@Test
public void testMergeableMethod() {
Tweet obj1 = dod.getSpecificTweet(1);
Tweet obj2 = dod.getSpecificTweet(2);
// Ensure we've got no merge at start.
Assert.assertNull(obj1.getMergeResult());
Assert.assertNull(obj2.getMergeResult());
// Prepare values.
obj1.setAuthor("lbroudoux");
obj2.setAuthor("someone");
obj1.setContent(null);
obj2.setContent("Someone else content");
obj1.merge();
obj2.merge();
// Merge and check references tracking.
Tweet merge = obj1.merge(obj2);
Assert.assertNotNull(merge.getMergeMainReference());
Assert.assertEquals(obj1, merge.getMergeMainReference());
Assert.assertNotNull(merge.getMergeSecondReference());
Assert.assertEquals(obj2, merge.getMergeSecondReference());
Assert.assertNotNull(obj1.getMergeResult());
Assert.assertEquals(merge, obj1.getMergeResult());
Assert.assertNotNull(obj2.getMergeResult());
Assert.assertEquals(merge, obj2.getMergeResult());
// Check verification methods.
Assert.assertTrue(merge.isMergeResult());
Assert.assertFalse(obj1.isMergeResult());
Assert.assertFalse(obj2.isMergeResult());
Assert.assertFalse(merge.wasMerged());
Assert.assertTrue(obj1.wasMerged());
Assert.assertTrue(obj2.wasMerged());
// Check value merging.
Assert.assertEquals("lbroudoux", merge.getAuthor());
Assert.assertEquals("Someone else content", merge.getContent());
}
