/* Copyright 2002-2017 CS Systèmes d'Information
* Licensed to CS Systèmes d'Information (CS) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* CS 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.orekit.data;
import java.util.Arrays;
import org.hipparchus.random.RandomGenerator;
import org.hipparchus.random.Well1024a;
import org.junit.Assert;
import org.junit.Test;
public class NutationCodecTest {
@Test
public void testKeySymmetry() {
RandomGenerator random = new Well1024a(0x8fef7f6f99ad5d56l);
int[] multipliers = new int[15];
for (int i = 0; i < 100000; ++i) {
Arrays.fill(multipliers, 0);
int nb = 1 + random.nextInt(7);
for (int k = 0; k < nb; ++k) {
int index = random.nextInt(15);
while (multipliers[index] == 0) {
multipliers[index] = random.nextInt(128) - 64;
}
}
long key = NutationCodec.encode(multipliers);
int[] rebuilt = NutationCodec.decode(key);
for (int k = 0; k < multipliers.length; ++k) {
Assert.assertEquals(multipliers[k], rebuilt[k]);
}
}
}
}