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  package org.apache.cayenne.access;
  
  import org.apache.cayenne.ObjectContext;
  import org.apache.cayenne.di.Inject;
  import org.apache.cayenne.query.EJBQLQuery;
  import org.apache.cayenne.testdo.legacy_datetime.DateTestEntity;
  import org.apache.cayenne.unit.UnitDbAdapter;
  import org.apache.cayenne.unit.di.runtime.CayenneProjects;
  import org.apache.cayenne.unit.di.runtime.RuntimeCase;
  import org.apache.cayenne.unit.di.runtime.UseCayenneRuntime;
  import org.junit.Test;
  
  import java.util.Calendar;
  import java.util.List;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  @UseCayenneRuntime(CayenneProjects.LEGACY_DATE_TIME_PROJECT)
  public class DataContextEJBQLDateTimeFunctionalExpressionsIT extends RuntimeCase {
  
      @Inject
      private ObjectContext context;
  
      @Inject
      private UnitDbAdapter unitDbAdapter;
  
      @Test
      public void testCURRENT_DATE() {
  
          Calendar cal = Calendar.getInstance();
          int year = cal.get(Calendar.YEAR);
  
          DateTestEntity o1 = context.newObject(DateTestEntity.class);
          cal.set(year - 3, 1, 1);
          o1.setDateColumn(cal.getTime());
  
          DateTestEntity o2 = context.newObject(DateTestEntity.class);
          cal.set(year + 3, 1, 1);
          o2.setDateColumn(cal.getTime());
  
          context.commitChanges();
  
          EJBQLQuery query = new EJBQLQuery(
                  "SELECT d FROM DateTestEntity d WHERE d.dateColumn > CURRENT_DATE");
          List<?> objects = context.performQuery(query);
          assertEquals(1, objects.size());
          assertTrue(objects.contains(o2));
      }
  
      @Test
      public void testCURRENT_TIME() {
  
          Calendar cal = Calendar.getInstance();
          int year = cal.get(Calendar.YEAR);
          int month = cal.get(Calendar.MONTH);
          int day = cal.get(Calendar.DAY_OF_MONTH);
  
          DateTestEntity o1 = context.newObject(DateTestEntity.class);
          cal.set(year, month, day, 0, 0, 0);
          o1.setTimeColumn(cal.getTime());
  
          DateTestEntity o2 = context.newObject(DateTestEntity.class);
          cal.set(year, month, day, 23, 59, 59);
          o2.setTimeColumn(cal.getTime());
  
          context.commitChanges();
  
          EJBQLQuery query = new EJBQLQuery(
                  "SELECT d FROM DateTestEntity d WHERE d.timeColumn < CURRENT_TIME");
          List<?> objects = context.performQuery(query);
          if(!unitDbAdapter.supportsTimeSqlType()) {
              // check only that query is executed without error
              // result will be invalid most likely as DB doesn't support TIME data type
              return;
          }
          assertEquals(1, objects.size());
          assertTrue(objects.contains(o1));
      }
  
      @Test
      public void testCURRENT_TIMESTAMP() {
  
          Calendar cal = Calendar.getInstance();
          int year = cal.get(Calendar.YEAR);
          int month = cal.get(Calendar.MONTH);
          int date = cal.get(Calendar.DATE);
  
          DateTestEntity o1 = context.newObject(DateTestEntity.class);
          cal.set(year, month, date, 0, 0, 0);
          o1.setTimestampColumn(cal.getTime());
  
          DateTestEntity o2 = context.newObject(DateTestEntity.class);
          cal.set(year, month, date, 23, 59, 59);
          o2.setTimestampColumn(cal.getTime());
  
          context.commitChanges();
  
          EJBQLQuery query = new EJBQLQuery(
                  "SELECT d FROM DateTestEntity d WHERE d.timestampColumn < CURRENT_TIMESTAMP");
          List<?> objects = context.performQuery(query);
          assertEquals(1, objects.size());
          assertTrue(objects.contains(o1));
      }
  }
  