utests data REFACTOR put repetitive commands into macros
diff --git a/tests/utests/basic/test_xpath.c b/tests/utests/basic/test_xpath.c
new file mode 100644
index 0000000..712b854
--- /dev/null
+++ b/tests/utests/basic/test_xpath.c
@@ -0,0 +1,351 @@
+/*
+ * @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
+ */
+#define _UTEST_MAIN_
+#include "utests.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"
+
+const char *schema_a =
+        "module a {\n"
+        "    namespace urn:tests:a;\n"
+        "    prefix a;\n"
+        "    yang-version 1.1;\n"
+        "\n"
+        "    list l1 {\n"
+        "        key \"a b\";\n"
+        "        leaf a {\n"
+        "            type string;\n"
+        "        }\n"
+        "        leaf b {\n"
+        "            type string;\n"
+        "        }\n"
+        "        leaf c {\n"
+        "            type string;\n"
+        "        }\n"
+        "    }\n"
+        "    leaf foo {\n"
+        "        type string;\n"
+        "    }\n"
+        "    leaf foo2 {\n"
+        "        type uint8;\n"
+        "    }\n"
+        "    container c {\n"
+        "        leaf x {\n"
+        "            type string;\n"
+        "        }\n"
+        "        list ll {\n"
+        "            key \"a\";\n"
+        "            leaf a {\n"
+        "                type string;\n"
+        "            }\n"
+        "            list ll {\n"
+        "                key \"a\";\n"
+        "                leaf a {\n"
+        "                    type string;\n"
+        "                }\n"
+        "                leaf b {\n"
+        "                    type string;\n"
+        "                }\n"
+        "            }\n"
+        "        }\n"
+        "        leaf-list ll2 {\n"
+        "            type string;\n"
+        "        }\n"
+        "    }\n"
+        "}";
+
+static int
+setup(void **state)
+{
+    UTEST_SETUP;
+
+    UTEST_ADD_MODULE(schema_a, LYS_IN_YANG, NULL, NULL);
+
+    return 0;
+}
+
+static void
+test_hash(void **state)
+{
+    const char *data =
+            "<l1 xmlns=\"urn:tests:a\">\n"
+            "    <a>a1</a>\n"
+            "    <b>b1</b>\n"
+            "    <c>c1</c>\n"
+            "</l1>\n"
+            "<l1 xmlns=\"urn:tests:a\">\n"
+            "    <a>a2</a>\n"
+            "    <b>b2</b>\n"
+            "</l1>\n"
+            "<l1 xmlns=\"urn:tests:a\">\n"
+            "    <a>a3</a>\n"
+            "    <b>b3</b>\n"
+            "    <c>c3</c>\n"
+            "</l1>\n"
+            "<foo xmlns=\"urn:tests:a\">foo value</foo>\n"
+            "<c xmlns=\"urn:tests:a\">\n"
+            "    <x>val</x>\n"
+            "    <ll>\n"
+            "        <a>val_a</a>\n"
+            "        <ll>\n"
+            "            <a>val_a</a>\n"
+            "            <b>val</b>\n"
+            "        </ll>\n"
+            "        <ll>\n"
+            "            <a>val_b</a>\n"
+            "        </ll>\n"
+            "    </ll>\n"
+            "    <ll>\n"
+            "        <a>val_b</a>\n"
+            "        <ll>\n"
+            "            <a>val_a</a>\n"
+            "        </ll>\n"
+            "        <ll>\n"
+            "            <a>val_b</a>\n"
+            "            <b>val</b>\n"
+            "        </ll>\n"
+            "    </ll>\n"
+            "    <ll>\n"
+            "        <a>val_c</a>\n"
+            "        <ll>\n"
+            "            <a>val_a</a>\n"
+            "        </ll>\n"
+            "        <ll>\n"
+            "            <a>val_b</a>\n"
+            "        </ll>\n"
+            "    </ll>\n"
+            "    <ll2>one</ll2>\n"
+            "    <ll2>two</ll2>\n"
+            "    <ll2>three</ll2>\n"
+            "    <ll2>four</ll2>\n"
+            "</c>";
+    struct lyd_node *tree, *node;
+    struct ly_set *set;
+
+    assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(UTEST_LYCTX, 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);
+}
+
+static void
+test_toplevel(void **state)
+{
+    const char *schema_b =
+            "module b {\n"
+            "    namespace urn:tests:b;\n"
+            "    prefix b;\n"
+            "    yang-version 1.1;\n"
+            "\n"
+            "    list l2 {\n"
+            "        key \"a\";\n"
+            "        leaf a {\n"
+            "            type uint16;\n"
+            "        }\n"
+            "        leaf b {\n"
+            "            type uint16;\n"
+            "        }\n"
+            "    }\n"
+            "}";
+    const char *data =
+            "<l1 xmlns=\"urn:tests:a\">\n"
+            "    <a>a1</a>\n"
+            "    <b>b1</b>\n"
+            "    <c>c1</c>\n"
+            "</l1>\n"
+            "<l1 xmlns=\"urn:tests:a\">\n"
+            "    <a>a2</a>\n"
+            "    <b>b2</b>\n"
+            "</l1>\n"
+            "<l1 xmlns=\"urn:tests:a\">\n"
+            "    <a>a3</a>\n"
+            "    <b>b3</b>\n"
+            "    <c>c3</c>\n"
+            "</l1>\n"
+            "<foo xmlns=\"urn:tests:a\">foo value</foo>\n"
+            "<l2 xmlns=\"urn:tests:b\">\n"
+            "    <a>1</a>\n"
+            "    <b>1</b>\n"
+            "</l2>\n"
+            "<l2 xmlns=\"urn:tests:b\">\n"
+            "    <a>2</a>\n"
+            "    <b>1</b>\n"
+            "</l2>\n"
+            "<l2 xmlns=\"urn:tests:b\">\n"
+            "    <a>3</a>\n"
+            "    <b>1</b>\n"
+            "</l2>";
+    struct lyd_node *tree;
+    struct ly_set *set;
+
+    UTEST_ADD_MODULE(schema_b, LYS_IN_YANG, NULL, NULL);
+
+    assert_int_equal(LY_SUCCESS, lyd_parse_data_mem(UTEST_LYCTX, 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);
+}
+
+static void
+test_atomize(void **state)
+{
+    struct ly_set *set;
+    const struct lys_module *mod;
+
+    mod = ly_ctx_get_module_latest(UTEST_LYCTX, "a");
+    assert_non_null(mod);
+
+    /* some random paths just making sure the API function works */
+    assert_int_equal(LY_SUCCESS, lys_find_xpath_atoms(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_find_xpath_atoms(mod->compiled->data, "//.", 0, &set));
+    assert_in_range(set->count, 16, UINT32_MAX);
+
+    ly_set_free(set, NULL);
+
+    assert_int_equal(LY_SUCCESS, lys_find_xpath_atoms(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)
+{
+    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(UTEST_LYCTX, 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);
+}
+
+int
+main(void)
+{
+    const struct CMUnitTest tests[] = {
+        UTEST(test_hash, setup),
+        UTEST(test_toplevel, setup),
+        UTEST(test_atomize, setup),
+        UTEST(test_canonize, setup),
+    };
+
+    return cmocka_run_group_tests(tests, NULL, NULL);
+}