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import pytest
import pycvc4
from pycvc4 import kinds
def test_get_kind():
solver = pycvc4.Solver()
intsort = solver.getIntegerSort()
x = solver.mkConst(intsort, 'x')
y = solver.mkConst(intsort, 'y')
xpy = solver.mkTerm(kinds.Plus, x, y)
assert xpy.getKind() == kinds.Plus
funsort = solver.mkFunctionSort(intsort, intsort)
f = solver.mkConst(funsort, 'f')
assert f.getKind() == kinds.Constant
fx = solver.mkTerm(kinds.ApplyUf, f, x)
assert fx.getKind() == kinds.ApplyUf
def test_eq():
solver = pycvc4.Solver()
usort = solver.mkUninterpretedSort('u')
x = solver.mkConst(usort, 'x')
y = solver.mkConst(usort, 'y')
z = x
assert x == x
assert x == z
assert not (x != x)
assert x != y
assert y != z
def test_get_sort():
solver = pycvc4.Solver()
intsort = solver.getIntegerSort()
bvsort8 = solver.mkBitVectorSort(8)
x = solver.mkConst(intsort, 'x')
y = solver.mkConst(intsort, 'y')
a = solver.mkConst(bvsort8, 'a')
b = solver.mkConst(bvsort8, 'b')
assert x.getSort() == intsort
assert solver.mkTerm(kinds.Plus, x, y).getSort() == intsort
assert a.getSort() == bvsort8
assert solver.mkTerm(kinds.BVConcat, a, b).getSort() == solver.mkBitVectorSort(16)
def test_get_op():
solver = pycvc4.Solver()
intsort = solver.getIntegerSort()
funsort = solver.mkFunctionSort(intsort, intsort)
x = solver.mkConst(intsort, 'x')
f = solver.mkConst(funsort, 'f')
fx = solver.mkTerm(kinds.ApplyUf, f, x)
assert not x.hasOp()
try:
op = x.getOp()
assert False
except:
assert True
assert fx.hasOp()
assert fx.getOp().getKind() == kinds.ApplyUf
# equivalent check
assert fx.getOp() == solver.mkOp(kinds.ApplyUf)
def test_is_const():
solver = pycvc4.Solver()
intsort = solver.getIntegerSort()
one = solver.mkReal(1)
x = solver.mkConst(intsort, 'x')
xpone = solver.mkTerm(kinds.Plus, x, one)
onepone = solver.mkTerm(kinds.Plus, one, one)
assert not x.isConst()
assert one.isConst()
assert not xpone.isConst()
assert not onepone.isConst()
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