tests/utests/test_xpath.c - github/CESNET/libyang - Gitiles

 /*
  * @file test_xpath.c
  * @author: Michal Vasko <mvasko@cesnet.cz>
  * @brief unit tests for XPath evaluation
  *
  * Copyright (c) 2020 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
  */

 #include <stdarg.h>
 #include <stddef.h>
 #include <setjmp.h>
 #include <cmocka.h>

 #include <stdio.h>
 #include <string.h>

 #include "context.h"
 #include "parser_data.h"
 #include "set.h"
 #include "tests/config.h"
 #include "tree_data.h"
 #include "tree_schema.h"

 #define BUFSIZE 1024
 char logbuf[BUFSIZE] = {0};
 int store = -1; /* negative for infinite logging, positive for limited logging */

 struct ly_ctx *ctx; /* context for tests */

 /* set to 0 to printing error messages to stderr instead of checking them in code */
 #define ENABLE_LOGGER_CHECKING 1

 #if ENABLE_LOGGER_CHECKING
 static void
 logger(LY_LOG_LEVEL level, const char *msg, const char *path)
 {
     (void) level; /* unused */
     if (store) {
         if (path && path[0]) {
             snprintf(logbuf, BUFSIZE - 1, "%s %s", msg, path);
         } else {
             strncpy(logbuf, msg, BUFSIZE - 1);
         }
         if (store > 0) {
             --store;
         }
     }
 }
 #endif

 static int
 setup(void **state)
 {
     (void) state; /* unused */

     const char *schema_a =
     "module a {"
         "namespace urn:tests:a;"
         "prefix a;"
         "yang-version 1.1;"

         "list l1 {"
             "key \"a b\";"
             "leaf a {"
                 "type string;"
             "}"
             "leaf b {"
                 "type string;"
             "}"
             "leaf c {"
                 "type string;"
             "}"
         "}"
         "leaf foo {"
             "type string;"
         "}"
         "leaf foo2 {"
             "type uint8;"
         "}"
         "container c {"
             "leaf x {"
                 "type string;"
             "}"
             "list ll {"
                 "key \"a\";"
                 "leaf a {"
                     "type string;"
                 "}"
                 "list ll {"
                     "key \"a\";"
                     "leaf a {"
                         "type string;"
                     "}"
                     "leaf b {"
                         "type string;"
                     "}"
                 "}"
             "}"
             "leaf-list ll2 {"
                 "type string;"
             "}"
         "}"
     "}";
     const char *schema_b =
     "module b {"
         "namespace urn:tests:b;"
         "prefix b;"
         "yang-version 1.1;"

         "list l2 {"
             "key \"a\";"
             "leaf a {"
                 "type uint16;"
             "}"
             "leaf b {"
                 "type uint16;"
             "}"
         "}"
     "}";

 #if ENABLE_LOGGER_CHECKING
     ly_set_log_clb(logger, 1);
 #endif

     assert_int_equal(LY_SUCCESS, ly_ctx_new(TESTS_DIR_MODULES_YANG, 0, &ctx));
     assert_int_equal(lys_parse_mem(ctx, schema_a, LYS_IN_YANG, NULL), LY_SUCCESS);
     assert_int_equal(lys_parse_mem(ctx, schema_b, LYS_IN_YANG, NULL), LY_SUCCESS);

     return 0;
 }

 static int
 teardown(void **state)
 {
 #if ENABLE_LOGGER_CHECKING
     if (*state) {
         fprintf(stderr, "%s\n", logbuf);
     }
 #else
     (void) state; /* unused */
 #endif

     ly_ctx_destroy(ctx, NULL);
     ctx = NULL;

     return 0;
 }

 void
 logbuf_clean(void)
 {
     logbuf[0] = '\0';
 }

 #if ENABLE_LOGGER_CHECKING
 #   define logbuf_assert(str) assert_string_equal(logbuf, str)
 #else
 #   define logbuf_assert(str)
 #endif

