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add test for moving on 0 robustness

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This commit is contained in:
Marcell Vazquez-Chanlatte 2016-10-10 00:04:10 -07:00
parent 5970c77cb9
commit 47967b462b
2 changed files with 8 additions and 8 deletions
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12
synth.py
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@ -1,3 +1,5 @@
import operator as op
from stl.utils import set_params, param_lens from stl.utils import set_params, param_lens
from stl.robustness import pointwise_robustness from stl.robustness import pointwise_robustness
@ -11,16 +13,12 @@ def binsearch(stleval, *, tol=1e-3, lo, hi, polarity):
elif not polarity and stleval(hi) > 0: elif not polarity and stleval(hi) > 0:
return hi return hi
test = op.le if polarity else op.gt
while hi - lo > tol: while hi - lo > tol:
mid = lo + (hi - lo) / 2 mid = lo + (hi - lo) / 2
r = stleval(mid) r = stleval(mid)
if not polarity: # swap direction lo, hi = (mid, hi) if test(r, 0) else (lo, mid)
r *= -1
if r < 0:
lo, hi = mid, hi
else:
lo, hi = lo, mid
# Want satisifiable formula # Want satisifiable formula
return hi if polarity else lo return hi if polarity else lo

4
test_synth.py
View file

@ -17,13 +17,15 @@ ex4 = ("G[0, b?](A < 0)", ("b?",), {"b?": (0.1, 5)},
{"b?": False}, {"b?": 0.1}) {"b?": False}, {"b?": 0.1})
ex5 = ("F[0, b?](A > 0)", ("b?",), {"b?": (0.1, 5)}, ex5 = ("F[0, b?](A > 0)", ("b?",), {"b?": (0.1, 5)},
{"b?": True}, {"b?": 0.1}) {"b?": True}, {"b?": 0.1})
ex6 = ("(A > a?) or (A > b?)", ("a?", "b?",), {"a?": (0, 2), "b?": (0, 2)},
{"a?": False, "b?": False}, {"a?": 2, "b?": 1})
x = pd.DataFrame([[1,2], [1,4], [4,2]], index=[0,0.1,0.2], x = pd.DataFrame([[1,2], [1,4], [4,2]], index=[0,0.1,0.2],
columns=["A", "B"]) columns=["A", "B"])
class TestSTLRobustness(unittest.TestCase): class TestSTLRobustness(unittest.TestCase):
@params(ex1, ex2, ex3, ex4, ex5) @params(ex1, ex2, ex3, ex4, ex5, ex6)
def test_lex_synth(self, phi_str, order, ranges, polarity, val): def test_lex_synth(self, phi_str, order, ranges, polarity, val):
phi = stl.parse(phi_str) phi = stl.parse(phi_str)
val2 = stl.synth.lex_param_project( val2 = stl.synth.lex_param_project(