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from b_asic.core_operations import (
Addition,
ConstantMultiplication,
SymmetricTwoportAdaptor,
)
from b_asic.sfg_generators import (
direct_form_fir,
transposed_direct_form_fir,
wdf_allpass,
)
from b_asic.special_operations import Delay
def test_wdf_allpass():
sfg = wdf_allpass([0.3, 0.5, 0.7])
assert (
len(
[
comp
for comp in sfg.components
if isinstance(comp, SymmetricTwoportAdaptor)
]
)
== 3
)
sfg = wdf_allpass([0.3, 0.5, 0.7, 0.9])
assert (
len(
[
comp
for comp in sfg.components
if isinstance(comp, SymmetricTwoportAdaptor)
]
)
== 4
)
def test_direct_form_fir():
sfg = direct_form_fir([0.3, 0.5, 0.7])
assert (
len(
[
comp
for comp in sfg.components
if isinstance(comp, ConstantMultiplication)
]
)
== 3
)
assert (
len([comp for comp in sfg.components if isinstance(comp, Addition)])
== 2
)
assert (
len([comp for comp in sfg.components if isinstance(comp, Delay)]) == 2
)
sfg = direct_form_fir(
(0.3, 0.4, 0.5, 0.6, 0.3),
mult_properties={'latency': 2, 'execution_time': 1},
add_properties={'latency': 1, 'execution_time': 1},
)
assert sfg.critical_path() == 6
def test_transposed_direct_form_fir():
sfg = transposed_direct_form_fir([0.3, 0.5, 0.7])
assert (
len(
[
comp
for comp in sfg.components
if isinstance(comp, ConstantMultiplication)
]
)
== 3
)
assert (
len([comp for comp in sfg.components if isinstance(comp, Addition)])
== 2
)
assert (
len([comp for comp in sfg.components if isinstance(comp, Delay)]) == 2
)
sfg = transposed_direct_form_fir(
(0.3, 0.4, 0.5, 0.6, 0.3),
mult_properties={'latency': 2, 'execution_time': 1},
add_properties={'latency': 1, 'execution_time': 1},
)
assert sfg.critical_path() == 3