 static void
 test_hash(void **state)
 {
     *state = test_hash;

     const char *data =
     "<l1 xmlns=\"urn:tests:a\">"
         "<a>a1</a>"
         "<b>b1</b>"
         "<c>c1</c>"
     "</l1>"
     "<l1 xmlns=\"urn:tests:a\">"
         "<a>a2</a>"
         "<b>b2</b>"
     "</l1>"
     "<l1 xmlns=\"urn:tests:a\">"
         "<a>a3</a>"
         "<b>b3</b>"
         "<c>c3</c>"
     "</l1>"
     "<foo xmlns=\"urn:tests:a\">foo value</foo>"
     "<c xmlns=\"urn:tests:a\">"
         "<x>val</x>"
         "<ll>"
             "<a>val_a</a>"
             "<ll>"
                 "<a>val_a</a>"
                 "<b>val</b>"
             "</ll>"
             "<ll>"
                 "<a>val_b</a>"
             "</ll>"
         "</ll>"
         "<ll>"
             "<a>val_b</a>"
             "<ll>"
                 "<a>val_a</a>"
             "</ll>"
             "<ll>"
                 "<a>val_b</a>"
                 "<b>val</b>"
             "</ll>"
         "</ll>"
         "<ll>"
             "<a>val_c</a>"
             "<ll>"
                 "<a>val_a</a>"
             "</ll>"
             "<ll>"
                 "<a>val_b</a>"
             "</ll>"
         "</ll>"
         "<ll2>one</ll2>"
         "<ll2>two</ll2>"
         "<ll2>three</ll2>"
         "<ll2>four</ll2>"
     "</c>";
     struct lyd_node *tree, *node;
     struct ly_set *set;

     assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(ctx, data, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, &tree));
     assert_non_null(tree);

     /* top-level, so hash table is not ultimately used but instances can be compared based on hashes */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:l1[a='a3'][b='b3']", &set));
     assert_int_equal(1, set->count);

     node = set->objs[0];
     assert_string_equal(node->schema->name, "l1");
     node = lyd_child(node);
     assert_string_equal(node->schema->name, "a");
     assert_string_equal(LYD_CANON_VALUE(node), "a3");

     ly_set_free(set, NULL);

     /* hashes should be used for both searches (well, there are not enough nested ll instances, so technically not true) */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll[a='val_b']/ll[a='val_b']", &set));
     assert_int_equal(1, set->count);

     node = set->objs[0];
     assert_string_equal(node->schema->name, "ll");
     node = lyd_child(node);
     assert_string_equal(node->schema->name, "a");
     assert_string_equal(LYD_CANON_VALUE(node), "val_b");
     node = node->next;
     assert_string_equal(node->schema->name, "b");
     assert_null(node->next);

     ly_set_free(set, NULL);

     /* hashes are not used */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c//ll[a='val_b']", &set));
     assert_int_equal(4, set->count);

     ly_set_free(set, NULL);

     /* hashes used even for leaf-lists */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll2[. = 'three']", &set));
     assert_int_equal(1, set->count);

     node = set->objs[0];
     assert_string_equal(node->schema->name, "ll2");
     assert_string_equal(LYD_CANON_VALUE(node), "three");

     ly_set_free(set, NULL);

     /* not found using hashes */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll[a='val_d']", &set));
     assert_int_equal(0, set->count);

     ly_set_free(set, NULL);

