| /* |
| * 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.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)); |
| } |
| |
| } |