1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/java/org/traccar/helper/DateUtilTest.java b/src/test/java/org/traccar/helper/DateUtilTest.java
new file mode 100644
index 000000000..ec42e71ae
--- /dev/null
+++ b/src/test/java/org/traccar/helper/DateUtilTest.java
@@ -0,0 +1,30 @@
+package org.traccar.helper;
+
+import org.junit.Test;
+
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Calendar;
+
+import static org.junit.Assert.assertEquals;
+
+public class DateUtilTest {
+    
+    @Test
+    public void testCorrectDate() throws ParseException {
+
+        DateFormat f = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+
+        assertEquals(f.parse("2015-12-31 23:59:59"),
+                DateUtil.correctDate(f.parse("2016-01-01 00:00:01"), f.parse("2016-01-01 23:59:59"), Calendar.DAY_OF_MONTH));
+
+        assertEquals(f.parse("2016-01-01 00:00:02"),
+                DateUtil.correctDate(f.parse("2016-01-01 00:00:01"), f.parse("2016-01-01 00:00:02"), Calendar.DAY_OF_MONTH));
+
+        assertEquals(f.parse("2016-01-01 00:00:02"),
+                DateUtil.correctDate(f.parse("2016-01-01 00:00:01"), f.parse("2015-12-31 00:00:02"), Calendar.DAY_OF_MONTH));
+
+    }
+
+}