tests/utests/extensions/test_yangdata.c - github/CESNET/libyang - Gitiles

 /*
  * @file test_yangdata.c
  * @author: Radek Krejci <rkrejci@cesnet.cz>
  * @brief unit tests for yang-data extensions support
  *
  * Copyright (c) 2019-2021 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 int
 setup(void **state)
 {
     UTEST_SETUP;

     assert_int_equal(LY_SUCCESS, ly_ctx_set_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
     assert_non_null(ly_ctx_load_module(UTEST_LYCTX, "ietf-restconf", "2017-01-26", NULL));

     return 0;
 }

 static void
 test_schema(void **state)
 {
     const struct lys_module *mod;
     struct lysc_ext_instance *e;
     char *printed = NULL;
     const char *data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "feature x;"
             "rc:yang-data template { container x { list l { leaf x { type string;}} leaf y {if-feature x; type string; config false;}}}}";
     const char *info = "module a {\n"
             "  namespace \"urn:tests:extensions:yangdata:a\";\n"
             "  prefix self;\n\n"
             "  ietf-restconf:yang-data \"template\" {\n"
             "    container x {\n"
             "      status current;\n"
             "      list l {\n" /* no key */
             "        min-elements 0;\n"
             "        max-elements 4294967295;\n"
             "        ordered-by user;\n"
             "        status current;\n"
             "        leaf x {\n"
             "          type string;\n"
             "          status current;\n"
             "        }\n"
             "      }\n"
             "      leaf y {\n" /* config and if-feature are ignored */
             "        type string;\n"
             "        status current;\n"
             "      }\n"
             "    }\n"
             "  }\n"
             "}\n";

     /* valid data */
     assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
     assert_non_null(e = mod->compiled->exts);
     assert_int_equal(LY_ARRAY_COUNT(mod->compiled->exts), 1);
     assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG_COMPILED, 0));
     assert_string_equal(printed, info);
     free(printed);

     data = "module c {yang-version 1.1; namespace urn:tests:extensions:yangdata:c; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "grouping g { choice ch { container a {presence a; config false;} container b {presence b; config true;}}}"
             "rc:yang-data template { uses g;}}";
     info = "module c {\n"
             "  namespace \"urn:tests:extensions:yangdata:c\";\n"
             "  prefix self;\n\n"
             "  ietf-restconf:yang-data \"template\" {\n"
             "    choice ch {\n"
             "      status current;\n"
             "      case a {\n"
             "        status current;\n"
             "        container a {\n"
             "          presence \"true\";\n"
             "          status current;\n"
             "        }\n"
             "      }\n"
             "      case b {\n"
             "        status current;\n"
             "        container b {\n"
             "          presence \"true\";\n"
             "          status current;\n"
             "        }\n"
             "      }\n"
             "    }\n"
             "  }\n"
             "}\n";
     assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
     assert_non_null(e = mod->compiled->exts);
     assert_int_equal(LY_ARRAY_COUNT(mod->compiled->exts), 1);
     assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG_COMPILED, 0));
     assert_string_equal(printed, info);
     free(printed);

     /* ignored - valid with warning */
     data = "module b {yang-version 1.1; namespace urn:tests:extensions:yangdata:b; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "container b { rc:yang-data template { container x { leaf x {type string;}}}}}";
     info = "module b {\n"
             "  namespace \"urn:tests:extensions:yangdata:b\";\n"
             "  prefix self;\n"
             "  container b {\n"
             "    config true;\n"
             "    status current;\n"
             "  }\n"
             "}\n";
     assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
     assert_null(mod->compiled->exts);
     CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
             "Extension rc:yang-data is ignored since it appears as a non top-level statement in \"container\" statement.",
             "/b:b/{extension='rc:yang-data'}/template");
     assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG_COMPILED, 0));
     assert_string_equal(printed, info);
     free(printed);

