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import pytest
import numpy as np
from b_asic import SFG, Output, FastSimulation, Addition, Subtraction, Constant, Butterfly
class TestRunFor:
def test_with_lambdas_as_input(self, sfg_two_inputs_two_outputs):
simulation = FastSimulation(sfg_two_inputs_two_outputs, [lambda n: n + 3, lambda n: 1 + n * 2])
output = simulation.run_for(101, save_results = True)
assert output[0] == 304
assert output[1] == 505
assert simulation.results["0"][100] == 304
assert simulation.results["1"][100] == 505
assert simulation.results["in1"][0] == 3
assert simulation.results["in2"][0] == 1
assert simulation.results["add1"][0] == 4
assert simulation.results["add2"][0] == 5
assert simulation.results["0"][0] == 4
assert simulation.results["1"][0] == 5
assert simulation.results["in1"][1] == 4
assert simulation.results["in2"][1] == 3
assert simulation.results["add1"][1] == 7
assert simulation.results["add2"][1] == 10
assert simulation.results["0"][1] == 7
assert simulation.results["1"][1] == 10
assert simulation.results["in1"][2] == 5
assert simulation.results["in2"][2] == 5
assert simulation.results["add1"][2] == 10
assert simulation.results["add2"][2] == 15
assert simulation.results["0"][2] == 10
assert simulation.results["1"][2] == 15
assert simulation.results["in1"][3] == 6
assert simulation.results["in2"][3] == 7
assert simulation.results["add1"][3] == 13
assert simulation.results["add2"][3] == 20
assert simulation.results["0"][3] == 13
assert simulation.results["1"][3] == 20
def test_with_numpy_arrays_as_input(self, sfg_two_inputs_two_outputs):
input0 = np.array([5, 9, 25, -5, 7])
input1 = np.array([7, 3, 3, 54, 2])
simulation = FastSimulation(sfg_two_inputs_two_outputs, [input0, input1])
output = simulation.run_for(5, save_results = True)
assert output[0] == 9
assert output[1] == 11
assert isinstance(simulation.results["in1"], np.ndarray)
assert isinstance(simulation.results["in2"], np.ndarray)
assert isinstance(simulation.results["add1"], np.ndarray)
assert isinstance(simulation.results["add2"], np.ndarray)
assert isinstance(simulation.results["0"], np.ndarray)
assert isinstance(simulation.results["1"], np.ndarray)
assert simulation.results["in1"][0] == 5
assert simulation.results["in2"][0] == 7
assert simulation.results["add1"][0] == 12
assert simulation.results["add2"][0] == 19
assert simulation.results["0"][0] == 12
assert simulation.results["1"][0] == 19
assert simulation.results["in1"][1] == 9
assert simulation.results["in2"][1] == 3
assert simulation.results["add1"][1] == 12
assert simulation.results["add2"][1] == 15
assert simulation.results["0"][1] == 12
assert simulation.results["1"][1] == 15
assert simulation.results["in1"][2] == 25
assert simulation.results["in2"][2] == 3
assert simulation.results["add1"][2] == 28
assert simulation.results["add2"][2] == 31
assert simulation.results["0"][2] == 28
assert simulation.results["1"][2] == 31
assert simulation.results["in1"][3] == -5
assert simulation.results["in2"][3] == 54
assert simulation.results["add1"][3] == 49
assert simulation.results["add2"][3] == 103
assert simulation.results["0"][3] == 49
assert simulation.results["1"][3] == 103
assert simulation.results["0"][4] == 9
assert simulation.results["1"][4] == 11
def test_with_numpy_array_overflow(self, sfg_two_inputs_two_outputs):
input0 = np.array([5, 9, 25, -5, 7])
input1 = np.array([7, 3, 3, 54, 2])
simulation = FastSimulation(sfg_two_inputs_two_outputs, [input0, input1])
simulation.run_for(5)
with pytest.raises(IndexError):
simulation.step()
def test_run_whole_numpy_array(self, sfg_two_inputs_two_outputs):
input0 = np.array([5, 9, 25, -5, 7])
input1 = np.array([7, 3, 3, 54, 2])
simulation = FastSimulation(sfg_two_inputs_two_outputs, [input0, input1])
simulation.run()
assert len(simulation.results["0"]) == 5
assert len(simulation.results["1"]) == 5
with pytest.raises(IndexError):
simulation.step()
def test_delay(self, sfg_delay):
