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