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/***
* Bitwuzla: Satisfiability Modulo Theories (SMT) solver.
*
* Copyright (C) 2022 by the authors listed in the AUTHORS file at
* https://github.com/bitwuzla/bitwuzla/blob/main/AUTHORS
*
* This file is part of Bitwuzla under the MIT license. See COPYING for more
* information at https://github.com/bitwuzla/bitwuzla/blob/main/COPYING
*/
#include <gtest/gtest.h>
#include "node/node.h"
#include "node/node_manager.h"
#include "solver/fp/floating_point.h"
#include "solver/fp/rounding_mode.h"
namespace bzla::test {
using namespace bzla::node;
class TestNode : public ::testing::Test
{
};
TEST_F(TestNode, node_ctor_dtor)
{
Node n;
ASSERT_TRUE(n.is_null());
ASSERT_EQ(n.kind(), Kind::NULL_NODE);
ASSERT_EQ(n.id(), 0);
ASSERT_EQ(n.num_children(), 0);
ASSERT_EQ(n.begin(), n.end());
}
TEST_F(TestNode, node_is_value)
{
NodeManager nm;
Type bool_type = nm.mk_bool_type();
Type bv_type = nm.mk_bv_type(32);
Type fp_type = nm.mk_fp_type(5, 11);
Type rm_type = nm.mk_rm_type();
Type array_type = nm.mk_array_type(bv_type, fp_type);
Type fun_type = nm.mk_fun_type({bool_type, rm_type, array_type});
ASSERT_FALSE(nm.mk_const(bool_type).is_value());
ASSERT_FALSE(nm.mk_const(bv_type).is_value());
ASSERT_FALSE(nm.mk_const(fp_type).is_value());
ASSERT_FALSE(nm.mk_const(rm_type).is_value());
ASSERT_FALSE(nm.mk_const(array_type).is_value());
ASSERT_FALSE(nm.mk_const(fun_type).is_value());
ASSERT_TRUE(nm.mk_value(true).is_value());
ASSERT_TRUE(nm.mk_value(false).is_value());
ASSERT_TRUE(nm.mk_value(BitVector::from_ui(32, 1)).is_value());
ASSERT_TRUE(nm.mk_value(FloatingPoint::fpzero(fp_type, true)).is_value());
ASSERT_TRUE(nm.mk_value(RoundingMode::RNA).is_value());
ASSERT_TRUE(nm.mk_value(RoundingMode::RNE).is_value());
ASSERT_TRUE(nm.mk_value(RoundingMode::RTN).is_value());
ASSERT_TRUE(nm.mk_value(RoundingMode::RTP).is_value());
ASSERT_TRUE(nm.mk_value(RoundingMode::RTZ).is_value());
ASSERT_FALSE(
nm.mk_node(Kind::AND, {nm.mk_const(bool_type), nm.mk_const(bool_type)})
.is_value());
}
TEST_F(TestNode, rbegin_rend)
{
NodeManager nm;
Type bool_type = nm.mk_bool_type();
Node a = nm.mk_const(bool_type, "a");
Node b = nm.mk_const(bool_type, "b");
Node c = nm.mk_const(bool_type, "c");
Node d = nm.mk_const(bool_type, "d");
std::vector<Node> children = {a, b};
Node a_and_b = nm.mk_node(Kind::AND, children);
auto itv = children.rbegin();
auto itn = a_and_b.rbegin();
for (; itv != children.rend(); ++itv, ++itn)
{
std::cout << *itv << " == " << *itn << std::endl;
ASSERT_EQ(*itv, *itn);
}
Type fun_type =
nm.mk_fun_type({bool_type, bool_type, bool_type, bool_type, bool_type});
Node fun = nm.mk_const(fun_type);
std::vector<Node> expected = {fun, a, b, c, d};
Node app = nm.mk_node(Kind::APPLY, expected);
itv = expected.rbegin();
itn = app.rbegin();
for (; itv != expected.rend(); ++itv, ++itn)
{
ASSERT_EQ(*itv, *itn);
}
}
TEST_F(TestNode, operator_out)
{
NodeManager nm;
Type bool_type = nm.mk_bool_type();
Type bv_type = nm.mk_bv_type(32);
Type fp_type = nm.mk_fp_type(5, 11);
Type rm_type = nm.mk_rm_type();
Type array_type = nm.mk_array_type(bv_type, fp_type);
Type fun_type = nm.mk_fun_type({bool_type, rm_type, array_type});
std::cout << nm.mk_const(bool_type) << std::endl;
std::cout << nm.mk_const(bv_type) << std::endl;
std::cout << nm.mk_const(fp_type) << std::endl;
std::cout << nm.mk_const(rm_type) << std::endl;
std::cout << nm.mk_const(array_type) << std::endl;
std::cout << nm.mk_const(fun_type) << std::endl;
std::cout << nm.mk_value(RoundingMode::RNA) << std::endl;
std::cout << nm.mk_value(RoundingMode::RNE) << std::endl;
std::cout << nm.mk_value(RoundingMode::RTN) << std::endl;
std::cout << nm.mk_value(RoundingMode::RTP) << std::endl;
std::cout << nm.mk_value(RoundingMode::RTZ) << std::endl;
std::cout << nm.mk_value(true) << std::endl;
std::cout << nm.mk_value(false) << std::endl;
std::cout << nm.mk_value(BitVector::from_ui(32, 1)) << std::endl;
std::cout << nm.mk_value(FloatingPoint::fpzero(fp_type, true)) << std::endl;
std::cout << nm.mk_node(Kind::AND,
{nm.mk_const(bool_type), nm.mk_const(bool_type)})
<< std::endl;
std::cout << nm.mk_node(Kind::APPLY,
{nm.mk_const(fun_type, "fun"),
nm.mk_const(bool_type, "x"),
nm.mk_const(rm_type, "y")})
<< std::endl;
}
} // namespace bzla::test
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