MATH-902

Fixed Javadoc. Added unit tests.


git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1412713 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/math3/optimization/SimplePointChecker.java

@@ -87,8 +87,7 @@ public class SimplePointChecker<PAIR extends Pair<double[], ? extends Object>>
      *
      * @param relativeThreshold Relative tolerance threshold.
      * @param absoluteThreshold Absolute tolerance threshold.
-     * @param maxIter Maximum iteration count. Setting it to a negative
-     * value will disable this stopping criterion.
+     * @param maxIter Maximum iteration count.
      * @throws NotStrictlyPositiveException if {@code maxIter <= 0}.
      *
      * @since 3.1

src/main/java/org/apache/commons/math3/optimization/SimpleValueChecker.java

@@ -85,8 +85,7 @@ public class SimpleValueChecker
      *
      * @param relativeThreshold relative tolerance threshold
      * @param absoluteThreshold absolute tolerance threshold
-     * @param maxIter Maximum iteration count. Setting it to a negative
-     * value will disable this stopping criterion.
+     * @param maxIter Maximum iteration count.
      * @throws NotStrictlyPositiveException if {@code maxIter <= 0}.
      *
      * @since 3.1

src/main/java/org/apache/commons/math3/optimization/SimpleVectorValueChecker.java

@@ -87,8 +87,7 @@ public class SimpleVectorValueChecker
      *
      * @param relativeThreshold Relative tolerance threshold.
      * @param absoluteThreshold Absolute tolerance threshold.
-     * @param maxIter Maximum iteration count. Setting it to a negative
-     * value will disable this stopping criterion.
+     * @param maxIter Maximum iteration count.
      * @throws NotStrictlyPositiveException if {@code maxIter <= 0}.
      *
      * @since 3.1

src/test/java/org/apache/commons/math3/optimization/SimplePointCheckerTest.java

@@ -0,0 +1,54 @@
+/*
+ * 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.math3.optimization;
+
+import org.apache.commons.math3.exception.NotStrictlyPositiveException;
+import org.junit.Test;
+import org.junit.Assert;
+
+public class SimplePointCheckerTest {
+    @Test(expected=NotStrictlyPositiveException.class)
+    public void testIterationCheckPrecondition() {
+        new SimplePointChecker<PointValuePair>(1e-1, 1e-2, 0);
+    }
+
+    @Test
+    public void testIterationCheck() {
+        final int max = 10;
+        final SimplePointChecker<PointValuePair> checker
+            = new SimplePointChecker<PointValuePair>(1e-1, 1e-2, max);
+        Assert.assertTrue(checker.converged(max, null, null)); 
+        Assert.assertTrue(checker.converged(max + 1, null, null));
+    }
+
+    @Test
+    public void testIterationCheckDisabled() {
+        final SimplePointChecker<PointValuePair> checker
+            = new SimplePointChecker<PointValuePair>(1e-8, 1e-8);
+
+        final PointValuePair a = new PointValuePair(new double[] { 1d }, 1d);
+        final PointValuePair b = new PointValuePair(new double[] { 10d }, 10d);
+
+        Assert.assertFalse(checker.converged(-1, a, b));
+        Assert.assertFalse(checker.converged(0, a, b));
+        Assert.assertFalse(checker.converged(1000000, a, b));
+
+        Assert.assertTrue(checker.converged(-1, a, a));
+        Assert.assertTrue(checker.converged(-1, b, b));
+    }
+
+}

src/test/java/org/apache/commons/math3/optimization/SimpleValueCheckerTest.java

@@ -0,0 +1,52 @@
+/*
+ * 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.math3.optimization;
+
+import org.apache.commons.math3.exception.NotStrictlyPositiveException;
+import org.junit.Test;
+import org.junit.Assert;
+
+public class SimpleValueCheckerTest {
+    @Test(expected=NotStrictlyPositiveException.class)
+    public void testIterationCheckPrecondition() {
+        new SimpleValueChecker(1e-1, 1e-2, 0);
+    }
+
+    @Test
+    public void testIterationCheck() {
+        final int max = 10;
+        final SimpleValueChecker checker = new SimpleValueChecker(1e-1, 1e-2, max);
+        Assert.assertTrue(checker.converged(max, null, null)); 
+        Assert.assertTrue(checker.converged(max + 1, null, null));
+    }
+
+    @Test
+    public void testIterationCheckDisabled() {
+        final SimpleValueChecker checker = new SimpleValueChecker(1e-8, 1e-8);
+
+        final PointValuePair a = new PointValuePair(new double[] { 1d }, 1d);
+        final PointValuePair b = new PointValuePair(new double[] { 10d }, 10d);
+
+        Assert.assertFalse(checker.converged(-1, a, b));
+        Assert.assertFalse(checker.converged(0, a, b));
+        Assert.assertFalse(checker.converged(1000000, a, b));
+
+        Assert.assertTrue(checker.converged(-1, a, a));
+        Assert.assertTrue(checker.converged(-1, b, b));
+    }
+
+}

src/test/java/org/apache/commons/math3/optimization/SimpleVectorValueCheckerTest.java

@@ -0,0 +1,54 @@
+/*
+ * 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.math3.optimization;
+
+import org.apache.commons.math3.exception.NotStrictlyPositiveException;
+import org.junit.Test;
+import org.junit.Assert;
+
+public class SimpleVectorValueCheckerTest {
+    @Test(expected=NotStrictlyPositiveException.class)
+    public void testIterationCheckPrecondition() {
+        new SimpleVectorValueChecker(1e-1, 1e-2, 0);
+    }
+
+    @Test
+    public void testIterationCheck() {
+        final int max = 10;
+        final SimpleVectorValueChecker checker = new SimpleVectorValueChecker(1e-1, 1e-2, max);
+        Assert.assertTrue(checker.converged(max, null, null));
+        Assert.assertTrue(checker.converged(max + 1, null, null));
+    }
+
+    @Test
+    public void testIterationCheckDisabled() {
+        final SimpleVectorValueChecker checker = new SimpleVectorValueChecker(1e-8, 1e-8);
+
+        final PointVectorValuePair a = new PointVectorValuePair(new double[] { 1d },
+                                                                new double[] { 1d });
+        final PointVectorValuePair b = new PointVectorValuePair(new double[] { 10d },
+                                                                new double[] { 10d });
+
+        Assert.assertFalse(checker.converged(-1, a, b));
+        Assert.assertFalse(checker.converged(0, a, b));
+        Assert.assertFalse(checker.converged(1000000, a, b));
+
+        Assert.assertTrue(checker.converged(-1, a, a));
+        Assert.assertTrue(checker.converged(-1, b, b));
+    }
+
+}