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/********************* */
/*! \file drat_proof_black.h
** \verbatim
** Top contributors (to current version):
** Alex Ozdemir, Andres Noetzli
** This file is part of the CVC4 project.
** Copyright (c) 2009-2019 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Black box testing of the DRAT proof class
**
** In particular, tests DRAT binary parsing.
**/
#include <cxxtest/TestSuite.h>
#include <cctype>
#include "proof/drat/drat_proof.h"
using namespace CVC4::proof::drat;
class DratProofBlack : public CxxTest::TestSuite
{
public:
void setUp() override {}
void tearDown() override {}
void testParseOneAdd();
void testParseOneMediumAdd();
void testParseOneBigAdd();
void testParseLiteralIsTooBig();
void testParseLiteralOverflow();
void testParseClauseOverflow();
void testParseTwo();
void testOutputTwoAsText();
void testOutputTwoAsLfsc();
};
void DratProofBlack::testParseOneAdd()
{
// a 1;
std::string input("a\x02\x00", 3);
DratProof proof = DratProof::fromBinary(input);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_kind, ADDITION);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause.size(), 1);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause[0],
SatLiteral(0, false));
}
void DratProofBlack::testParseOneMediumAdd()
{
// a -255;
std::string input("a\xff\x01\x00", 4);
DratProof proof = DratProof::fromBinary(input);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_kind, ADDITION);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause.size(), 1);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause[0],
SatLiteral(126, true));
}
void DratProofBlack::testParseOneBigAdd()
{
// a -2199023255551;
std::string input("a\xff\xff\xff\xff\xff\x7f\x00", 8);
DratProof proof = DratProof::fromBinary(input);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_kind, ADDITION);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause.size(), 1);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause[0],
SatLiteral(2199023255550, true));
}
void DratProofBlack::testParseLiteralIsTooBig()
{
std::string input("a\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x7f\x00",
14);
TS_ASSERT_THROWS(DratProof::fromBinary(input), InvalidDratProofException&);
}
void DratProofBlack::testParseLiteralOverflow()
{
std::string input("a\x80", 2);
TS_ASSERT_THROWS(DratProof::fromBinary(input), InvalidDratProofException&);
}
void DratProofBlack::testParseClauseOverflow()
{
std::string input("a\x80\x01", 3);
TS_ASSERT_THROWS(DratProof::fromBinary(input), InvalidDratProofException&);
}
void DratProofBlack::testParseTwo()
{
// d -63 -8193
// 129 -8191
std::string input("\x64\x7f\x83\x80\x01\x00\x61\x82\x02\xff\x7f\x00", 12);
DratProof proof = DratProof::fromBinary(input);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_kind, DELETION);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause.size(), 2);
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause[0],
SatLiteral(62, true));
TS_ASSERT_EQUALS(proof.getInstructions()[0].d_clause[1],
SatLiteral(8192, true));
TS_ASSERT_EQUALS(proof.getInstructions()[1].d_kind, ADDITION);
TS_ASSERT_EQUALS(proof.getInstructions()[1].d_clause.size(), 2);
TS_ASSERT_EQUALS(proof.getInstructions()[1].d_clause[0],
SatLiteral(128, false));
TS_ASSERT_EQUALS(proof.getInstructions()[1].d_clause[1],
SatLiteral(8190, true));
}
void DratProofBlack::testOutputTwoAsText()
{
// d -63 -8193
// 129 -8191
std::string input("\x64\x7f\x83\x80\x01\x00\x61\x82\x02\xff\x7f\x00", 12);
DratProof proof = DratProof::fromBinary(input);
std::ostringstream output;
proof.outputAsText(output);
std::istringstream tokens(output.str());
std::string token;
tokens >> token;
TS_ASSERT_EQUALS(token, "d");
tokens >> token;
TS_ASSERT_EQUALS(token, "-63");
tokens >> token;
TS_ASSERT_EQUALS(token, "-8193");
tokens >> token;
TS_ASSERT_EQUALS(token, "0");
tokens >> token;
TS_ASSERT_EQUALS(token, "129");
tokens >> token;
TS_ASSERT_EQUALS(token, "-8191");
tokens >> token;
TS_ASSERT_EQUALS(token, "0");
}
void DratProofBlack::testOutputTwoAsLfsc()
{
// d -63 -8193
// 129 -8191
std::string input("\x64\x7f\x83\x80\x01\x00\x61\x82\x02\xff\x7f\x00", 12);
DratProof proof = DratProof::fromBinary(input);
std::ostringstream lfsc;
proof.outputAsLfsc(lfsc, 2);
std::ostringstream lfscWithoutWhitespace;
for (char c : lfsc.str())
{
if (!std::isspace(c))
{
lfscWithoutWhitespace << c;
}
}
std::string expectedLfsc =
"(DRATProofd (clc (neg bb.v62) (clc (neg bb.v8192) cln))"
"(DRATProofa (clc (pos bb.v128) (clc (neg bb.v8190) cln))"
"DRATProofn))";
std::ostringstream expectedLfscWithoutWhitespace;
for (char c : expectedLfsc)
{
if (!std::isspace(c))
{
expectedLfscWithoutWhitespace << c;
}
}
TS_ASSERT_EQUALS(lfscWithoutWhitespace.str(),
expectedLfscWithoutWhitespace.str());
}
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