From c4fd005da4d41ea4efffecb8a0ac7b1a93d6cc8f Mon Sep 17 00:00:00 2001
From: Dassi Orleando <me@dassiorleando.xyz>
Date: Mon, 28 Aug 2017 05:23:07 +0100
Subject: [PATCH] Improve dates diff: for dates and datetimes

---
 .../java/com/baeldung/DateDiffUnitTest.java   | 40 +++++++++++++++----
 1 file changed, 32 insertions(+), 8 deletions(-)

diff --git a/core-java/src/test/java/com/baeldung/DateDiffUnitTest.java b/core-java/src/test/java/com/baeldung/DateDiffUnitTest.java
index 40b7fac30d..ae9bae0050 100644
--- a/core-java/src/test/java/com/baeldung/DateDiffUnitTest.java
+++ b/core-java/src/test/java/com/baeldung/DateDiffUnitTest.java
@@ -1,12 +1,14 @@
 package com.baeldung;
 
 import org.joda.time.DateTime;
+import org.joda.time.Interval;
 import org.junit.Test;
 
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.time.Duration;
-import java.time.ZonedDateTime;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
 import java.util.Date;
 import java.util.Locale;
 import java.util.TimeZone;
@@ -30,8 +32,8 @@ public class DateDiffUnitTest {
 
     @Test
     public void givenTwoDatesInJava8_whenDifferentiating_thenWeGetSix() {
-        ZonedDateTime now = ZonedDateTime.now();
-        ZonedDateTime sixDaysBehind = now.minusDays(6);
+        LocalDate now = LocalDate.now();
+        LocalDate sixDaysBehind = now.minusDays(6);
 
         Duration duration = Duration.between(now, sixDaysBehind);
         long diff = Math.abs(duration.toDays());
@@ -40,12 +42,34 @@ public class DateDiffUnitTest {
     }
 
     @Test
-    public void givenTwoDatesInJodaTime_whenDifferentiating_thenWeGetSix() {
-        DateTime now = DateTime.now();
-        DateTime sixDaysBehind = now.minusDays(6);
+    public void givenTwoDateTimesInJava8_whenDifferentiating_thenWeGetSix() {
+        LocalDateTime now = LocalDateTime.now();
+        LocalDateTime sixMinutesBehind = now.minusMinutes(6);
 
-        org.joda.time.Duration duration = new org.joda.time.Duration(now, sixDaysBehind);
-        long diff = Math.abs(duration.getStandardDays());
+        Duration duration = Duration.between(now, sixMinutesBehind);
+        long diff = Math.abs(duration.toMinutes());
+
+        assertEquals(diff, 6);
+    }
+
+    @Test
+    public void givenTwoDatesInJodaTime_whenDifferentiating_thenWeGetSix() {
+        org.joda.time.LocalDate now = org.joda.time.LocalDate.now();
+        org.joda.time.LocalDate sixDaysBehind = now.minusDays(6);
+
+        org.joda.time.Period period = new org.joda.time.Period(now, sixDaysBehind);
+        long diff = Math.abs(period.getDays());
+
+        assertEquals(diff, 6);
+    }
+
+    @Test
+    public void givenTwoDateTimesInJodaTime_whenDifferentiating_thenWeGetSix() {
+        org.joda.time.LocalDateTime now = org.joda.time.LocalDateTime.now();
+        org.joda.time.LocalDateTime sixMinutesBehind = now.minusMinutes(6);
+
+        org.joda.time.Period period = new org.joda.time.Period(now, sixMinutesBehind);
+        long diff = Math.abs(period.getDays());
 
         assertEquals(diff, 6);
     }