Add test for enum member id format (#2273)

Author: Liudmila Molkova

policies_test/yaml_schema_test.rego

@@ -12,6 +12,18 @@ test_fails_on_attribute_name_without_namespace if {
     count(deny) >= 1 with input as {"groups": create_attribute_group("foo")}
 }
 
+test_fails_on_invalid_attribute_member_id if {
+    every name in invalid_names {
+        count(deny) >= 1 with input as {"groups": [{"id": "yaml_schema.test", "attributes": [{"id": "foo.bar", "stability": "rc", "type": {
+                        "members": [{
+                            "id": name,
+                            "value": "test",
+                            "stability": "stable",
+                        }]
+                    }}]}]}
+    }
+}
+
 test_fails_on_invalid_metric_name if {
     every name in invalid_names {
         count(deny) >= 1 with input as {"groups": create_metric(name)}
@@ -75,6 +87,18 @@ test_passes_on_valid_names if {
     }
 }
 
+test_passes_on_valid_attribute_member_id if {
+    every name in valid_names {
+        count(deny) == 0 with input as {"groups": [{"id": "yaml_schema.test", "attributes": [{"id": "foo.bar", "stability": "rc", "type": {
+                        "members": [{
+                            "id": name,
+                            "value": "test",
+                            "stability": "stable",
+                        }]
+                    }}]}]}
+    }
+}
+
 test_fails_if_prefix_is_present if {
     count(deny) == 1 with input as {"groups": [{"id": "test", "prefix": "foo"}]}
 }
@@ -132,6 +156,8 @@ invalid_names := [
     "foo_.bar",
     "foo.bar,baz",
     "fü.bär",
+    "Foo.bar",
+    "foo.bAR",
 ]
 
 valid_names := [