     /* white-spaces are also ok */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll[ \na = 'val_c' ]", &set));
     assert_int_equal(1, set->count);

     ly_set_free(set, NULL);

     lyd_free_all(tree);
     *state = NULL;
 }

 static void
 test_toplevel(void **state)
 {
     *state = test_toplevel;

     const char *data =
     "<l1 xmlns=\"urn:tests:a\">"
         "<a>a1</a>"
         "<b>b1</b>"
         "<c>c1</c>"
     "</l1>"
     "<l1 xmlns=\"urn:tests:a\">"
         "<a>a2</a>"
         "<b>b2</b>"
     "</l1>"
     "<l1 xmlns=\"urn:tests:a\">"
         "<a>a3</a>"
         "<b>b3</b>"
         "<c>c3</c>"
     "</l1>"
     "<foo xmlns=\"urn:tests:a\">foo value</foo>"
     "<l2 xmlns=\"urn:tests:b\">"
         "<a>1</a>"
         "<b>1</b>"
     "</l2>"
     "<l2 xmlns=\"urn:tests:b\">"
         "<a>2</a>"
         "<b>1</b>"
     "</l2>"
     "<l2 xmlns=\"urn:tests:b\">"
         "<a>3</a>"
         "<b>1</b>"
     "</l2>";
     struct lyd_node *tree;
     struct ly_set *set;

     assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(ctx, data, LYD_XML, LYD_PARSE_STRICT , LYD_VALIDATE_PRESENT, &tree));
     assert_non_null(tree);

     /* all top-level nodes from one module (default container as well) */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:*", &set));
     assert_int_equal(5, set->count);

     ly_set_free(set, NULL);

     /* all top-level nodes from all modules */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/*", &set));
     assert_int_equal(8, set->count);

     ly_set_free(set, NULL);

     /* all nodes from one module */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "//a:*", &set));
     assert_int_equal(13, set->count);

     ly_set_free(set, NULL);

     /* all nodes from all modules */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "//*", &set));
     assert_int_equal(22, set->count);

     ly_set_free(set, NULL);

     /* all nodes from all modules #2 */
     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "//.", &set));
     assert_int_equal(22, set->count);

     ly_set_free(set, NULL);

     lyd_free_all(tree);
     *state = NULL;
 }

 static void
 test_atomize(void **state)
 {
     *state = test_atomize;

     struct ly_set *set;
     const struct lys_module *mod;

     mod = ly_ctx_get_module_latest(ctx, "a");

     /* some random paths just making sure the API function works */
     assert_int_equal(LY_SUCCESS, lys_atomize_xpath(mod->compiled->data, "/a:*", 0, &set));
     assert_int_equal(4, set->count);

     ly_set_free(set, NULL);

     /* all nodes from all modules (including internal, which can change easily, so check just the test modules) */
     assert_int_equal(LY_SUCCESS, lys_atomize_xpath(mod->compiled->data, "//.", 0, &set));
     assert_in_range(set->count, 16, UINT32_MAX);

     ly_set_free(set, NULL);

     assert_int_equal(LY_SUCCESS, lys_atomize_xpath(mod->compiled->data->next->next, "/a:c/ll[a='val1']/ll[a='val2']/b",
                                                    0, &set));
     assert_int_equal(7, set->count);

     ly_set_free(set, NULL);
 }

 static void
 test_canonize(void **state)
 {
     *state = test_canonize;

     const char *data =
     "<foo2 xmlns=\"urn:tests:a\">50</foo2>";
     struct lyd_node *tree;
     struct ly_set *set;

     assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(ctx, data, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, &tree));
     assert_non_null(tree);

     assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:foo2[.='050']", &set));
     assert_int_equal(1, set->count);
     ly_set_free(set, NULL);

     /* TODO more use-cases once there are some type plugins that have canonical values */

     lyd_free_all(tree);
     *state = NULL;
 }

 int main(void)
 {
     const struct CMUnitTest tests[] = {
         cmocka_unit_test_setup_teardown(test_hash, setup, teardown),
         cmocka_unit_test_setup_teardown(test_toplevel, setup, teardown),
         cmocka_unit_test_setup_teardown(test_atomize, setup, teardown),
         cmocka_unit_test_setup_teardown(test_canonize, setup, teardown),
     };

     return cmocka_run_group_tests(tests, NULL, NULL);
 }
	/*
	* @file test_xpath.c
	* @author: Michal Vasko <mvasko@cesnet.cz>
	* @brief unit tests for XPath evaluation
	*
	* Copyright (c) 2020 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
	*/