     /* sama data nodes name, but not conflicting */
     data = "module d {yang-version 1.1; namespace urn:tests:extensions:yangdata:d; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "leaf d { type string;}"
             "rc:yang-data template1 { container d {presence d;}}"
             "rc:yang-data template2 { container d {presence d;}}}";
     info = "module d {\n"
             "  namespace \"urn:tests:extensions:yangdata:d\";\n"
             "  prefix self;\n\n"
             "  ietf-restconf:yang-data \"template1\" {\n"
             "    container d {\n"
             "      presence \"true\";\n"
             "      status current;\n"
             "    }\n"
             "  }\n"
             "  ietf-restconf:yang-data \"template2\" {\n"
             "    container d {\n"
             "      presence \"true\";\n"
             "      status current;\n"
             "    }\n"
             "  }\n"
             "  leaf d {\n"
             "    type string;\n"
             "    config true;\n"
             "    status current;\n"
             "  }\n"
             "}\n";
     assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
     assert_non_null(e = mod->compiled->exts);
     assert_int_equal(LY_ARRAY_COUNT(mod->compiled->exts), 2);
     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 *data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data template { leaf x {type string;}}}";

     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Invalid keyword \"leaf\" as a child of \"rc:yang-data template\" extension instance.",
             "/a:{extension='rc:yang-data'}/template");

     data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data template { choice x { leaf x {type string;}}}}";
     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
             "Extension rc:yang-data is instantiated with leaf top level data node (inside a choice), "
             "but only a single container data node is allowed.",
             "/a:{extension='rc:yang-data'}/template");

     data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data template { choice x { case x { container z {presence ppp;} leaf x {type string;}}}}}";
     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
             "Extension rc:yang-data is instantiated with multiple top level data nodes (inside a single choice's case), "
             "but only a single container data node is allowed.",
             "/a:{extension='rc:yang-data'}/template");

     data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data template { container x { leaf x {type string;}} container y { leaf y {type string;}}}}";
     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
             "Extension rc:yang-data is instantiated with multiple top level data nodes, "
             "but only a single container data node is allowed.",
             "/a:{extension='rc:yang-data'}/template");

     data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data template;}";
     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
             "Extension rc:yang-data is instantiated without any top level data node, "
             "but exactly one container data node is expected.",
             "/a:{extension='rc:yang-data'}/template");

     data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data { container x { leaf x {type string;}}}}";
     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Extension instance \"rc:yang-data\" misses argument element \"name\".",
             "/a:{extension='rc:yang-data'}");

     data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data template { container x { leaf x {type string;}}}"
             "rc:yang-data template { container y { leaf y {type string;}}}}";
     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
             "Extension rc:yang-data is instantiated multiple times.",
             "/a:{extension='rc:yang-data'}/template");

     data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "grouping t { leaf-list x {type string;}}"
             "rc:yang-data template { uses t;}}";
     assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
     CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
             "Extension rc:yang-data is instantiated with leaf-list top level data node, "
             "but only a single container data node is allowed.",
             "/a:{extension='rc:yang-data'}/template");
 }

 static void
 test_data(void **state)
 {
     const struct lys_module *mod;
     struct lysc_ext_instance *e;
     struct lyd_node *tree = NULL;
     const char *schema = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
             "import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
             "rc:yang-data template { container x { leaf x { type string;}}}}";
     const char *xml = "<x xmlns=\"urn:tests:extensions:yangdata:a\"><x>test</x></x>";
     const char *json = "{\"a:x\":{\"x\":\"test\"}}";

     assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, &mod));
     assert_non_null(e = mod->compiled->exts);

     assert_int_equal(LY_SUCCESS, ly_in_new_memory(xml, &UTEST_IN));
     assert_int_equal(LY_SUCCESS, lyd_parse_ext_data(e, NULL, UTEST_IN, LYD_XML, 0, LYD_VALIDATE_PRESENT, &tree));
     CHECK_LYD_STRING_PARAM(tree, xml, LYD_XML, LYD_PRINT_SHRINK | LYD_PRINT_WITHSIBLINGS);
     lyd_free_all(tree);

     ly_in_memory(UTEST_IN, json);
     assert_int_equal(LY_SUCCESS, lyd_parse_ext_data(e, NULL, UTEST_IN, LYD_JSON, 0, LYD_VALIDATE_PRESENT, &tree));
     CHECK_LYD_STRING_PARAM(tree, json, LYD_JSON, LYD_PRINT_SHRINK | LYD_PRINT_WITHSIBLINGS);

     lyd_free_all(tree);
 }

 int
 main(void)
 {
     const struct CMUnitTest tests[] = {
         UTEST(test_schema, setup),
         UTEST(test_schema_invalid, setup),
         UTEST(test_data, setup),
     };

     return cmocka_run_group_tests(tests, NULL, NULL);
 }
	/*
	* @file test_yangdata.c
	* @author: Radek Krejci <rkrejci@cesnet.cz>
	* @brief unit tests for yang-data extensions support
	*
	* Copyright (c) 2019-2021 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 int
	setup(void **state)
	{
	UTEST_SETUP;

