#529: Add 'HPRMutatorTest' class.

jenetics.ext/src/test/java/io/jenetics/ext/HPRMutatorTest.java

@@ -0,0 +1,60 @@
+/*
+ * Java Genetic Algorithm Library (@__identifier__@).
+ * Copyright (c) @__year__@ Franz Wilhelmstötter
+ *
+ * Licensed 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.
+ *
+ * Author:
+ *    Franz Wilhelmstötter (franz.wilhelmstoetter@gmail.com)
+ */
+package io.jenetics.ext;
+
+import java.util.Random;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+import io.jenetics.Chromosome;
+import io.jenetics.EnumGene;
+import io.jenetics.MutatorResult;
+import io.jenetics.PermutationChromosome;
+
+/**
+ * @author <a href="mailto:franz.wilhelmstoetter@gmail.com">Franz Wilhelmstötter</a>
+ */
+public class HPRMutatorTest {
+
+	@Test(invocationCount = 10)
+	public void mutate() {
+		final PermutationChromosome<Integer> original =
+			PermutationChromosome.ofInteger(100);
+
+		final HPRMutator<EnumGene<Integer>, Integer> mutator =
+			new HPRMutator<>(1.0);
+
+		final MutatorResult<Chromosome<EnumGene<Integer>>> result =
+			mutator.mutate(original, 1, new Random());
+
+		final int[] a = original.stream()
+			.mapToInt(EnumGene::getAllele)
+			.toArray();
+
+		final int[] b = result.getResult().stream()
+			.mapToInt(EnumGene::getAllele)
+			.toArray();
+
+		Assert.assertNotEquals(a, b);
+
+	}
+
+}