	#include <stdarg.h>
	#include <stddef.h>
	#include <setjmp.h>
	#include <cmocka.h>

	#include <stdio.h>
	#include <string.h>

	#include "context.h"
	#include "parser_data.h"
	#include "set.h"
	#include "tests/config.h"
	#include "tree_data.h"
	#include "tree_schema.h"

	#define BUFSIZE 1024
	char logbuf[BUFSIZE] = {0};
	int store = -1; /* negative for infinite logging, positive for limited logging */

	struct ly_ctx ctx; / context for tests */

	/* set to 0 to printing error messages to stderr instead of checking them in code */
	#define ENABLE_LOGGER_CHECKING 1

	#if ENABLE_LOGGER_CHECKING
	static void
	logger(LY_LOG_LEVEL level, const char msg, const char path)
	{
	(void) level; /* unused */
	if (store) {
	if (path && path[0]) {
	snprintf(logbuf, BUFSIZE - 1, "%s %s", msg, path);
	} else {
	strncpy(logbuf, msg, BUFSIZE - 1);
	}
	if (store > 0) {
	--store;
	}
	}
	}
	#endif

	static int
	setup(void **state)
	{
	(void) state; /* unused */

	const char *schema_a =
	"module a {"
	"namespace urn:tests:a;"
	"prefix a;"
	"yang-version 1.1;"

	"list l1 {"
	"key \"a b\";"
	"leaf a {"
	"type string;"
	"}"
	"leaf b {"
	"type string;"
	"}"
	"leaf c {"
	"type string;"
	"}"
	"}"
	"leaf foo {"
	"type string;"
	"}"
	"leaf foo2 {"
	"type uint8;"
	"}"
	"container c {"
	"leaf x {"
	"type string;"
	"}"
	"list ll {"
	"key \"a\";"
	"leaf a {"
	"type string;"
	"}"
	"list ll {"
	"key \"a\";"
	"leaf a {"
	"type string;"
	"}"
	"leaf b {"
	"type string;"
	"}"
	"}"
	"}"
	"leaf-list ll2 {"
	"type string;"
	"}"
	"}"
	"}";
	const char *schema_b =
	"module b {"
	"namespace urn:tests:b;"
	"prefix b;"
	"yang-version 1.1;"

	"list l2 {"
	"key \"a\";"
	"leaf a {"
	"type uint16;"
	"}"
	"leaf b {"
	"type uint16;"
	"}"
	"}"
	"}";

	#if ENABLE_LOGGER_CHECKING
	ly_set_log_clb(logger, 1);
	#endif

	assert_int_equal(LY_SUCCESS, ly_ctx_new(TESTS_DIR_MODULES_YANG, 0, &ctx));
	assert_int_equal(lys_parse_mem(ctx, schema_a, LYS_IN_YANG, NULL), LY_SUCCESS);
	assert_int_equal(lys_parse_mem(ctx, schema_b, LYS_IN_YANG, NULL), LY_SUCCESS);

	return 0;
	}

	static int
	teardown(void **state)
	{
	#if ENABLE_LOGGER_CHECKING
	if (*state) {
	fprintf(stderr, "%s\n", logbuf);
	}
	#else
	(void) state; /* unused */
	#endif

	ly_ctx_destroy(ctx, NULL);
	ctx = NULL;

	return 0;
	}

	void
	logbuf_clean(void)
	{
	logbuf[0] = '\0';
	}

	#if ENABLE_LOGGER_CHECKING
	# define logbuf_assert(str) assert_string_equal(logbuf, str)
	#else
	# define logbuf_assert(str)
	#endif

	static void
	test_hash(void **state)
	{
	*state = test_hash;

