Adding upstream version 2.1.30.upstream/2.1.30upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 756 insertions, 0 deletions

diff --git a/tests/utests/data/test_merge.c b/tests/utests/data/test_merge.c
new file mode 100644
index 0000000..3e7b772
--- /dev/null
+++ b/tests/utests/data/test_merge.c
@@ -0,0 +1,756 @@
+/**
+ * @file test_merge.c
+ * @author Michal Vasko <mvasko@cesnet.cz>
+ * @brief tests for complex data merges.
+ *
+ * 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 "libyang.h"
+
+#define LYD_TREE_CREATE(INPUT, MODEL) \
+                CHECK_PARSE_LYD_PARAM(INPUT, LYD_XML, 0, LYD_VALIDATE_PRESENT, LY_SUCCESS, MODEL)
+
+#define CONTEXT_CREATE \
+                CONTEXT_CREATE_PATH(NULL)
+
+#define LYD_TREE_CHECK_CHAR(MODEL, TEXT, PARAMS) \
+                CHECK_LYD_STRING_PARAM(MODEL, TEXT, LYD_XML, LYD_PRINT_WITHSIBLINGS | PARAMS)
+
+static void
+test_batch(void **state)
+{
+    const char *start =
+            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+            "  <module>\n"
+            "    <name>yang</name>\n"
+            "    <revision>2016-02-11</revision>\n"
+            "    <conformance-type>implement</conformance-type>\n"
+            "  </module>\n"
+            "</modules-state>\n";
+    const char *data[] = {
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-yang-library</name>\n"
+        "    <revision>2016-02-01</revision>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf-acm</name>\n"
+        "    <revision>2012-02-22</revision>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf</name>\n"
+        "    <revision>2011-06-01</revision>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf-monitoring</name>\n"
+        "    <revision>2010-10-04</revision>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf-with-defaults</name>\n"
+        "    <revision>2011-06-01</revision>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>yang</name>\n"
+        "    <revision>2016-02-11</revision>\n"
+        "    <namespace>urn:ietf:params:xml:ns:yang:1</namespace>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-yang-library</name>\n"
+        "    <revision>2016-02-01</revision>\n"
+        "    <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf-acm</name>\n"
+        "    <revision>2012-02-22</revision>\n"
+        "    <namespace>urn:ietf:params:xml:ns:yang:ietf-netconf-acm</namespace>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf</name>\n"
+        "    <revision>2011-06-01</revision>\n"
+        "    <namespace>urn:ietf:params:xml:ns:netconf:base:1.0</namespace>\n"
+        "    <feature>writable-running</feature>\n"
+        "    <feature>candidate</feature>\n"
+        "    <feature>rollback-on-error</feature>\n"
+        "    <feature>validate</feature>\n"
+        "    <feature>startup</feature>\n"
+        "    <feature>xpath</feature>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf-monitoring</name>\n"
+        "    <revision>2010-10-04</revision>\n"
+        "    <namespace>urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring</namespace>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n",
+        "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+        "  <module>\n"
+        "    <name>ietf-netconf-with-defaults</name>\n"
+        "    <revision>2011-06-01</revision>\n"
+        "    <namespace>urn:ietf:params:xml:ns:yang:ietf-netconf-with-defaults</namespace>\n"
+        "    <conformance-type>implement</conformance-type>\n"
+        "  </module>\n"
+        "</modules-state>\n"
+    };
+    const char *output_template =
+            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">\n"
+            "  <module>\n"
+            "    <name>yang</name>\n"
+            "    <revision>2016-02-11</revision>\n"
+            "    <namespace>urn:ietf:params:xml:ns:yang:1</namespace>\n"
+            "    <conformance-type>implement</conformance-type>\n"
+            "  </module>\n"
+            "  <module>\n"
+            "    <name>ietf-yang-library</name>\n"
+            "    <revision>2016-02-01</revision>\n"
+            "    <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>\n"
+            "    <conformance-type>implement</conformance-type>\n"
+            "  </module>\n"
+            "  <module>\n"
+            "    <name>ietf-netconf-acm</name>\n"
+            "    <revision>2012-02-22</revision>\n"
+            "    <namespace>urn:ietf:params:xml:ns:yang:ietf-netconf-acm</namespace>\n"
+            "    <conformance-type>implement</conformance-type>\n"
+            "  </module>\n"
+            "  <module>\n"
+            "    <name>ietf-netconf</name>\n"
+            "    <revision>2011-06-01</revision>\n"
+            "    <namespace>urn:ietf:params:xml:ns:netconf:base:1.0</namespace>\n"
+            "    <feature>writable-running</feature>\n"
+            "    <feature>candidate</feature>\n"
+            "    <feature>rollback-on-error</feature>\n"
+            "    <feature>validate</feature>\n"
+            "    <feature>startup</feature>\n"
+            "    <feature>xpath</feature>\n"
+            "    <conformance-type>implement</conformance-type>\n"
+            "  </module>\n"
+            "  <module>\n"
+            "    <name>ietf-netconf-monitoring</name>\n"
