content: package org.opencv.test.core;
  
  import org.opencv.core.DMatch;
  
  import junit.framework.TestCase;
  
  public class DMatchTest extends TestCase {
      public void testDMatch() {
          new DMatch();
      }
  
      public void testDMatchIntIntFloat() {
          DMatch dm1 = new DMatch(1, 4, 4.0f);
  
          assertEquals(1, dm1.queryIdx);
          assertEquals(4, dm1.trainIdx);
          assertEquals(4.0f, dm1.distance);
      }
  
      public void testDMatchIntIntIntFloat() {
          DMatch dm2 = new DMatch(2, 6, -1, 8.0f);
  
          assertEquals(2, dm2.queryIdx);
          assertEquals(6, dm2.trainIdx);
          assertEquals(-1, dm2.imgIdx);
          assertEquals(8.0f, dm2.distance);
      }
  
      public void testLessThan() {
          DMatch dm1 = new DMatch(1, 4, 4.0f);
          DMatch dm2 = new DMatch(2, 6, -1, 8.0f);
          assertTrue(dm1.lessThan(dm2));
      }
  
      public void testToString() {
          DMatch dm2 = new DMatch(2, 6, -1, 8.0f);
  
          String actual = dm2.toString();
  
          String expected = "DMatch [queryIdx=2, trainIdx=6, imgIdx=-1, distance=8.0]";
          assertEquals(expected, actual);
      }
  
  }
  