	const char *data =
	"<l1 xmlns=\"urn:tests:a\">"
	"<a>a1</a>"
	"<b>b1</b>"
	"<c>c1</c>"
	"</l1>"
	"<l1 xmlns=\"urn:tests:a\">"
	"<a>a2</a>"
	"<b>b2</b>"
	"</l1>"
	"<l1 xmlns=\"urn:tests:a\">"
	"<a>a3</a>"
	"<b>b3</b>"
	"<c>c3</c>"
	"</l1>"
	"<foo xmlns=\"urn:tests:a\">foo value</foo>"
	"<c xmlns=\"urn:tests:a\">"
	"<x>val</x>"
	"<ll>"
	"<a>val_a</a>"
	"<ll>"
	"<a>val_a</a>"
	"<b>val</b>"
	"</ll>"
	"<ll>"
	"<a>val_b</a>"
	"</ll>"
	"</ll>"
	"<ll>"
	"<a>val_b</a>"
	"<ll>"
	"<a>val_a</a>"
	"</ll>"
	"<ll>"
	"<a>val_b</a>"
	"<b>val</b>"
	"</ll>"
	"</ll>"
	"<ll>"
	"<a>val_c</a>"
	"<ll>"
	"<a>val_a</a>"
	"</ll>"
	"<ll>"
	"<a>val_b</a>"
	"</ll>"
	"</ll>"
	"<ll2>one</ll2>"
	"<ll2>two</ll2>"
	"<ll2>three</ll2>"
	"<ll2>four</ll2>"
	"</c>";
	struct lyd_node tree, node;
	struct ly_set *set;

	assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(ctx, data, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, &tree));
	assert_non_null(tree);

	/* top-level, so hash table is not ultimately used but instances can be compared based on hashes */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:l1[a='a3'][b='b3']", &set));
	assert_int_equal(1, set->count);

	node = set->objs[0];
	assert_string_equal(node->schema->name, "l1");
	node = lyd_child(node);
	assert_string_equal(node->schema->name, "a");
	assert_string_equal(LYD_CANON_VALUE(node), "a3");

	ly_set_free(set, NULL);

	/* hashes should be used for both searches (well, there are not enough nested ll instances, so technically not true) */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll[a='val_b']/ll[a='val_b']", &set));
	assert_int_equal(1, set->count);

	node = set->objs[0];
	assert_string_equal(node->schema->name, "ll");
	node = lyd_child(node);
	assert_string_equal(node->schema->name, "a");
	assert_string_equal(LYD_CANON_VALUE(node), "val_b");
	node = node->next;
	assert_string_equal(node->schema->name, "b");
	assert_null(node->next);

	ly_set_free(set, NULL);

	/* hashes are not used */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c//ll[a='val_b']", &set));
	assert_int_equal(4, set->count);

	ly_set_free(set, NULL);

	/* hashes used even for leaf-lists */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll2[. = 'three']", &set));
	assert_int_equal(1, set->count);

	node = set->objs[0];
	assert_string_equal(node->schema->name, "ll2");
	assert_string_equal(LYD_CANON_VALUE(node), "three");

	ly_set_free(set, NULL);

	/* not found using hashes */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll[a='val_d']", &set));
	assert_int_equal(0, set->count);

	ly_set_free(set, NULL);

