diff -r 2d3834df64ab -r fb7c1013189e server/test/data-schema2sql/schema/Dates.py
--- a/server/test/data-schema2sql/schema/Dates.py	Mon May 18 11:36:07 2015 +0200
+++ b/server/test/data-schema2sql/schema/Dates.py	Sun Mar 22 19:39:29 2015 +0100
@@ -17,11 +17,12 @@
 # with yams. If not, see <http://www.gnu.org/licenses/>.
 from datetime import time, date
 from yams.buildobjs import EntityType, Datetime, Date, Time
+from yams.constraints import TODAY, BoundaryConstraint
 
 class Datetest(EntityType):
     dt1 = Datetime(default=u'now')
     dt2 = Datetime(default=u'today')
-    d1  = Date(default=u'today')
+    d1  = Date(default=u'today', constraints=[BoundaryConstraint('<=', TODAY())])
     d2  = Date(default=date(2007, 12, 11))
     t1  = Time(default=time(8, 40))
     t2  = Time(default=time(9, 45))