yaml: support unicode serialization/deserialization

Fix: #30454

salt/utils/yamlloader.py

@@ -45,6 +45,9 @@ class SaltYamlSafeLoader(yaml.SafeLoader, object):
             self.add_constructor(
                 u'tag:yaml.org,2002:omap',
                 type(self).construct_yaml_map)
+            self.add_constructor(
+                u'tag:yaml.org,2002:python/unicode',
+                type(self).construct_unicode)
         self.dictclass = dictclass
 
     def construct_yaml_map(self, node):
@@ -53,6 +56,9 @@ class SaltYamlSafeLoader(yaml.SafeLoader, object):
         value = self.construct_mapping(node)
         data.update(value)
 
+    def construct_unicode(self, node):
+        return node.value
+
     def construct_mapping(self, node, deep=False):
         '''
         Build the mapping for YAML

tests/unit/renderers/yaml_test.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+
+# Import Python Libs
+from __future__ import absolute_import
+
+# Import Salt Testing libs
+from salttesting import TestCase
+from salttesting.helpers import ensure_in_syspath
+
+ensure_in_syspath('../../')
+
+# Import Salt libs
+from salt.renderers import yaml
+
+yaml.__salt__ = {}
+yaml.__opts__ = {}
+
+
+class YAMLRendererTestCase(TestCase):
+    def test_yaml_render_string(self):
+        data = "string"
+        result = yaml.render(data)
+
+        self.assertEqual(result, data)
+
+    def test_yaml_render_unicode(self):
+        data = "!!python/unicode python unicode string"
+        result = yaml.render(data)
+
+        self.assertEqual(result, u"python unicode string")

tests/unit/templates/jinja_test.py

@@ -490,6 +490,12 @@ class TestCustomExtensions(TestCase):
         rendered = env.from_string('{{ dataset|yaml }}').render(dataset=dataset)
         self.assertEqual(dataset, rendered)
 
+    def test_serialize_yaml_unicode(self):
+        dataset = u"str value"
+        env = Environment(extensions=[SerializerExtension])
+        rendered = env.from_string('{{ dataset|yaml }}').render(dataset=dataset)
+        self.assertEqual("!!python/unicode str value", rendered)
+
     def test_serialize_python(self):
         dataset = {
             "foo": True,