Add unit tests.

commons-math-legacy/src/test/java/org/apache/commons/math4/legacy/optim/PointVectorValuePairTest.java

@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF 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
+ *
+ *      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.
+ */
+
+package org.apache.commons.math4.legacy.optim;
+
+import org.apache.commons.math4.legacy.TestUtils;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class PointVectorValuePairTest {
+    @Test
+    public void testAccessors1() {
+        final double[] k = new double[] { 1.0, 2.0, 3.0 };
+        final double[] v = new double[] { 4.0, 5.0 };
+
+        final PointVectorValuePair pv = new PointVectorValuePair(k, v);
+
+        final double[] kC = pv.getPoint();
+        kC[0] = 1 - kC[0];
+        final double[] vC = pv.getValue();
+        vC[0] = 1 - vC[0];
+
+        // Check that "pv" has not been changed.
+        TestUtils.assertEquals("k", k, pv.getPoint(), 0d);
+        TestUtils.assertEquals("v", v, pv.getValue(), 0d);
+    }
+
+    @Test
+    public void testAccessors2() {
+        final double[] k = new double[] { 1.0, 2.0, 3.0 };
+        final double[] v = new double[] { 4.0, 5.0 };
+
+        final PointVectorValuePair pv = new PointVectorValuePair(k, v);
+
+        final double[] kC = pv.getPointRef();
+        kC[0] = 1 - kC[0];
+        final double[] vC = pv.getValueRef();
+        vC[0] = 1 - vC[0];
+
+        // Check that "pv" has been changed.
+        Assert.assertEquals(kC[0], pv.getPoint()[0], 0d);
+        Assert.assertEquals(vC[0], pv.getValue()[0], 0d);
+    }
+}