[glib/wip/rancell/iso8601] Check strings containing only times fail

[Robert Ancell <rancell src gnome org>]

commit abbc36300bf4f005e0d4cb20926f68e8bae6afb8
Author: Robert Ancell <robert ancell canonical com>
Date:   Mon Aug 29 13:01:34 2016 +1200

    Check strings containing only times fail

 glib/tests/gdatetime.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/glib/tests/gdatetime.c b/glib/tests/gdatetime.c
index 27887f2..3fd10e3 100644
--- a/glib/tests/gdatetime.c
+++ b/glib/tests/gdatetime.c
@@ -589,6 +589,21 @@ test_GDateTime_new_from_iso8601 (void)
   g_assert_cmpint (flags, ==, G_DATE_TIME_PARSE_HOUR | G_DATE_TIME_PARSE_MINUTE | G_DATE_TIME_PARSE_SECOND | 
G_DATE_TIME_PARSE_SUBSECOND);
   g_date_time_unref (dt);
 
+  /* Can't parse time without date */
+  dt = g_date_time_new_from_iso8601 ("22", &flags);
+  g_assert (dt == NULL);
+  dt = g_date_time_new_from_iso8601 ("22:10", &flags);
+  g_assert (dt == NULL);
+  dt = g_date_time_new_from_iso8601 ("22:10:42", &flags);
+  g_assert (dt == NULL);
+  dt = g_date_time_new_from_iso8601 ("22:10:42.123456", &flags);
+  g_assert (dt == NULL);
+  dt = g_date_time_new_from_iso8601 ("2210", &flags);
+  g_assert (dt == NULL);
+  dt = g_date_time_new_from_iso8601 ("221042", &flags);
+  g_assert (dt == NULL);
+  dt = g_date_time_new_from_iso8601 ("221042.123456", &flags);
+
   dt = g_date_time_new_from_iso8601 ("2016-08-24T22", &flags);
   ASSERT_DATE (dt, 2016, 8, 24);
   ASSERT_TIME (dt, 22, 0, 0);