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/********************* */
/*! \file union_find_black.h
** \verbatim
** Original author: mdeters
** Major contributors: none
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Black box testing of CVC4::theory::uf::morgan::UnionFind
**
** Black box testing of CVC4::theory::uf::morgan::UnionFind.
**/
#include <cxxtest/TestSuite.h>
#include "context/context.h"
#include "expr/node.h"
#include "theory/uf/morgan/union_find.h"
using namespace CVC4;
using namespace CVC4::theory::uf::morgan;
using namespace CVC4::context;
using namespace std;
/**
* Test the UnionFind.
*/
class UnionFindBlack : public CxxTest::TestSuite {
Context* d_ctxt;
UnionFind<TNode, TNodeHashFunction>* d_uf;
NodeManager* d_nm;
NodeManagerScope* d_scope;
Node a, b, c, d, e, f, g;
public:
void setUp() {
d_ctxt = new Context;
d_nm = new NodeManager(d_ctxt, NULL);
d_scope = new NodeManagerScope(d_nm);
d_uf = new UnionFind<TNode, TNodeHashFunction>(d_ctxt);
a = d_nm->mkVar("a", d_nm->realType());
b = d_nm->mkVar("b", d_nm->realType());
c = d_nm->mkVar("c", d_nm->realType());
d = d_nm->mkVar("d", d_nm->realType());
e = d_nm->mkVar("e", d_nm->realType());
f = d_nm->mkVar("f", d_nm->realType());
g = d_nm->mkVar("g", d_nm->realType());
}
void tearDown() {
g = Node::null();
f = Node::null();
e = Node::null();
d = Node::null();
c = Node::null();
b = Node::null();
a = Node::null();
delete d_uf;
delete d_scope;
delete d_nm;
delete d_ctxt;
}
void testSimpleContextual() {
TS_ASSERT(d_uf->find(a) == a);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == c);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == f);
TS_ASSERT(d_uf->find(g) == g);
d_ctxt->push();
d_uf->setCanon(a, b);
TS_ASSERT(d_uf->find(a) == b);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == c);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == f);
TS_ASSERT(d_uf->find(g) == g);
d_ctxt->push();
{
TS_ASSERT(d_uf->find(a) == b);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == c);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == f);
TS_ASSERT(d_uf->find(g) == g);
d_uf->setCanon(c, d);
d_uf->setCanon(f, e);
TS_ASSERT(d_uf->find(a) == b);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == d);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == e);
TS_ASSERT(d_uf->find(g) == g);
d_ctxt->push();
{
TS_ASSERT(d_uf->find(a) == b);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == d);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == e);
TS_ASSERT(d_uf->find(g) == g);
#ifdef CVC4_ASSERTIONS
TS_ASSERT_THROWS(d_uf->setCanon(a, c), AssertionException);
TS_ASSERT_THROWS(d_uf->setCanon(d_uf->find(a), c), AssertionException);
TS_ASSERT_THROWS(d_uf->setCanon(a, d_uf->find(c)), AssertionException);
#endif /* CVC4_ASSERTIONS */
d_uf->setCanon(d_uf->find(a), d_uf->find(c));
d_uf->setCanon(d_uf->find(f), g);
d_uf->setCanon(d_uf->find(e), d);
#ifdef CVC4_ASSERTIONS
TS_ASSERT_THROWS(d_uf->setCanon(d_uf->find(c), f), AssertionException);
#endif /* CVC4_ASSERTIONS */
d_uf->setCanon(d_uf->find(c), d_uf->find(f));
TS_ASSERT(d_uf->find(a) == d);
TS_ASSERT(d_uf->find(b) == d);
TS_ASSERT(d_uf->find(c) == d);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == d);
TS_ASSERT(d_uf->find(f) == d);
TS_ASSERT(d_uf->find(g) == d);
d_uf->setCanon(d_uf->find(g), d_uf->find(a));
TS_ASSERT(d_uf->find(a) == d);
TS_ASSERT(d_uf->find(b) == d);
TS_ASSERT(d_uf->find(c) == d);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == d);
TS_ASSERT(d_uf->find(f) == d);
TS_ASSERT(d_uf->find(g) == d);
}
d_ctxt->pop();
TS_ASSERT(d_uf->find(a) == b);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == d);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == e);
TS_ASSERT(d_uf->find(g) == g);
}
d_ctxt->pop();
TS_ASSERT(d_uf->find(a) == b);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == c);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == f);
TS_ASSERT(d_uf->find(g) == g);
d_ctxt->pop();
TS_ASSERT(d_uf->find(a) == a);
TS_ASSERT(d_uf->find(b) == b);
TS_ASSERT(d_uf->find(c) == c);
TS_ASSERT(d_uf->find(d) == d);
TS_ASSERT(d_uf->find(e) == e);
TS_ASSERT(d_uf->find(f) == f);
TS_ASSERT(d_uf->find(g) == g);
}
};
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