72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
// Copyright 2010-2025 Google LLC
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "ortools/sat/sat_base.h"
|
|
|
|
#include "gtest/gtest.h"
|
|
|
|
namespace operations_research {
|
|
namespace sat {
|
|
namespace {
|
|
|
|
TEST(BooleanVariableTest, Api) {
|
|
BooleanVariable var1(1);
|
|
BooleanVariable var2(2);
|
|
BooleanVariable var3(2);
|
|
EXPECT_NE(var1, var2);
|
|
EXPECT_EQ(var2, var3);
|
|
}
|
|
|
|
TEST(LiteralTest, Api) {
|
|
BooleanVariable var1(1);
|
|
BooleanVariable var2(2);
|
|
Literal l1(var1, true);
|
|
Literal l2(var2, false);
|
|
Literal l3 = l2.Negated();
|
|
EXPECT_EQ(l1.Variable(), var1);
|
|
EXPECT_EQ(l2.Variable(), var2);
|
|
EXPECT_EQ(l3.Variable(), var2);
|
|
EXPECT_TRUE(l1.IsPositive());
|
|
EXPECT_TRUE(l2.IsNegative());
|
|
EXPECT_TRUE(l3.IsPositive());
|
|
}
|
|
|
|
TEST(VariablesAssignmentTest, Api) {
|
|
BooleanVariable var0(0);
|
|
BooleanVariable var1(1);
|
|
BooleanVariable var2(2);
|
|
|
|
VariablesAssignment assignment;
|
|
assignment.Resize(3);
|
|
assignment.AssignFromTrueLiteral(Literal(var0, true));
|
|
assignment.AssignFromTrueLiteral(Literal(var1, false));
|
|
|
|
EXPECT_TRUE(assignment.LiteralIsTrue(Literal(var0, true)));
|
|
EXPECT_TRUE(assignment.LiteralIsFalse(Literal(var0, false)));
|
|
EXPECT_TRUE(assignment.LiteralIsTrue(Literal(var1, false)));
|
|
EXPECT_FALSE(assignment.VariableIsAssigned(var2));
|
|
|
|
assignment.UnassignLiteral(Literal(var0, true));
|
|
EXPECT_FALSE(assignment.VariableIsAssigned(var0));
|
|
|
|
assignment.AssignFromTrueLiteral(Literal(var2, false));
|
|
EXPECT_TRUE(assignment.LiteralIsTrue(Literal(var2, false)));
|
|
EXPECT_FALSE(assignment.LiteralIsTrue(Literal(var2, true)));
|
|
EXPECT_TRUE(assignment.LiteralIsFalse(Literal(var2, true)));
|
|
EXPECT_FALSE(assignment.LiteralIsFalse(Literal(var2, false)));
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace sat
|
|
} // namespace operations_research
|