(list(sfg.components)) == 7
assert len(list(sfg.operations)) == 4
assert sfg.input_count == 0
assert sfg.output_count == 1
class TestEvaluation:
def test_evaluate_output(self, operation_tree):
sfg = SFG(outputs = [Output(operation_tree)])
assert sfg.evaluate_output(0, []) == 5
def test_evaluate_output_large(self, large_operation_tree):
sfg = SFG(outputs = [Output(large_operation_tree)])
assert sfg.evaluate_output(0, []) == 14
def test_evaluate_output_cycle(self, operation_graph_with_cycle):
sfg = SFG(outputs = [Output(operation_graph_with_cycle)])
with pytest.raises(Exception):
sfg.evaluate_output(0, [])
class TestDeepCopy:
def test_deep_copy_no_duplicates(self):
inp1 = Input("INP1")
inp2 = Input("INP2")
inp3 = Input("INP3")
add1 = Addition(inp1, inp2, "ADD1")
mul1 = Multiplication(add1, inp3, "MUL1")
out1 = Output(mul1, "OUT1")
mac_sfg = SFG(inputs = [inp1, inp2], outputs = [out1], name = "mac_sfg")
mac_sfg_new = mac_sfg()
assert mac_sfg.name == "mac_sfg"
assert mac_sfg_new.name == ""
for g_id, component in mac_sfg._components_by_id.items():
component_copy = mac_sfg_new.find_by_id(g_id)
assert component.name == component_copy.name
def test_deep_copy(self):
inp1 = Input("INP1")
inp2 = Input("INP2")
inp3 = Input("INP3")
add1 = Addition(None, None, "ADD1")
add2 = Addition(None, None, "ADD2")
mul1 = Multiplication(None, None, "MUL1")
out1 = Output(None, "OUT1")
add1.input(0).connect(inp1, "S1")
add1.input(1).connect(inp2, "S2")
add2.input(0).connect(add1, "S4")
add2.input(1).connect(inp3, "S3")
mul1.input(0).connect(add1, "S5")
mul1.input(1).connect(add2, "S6")
out1.input(0).connect(mul1, "S7")
mac_sfg = SFG(inputs = [inp1, inp2], outputs = [out1], id_number_offset = 100, name = "mac_sfg")
mac_sfg_new = mac_sfg(name = "mac_sfg2")
assert mac_sfg.name == "mac_sfg"
assert mac_sfg_new.name == "mac_sfg2"
assert mac_sfg.id_number_offset == 100
assert mac_sfg_new.id_number_offset == 100
for g_id, component in mac_sfg._components_by_id.items():
component_copy = mac_sfg_new.find_by_id(g_id)
assert component.name == component_copy.name
def test_deep_copy_with_new_sources(self):
inp1 = Input("INP1")
inp2 = Input("INP2")
inp3 = Input("INP3")
add1 = Addition(inp1, inp2, "ADD1")
mul1 = Multiplication(add1, inp3, "MUL1")
out1 = Output(mul1, "OUT1")
mac_sfg = SFG(inputs = [inp1, inp2], outputs = [out1], name = "mac_sfg")
a = Addition(Constant(3), Constant(5))
b = Constant(2)
mac_sfg_new = mac_sfg(a, b)
assert mac_sfg_new.input(0).signals[0].source.operation is a
assert mac_sfg_new.input(1).signals[0].source.operation is b
class TestComponents:
def test_advanced_components(self):
inp1 = Input("INP1")
inp2 = Input("INP2")
inp3 = Input("INP3")
add1 = Addition(None, None, "ADD1")
add2 = Addition(None, None, "ADD2")
mul1 = Multiplication(None, None, "MUL1")
out1 = Output(None, "OUT1")
add1.input(0).connect(inp1, "S1")
add1.input(1).connect(inp2, "S2")
add2.input(0).connect(add1, "S4")
add2.input(1).connect(inp3, "S3")
mul1.input(0).connect(add1, "S5")
mul1.input(1).connect(add2, "S6")
out1.input(0).connect(mul1, "S7")
mac_sfg = SFG(inputs = [inp1, inp2], outputs = [out1], name = "mac_sfg")
assert set([comp.name for comp in mac_sfg.components]) == {"INP1", "INP2", "INP3", "ADD1", "ADD2", "MUL1", "OUT1", "S1", "S2", "S3", "S4", "S5", "S6", "S7"}
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class TestReplaceComponents:
def test_replace_addition_by_id(self, operation_tree):
sfg = SFG(outputs=[Output(operation_tree)])
component_id = "add1"
sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
assert component_id not in sfg._components_by_id.keys()
assert "Multi" in sfg._components_by_name.keys()
def test_replace_addition_by_component(self, operation_tree):
sfg = SFG(outputs=[Output(operation_tree)])
component_id = "add1"
component = sfg.find_by_id(component_id)
sfg = sfg.replace_component(Multiplication(name="Multi"), _component=component)
assert component_id not in sfg._components_by_id.keys()
assert "Multi" in sfg._components_by_name.keys()
def test_replace_addition_large_tree(self, large_operation_tree):
sfg = SFG(outputs=[Output(large_operation_tree)])
component_id = "add3"
sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
assert "Multi" in sfg._components_by_name.keys()
assert component_id not in sfg._components_by_id.keys()
def test_replace_no_input_component(self, operation_tree):
sfg = SFG(outputs=[Output(operation_tree)])
component_id = "c1"
_const = sfg.find_by_id(component_id)
sfg = sfg.replace_component(Constant(1), _id=component_id)
assert _const is not sfg.find_by_id(component_id)
def test_no_match_on_replace(self, large_operation_tree):
sfg = SFG(outputs=[Output(large_operation_tree)])
component_id = "addd1"
try:
sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
except AssertionError:
assert True
else:
assert False
def test_not_equal_input(self, large_operation_tree):
sfg = SFG(outputs=[Output(large_operation_tree)])
component_id = "c1"
try:
sfg = sfg.replace_component(Multiplication(name="Multi"), _id=component_id)
except AssertionError:
assert True
else:
assert False