code: /*******************************************************************************
   * Copyright 2018 572682
   * 
   * 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.
   ******************************************************************************/
  package us.dot.its.jpo.ode.plugin.j2735.builders;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  import java.lang.reflect.Constructor;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Modifier;
  import java.math.BigDecimal;
  import org.junit.Test;
  import com.fasterxml.jackson.databind.JsonNode;
  import us.dot.its.jpo.ode.plugin.j2735.J2735BumperHeights;
  import us.dot.its.jpo.ode.util.XmlUtils;
  import us.dot.its.jpo.ode.util.XmlUtils.XmlUtilsException;
  
  /**
   * -- Summary -- JUnit test class for BumperHeightsBuilder
   * 
   * Verifies that BumperHeightsBuilder properly converts a generic JsonNode
   * object into a compliant J2735BumperHeights object per ASN.1 specifications.
   * 
   * -- Documentation --
   * 
   * Data Element: DE_BumperHeight Use: The DE_Bumper Height data element conveys
   * the height of one of the bumpers of the vehicle or object. In cases of
   * vehicles with complex bumper shapes, the center of the mass of the bumper
   * (where the bumper can best absorb an impact) should be used. ASN.1
   * Representation: BumperHeight ::= INTEGER (0..127) -- in units of 0.01 meters
   * from ground surface.
   */
  public class BumperHeightsBuilderTest {
  
     /**
      * Test that minimum bumper height 0 returns (0.00)
      */
     @Test
     public void shouldReturnMinimumBumperHeights() {
  
        JsonNode testBumperHeights = null;
  
        int frontInput = 0;
        int rearInput = 0;
        try {
           testBumperHeights = (JsonNode) XmlUtils.fromXmlS(
                 "<heights><front>" + frontInput + "</front><rear>" + rearInput + "</rear></heights>", JsonNode.class);
        } catch (XmlUtilsException e) {
           fail("XML parsing error:" + e);
        }
  
        BigDecimal expectedValue = BigDecimal.ZERO.setScale(2);
  
        J2735BumperHeights BH = BumperHeightsBuilder.genericBumperHeights(testBumperHeights);
  
        assertEquals("Minimum front bumper height 0 should return 0:", expectedValue, BH.getFront());
        assertEquals("Minimum rear bumper height 0 should return 0:", expectedValue, BH.getRear());
  
     }
  
     /**
      * Test that maximum bumper height 127 returns 1.27
      */
     @Test
     public void shouldReturnMaximumBumperHeights() {
  
        JsonNode testBumperHeights = null;
  
        int frontInput = 127;
        int rearInput = 127;
        try {
           testBumperHeights = (JsonNode) XmlUtils.fromXmlS(
                 "<heights><front>" + frontInput + "</front><rear>" + rearInput + "</rear></heights>", JsonNode.class);
        } catch (XmlUtilsException e) {
           fail("XML parsing error:" + e);
        }
  
        BigDecimal expectedValue = BigDecimal.valueOf(1.27);
  
        J2735BumperHeights BH = BumperHeightsBuilder.genericBumperHeights(testBumperHeights);
  
        assertEquals("Maximum front bumper height 127 should return 1.27:", expectedValue, BH.getFront());
        assertEquals("Maximum rear bumper height 127 should return 1.27:", expectedValue, BH.getRear());
  
     }
  
     /**
      * Test that known bumper height value 85 returns 0.85
      */
     @Test
     public void shouldReturnKnownBumperHeights() {
  
        JsonNode testBumperHeights = null;
  
        int frontInput = 85;
        int rearInput = 85;
        try {
           testBumperHeights = (JsonNode) XmlUtils.fromXmlS(
                 "<heights><front>" + frontInput + "</front><rear>" + rearInput + "</rear></heights>", JsonNode.class);
        } catch (XmlUtilsException e) {
           fail("XML parsing error:" + e);
        }
  
        BigDecimal expectedValue = BigDecimal.valueOf(0.85);
  
        J2735BumperHeights BH = BumperHeightsBuilder.genericBumperHeights(testBumperHeights);
  
        assertEquals("Maximum front bumper height 85 should return 0.85:", expectedValue, BH.getFront());
        assertEquals("Maximum rear bumper height 85 should return 0.85:", expectedValue, BH.getRear());
  
