def testDiffArity(self):
from iegen import Set
from iegen.parser import PresParser
pset1=PresParser.parse_set('{[a]:a>10}')
pset2=PresParser.parse_set('{[a,b]:b>10}')
Set(sets=[pset1,pset2])
def testDiffBothArity(self):
from iegen import Relation
from iegen.parser import PresParser
relation1=PresParser.parse_relation('{[a]->[b]:a>10}')
relation2=PresParser.parse_relation('{[a,b]->[a,b]:b>10}')
Relation(relations=[relation1,relation2])
def testSets(self):
from iegen import Set
from iegen.parser import PresParser
set1=PresParser.parse_set('{[a]:a>10}')
set2=PresParser.parse_set('{[b]:b>10}')
set=Set(sets=[set1,set2])
def testSetsWithSymbolics(self):
from iegen import Set,Symbolic
from iegen.parser import PresParser
set1=PresParser.parse_set('{[a]:a>10 and a<n}',[Symbolic('n')])
set2=PresParser.parse_set('{[b]:b>10 and b<m}',[Symbolic('m')])
set=Set(sets=[set1,set2])
def testRelationsWhtSymbolics(self):
from iegen import Relation,Symbolic
from iegen.parser import PresParser
relation1=PresParser.parse_relation('{[a]->[b]:a>10 and a<n}',[Symbolic('n')])
relation2=PresParser.parse_relation('{[b]->[c]:b>10 and b<m}',[Symbolic('m')])
relation=Relation(relations=[relation1,relation2])
def testRelations(self):
from iegen import Relation
from iegen.parser import PresParser
relation1=PresParser.parse_relation('{[a]->[b]:a>10}')
relation2=PresParser.parse_relation('{[b]->[c]:b>10}')
relation=Relation(relations=[relation1,relation2])
def testIsConstraintNoSearchVarTuple(self):
from iegen.ast.visitor import IsVarVisitor
from iegen.parser import PresParser
set = PresParser.parse_set("{[a]}")
relation = PresParser.parse_relation("{[a]->[b]}")
self.failIf(IsVarVisitor("a").visit(set).is_constraint_var, "'a' is a constraint var in %s" % set)
self.failIf(IsVarVisitor("a").visit(relation).is_constraint_var, "'a' is a constraint var in %s" % relation)
self.failIf(IsVarVisitor("b").visit(relation).is_constraint_var, "'b' is a constraint var in %s" % relation)
def testIsTupleSearchVarTuple(self):
from iegen.ast.visitor import IsVarVisitor
from iegen.parser import PresParser
set = PresParser.parse_set("{[a]}")
relation = PresParser.parse_relation("{[a]->[b]}")
self.failUnless(IsVarVisitor("a").visit(set).is_tuple_var, "'a' is a not tuple var in %s" % set)
self.failUnless(IsVarVisitor("a").visit(relation).is_tuple_var, "'a' is a not tuple var in %s" % relation)
self.failUnless(IsVarVisitor("b").visit(relation).is_tuple_var, "'b' is a not tuple var in %s" % relation)
def testOrder(self):
from iegen import Set
from iegen.parser import PresParser
pset1=PresParser.parse_set('{[a]:a>10}')
pset2=PresParser.parse_set('{[b]:b>10}')
set1=Set(sets=[pset1,pset2])
set2=Set(sets=[pset2,pset1])
self.failUnless(set1==set2,'%s!=%s'%(set1,set2))
def testIsTupleNoSearchSymbolics(self):
from iegen.ast.visitor import IsVarVisitor
from iegen import Symbolic
from iegen.parser import PresParser
set = PresParser.parse_set("{[]}", [Symbolic("n")])
set.symbolics.append(Symbolic("n"))
relation = PresParser.parse_relation("{[]->[]}")
relation.symbolics.append(Symbolic("n"))
self.failIf(IsVarVisitor("n").visit(set).is_tuple_var, "'n' is a tuple var in %s" % set)
self.failIf(IsVarVisitor("n").visit(relation).is_tuple_var, "'n' is a tuple var in %s" % relation)
def testIsSymSearchSymbolics(self):
from iegen.ast.visitor import IsVarVisitor
from iegen import Symbolic
from iegen.parser import PresParser
set = PresParser.parse_set("{[]}")
set.symbolics.append(Symbolic("n"))
relation = PresParser.parse_relation("{[]->[]}")
relation.symbolics.append(Symbolic("n"))
self.failUnless(IsVarVisitor("n").visit(set).is_symbolic_var, "'n' is not a symbolic var in %s" % set)
self.failUnless(IsVarVisitor("n").visit(relation).is_symbolic_var, "'n' is not a symbolic var in %s" % relation)
def testOrder(self):
from iegen import Relation
from iegen.parser import PresParser