+            "    <revision>2010-10-04</revision>\n"
+            "    <namespace>urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring</namespace>\n"
+            "    <conformance-type>implement</conformance-type>\n"
+            "  </module>\n"
+            "  <module>\n"
+            "    <name>ietf-netconf-with-defaults</name>\n"
+            "    <revision>2011-06-01</revision>\n"
+            "    <namespace>urn:ietf:params:xml:ns:yang:ietf-netconf-with-defaults</namespace>\n"
+            "    <conformance-type>implement</conformance-type>\n"
+            "  </module>\n"
+            "</modules-state>\n";
+
+    struct lyd_node *target;
+
+    CHECK_PARSE_LYD_PARAM(start, LYD_XML, LYD_PARSE_ONLY, 0, LY_SUCCESS, target);
+
+    for (int32_t i = 0; i < 11; ++i) {
+        struct lyd_node *source;
+
+        CHECK_PARSE_LYD_PARAM(data[i], LYD_XML, LYD_PARSE_ONLY, 0, LY_SUCCESS, source);
+        assert_int_equal(LY_SUCCESS, lyd_merge_siblings(&target, source, LYD_MERGE_DESTRUCT));
+    }
+
+    LYD_TREE_CHECK_CHAR(target, output_template, 0);
+
+    lyd_free_all(target);
+}
+
+static void
+test_leaf(void **state)
+{
+    const char *sch = "module x {"
+            "  namespace urn:x;"
+            "  prefix x;"
+            "    container A {"
+            "      leaf f1 {type string;}"
+            "      container B {"
+            "        leaf f2 {type string;}"
+            "      }"
+            "    }"
+            "  }";
+    const char *trg = "<A xmlns=\"urn:x\"> <f1>block</f1> </A>";
+    const char *src = "<A xmlns=\"urn:x\"> <f1>aa</f1> <B> <f2>bb</f2> </B> </A>";
+    const char *result = "<A xmlns=\"urn:x\"><f1>aa</f1><B><f2>bb</f2></B></A>";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    /* merge them */
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    /* check the result */
+    LYD_TREE_CHECK_CHAR(target, result, LYD_PRINT_SHRINK);
+
+    lyd_free_all(target);
+    lyd_free_all(source);
+}
+
+static void
+test_container(void **state)
+{
+    const char *sch =
+            "module A {\n"
+            "    namespace \"aa:A\";\n"
+            "    prefix A;\n"
+            "    container A {\n"
+            "        leaf f1 {type string;}\n"
+            "        container B {\n"
+            "            leaf f2 {type string;}\n"
+            "        }\n"
+            "        container C {\n"
+            "            leaf f3 {type string;}\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+
+    const char *trg = "<A xmlns=\"aa:A\"> <B> <f2>aaa</f2> </B> </A>";
+    const char *src = "<A xmlns=\"aa:A\"> <C> <f3>bbb</f3> </C> </A>";
+    const char *result = "<A xmlns=\"aa:A\"><B><f2>aaa</f2></B><C><f3>bbb</f3></C></A>";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    /* merge them */
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    /* check the result */
+    LYD_TREE_CHECK_CHAR(target, result, LYD_PRINT_SHRINK);
+
+    /* destroy */
+    lyd_free_all(source);
+    lyd_free_all(target);
+}
+
+static void
+test_list(void **state)
+{
+    const char *sch =
+            "module merge {\n"
+            "    namespace \"http://test/merge\";\n"
+            "    prefix merge;\n"
+            "\n"
+            "    container inner1 {\n"
+            "        list b-list1 {\n"
+            "            key p1;\n"
+            "            leaf p1 {\n"
+            "                type uint8;\n"
+            "            }\n"
+            "            leaf p2 {\n"
+            "                type string;\n"
+            "            }\n"
+            "            leaf p3 {\n"
+            "                type boolean;\n"
+            "                default false;\n"
+            "            }\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+
+    const char *trg =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>a</p2>\n"
+            "    <p3>true</p3>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    const char *src =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>b</p2>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    const char *result =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>b</p2>\n"
+            "    <p3>true</p3>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    /* merge them */
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    /* check the result */
+    LYD_TREE_CHECK_CHAR(target, result, 0);
+
+    lyd_free_all(target);
+    lyd_free_all(source);
+}
+
+static void
+test_list2(void **state)
+{
+    const char *sch =
+            "module merge {\n"
+            "    namespace \"http://test/merge\";\n"
+            "    prefix merge;\n"
+            "\n"
+            "    container inner1 {\n"
+            "        list b-list1 {\n"
+            "            key p1;\n"
+            "            leaf p1 {\n"
+            "                type uint8;\n"
+            "            }\n"
+            "            leaf p2 {\n"
+            "                type string;\n"
+            "            }\n"
+            "            container inner2 {\n"
+            "                leaf p3 {\n"
+            "                    type boolean;\n"
+            "                    default false;\n"
+            "                }\n"
+            "                leaf p4 {\n"
