#1634 ENH: Add convenience expressions "equal to or null" eqOrNull()

src/test/java/org/tests/basic/TestQueryWhereInRange.java

@@ -30,6 +30,22 @@ public class TestQueryWhereInRange extends BaseTestCase {
     assertThat(sqlOf(query)).contains("where (t0.order_date >= ? and t0.order_date < ?) and ");
   }
 
+  @Test
+  public void eqOrNull() {
+
+    ResetBasicData.reset();
+
+    LocalDate today = LocalDate.now();
+
+    Query<Order> query = DB.find(Order.class)
+      .where().eqOrNull("orderDate", today)
+      .query();
+
+    query.findList();
+
+    assertThat(query.getGeneratedSql()).contains("where (t0.order_date = ? or t0.order_date is null)");
+  }
+
   @Test
   public void gtOrNull() {