	assert_int_equal(LY_SUCCESS, ly_ctx_set_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
	assert_non_null(ly_ctx_load_module(UTEST_LYCTX, "ietf-restconf", "2017-01-26", NULL));

	return 0;
	}

	static void
	test_schema(void **state)
	{
	const struct lys_module *mod;
	struct lysc_ext_instance *e;
	char *printed = NULL;
	const char *data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"feature x;"
	"rc:yang-data template { container x { list l { leaf x { type string;}} leaf y {if-feature x; type string; config false;}}}}";
	const char *info = "module a {\n"
	" namespace \"urn:tests:extensions:yangdata:a\";\n"
	" prefix self;\n\n"
	" ietf-restconf:yang-data \"template\" {\n"
	" container x {\n"
	" status current;\n"
	" list l {\n" /* no key */
	" min-elements 0;\n"
	" max-elements 4294967295;\n"
	" ordered-by user;\n"
	" status current;\n"
	" leaf x {\n"
	" type string;\n"
	" status current;\n"
	" }\n"
	" }\n"
	" leaf y {\n" /* config and if-feature are ignored */
	" type string;\n"
	" status current;\n"
	" }\n"
	" }\n"
	" }\n"
	"}\n";

	/* valid data */
	assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
	assert_non_null(e = mod->compiled->exts);
	assert_int_equal(LY_ARRAY_COUNT(mod->compiled->exts), 1);
	assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG_COMPILED, 0));
	assert_string_equal(printed, info);
	free(printed);

	data = "module c {yang-version 1.1; namespace urn:tests:extensions:yangdata:c; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"grouping g { choice ch { container a {presence a; config false;} container b {presence b; config true;}}}"
	"rc:yang-data template { uses g;}}";
	info = "module c {\n"
	" namespace \"urn:tests:extensions:yangdata:c\";\n"
	" prefix self;\n\n"
	" ietf-restconf:yang-data \"template\" {\n"
	" choice ch {\n"
	" status current;\n"
	" case a {\n"
	" status current;\n"
	" container a {\n"
	" presence \"true\";\n"
	" status current;\n"
	" }\n"
	" }\n"
	" case b {\n"
	" status current;\n"
	" container b {\n"
	" presence \"true\";\n"
	" status current;\n"
	" }\n"
	" }\n"
	" }\n"
	" }\n"
	"}\n";
	assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
	assert_non_null(e = mod->compiled->exts);
	assert_int_equal(LY_ARRAY_COUNT(mod->compiled->exts), 1);
	assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG_COMPILED, 0));
	assert_string_equal(printed, info);
	free(printed);

	/* ignored - valid with warning */
	data = "module b {yang-version 1.1; namespace urn:tests:extensions:yangdata:b; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"container b { rc:yang-data template { container x { leaf x {type string;}}}}}";
	info = "module b {\n"
	" namespace \"urn:tests:extensions:yangdata:b\";\n"
	" prefix self;\n"
	" container b {\n"
	" config true;\n"
	" status current;\n"
	" }\n"
	"}\n";
	assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
	assert_null(mod->compiled->exts);
	CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
	"Extension rc:yang-data is ignored since it appears as a non top-level statement in \"container\" statement.",
	"/b:b/{extension='rc:yang-data'}/template");
	assert_int_equal(LY_SUCCESS, lys_print_mem(&printed, mod, LYS_OUT_YANG_COMPILED, 0));
	assert_string_equal(printed, info);
	free(printed);

	/* sama data nodes name, but not conflicting */
	data = "module d {yang-version 1.1; namespace urn:tests:extensions:yangdata:d; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"leaf d { type string;}"
	"rc:yang-data template1 { container d {presence d;}}"
	"rc:yang-data template2 { container d {presence d;}}}";
	info = "module d {\n"
	" namespace \"urn:tests:extensions:yangdata:d\";\n"
	" prefix self;\n\n"
	" ietf-restconf:yang-data \"template1\" {\n"
	" container d {\n"
	" presence \"true\";\n"
	" status current;\n"
	" }\n"
	" }\n"
	" ietf-restconf:yang-data \"template2\" {\n"
	" container d {\n"
	" presence \"true\";\n"
	" status current;\n"
	" }\n"
	" }\n"
	" leaf d {\n"
	" type string;\n"
	" config true;\n"
	" status current;\n"
	" }\n"
	"}\n";
	assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, &mod));
	assert_non_null(e = mod->compiled->exts);
	assert_int_equal(LY_ARRAY_COUNT(mod->compiled->exts), 2);
	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 *data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data template { leaf x {type string;}}}";

