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/**
* @file test_openconfig.c
* @author Michal Vasko <mvasko@cesnet.cz>
* @brief unit tests for openconfig extensions support
*
* Copyright (c) 2026 CESNET, z.s.p.o.
*
* This source code is licensed under BSD 3-Clause License (the "License").
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*/
#define _UTEST_MAIN_
#include "utests.h"
#include "libyang.h"
static void
test_schema(void **state)
{
struct lys_module *mod;
struct lysc_ext_instance *e;
struct lysc_node *node;
char *printed = NULL;
const char *data, *yang, *info;
/* load openconfig-extensions */
assert_int_equal(LY_SUCCESS, ly_ctx_set_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
assert_non_null(ly_ctx_load_module(UTEST_LYCTX, "openconfig-extensions", NULL, NULL));
assert_int_equal(LY_SUCCESS, ly_ctx_unset_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
/* valid data */
data = "module oc-ext-pattern {namespace urn:oc-ext-pattern; prefix ocp;"
"import openconfig-extensions {prefix oc-ext;}"
"oc-ext:regexp-posix;"
"container c {"
" leaf a {type string {pattern 'a';}}"
" leaf b {type string {oc-ext:posix-pattern '^a';}}"
"}"
"}";
UTEST_ADD_MODULE(data, LYS_IN_YANG, NULL, &mod);
assert_non_null(e = mod->compiled->exts);
assert_int_equal(LY_ARRAY_COUNT(mod->compiled->exts), 1);
assert_non_null(node = lysc_node_child(mod->compiled->data)->next);
assert_int_equal(LY_ARRAY_COUNT(((struct lysc_node_leaf *)node)->type->exts), 1);
/* yang print */
yang = "module oc-ext-pattern {\n"
" namespace \"urn:oc-ext-pattern\";\n"
" prefix ocp;\n"
"\n"
" import openconfig-extensions {\n"
" prefix oc-ext;\n"
" }\n"
"\n"
" oc-ext:regexp-posix;\n"
"\n"
" container c {\n"
" leaf a {\n"
" type string {\n"
" pattern 'a';\n"
" }\n"
" }\n"
" leaf b {\n"
" type string {\n"
" oc-ext:posix-pattern '^a';\n"
" }\n"
" }\n"
" }\n"
"}\n";
assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG, 0));
assert_string_equal(printed, yang);
free(printed);
/* yang compiled print BUG compiled pattern and extension pattern printed with " */
info = "module oc-ext-pattern {\n"
" namespace \"urn:oc-ext-pattern\";\n"
" prefix ocp;\n"
"\n"
" openconfig-extensions:regexp-posix;\n"
"\n"
" container c {\n"
" config true;\n"
" status current;\n"
" leaf a {\n"
" type string {\n"
" pattern \"a\";\n"
" }\n"
" config true;\n"
" status current;\n"
" }\n"
" leaf b {\n"
" type string {\n"
" openconfig-extensions:posix-pattern \"^a\";\n"
" }\n"
" config true;\n"
" status current;\n"
" }\n"
" }\n"
"}\n";
assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG_COMPILED, 0));
assert_string_equal(printed, info);
free(printed);
}
static void
test_schema_invalid(void **state)
{
const char *yang;
/* load openconfig-extensions */
assert_int_equal(LY_SUCCESS, ly_ctx_set_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
assert_non_null(ly_ctx_load_module(UTEST_LYCTX, "openconfig-extensions", NULL, NULL));
assert_int_equal(LY_SUCCESS, ly_ctx_unset_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
yang = "module a {yang-version 1.1; namespace urn:tests:extensions:structure:a; prefix a;"
"import openconfig-extensions {prefix oc-ext;}"
"container c {oc-ext:regexp-posix;}}";
UTEST_INVALID_MODULE(yang, LYS_IN_YANG, NULL, LY_EINVAL);
CHECK_LOG_CTX("Ext plugin \"ly2 OpenConfig\": Extension \"oc-ext:regexp-posix\" is allowed only in 'module' or "
"'submodule' statements, but it is placed in \"container\" statement.",
"/a:c/{extension='oc-ext:regexp-posix'}", 0);
}
static void
test_parse(void **state)
{
struct lyd_node *tree = NULL;
const char *yang, *xml;
/* load openconfig-extensions */
assert_int_equal(LY_SUCCESS, ly_ctx_set_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
assert_non_null(ly_ctx_load_module(UTEST_LYCTX, "openconfig-extensions", NULL, NULL));
assert_int_equal(LY_SUCCESS, ly_ctx_unset_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
yang = "module oc-ext-pattern {namespace urn:oc-ext-pattern; prefix ocp;"
"import openconfig-extensions {prefix oc-ext;}"
"oc-ext:regexp-posix;"
"container c {"
" leaf a {type string {pattern 'a';}}"
" leaf b {type string {oc-ext:posix-pattern '^a';}}"
"}"
"}";
UTEST_ADD_MODULE(yang, LYS_IN_YANG, NULL, NULL);
/* parse data */
xml = "<c xmlns=\"urn:oc-ext-pattern\">"
"<a>bab</a>"
"<b>ab</b>"
"</c>";
CHECK_PARSE_LYD_PARAM(xml, LYD_XML, 0, LYD_VALIDATE_PRESENT, LY_SUCCESS, tree);
CHECK_LYD_STRING_PARAM(tree, xml, LYD_XML, LYD_PRINT_SHRINK | LYD_PRINT_SIBLINGS);
lyd_free_all(tree);
/* invalid data */
xml = "<c xmlns=\"urn:oc-ext-pattern\">"
"<a>bb</a>"
"</c>";
CHECK_PARSE_LYD_PARAM(xml, LYD_XML, 0, LYD_VALIDATE_PRESENT, LY_EVALID, tree);
CHECK_LOG_CTX("Unsatisfied pattern - \"bb\" does not match \"a\".",
"/oc-ext-pattern:c/a", 1);
xml = "<c xmlns=\"urn:oc-ext-pattern\">"
"<b>bba</b>"
"</c>";
CHECK_PARSE_LYD_PARAM(xml, LYD_XML, 0, LYD_VALIDATE_PRESENT, LY_EVALID, tree);
CHECK_LOG_CTX("Ext plugin \"ly2 OpenConfig\": Unsatisfied pattern - \"bba\" does not match \"^a\".",
"/oc-ext-pattern:c/b", 0);
}
int
main(void)
{
const struct CMUnitTest tests[] = {
UTEST(test_schema),
UTEST(test_schema_invalid),
UTEST(test_parse),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
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