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Adding uniques #88

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13 changes: 12 additions & 1 deletion libyang/schema.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
# SPDX-License-Identifier: MIT

from contextlib import suppress
from typing import IO, Any, Dict, Iterator, Optional, Tuple, Union
from typing import IO, Any, Dict, Iterator, List, Optional, Tuple, Union

from _libyang import ffi, lib
from .util import IOType, LibyangError, c2str, init_output, ly_array_iter, str2c
Expand Down Expand Up @@ -1416,6 +1416,17 @@ def must_conditions(self) -> Iterator[str]:
for must in ly_array_iter(pdata.musts):
yield c2str(must.arg.str)

def uniques(self) -> Iterator[List[SNode]]:
if self.cdata_list == ffi.NULL:
return
if self.cdata_list.uniques == ffi.NULL:
return
for unique in ly_array_iter(self.cdata_list.uniques):
nodes = []
for node in ly_array_iter(unique):
nodes.append(SNode.new(self.context, node))
yield nodes

def __str__(self):
return "%s [%s]" % (self.name(), ", ".join(k.name() for k in self.keys()))

Expand Down
11 changes: 11 additions & 0 deletions tests/test_schema.py
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Expand Up @@ -328,6 +328,17 @@ def test_list_parent(self):
self.assertIsInstance(parent, SContainer)
self.assertEqual(parent.name(), "conf")

def test_list_uniques(self):
self.ctx.load_module("yolo-nodetypes")
self.list = next(self.ctx.find_path("/yolo-nodetypes:conf/list1"))
self.assertIsInstance(self.list, SList)
uniques = list(self.list.uniques())
self.assertEqual(len(uniques), 1)
elements = [u.name() for u in uniques[0]]
self.assertEqual(len(elements), 2)
self.assertTrue("leaf2" in elements)
self.assertTrue("leaf3" in elements)


# -------------------------------------------------------------------------------------
class RpcTest(unittest.TestCase):
Expand Down
14 changes: 14 additions & 0 deletions tests/yang/yolo/yolo-nodetypes.yang
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Expand Up @@ -28,5 +28,19 @@ module yolo-nodetypes {
default 2.5;
default 2.6;
}

list list1 {
key leaf1;
unique "leaf2 leaf3";
leaf leaf1 {
type string;
}
leaf leaf2 {
type string;
}
leaf leaf3 {
type string;
}
}
}
}