Added testing of more variations of date formats (#327).

Author: gmessner

src/test/java/org/gitlab4j/api/TestISO8601.java

@@ -10,13 +10,51 @@
 
 public class TestISO8601 {
 
-    private static final String SPACEY_GITLAB_DATE = "2018-03-12 10:16:46 +0800";
-    private static final String ISO8601_GITLAB_DATE ="2018-03-12T10:16:46+0800";
+    private static final String SPACEY_GITLAB_DATE = "2018-03-12 10:16:46 +0700";
+    private static final String ISO8601_GITLAB_DATE ="2018-03-12T10:16:46+0700";
+
+    private static final String DATE_ONLY = "2018-03-12";
+    private static final String DATE_AT_MIDNIGHT ="2018-03-12T00:00:00Z";
+
+    private static final String SPACEY_GITLAB_DATE_WITH_MSEC = "2018-03-12 10:16:46.123 +0700";
+    private static final String ISO8601_GITLAB_DATE_WITH_MSEC ="2018-03-12T10:16:46.123+0700";
+
+    private static final String ISO8601_DATE_MSEC = "2018-03-12T10:16:46.123Z";
+    private static final String ISO8601_DATE_OFFSET_COLON = "2018-03-12T10:16:46.123+00:00";
+    private static final String ISO8601_GITLAB_DATE_MSEC = "2018-03-12T03:16:46.123-0700";
 
     @Test
     public void testGitlabDateParse() throws ParseException {
         Date spaceyDate = ISO8601.toDate(SPACEY_GITLAB_DATE);
         Date gitlabDate = ISO8601.toDate(ISO8601_GITLAB_DATE);
-        assertEquals(spaceyDate, gitlabDate);        
+        assertEquals(spaceyDate, gitlabDate);
+    }
+
+    @Test
+    public void testDateOnlyParse() throws ParseException {
+        Date dateOnly = ISO8601.toDate(DATE_ONLY);
+        Date dateAtMidnight = ISO8601.toDate(DATE_AT_MIDNIGHT);
+        assertEquals(dateOnly, dateAtMidnight);
+    }
+
+    @Test
+    public void testGitlabMsecDateParse() throws ParseException {
+        Date spaceyDate = ISO8601.toDate(SPACEY_GITLAB_DATE_WITH_MSEC);
+        Date gitlabDate = ISO8601.toDate(ISO8601_GITLAB_DATE_WITH_MSEC);
+        assertEquals(spaceyDate, gitlabDate);
+    }
+
+    @Test
+    public void testMsecDateParse() throws ParseException {
+        Date msecDate = ISO8601.toDate(ISO8601_DATE_MSEC);
+        Date gitlabMsecDate = ISO8601.toDate(ISO8601_GITLAB_DATE_MSEC);
+        assertEquals(msecDate, gitlabMsecDate);
+    }
+
+    @Test
+    public void testOffsetColonDateParse() throws ParseException {
+        Date msecDate = ISO8601.toDate(ISO8601_DATE_MSEC);
+        Date gitlabMsecDate = ISO8601.toDate(ISO8601_DATE_OFFSET_COLON);
+        assertEquals(msecDate, gitlabMsecDate);
     }
 }