     }
  
     /**
      * Test that a front bumper height value below 0 throws IllegalArgumentException
      * Rear bumper height is the independent variable for this test and is set to 0
      */
     @Test
     public void shouldThrowExceptionBumperHeightsFrontBelowLowerBound() {
  
        JsonNode testBumperHeights = null;
  
        int frontInput = -1;
        int rearInput = 0;
        try {
           testBumperHeights = (JsonNode) XmlUtils.fromXmlS(
                 "<heights><front>" + frontInput + "</front><rear>" + rearInput + "</rear></heights>", JsonNode.class);
        } catch (XmlUtilsException e) {
           fail("XML parsing error:" + e);
        }
  
        try {
           BumperHeightsBuilder.genericBumperHeights(testBumperHeights);
           fail("Expected IllegalArgumentException");
        } catch (RuntimeException e) {
           assertEquals(IllegalArgumentException.class, e.getClass());
        }
  
     }
  
     /**
      * Test that a rear bumper height value below 0 throws IllegalArgumentException
      * front bumper height is the independent variable for this test and is set to 0
      */
     @Test
     public void shouldThrowExceptionBumperHeightsRearBelowLowerBound() {
  
        JsonNode testBumperHeights = null;
  
        int frontInput = 0;
        int rearInput = -1;
        try {
           testBumperHeights = (JsonNode) XmlUtils.fromXmlS(
                 "<heights><front>" + frontInput + "</front><rear>" + rearInput + "</rear></heights>", JsonNode.class);
        } catch (XmlUtilsException e) {
           fail("XML parsing error:" + e);
        }
  
        try {
           BumperHeightsBuilder.genericBumperHeights(testBumperHeights);
           fail("Expected IllegalArgumentException");
        } catch (RuntimeException e) {
           assertEquals(IllegalArgumentException.class, e.getClass());
        }
  
     }
  
     /**
      * Test that a front bumper height value above 127 throws
      * IllegalArgumentException rear bumper height is the independent variable for
      * this test and is set to 0
      */
     @Test
     public void shouldThrowExceptionBumperHeightsFrontAboveUpperBound() {
  
        JsonNode testBumperHeights = null;
  
        int frontInput = 128;
        int rearInput = 0;
        try {
           testBumperHeights = (JsonNode) XmlUtils.fromXmlS(
                 "<heights><front>" + frontInput + "</front><rear>" + rearInput + "</rear></heights>", JsonNode.class);
        } catch (XmlUtilsException e) {
           fail("XML parsing error:" + e);
        }
  
        try {
           BumperHeightsBuilder.genericBumperHeights(testBumperHeights);
           fail("Expected IllegalArgumentException");
        } catch (RuntimeException e) {
           assertEquals(IllegalArgumentException.class, e.getClass());
        }
  
     }
  
     /**
      * Test that a rear bumper height value above 127 throws
      * IllegalArgumentException front bumper height is the independent variable for
      * this test and is set to 0
      */
     @Test
     public void shouldThrowExceptionBumperHeightsRearAboveUpperBound() {
  
        JsonNode testBumperHeights = null;
  
        int frontInput = 0;
        int rearInput = 128;
        try {
           testBumperHeights = (JsonNode) XmlUtils.fromXmlS(
                 "<heights><front>" + frontInput + "</front><rear>" + rearInput + "</rear></heights>", JsonNode.class);
        } catch (XmlUtilsException e) {
           fail("XML parsing error:" + e);
        }
  
        try {
           BumperHeightsBuilder.genericBumperHeights(testBumperHeights);
           fail("Expected IllegalArgumentException");
        } catch (RuntimeException e) {
           assertEquals(IllegalArgumentException.class, e.getClass());
        }
  
     }
  
     @Test
     public void testConstructorIsPrivate()
           throws NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {
        Constructor<BumperHeightsBuilder> constructor = BumperHeightsBuilder.class.getDeclaredConstructor();
        assertTrue(Modifier.isPrivate(constructor.getModifiers()));
        constructor.setAccessible(true);
        try {
           constructor.newInstance();
           fail("Expected IllegalAccessException.class");
        } catch (Exception e) {
           assertEquals(InvocationTargetException.class, e.getClass());
        }
     }
  
  }
  