Add test for no days between

src/time_tuple.rs

@@ -265,13 +265,13 @@ impl Duration {
         let smaller = if dt1 < dt2 { dt1 } else { dt2 };
         let greater = if dt1 < dt2 { dt2 } else { dt1 };
         let days_between = greater.get_date().to_days() - smaller.get_date().to_days();
-        let time_between = if days_between == 0 {
+        if days_between == 0 {
             Duration::from(greater.get_time()) - Duration::from(smaller.get_time())
         } else {
-            Duration::from(greater.get_time()) + Duration::new(24, 0, 0)
-                - Duration::from(smaller.get_time())
-        };
-        time_between + Duration::new(24 * (days_between - 1), 0, 0)
+            let time_between = Duration::from(greater.get_time()) + Duration::new(24, 0, 0)
+                - Duration::from(smaller.get_time());
+            time_between + Duration::new(24 * (days_between - 1), 0, 0)
+        }
     }
 
     pub fn get_hours(self) -> u32 {

tests/date_time_tuple_tests.rs

@@ -93,6 +93,17 @@ fn test_between_max_cant_overflow() {
     .to_seconds();
 }
 
+#[test]
+fn test_no_days_between() {
+    assert_eq!(
+        Duration::new(1, 0, 0),
+        Duration::between(
+            DateTimeTuple::new(DateTuple::new(0, 1, 1).unwrap(), TimeTuple::new(0, 0, 0)),
+            DateTimeTuple::new(DateTuple::new(0, 1, 1).unwrap(), TimeTuple::new(1, 0, 0),),
+        )
+    );
+}
+
 #[test]
 fn test_days_between() {
     assert_eq!(