mtl-aas/stl/test_boolean_eval.py
2017-11-14 10:50:25 -08:00

122 lines
4.3 KiB
Python

import hypothesis.strategies as st
import traces
from hypothesis import given, settings, Verbosity, Phase
from pytest import raises
import stl
import stl.boolean_eval
import stl.fastboolean_eval
from stl.hypothesis import SignalTemporalLogicStrategy
"""
TODO: property based test that fasteval should be the same as slow
TODO: property based test that x |= phi == ~(x |= ~phi)
TODO: property based test that ~~phi == phi
TODO: property based test that ~~~phi == ~phi
TODO: property based test that ~phi => phi
TODO: property based test that phi => phi
TODO: property based test that phi <=> phi
TODO: property based test that phi & psi => phi
TODO: property based test that psi => phi | psi
TODO: property based test that (True U psi) => F(psi)
TODO: property based test that G(psi) = ~F(~psi)
TODO: Automatically generate input time series.
"""
x = {
"x":
traces.TimeSeries([(0, 1), (0.1, 1), (0.2, 4)], domain=(0, 10)),
"y":
traces.TimeSeries([(0, 2), (0.1, 4), (0.2, 2)], domain=(0, 10)),
"AP1":
traces.TimeSeries([(0, True), (0.1, True), (0.2, False)], domain=(0, 10)),
"AP2":
traces.TimeSeries([(0, False), (0.2, True), (0.5, False)], domain=(0, 10)),
"AP3":
traces.TimeSeries([(0, True), (0.1, True), (0.3, False)], domain=(0, 10)),
"AP4":
traces.TimeSeries(
[(0, False), (0.1, False), (0.3, False)], domain=(0, 10)),
"AP5":
traces.TimeSeries([(0, False), (0.1, False), (0.3, True)], domain=(0, 10)),
}
@given(st.just(stl.ast.Next(stl.BOT) | stl.ast.Next(stl.TOP)))
def test_eval_smoke_tests(phi):
stl_eval9 = stl.boolean_eval.pointwise_sat(stl.ast.Next(phi))
stl_eval10 = stl.boolean_eval.pointwise_sat(~stl.ast.Next(phi))
assert stl_eval9(x, 0) != stl_eval10(x, 0)
phi4 = stl.parse('~(AP4)')
stl_eval11 = stl.boolean_eval.pointwise_sat(phi4)
assert stl_eval11(x, 0)
phi5 = stl.parse('G[0.1, 0.03](~(AP4))')
stl_eval12 = stl.boolean_eval.pointwise_sat(phi5)
assert stl_eval12(x, 0)
phi6 = stl.parse('G[0.1, 0.03](~(AP5))')
stl_eval13 = stl.boolean_eval.pointwise_sat(phi6)
assert stl_eval13(x, 0)
assert not stl_eval13(x, 0.4)
phi7 = stl.parse('G(~(AP4))')
stl_eval14 = stl.boolean_eval.pointwise_sat(phi7)
assert stl_eval14(x, 0)
phi8 = stl.parse('F(AP5)')
stl_eval15 = stl.boolean_eval.pointwise_sat(phi8)
assert stl_eval15(x, 0)
phi9 = stl.parse('(AP1) U (AP2)')
stl_eval16 = stl.boolean_eval.pointwise_sat(phi9)
assert stl_eval16(x, 0)
phi10 = stl.parse('(AP2) U (AP2)')
stl_eval17 = stl.boolean_eval.pointwise_sat(phi10)
assert not stl_eval17(x, 0)
with raises(NotImplementedError):
stl.boolean_eval.eval_stl(None, None)
@given(SignalTemporalLogicStrategy)
@settings(
max_shrinks=0,
verbosity=Verbosity.verbose,
perform_health_check=False,
phases=[Phase.generate])
def test_temporal_identities(phi):
stl_eval = stl.boolean_eval.pointwise_sat(phi)
stl_eval2 = stl.boolean_eval.pointwise_sat(~phi)
assert stl_eval2(x, 0) == (not stl_eval(x, 0))
stl_eval3 = stl.boolean_eval.pointwise_sat(~~phi)
assert stl_eval3(x, 0) == stl_eval(x, 0)
stl_eval4 = stl.boolean_eval.pointwise_sat(phi & phi)
assert stl_eval4(x, 0) == stl_eval(x, 0)
stl_eval5 = stl.boolean_eval.pointwise_sat(phi & ~phi)
assert not stl_eval5(x, 0)
stl_eval6 = stl.boolean_eval.pointwise_sat(phi | ~phi)
assert stl_eval6(x, 0)
stl_eval7 = stl.boolean_eval.pointwise_sat(stl.ast.Until(stl.TOP, phi))
stl_eval8 = stl.boolean_eval.pointwise_sat(stl.env(phi))
assert stl_eval7(x, 0) == stl_eval8(x, 0)
@given(st.just(stl.BOT))
def test_fastboolean_equiv(phi):
stl_eval = stl.fastboolean_eval.pointwise_sat(stl.alw(phi, lo=0, hi=4))
stl_eval2 = stl.fastboolean_eval.pointwise_sat(~stl.env(~phi, lo=0, hi=4))
assert stl_eval2(x, 0) == stl_eval(x, 0)
stl_eval3 = stl.fastboolean_eval.pointwise_sat(~stl.alw(~phi, lo=0, hi=4))
stl_eval4 = stl.fastboolean_eval.pointwise_sat(stl.env(phi, lo=0, hi=4))
assert stl_eval4(x, 0) == stl_eval3(x, 0)
def test_implicit_validity_domain_rigid():
phi = stl.parse('G[0, a?](x > b?)')
vals = {'a?': 3, 'b?': 20}
stl_eval = stl.pointwise_sat(phi.set_params(vals))
oracle, order = stl.utils.implicit_validity_domain(phi, x)
assert stl_eval(x, 0) == oracle([vals.get(k) for k in order])