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/******************************************************************************
* Top contributors (to current version):
* Aina Niemetz, Gereon Kremer
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 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.
* ****************************************************************************
*
* Black box testing of cvc5::RealAlgebraicNumber.
*/
#include "test.h"
#include "util/real_algebraic_number.h"
namespace cvc5 {
namespace test {
#ifndef CVC5_POLY_IMP
#error "This unit test should only be enabled for CVC5_POLY_IMP"
#endif
class TestUtilBlackRealAlgebraicNumber : public TestInternal
{
};
TEST_F(TestUtilBlackRealAlgebraicNumber, creation)
{
ASSERT_TRUE(isZero(RealAlgebraicNumber()));
ASSERT_TRUE(isOne(RealAlgebraicNumber(Integer(1))));
ASSERT_FALSE(isOne(RealAlgebraicNumber(Rational(2))));
RealAlgebraicNumber sqrt2({-2, 0, 1}, 1, 2);
ASSERT_TRUE(RealAlgebraicNumber(Integer(1)) < sqrt2);
ASSERT_TRUE(sqrt2 < RealAlgebraicNumber(Integer(2)));
}
TEST_F(TestUtilBlackRealAlgebraicNumber, comprison)
{
RealAlgebraicNumber msqrt3({-3, 0, 1}, -2, -1);
RealAlgebraicNumber msqrt2({-2, 0, 1}, -2, -1);
RealAlgebraicNumber zero;
RealAlgebraicNumber sqrt2({-2, 0, 1}, 1, 2);
RealAlgebraicNumber sqrt3({-3, 0, 1}, 1, 2);
ASSERT_TRUE(msqrt3 < msqrt2);
ASSERT_TRUE(msqrt3 < zero);
ASSERT_TRUE(msqrt3 < sqrt2);
ASSERT_TRUE(msqrt3 < sqrt3);
ASSERT_TRUE(msqrt2 < zero);
ASSERT_TRUE(msqrt2 < sqrt2);
ASSERT_TRUE(msqrt2 < sqrt3);
ASSERT_TRUE(zero < sqrt2);
ASSERT_TRUE(zero < sqrt3);
ASSERT_TRUE(sqrt2 < sqrt3);
}
TEST_F(TestUtilBlackRealAlgebraicNumber, sgn)
{
RealAlgebraicNumber msqrt2({-2, 0, 1}, -2, -1);
RealAlgebraicNumber zero;
RealAlgebraicNumber sqrt2({-2, 0, 1}, 1, 2);
ASSERT_EQ(sgn(msqrt2), -1);
ASSERT_EQ(sgn(zero), 0);
ASSERT_EQ(sgn(sqrt2), 1);
}
TEST_F(TestUtilBlackRealAlgebraicNumber, arithmetic)
{
RealAlgebraicNumber msqrt2({-2, 0, 1}, -2, -1);
RealAlgebraicNumber zero;
RealAlgebraicNumber sqrt2({-2, 0, 1}, 1, 2);
ASSERT_EQ(msqrt2 + sqrt2, zero);
ASSERT_EQ(-msqrt2, sqrt2);
ASSERT_EQ(-msqrt2 + sqrt2, sqrt2 + sqrt2);
ASSERT_EQ(msqrt2 * sqrt2, RealAlgebraicNumber(Integer(-2)));
}
} // namespace test
} // namespace cvc5
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