	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Invalid keyword \"leaf\" as a child of \"rc:yang-data template\" extension instance.",
	"/a:{extension='rc:yang-data'}/template");

	data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data template { choice x { leaf x {type string;}}}}";
	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
	"Extension rc:yang-data is instantiated with leaf top level data node (inside a choice), "
	"but only a single container data node is allowed.",
	"/a:{extension='rc:yang-data'}/template");

	data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data template { choice x { case x { container z {presence ppp;} leaf x {type string;}}}}}";
	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
	"Extension rc:yang-data is instantiated with multiple top level data nodes (inside a single choice's case), "
	"but only a single container data node is allowed.",
	"/a:{extension='rc:yang-data'}/template");

	data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data template { container x { leaf x {type string;}} container y { leaf y {type string;}}}}";
	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
	"Extension rc:yang-data is instantiated with multiple top level data nodes, "
	"but only a single container data node is allowed.",
	"/a:{extension='rc:yang-data'}/template");

	data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data template;}";
	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
	"Extension rc:yang-data is instantiated without any top level data node, "
	"but exactly one container data node is expected.",
	"/a:{extension='rc:yang-data'}/template");

	data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data { container x { leaf x {type string;}}}}";
	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Extension instance \"rc:yang-data\" misses argument element \"name\".",
	"/a:{extension='rc:yang-data'}");

	data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data template { container x { leaf x {type string;}}}"
	"rc:yang-data template { container y { leaf y {type string;}}}}";
	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
	"Extension rc:yang-data is instantiated multiple times.",
	"/a:{extension='rc:yang-data'}/template");

	data = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"grouping t { leaf-list x {type string;}}"
	"rc:yang-data template { uses t;}}";
	assert_int_equal(LY_EVALID, lys_parse_mem(UTEST_LYCTX, data, LYS_IN_YANG, NULL));
	CHECK_LOG_CTX("Extension plugin \"libyang 2 - yang-data, version 1\": "
	"Extension rc:yang-data is instantiated with leaf-list top level data node, "
	"but only a single container data node is allowed.",
	"/a:{extension='rc:yang-data'}/template");
	}

	static void
	test_data(void **state)
	{
	const struct lys_module *mod;
	struct lysc_ext_instance *e;
	struct lyd_node *tree = NULL;
	const char *schema = "module a {yang-version 1.1; namespace urn:tests:extensions:yangdata:a; prefix self;"
	"import ietf-restconf {revision-date 2017-01-26; prefix rc;}"
	"rc:yang-data template { container x { leaf x { type string;}}}}";
	const char *xml = "<x xmlns=\"urn:tests:extensions:yangdata:a\"><x>test</x></x>";
	const char *json = "{\"a:x\":{\"x\":\"test\"}}";

	assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, &mod));
	assert_non_null(e = mod->compiled->exts);

	assert_int_equal(LY_SUCCESS, ly_in_new_memory(xml, &UTEST_IN));
	assert_int_equal(LY_SUCCESS, lyd_parse_ext_data(e, NULL, UTEST_IN, LYD_XML, 0, LYD_VALIDATE_PRESENT, &tree));
	CHECK_LYD_STRING_PARAM(tree, xml, LYD_XML, LYD_PRINT_SHRINK \| LYD_PRINT_WITHSIBLINGS);
	lyd_free_all(tree);

	ly_in_memory(UTEST_IN, json);
	assert_int_equal(LY_SUCCESS, lyd_parse_ext_data(e, NULL, UTEST_IN, LYD_JSON, 0, LYD_VALIDATE_PRESENT, &tree));
	CHECK_LYD_STRING_PARAM(tree, json, LYD_JSON, LYD_PRINT_SHRINK \| LYD_PRINT_WITHSIBLINGS);

	lyd_free_all(tree);
	}

	int
	main(void)
	{
	const struct CMUnitTest tests[] = {
	UTEST(test_schema, setup),
	UTEST(test_schema_invalid, setup),
	UTEST(test_data, setup),
	};

	return cmocka_run_group_tests(tests, NULL, NULL);
	}