| /* |
| * 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.genetics; |
| |
| |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| import org.apache.commons.math4.legacy.exception.MathIllegalArgumentException; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| @SuppressWarnings("boxing") |
| public class RandomKeyTest { |
| |
| @Test(expected=MathIllegalArgumentException.class) |
| public void testConstructor1() { |
| new DummyRandomKey(new Double[] {0.2, 0.3, 1.2}); |
| } |
| |
| @Test(expected=MathIllegalArgumentException.class) |
| public void testConstructor2() { |
| new DummyRandomKey(new Double[] {0.2, 0.3, -0.2}); |
| } |
| |
| @Test |
| public void testIsSame() { |
| DummyRandomKey drk1 = new DummyRandomKey(new Double[] {0.4, 0.1, 0.5, 0.8, 0.2}); |
| DummyRandomKey drk2 = new DummyRandomKey(new Double[] {0.4, 0.1, 0.5, 0.8, 0.2}); |
| DummyRandomKey drk3 = new DummyRandomKey(new Double[] {0.4, 0.15, 0.5, 0.8, 0.2}); |
| DummyRandomKey drk4 = new DummyRandomKey(new Double[] {0.4, 0.25, 0.5, 0.8, 0.2}); |
| DummyRandomKey drk5 = new DummyRandomKey(new Double[] {0.4, 0.25, 0.5, 0.8, 0.2, 0.5}); |
| |
| Assert.assertTrue(drk1.isSame(drk2)); |
| Assert.assertTrue(drk2.isSame(drk3)); |
| Assert.assertFalse(drk3.isSame(drk4)); |
| Assert.assertFalse(drk4.isSame(drk5)); |
| } |
| |
| @Test |
| public void testDecode() { |
| DummyRandomKey drk = new DummyRandomKey(new Double[] {0.4, 0.1, 0.5, 0.8, 0.2}); |
| List<String> decoded = drk.decode(Arrays.asList(new String[] {"a", "b", "c", "d", "e"})); |
| |
| Assert.assertEquals("b", decoded.get(0)); |
| Assert.assertEquals("e", decoded.get(1)); |
| Assert.assertEquals("a", decoded.get(2)); |
| Assert.assertEquals("c", decoded.get(3)); |
| Assert.assertEquals("d", decoded.get(4)); |
| } |
| |
| @Test(expected=MathIllegalArgumentException.class) |
| public void testInvalidRepresentation() { |
| new DummyRandomKey(new Double[] {0.1, 0.1, 2d, 0.8, 0.2}); |
| } |
| |
| @Test |
| public void testRandomPermutation() { |
| // never generate an invalid one |
| for (int i=0; i<10; i++) { |
| DummyRandomKey drk = new DummyRandomKey(RandomKey.randomPermutation(20)); |
| Assert.assertNotNull(drk); |
| } |
| } |
| |
| @Test |
| public void testIdentityPermutation() { |
| DummyRandomKey drk = new DummyRandomKey(RandomKey.identityPermutation(5)); |
| List<String> decoded = drk.decode(Arrays.asList(new String[] {"a", "b", "c", "d", "e"})); |
| |
| Assert.assertEquals("a", decoded.get(0)); |
| Assert.assertEquals("b", decoded.get(1)); |
| Assert.assertEquals("c", decoded.get(2)); |
| Assert.assertEquals("d", decoded.get(3)); |
| Assert.assertEquals("e", decoded.get(4)); |
| } |
| |
| @Test |
| public void testComparatorPermutation() { |
| List<String> data = Arrays.asList(new String[] {"x", "b", "c", "z", "b"}); |
| |
| List<Double> permutation = RandomKey.comparatorPermutation(data, new Comparator<String>() { |
| @Override |
| public int compare(String o1, String o2) { |
| return o1.compareTo(o2); |
| } |
| }); |
| Double[] permArr = new Double[data.size()]; |
| permArr = permutation.toArray(permArr); |
| Assert.assertArrayEquals(new Double[] {0.6,0.0,0.4,0.8,0.2}, permArr); |
| List<String> decodedData = new DummyRandomKey(permutation).decode(data); |
| Assert.assertEquals("b", decodedData.get(0)); |
| Assert.assertEquals("b", decodedData.get(1)); |
| Assert.assertEquals("c", decodedData.get(2)); |
| Assert.assertEquals("x", decodedData.get(3)); |
| Assert.assertEquals("z", decodedData.get(4)); |
| |
| permutation = RandomKey.comparatorPermutation(data, new Comparator<String>() { |
| @Override |
| public int compare(String o1, String o2) { |
| return o2.compareTo(o1); |
| } |
| }); |
| permArr = new Double[data.size()]; |
| permArr = permutation.toArray(permArr); |
| Assert.assertArrayEquals(new Double[] {0.2,0.6,0.4,0.0,0.8}, permArr); |
| decodedData = new DummyRandomKey(permutation).decode(data); |
| Assert.assertEquals("z", decodedData.get(0)); |
| Assert.assertEquals("x", decodedData.get(1)); |
| Assert.assertEquals("c", decodedData.get(2)); |
| Assert.assertEquals("b", decodedData.get(3)); |
| Assert.assertEquals("b", decodedData.get(4)); |
| } |
| |
| @Test |
| public void testInducedPermutation() { |
| List<String> origData = Arrays.asList(new String[] {"a", "b", "c", "d", "d"}); |
| List<String> permutedData = Arrays.asList(new String[] {"d", "b", "c", "a", "d"}); |
| |
| DummyRandomKey drk = new DummyRandomKey(RandomKey.inducedPermutation(origData, permutedData)); |
| List<String> decoded = drk.decode(origData); |
| |
| Assert.assertEquals("d", decoded.get(0)); |
| Assert.assertEquals("b", decoded.get(1)); |
| Assert.assertEquals("c", decoded.get(2)); |
| Assert.assertEquals("a", decoded.get(3)); |
| Assert.assertEquals("d", decoded.get(4)); |
| |
| try { |
| RandomKey.inducedPermutation( |
| Arrays.asList(new String[] {"a", "b", "c", "d", "d"}), |
| Arrays.asList(new String[] {"a", "b", "c", "d"}) |
| ); |
| Assert.fail("Uncaught exception"); |
| } catch (MathIllegalArgumentException e) { |
| // no-op |
| } |
| try { |
| RandomKey.inducedPermutation( |
| Arrays.asList(new String[] {"a", "b", "c", "d", "d"}), |
| Arrays.asList(new String[] {"a", "b", "c", "d", "f"}) |
| ); |
| Assert.fail("Uncaught exception"); |
| } catch (MathIllegalArgumentException e) { |
| // no-op |
| } |
| } |
| |
| @Test |
| public void testEqualRepr() { |
| DummyRandomKey drk = new DummyRandomKey(new Double[] {0.2, 0.2, 0.5}); |
| List<String> decodedData = drk.decode(Arrays.asList(new String[] {"a", "b", "c"})); |
| Assert.assertEquals("a", decodedData.get(0)); |
| Assert.assertEquals("b", decodedData.get(1)); |
| Assert.assertEquals("c", decodedData.get(2)); |
| } |
| |
| } |