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/****************************************************************************** |
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* Top contributors (to current version): |
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* Aina Niemetz, Andres Noetzli, Andrew Reynolds |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* Black box testing of the skolem cache of the theory of strings. |
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*/ |
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#include <memory> |
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#include "expr/node.h" |
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#include "test_smt.h" |
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#include "theory/strings/skolem_cache.h" |
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#include "util/rational.h" |
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#include "util/string.h" |
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namespace cvc5 { |
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using namespace theory::strings; |
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namespace test { |
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class TestTheoryBlackStringsSkolemCache : public TestSmt |
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{ |
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}; |
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TEST_F(TestTheoryBlackStringsSkolemCache, mkSkolemCached) |
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{ |
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Node zero = d_nodeManager->mkConst(Rational(0)); |
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Node n = d_skolemManager->mkDummySkolem("n", d_nodeManager->integerType()); |
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Node a = d_skolemManager->mkDummySkolem("a", d_nodeManager->stringType()); |
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Node b = d_skolemManager->mkDummySkolem("b", d_nodeManager->stringType()); |
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Node c = d_skolemManager->mkDummySkolem("c", d_nodeManager->stringType()); |
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Node d = d_skolemManager->mkDummySkolem("d", d_nodeManager->stringType()); |
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Node sa = d_nodeManager->mkNode( |
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kind::STRING_SUBSTR, |
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a, |
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zero, |
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d_nodeManager->mkNode(kind::STRING_STRIDOF, a, b, zero)); |
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Node sc = d_nodeManager->mkNode(kind::STRING_SUBSTR, c, zero, n); |
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SkolemCache sk; |
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// Check that skolems are shared between: |
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// |
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// SK_FIRST_CTN(a, b) |
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// |
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// SK_FIRST_CTN(a, b) |
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{ |
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Node s1 = sk.mkSkolemCached(a, b, SkolemCache::SK_FIRST_CTN_PRE, "foo"); |
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Node s2 = sk.mkSkolemCached(a, b, SkolemCache::SK_FIRST_CTN_PRE, "foo"); |
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ASSERT_EQ(s1, s2); |
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} |
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} |
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} // namespace test |
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} // namespace cvc5 |