1 files changed, 15 insertions, 7 deletions
diff --git a/tutorius/constraints.py b/tutorius/constraints.py
index f2e324f..455ede3 100644
--- a/tutorius/constraints.py
+++ b/tutorius/constraints.py
@@ -205,13 +205,21 @@ class FileConstraint(Constraint):
             raise FileConstraintError("Non-existing file : %s"%value)
         return
 
-class SameTypeConstraint(Exception):
+
+class SameTypeConstraintError(Exception):
     pass
      
-class SameTypeConstraint(ValueConstraint):
-    pass
-    #def validate(self, typePropertie):  
- 	 #    if self.limit != typePropertie:
- 	     #    raise SameTypeConstraint("Value with a diffferent type")
- 	     #return        
+class SameTypeConstraint(Constraint):
+    """
+    Ensures that the list is not empty and that properties of the list have the same type. 
+    """
+   
+    def validate(self, value):  
+        if len(value)==0:
+            raise SameTypeConstraintError("The list is empty")
+        for i in value:
+            if i.type != value[0].type: 
+                raise SameTypeConstraintError("Properties have diffferent type")
+        return
+