prelation1=PresParser.parse_relation('{[a]->[a]:a>10}')
prelation2=PresParser.parse_relation('{[b]->[b]:b>11}')
relation1=Relation(relations=[prelation1,prelation2])
prelation1=PresParser.parse_relation('{[a]->[a]:a>11}')
prelation2=PresParser.parse_relation('{[b]->[b]:b>10}')
relation2=Relation(relations=[prelation1,prelation2])
self.failUnless(relation1==relation2,'%s!=%s'%(relation1,relation2))
def testCollectTwice(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen.ast import Equality, NormExp, VarExp
from iegen.parser import PresParser
from iegen import Symbolic
rel = PresParser.parse_relation("{[a]->[b]: a=n}", [Symbolic("n")])
v = CollectVarsVisitor(all_vars=True).visit(rel)
rel = PresParser.parse_relation("{[c]->[d]: c=n}", [Symbolic("n")])
v.visit(rel)
res = ["a", "b", "c", "d", "n"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testTwoVarsSet(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen.parser import PresParser
set = PresParser.parse_set("{[a,b,c]: a=1 and b=c}")
v = CollectVarsVisitor().visit(set)
res = ["a", "b", "c"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
set = PresParser.parse_set("{[a,c,b]: a=1 and b=c}")
v = CollectVarsVisitor().visit(set)
res = ["a", "b", "c"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testResultPresent(self):
from iegen.ast.visitor import UniqueTupleVarsVisitor
from iegen.parser import PresParser
set = PresParser.parse_set("{[]}")
v = UniqueTupleVarsVisitor().visit(set)
self.failUnless(hasattr(v, "changed"), "UniqueTupleVarsVisitor doesn't place result in the 'changed' property.")
def testResultPresent(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen.parser import PresParser
set = PresParser.parse_set("{[a]}")
v = CollectVarsVisitor().visit(set)
self.failUnless(hasattr(v, "vars"), "CollectVarsVisitor doesn't place result in the 'vars' property.")
def testMultipleRenameSet(self):
from iegen.ast.visitor import UniqueTupleVarsVisitor
from iegen.ast import PresSet, VarTuple, Conjunction, VarExp
from iegen.parser import PresParser
set = PresSet(
VarTuple(
[
VarExp(1, "a"),
VarExp(1, "b"),
VarExp(1, "c"),
VarExp(1, "d"),
VarExp(1, "c"),
VarExp(1, "a"),
VarExp(1, "b"),
]
),
Conjunction([]),
)
changed = UniqueTupleVarsVisitor().visit(set).changed
set_res = PresParser.parse_set("{[a,b,c,d,c0,a0,b0]: c=c0 and a=a0 and b=b0 }")
self.failUnless(set_res == set, "%s!=%s" % (set_res, set))
self.failUnless(True == changed, "changed!=True")
def testTwoVarsSet(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen import Symbolic
from iegen.parser import PresParser
set = PresParser.parse_set("{[a,b]: a=1 and b=m}", [Symbolic("n")])
v = CollectVarsVisitor().visit(set)
res = ["a", "b"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
set = PresParser.parse_set("{[b,a]: a=1 and b=m}", [Symbolic("n")])
v = CollectVarsVisitor().visit(set)
res = ["a", "b"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testThreeVarsRelation(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen import Symbolic
from iegen.parser import PresParser
rel = PresParser.parse_relation("{[a]->[b,c]: a=1 and b=c}")
v = CollectVarsVisitor().visit(rel)
res = ["a", "b", "c"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
rel = PresParser.parse_relation("{[a,b]->[c]: a=1 and b=n}", [Symbolic("n")])
v = CollectVarsVisitor().visit(rel)
res = ["a", "b", "c"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testIsTupleNoSearchConstraints(self):
from iegen.ast.visitor import IsVarVisitor
from iegen.parser import PresParser
from iegen.ast import Equality, Inequality, NormExp, VarExp
set = PresParser.parse_set("{[]}")
set.conjunct.constraints.append(Equality(NormExp([VarExp(1, "b")], 1)))
set.conjunct.constraints.append(Inequality(NormExp([VarExp(-1, "a")], 10)))
relation = PresParser.parse_relation("{[]->[]}")
relation.conjunct.constraints.append(Equality(NormExp([VarExp(1, "b")], 1)))
