Add tests on BoundedConstraint

hipparchus-optim/src/test/java/org/hipparchus/optim/nonlinear/vector/constrained/BoundedConstraintTest.java

@@ -0,0 +1,67 @@
+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.Assert;
+import org.junit.Test;
+
+public class BoundedConstraintTest {
+
+    @Test
+    public 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
+        Assert.assertEquals(lowerBound.getEntry(0), boundedConstraint.getLowerBound().getEntry(0), 0.);
+        Assert.assertEquals(upperBound.getEntry(0), boundedConstraint.getUpperBound().getEntry(0), 0.);
+    }
+
+    @Test
+    public void testConstructorNullLowerBound() {
+        // GIVEN
+        final RealVector upperBound = MatrixUtils.createRealVector(new double[1]);
+        // WHEN
+        final BoundedConstraint boundedConstraint = new TestBoundedConstraint(null, upperBound);
+        // THEN
+        Assert.assertEquals(boundedConstraint.getLowerBound().getDimension(),
+                boundedConstraint.getUpperBound().getDimension());
+    }
+
+    @Test
+    public void testConstructorNullUpperBound() {
+        // GIVEN
+        final RealVector lowerBound = MatrixUtils.createRealVector(new double[1]);
+        // WHEN
+        final BoundedConstraint boundedConstraint = new TestBoundedConstraint(lowerBound, null);
+        // THEN
+        Assert.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;
+        }
+    }
+
+}