Adding min/max_elements

libyang/schema.py

@@ -1325,6 +1325,12 @@ def must_conditions(self) -> Iterator[str]:
         for must in ly_array_iter(pdata.musts):
             yield c2str(must.arg.str)
 
+    def max_elements(self) -> int:
+        return self.cdata_leaflist.max if self.cdata_leaflist.max != 0 else None
+
+    def min_elements(self) -> int:
+        return self.cdata_leaflist.min
+
     def __str__(self):
         return "%s %s" % (self.name(), self.type().name())
 
@@ -1416,6 +1422,12 @@ def must_conditions(self) -> Iterator[str]:
         for must in ly_array_iter(pdata.musts):
             yield c2str(must.arg.str)
 
+    def max_elements(self) -> int:
+        return self.cdata_list.max if self.cdata_list.max != 0 else None
+
+    def min_elements(self) -> int:
+        return self.cdata_list.min
+
     def __str__(self):
         return "%s [%s]" % (self.name(), ", ".join(k.name() for k in self.keys()))
 

tests/test_schema.py

@@ -328,6 +328,13 @@ def test_list_parent(self):
         self.assertIsInstance(parent, SContainer)
         self.assertEqual(parent.name(), "conf")
 
+    def test_list_min_max(self):
+        self.ctx.load_module("yolo-nodetypes")
+        self.list = next(self.ctx.find_path("/yolo-nodetypes:conf/list1"))
+        self.assertIsInstance(self.list, SList)
+        self.assertEqual(self.list.min_elements(), 2)
+        self.assertEqual(self.list.max_elements(), 10)
+
 
 # -------------------------------------------------------------------------------------
 class RpcTest(unittest.TestCase):
@@ -515,3 +522,10 @@ def test_leaflist_defaults(self):
         leaflist = next(self.ctx.find_path("/yolo-nodetypes:conf/ratios"))
         for d in leaflist.defaults():
             self.assertIsInstance(d, float)
+
+    def test_leaf_list_min_max(self):
+        self.ctx.load_module("yolo-nodetypes")
+        node = next(self.ctx.find_path("/yolo-nodetypes:conf/leaf-list1"))
+        self.assertIsInstance(node, SLeafList)
+        self.assertEqual(node.min_elements(), 3)
+        self.assertEqual(node.max_elements(), 11)

tests/yang/yolo/yolo-nodetypes.yang

@@ -28,5 +28,27 @@ module yolo-nodetypes {
       default 2.5;
       default 2.6;
     }
+
+    list list1 {
+      key leaf1;
+      unique "leaf2 leaf3";
+      min-elements 2;
+      max-elements 10;
+      leaf leaf1 {
+        type string;
+      }
+      leaf leaf2 {
+        type string;
+      }
+      leaf leaf3 {
+        type string;
+      }
+    }
+
+    leaf-list leaf-list1 {
+      type string;
+      min-elements 3;
+      max-elements 11;
+    }
   }
 }