relation.conjunct.constraints.append(Inequality(NormExp([VarExp(-1, "a")], 10)))
self.failIf(IsVarVisitor("a").visit(set).is_tuple_var, "'a' is a tuple var in %s" % set)
self.failIf(IsVarVisitor("b").visit(set).is_tuple_var, "'b' is a tuple var in %s" % set)
self.failIf(IsVarVisitor("a").visit(relation).is_tuple_var, "'a' is a tuple var in %s" % relation)
self.failIf(IsVarVisitor("b").visit(relation).is_tuple_var, "'b' is a tuple var in %s" % relation)
def testNoVarsSet(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen.parser import PresParser
set = PresParser.parse_set("{[]}")
v = CollectVarsVisitor().visit(set)
res = []
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testReturnsSelf(self):
from iegen.ast.visitor import DFVisitor
from iegen.parser import PresParser
set = PresParser.parse_set("{[]}")
v = DFVisitor()
self.failUnless(v.visit(set) is v, "visit() method does not return 'self'")
def testNoVarsRelation(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen.parser import PresParser
rel = PresParser.parse_relation("{[]->[]}")
v = CollectVarsVisitor().visit(rel)
res = []
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testOneVarSet(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen import Symbolic
from iegen.parser import PresParser
set = PresParser.parse_set("{[a]: a=n}", [Symbolic("n")])
v = CollectVarsVisitor().visit(set)
res = ["a"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testOneVarRelation(self):
from iegen.ast.visitor import CollectVarsVisitor
from iegen import Symbolic
from iegen.parser import PresParser
rel = PresParser.parse_relation("{[a]->[]: a=n}", [Symbolic("n")])
v = CollectVarsVisitor().visit(rel)
res = ["a"]
self.failUnless(res == v.vars, "%s!=%s" % (res, v.vars))
def testInverseConstraints(self):
from iegen import Relation
from iegen.parser import PresParser
relation=Relation('{[a,b]->[c,d]:a>=n && b<5 and c+d=15}')
prelation=PresParser.parse_relation('{[c,d]->[a,b]:b<5 and a>=n && c+d=15}')
inverse=relation.inverse()
inverse_res=Relation(relations=[prelation])
self.failUnless(inverse==inverse_res,'%s!=%s'%(inverse,inverse_res))
def testInverse(self):
from iegen import Relation
from iegen.parser import PresParser
relation=Relation('{[a,b]->[c,d]}')
prelation=PresParser.parse_relation('{[c,d]->[a,b]}')
inverse=relation.inverse()
inverse_res=Relation(relations=[prelation])
self.failUnless(inverse==inverse_res,'%s!=%s'%(inverse,inverse_res))
def testRenameRelationSimple3(self):
from iegen.ast.visitor import UniqueTupleVarsVisitor
from iegen.ast import PresRelation, VarTuple, Conjunction, VarExp
from iegen.parser import PresParser
rel = PresRelation(VarTuple([VarExp(1, "a")]), VarTuple([VarExp(1, "a")]), Conjunction([]))
changed = UniqueTupleVarsVisitor().visit(rel).changed
rel_res = PresParser.parse_relation("{[a]->[a0]: a=a0}")
self.failUnless(rel_res == rel, "%s!=%s" % (rel_res, rel))
self.failUnless(True == changed, "changed!=True")
def testEmptyRelation(self):
from iegen.ast.visitor import UniqueTupleVarsVisitor
from iegen.ast import PresRelation, VarTuple, Conjunction
from iegen.parser import PresParser
rel = PresRelation(VarTuple([]), VarTuple([]), Conjunction([]))
changed = UniqueTupleVarsVisitor().visit(rel).changed
rel_res = PresParser.parse_relation("{[]->[]}")
self.failUnless(rel_res == rel, "%s!=%s" % (rel_res, rel))
self.failUnless(False == changed, "changed!=False")
def testNoChangeSet(self):
from iegen.ast.visitor import UniqueTupleVarsVisitor
from iegen.ast import PresSet, VarTuple, Conjunction, VarExp
from iegen.parser import PresParser
set = PresSet(VarTuple([VarExp(1, "a"), VarExp(1, "b")]), Conjunction([]))
changed = UniqueTupleVarsVisitor().visit(set).changed
set_res = PresParser.parse_set("{[a,b]}")
self.failUnless(set_res == set, "%s!=%s" % (set_res, set))
self.failUnless(False == changed, "changed!=False")
