/*
    * Licensed to the Hipparchus project under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The Hipparchus project licenses this file to You 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
    *
    *      https://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.
   */
  package org.hipparchus.optim.nonlinear.vector.constrained;
  
  import org.hipparchus.linear.MatrixUtils;
  import org.hipparchus.linear.RealMatrix;
  import org.hipparchus.linear.RealVector;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  class BoundedConstraintTest {
  
      @Test
      void testConstructor() {
          // GIVEN
          final RealVector lowerBound = MatrixUtils.createRealVector(new double[] { -1. });
          final RealVector upperBound = MatrixUtils.createRealVector(new double[] { 1. });
          // WHEN
          final BoundedConstraint boundedConstraint = new TestBoundedConstraint(lowerBound, upperBound);
          // THEN
          assertEquals(lowerBound.getEntry(0), boundedConstraint.getLowerBound().getEntry(0), 0.);
          assertEquals(upperBound.getEntry(0), boundedConstraint.getUpperBound().getEntry(0), 0.);
      }
  
      @Test
      void testConstructorNullLowerBound() {
          // GIVEN
          final RealVector upperBound = MatrixUtils.createRealVector(new double[1]);
          // WHEN
          final BoundedConstraint boundedConstraint = new TestBoundedConstraint(null, upperBound);
          // THEN
          assertEquals(boundedConstraint.getLowerBound().getDimension(),
                  boundedConstraint.getUpperBound().getDimension());
      }
  
      @Test
      void testConstructorNullUpperBound() {
          // GIVEN
          final RealVector lowerBound = MatrixUtils.createRealVector(new double[1]);
          // WHEN
          final BoundedConstraint boundedConstraint = new TestBoundedConstraint(lowerBound, null);
          // THEN
          assertEquals(boundedConstraint.getLowerBound().getDimension(),
                  boundedConstraint.getUpperBound().getDimension());
      }
  
      private static class TestBoundedConstraint extends BoundedConstraint {
  
          TestBoundedConstraint(RealVector lower, RealVector upper) {
              super(lower, upper);
          }
  
          @Override
          public int dim() {
              return 0;
          }
  
          @Override
          public RealVector value(RealVector x) {
              return null;
          }
  
          @Override
          public RealMatrix jacobian(RealVector x) {
              return null;
          }
      }
  
  }