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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    *
    9    *      http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  package org.apache.commons.geometry.euclidean.threed.rotation;
    18
    19  import org.apache.commons.geometry.euclidean.threed.Vector3D;
    20  import org.junit.Assert;
    21  import org.junit.Test;
    22
    23  public class AxisSequenceTest {
    24
    25      @Test
    26      public void testAxes() {
    27          // act/assert
    28          for (final AxisSequence axes : AxisSequence.values()) {
    29              checkAxes(axes);
    30          }
    31      }
    32
    33      private void checkAxes(final AxisSequence axes) {
    34          // make sure that the name of the enum value matches
    35          // the axes it contains
    36          final String name = axes.toString();
    37
    38          final Vector3D a1 = getAxisForName(name.substring(0, 1));
    39          final Vector3D a2 = getAxisForName(name.substring(1, 2));
    40          final Vector3D a3 = getAxisForName(name.substring(2, 3));
    41
    42          // assert
    43          Assert.assertEquals(a1, axes.getAxis1());
    44          Assert.assertEquals(a2, axes.getAxis2());
    45          Assert.assertEquals(a3, axes.getAxis3());
    46
    47          Assert.assertArrayEquals(new Vector3D[] {a1, a2, a3}, axes.toArray());
    48      }
    49
    50      private Vector3D getAxisForName(final String name) {
    51          if ("X".equals(name)) {
    52              return Vector3D.Unit.PLUS_X;
    53          }
    54          if ("Y".equals(name)) {
    55              return Vector3D.Unit.PLUS_Y;
    56          }
    57          if ("Z".equals(name)) {
    58              return Vector3D.Unit.PLUS_Z;
    59          }
    60          throw new IllegalArgumentException("Unknown axis: " + name);
    61      }
    62  }