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.io.IOException;
  import java.lang.reflect.Constructor;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Modifier;
  import java.math.BigDecimal;
  import java.math.RoundingMode;
  
  import org.junit.Test;
  
  import com.fasterxml.jackson.core.JsonProcessingException;
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  
  import us.dot.its.jpo.ode.util.JsonUtils;
  
  public class AngleBuilderTest {
  
     /**
      * Tests that the minimum input angle (0) returns the minimum decimal value
      * (0)
      * 
      * @throws IOException
      * @throws JsonProcessingException
      */
     @Test
     public void shouldReturnZeroAngle() throws JsonProcessingException, IOException {
  
        ObjectMapper mapper = new ObjectMapper();
        JsonNode testInput = mapper.readTree("0");
  
        BigDecimal expectedValue = BigDecimal.ZERO.setScale(4);
  
        BigDecimal actualValue = AngleBuilder.genericAngle(testInput);
  
        assertEquals(expectedValue, actualValue);
  
     }
  
     /**
      * Tests that the max input angle (28799) returns the max decimal value
      * (359.9875)
      * 
      * @throws IOException
      * @throws JsonProcessingException
      */
     @Test
     public void shouldReturnMaxAngle() throws JsonProcessingException, IOException {
  
        ObjectMapper mapper = new ObjectMapper();
        JsonNode testInput = mapper.readTree("28799");
  
        BigDecimal expectedValue = BigDecimal.valueOf(359.9875);
  
        BigDecimal actualValue = AngleBuilder.genericAngle(testInput);
  
        assertEquals(expectedValue, actualValue);
  
     }
  
     /**
      * Tests that known input angle (14400) returns the max decimal value (180.0)
      * 
      * @throws IOException
      * @throws JsonProcessingException
      */
     @Test
     public void shouldReturnKnownAngle() throws JsonProcessingException, IOException {
  
        ObjectMapper mapper = new ObjectMapper();
        JsonNode testInput = mapper.readTree("14400");
  
        BigDecimal expectedValue = BigDecimal.valueOf(180).setScale(4);
  
        BigDecimal actualValue = AngleBuilder.genericAngle(testInput);
  
        assertEquals(expectedValue, actualValue);
  
     }
  
     /**
      * Tests that input angle (28800) returns (null) per ASN.1 specification: "A
      * value of 28800 shall be used when Angle is unavailable"
      * 
      * @throws IOException
      * @throws JsonProcessingException
      */
     @Test
     public void shouldReturnNullAngle() throws JsonProcessingException, IOException {
  
        ObjectMapper mapper = new ObjectMapper();
        JsonNode testInput = mapper.readTree("28800");
        BigDecimal expectedValue = null;
  
        BigDecimal actualValue = AngleBuilder.genericAngle(testInput);
  
        assertEquals(expectedValue, actualValue);
  
     }
  
     /**
      * Test that an input angle greater than 28800 throws exception
      * 
      * @throws IOException
      * @throws JsonProcessingException
      */
     @Test
     public void shouldThrowExceptionAboveUpperBound() throws JsonProcessingException, IOException {
  
        ObjectMapper mapper = new ObjectMapper();
        JsonNode testInput = mapper.readTree("28801");
  
        try {
           AngleBuilder.genericAngle(testInput);
           fail("Expected IllegalArgumentException");
        } catch (Exception e) {
           assertTrue(e.getClass().equals(IllegalArgumentException.class));
        }
     }
  
     /**
      * Test that an input angle less than 0 throws exception
      * 
      * @throws IOException
      * @throws JsonProcessingException
      */
     @Test
     public void shouldThrowExceptionBelowLowerBound() throws JsonProcessingException, IOException {
  
        ObjectMapper mapper = new ObjectMapper();
        JsonNode testInput = mapper.readTree("-1");
  
        try {
           AngleBuilder.genericAngle(testInput);
           fail("Expected IllegalArgumentException");
        } catch (Exception e) {
           assertTrue(e.getClass().equals(IllegalArgumentException.class));
        }
     }
  
     @Test
     public void testConstructorIsPrivate()
           throws NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {
        Constructor<AngleBuilder> constructor = AngleBuilder.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());
        }
     }
     
     @Test
     public void testJsonNode() throws JsonProcessingException, IOException {
  
        
  
        JsonNode expectedValue = JsonUtils.newObjectNode("angle", 
                BigDecimal.valueOf(25).divide(BigDecimal.valueOf(0.0125), 0, RoundingMode.HALF_UP).intValue());
  
        JsonNode actualValue = AngleBuilder.angle(25);
  
        assertEquals(expectedValue, actualValue);
  
     }
     
     @Test
     public void testlongToDecimalNull() throws JsonProcessingException, IOException {
  
        
  
  	   BigDecimal expectedValue = null;
  
        BigDecimal actualValue = AngleBuilder.longToDecimal((long)28800);
  
        assertEquals(expectedValue, actualValue);
  
     }
  
  }
  