	/* white-spaces are also ok */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:c/ll[ \na = 'val_c' ]", &set));
	assert_int_equal(1, set->count);

	ly_set_free(set, NULL);

	lyd_free_all(tree);
	*state = NULL;
	}

	static void
	test_toplevel(void **state)
	{
	*state = test_toplevel;

	const char *data =
	"<l1 xmlns=\"urn:tests:a\">"
	"<a>a1</a>"
	"<b>b1</b>"
	"<c>c1</c>"
	"</l1>"
	"<l1 xmlns=\"urn:tests:a\">"
	"<a>a2</a>"
	"<b>b2</b>"
	"</l1>"
	"<l1 xmlns=\"urn:tests:a\">"
	"<a>a3</a>"
	"<b>b3</b>"
	"<c>c3</c>"
	"</l1>"
	"<foo xmlns=\"urn:tests:a\">foo value</foo>"
	"<l2 xmlns=\"urn:tests:b\">"
	"<a>1</a>"
	"<b>1</b>"
	"</l2>"
	"<l2 xmlns=\"urn:tests:b\">"
	"<a>2</a>"
	"<b>1</b>"
	"</l2>"
	"<l2 xmlns=\"urn:tests:b\">"
	"<a>3</a>"
	"<b>1</b>"
	"</l2>";
	struct lyd_node *tree;
	struct ly_set *set;

	assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(ctx, data, LYD_XML, LYD_PARSE_STRICT , LYD_VALIDATE_PRESENT, &tree));
	assert_non_null(tree);

	/* all top-level nodes from one module (default container as well) */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:*", &set));
	assert_int_equal(5, set->count);

	ly_set_free(set, NULL);

	/* all top-level nodes from all modules */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/*", &set));
	assert_int_equal(8, set->count);

	ly_set_free(set, NULL);

	/* all nodes from one module */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "//a:*", &set));
	assert_int_equal(13, set->count);

	ly_set_free(set, NULL);

	/* all nodes from all modules */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "//*", &set));
	assert_int_equal(22, set->count);

	ly_set_free(set, NULL);

	/* all nodes from all modules #2 */
	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "//.", &set));
	assert_int_equal(22, set->count);

	ly_set_free(set, NULL);

	lyd_free_all(tree);
	*state = NULL;
	}

	static void
	test_atomize(void **state)
	{
	*state = test_atomize;

	struct ly_set *set;
	const struct lys_module *mod;

	mod = ly_ctx_get_module_latest(ctx, "a");

	/* some random paths just making sure the API function works */
	assert_int_equal(LY_SUCCESS, lys_atomize_xpath(mod->compiled->data, "/a:*", 0, &set));
	assert_int_equal(4, set->count);

	ly_set_free(set, NULL);

	/* all nodes from all modules (including internal, which can change easily, so check just the test modules) */
	assert_int_equal(LY_SUCCESS, lys_atomize_xpath(mod->compiled->data, "//.", 0, &set));
	assert_in_range(set->count, 16, UINT32_MAX);

	ly_set_free(set, NULL);

	assert_int_equal(LY_SUCCESS, lys_atomize_xpath(mod->compiled->data->next->next, "/a:c/ll[a='val1']/ll[a='val2']/b",
	0, &set));
	assert_int_equal(7, set->count);

	ly_set_free(set, NULL);
	}

	static void
	test_canonize(void **state)
	{
	*state = test_canonize;

	const char *data =
	"<foo2 xmlns=\"urn:tests:a\">50</foo2>";
	struct lyd_node *tree;
	struct ly_set *set;

	assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(ctx, data, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, &tree));
	assert_non_null(tree);

	assert_int_equal(LY_SUCCESS, lyd_find_xpath(tree, "/a:foo2[.='050']", &set));
	assert_int_equal(1, set->count);
	ly_set_free(set, NULL);

	/* TODO more use-cases once there are some type plugins that have canonical values */

	lyd_free_all(tree);
	*state = NULL;
	}

	int main(void)
	{
	const struct CMUnitTest tests[] = {
	cmocka_unit_test_setup_teardown(test_hash, setup, teardown),
	cmocka_unit_test_setup_teardown(test_toplevel, setup, teardown),
	cmocka_unit_test_setup_teardown(test_atomize, setup, teardown),
	cmocka_unit_test_setup_teardown(test_canonize, setup, teardown),
	};

	return cmocka_run_group_tests(tests, NULL, NULL);
	}