simulation = FastSimulation(sfg_delay)
simulation.set_input(0, [5, -2, 25, -6, 7, 0])
simulation.run_for(6, save_results = True)
assert simulation.results["0"][0] == 0
assert simulation.results["0"][1] == 5
assert simulation.results["0"][2] == -2
assert simulation.results["0"][3] == 25
assert simulation.results["0"][4] == -6
assert simulation.results["0"][5] == 7
class TestRun:
def test_save_results(self, sfg_two_inputs_two_outputs):
simulation = FastSimulation(sfg_two_inputs_two_outputs, [2, 3])
assert not simulation.results
simulation.run_for(10, save_results = False)
assert not simulation.results
simulation.run_for(10)
assert len(simulation.results["0"]) == 10
assert len(simulation.results["1"]) == 10
simulation.run_for(10, save_results = True)
assert len(simulation.results["0"]) == 20
assert len(simulation.results["1"]) == 20
simulation.run_for(10, save_results = False)
assert len(simulation.results["0"]) == 20
assert len(simulation.results["1"]) == 20
simulation.run_for(13, save_results = True)
assert len(simulation.results["0"]) == 33
assert len(simulation.results["1"]) == 33
simulation.step(save_results = False)
assert len(simulation.results["0"]) == 33
assert len(simulation.results["1"]) == 33
simulation.step()
assert len(simulation.results["0"]) == 34
assert len(simulation.results["1"]) == 34
simulation.clear_results()
assert not simulation.results
def test_nested(self, sfg_nested):
input0 = np.array([5, 9])
input1 = np.array([7, 3])
simulation = FastSimulation(sfg_nested, [input0, input1])
output0 = simulation.step()
output1 = simulation.step()
assert output0[0] == 11405
assert output1[0] == 4221
def test_accumulator(self, sfg_accumulator):
data_in = np.array([5, -2, 25, -6, 7, 0])
reset = np.array([0, 0, 0, 1, 0, 0])
simulation = FastSimulation(sfg_accumulator, [data_in, reset])
output0 = simulation.step()
output1 = simulation.step()
output2 = simulation.step()
output3 = simulation.step()
output4 = simulation.step()
output5 = simulation.step()
assert output0[0] == 0
assert output1[0] == 5
assert output2[0] == 3
assert output3[0] == 28
assert output4[0] == 0
assert output5[0] == 7
def test_simple_accumulator(self, sfg_simple_accumulator):
data_in = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
simulation = FastSimulation(sfg_simple_accumulator, [data_in])
simulation.run()
assert list(simulation.results["0"]) == [0, 1, 3, 6, 10, 15, 21, 28, 36, 45]
def test_simple_filter(self, sfg_simple_filter):
input0 = np.array([1, 2, 3, 4, 5])
simulation = FastSimulation(sfg_simple_filter, [input0])
simulation.run_for(len(input0), save_results = True)
assert all(simulation.results["0"] == np.array([0, 1.0, 2.5, 4.25, 6.125]))
def test_custom_operation(self, sfg_custom_operation):
simulation = FastSimulation(sfg_custom_operation, [lambda n: n + 1])
simulation.run_for(5)
assert all(simulation.results["0"] == np.array([2, 4, 6, 8, 10]))
assert all(simulation.results["1"] == np.array([2, 4, 8, 16, 32]))
class TestLarge:
def test_1k_additions(self):
prev_op = Addition(Constant(1), Constant(1))
for _ in range(999):
prev_op = Addition(prev_op, Constant(2))
sfg = SFG(outputs=[Output(prev_op)])
simulation = FastSimulation(sfg, [])
assert simulation.step()[0] == 2000
def test_1k_subtractions(self):
prev_op = Subtraction(Constant(0), Constant(2))
for _ in range(999):
prev_op = Subtraction(prev_op, Constant(2))
sfg = SFG(outputs=[Output(prev_op)])
simulation = FastSimulation(sfg, [])
assert simulation.step()[0] == -2000
def test_1k_butterfly(self):
prev_op_add = Addition(Constant(1), Constant(1))
prev_op_sub = Subtraction(Constant(-1), Constant(1))
for _ in range(499):
prev_op_add = Addition(prev_op_add, Constant(2))
for _ in range(499):
prev_op_sub = Subtraction(prev_op_sub, Constant(2))
butterfly = Butterfly(prev_op_add, prev_op_sub)
sfg = SFG(outputs=[Output(butterfly.output(0)), Output(butterfly.output(1))])
simulation = FastSimulation(sfg, [])
assert list(simulation.step()) == [0, 2000]