+            "                    type string;\n"
+            "                }\n"
+            "            }\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+
+    const char *trg =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>a</p2>\n"
+            "    <inner2>\n"
+            "      <p4>val</p4>\n"
+            "    </inner2>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    const char *src =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>b</p2>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    const char *result =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>b</p2>\n"
+            "    <inner2>\n"
+            "      <p4>val</p4>\n"
+            "    </inner2>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    /* merge them */
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    /* check the result */
+    LYD_TREE_CHECK_CHAR(target, result, 0);
+
+    lyd_free_all(source);
+    lyd_free_all(target);
+}
+
+static void
+test_dup_inst_list(void **state)
+{
+    const char *sch =
+            "module merge {\n"
+            "    namespace \"http://test/merge\";\n"
+            "    prefix merge;\n"
+            "\n"
+            "    container inner1 {\n"
+            "        config false;\n"
+            "        list b-list1 {\n"
+            "            leaf p1 {\n"
+            "                type uint8;\n"
+            "            }\n"
+            "            leaf p2 {\n"
+            "                type string;\n"
+            "            }\n"
+            "            container inner2 {\n"
+            "                leaf p4 {\n"
+            "                    type string;\n"
+            "                }\n"
+            "            }\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+
+    const char *trg =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>b</p2>\n"
+            "  </b-list1>\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>a</p2>\n"
+            "    <inner2>\n"
+            "      <p4>val</p4>\n"
+            "    </inner2>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    const char *src =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>b</p2>\n"
+            "  </b-list1>\n"
+            "  <b-list1>\n"
+            "    <p1>2</p1>\n"
+            "    <p2>a</p2>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    const char *result =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>b</p2>\n"
+            "  </b-list1>\n"
+            "  <b-list1>\n"
+            "    <p1>1</p1>\n"
+            "    <p2>a</p2>\n"
+            "    <inner2>\n"
+            "      <p4>val</p4>\n"
+            "    </inner2>\n"
+            "  </b-list1>\n"
+            "  <b-list1>\n"
+            "    <p1>2</p1>\n"
+            "    <p2>a</p2>\n"
+            "  </b-list1>\n"
+            "</inner1>\n";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    /* merge them */
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    /* check the result */
+    LYD_TREE_CHECK_CHAR(target, result, 0);
+
+    lyd_free_all(source);
+    lyd_free_all(target);
+}
+
+static void
+test_dup_inst_llist(void **state)
+{
+    const char *sch =
+            "module merge {\n"
+            "    namespace \"http://test/merge\";\n"
+            "    prefix merge;\n"
+            "\n"
+            "    container inner1 {\n"
+            "        config false;\n"
+            "        leaf-list b-llist1 {\n"
+            "            type string;\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+
+    const char *trg =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>b</b-llist1>\n"
+            "  <b-llist1>c</b-llist1>\n"
+            "  <b-llist1>d</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>b</b-llist1>\n"
+            "  <b-llist1>c</b-llist1>\n"
+            "  <b-llist1>d</b-llist1>\n"
+            "</inner1>\n";
+    const char *src =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-llist1>d</b-llist1>\n"
+            "  <b-llist1>c</b-llist1>\n"
+            "  <b-llist1>b</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>f</b-llist1>\n"
+            "  <b-llist1>f</b-llist1>\n"
+            "</inner1>\n";
+    const char *result =
+            "<inner1 xmlns=\"http://test/merge\">\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>b</b-llist1>\n"
+            "  <b-llist1>c</b-llist1>\n"
+            "  <b-llist1>d</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>b</b-llist1>\n"
+            "  <b-llist1>c</b-llist1>\n"
+            "  <b-llist1>d</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>a</b-llist1>\n"
+            "  <b-llist1>f</b-llist1>\n"
+            "  <b-llist1>f</b-llist1>\n"
+            "</inner1>\n";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    /* merge them */
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    /* check the result */
+    LYD_TREE_CHECK_CHAR(target, result, 0);
+
+    lyd_free_all(source);
+    lyd_free_all(target);
+}
+
+static void
+test_case(void **state)
+{
+    const char *sch =
+            "module merge {\n"
+            "    namespace \"http://test/merge\";\n"
+            "    prefix merge;\n"
+            "    container cont {\n"
+            "        choice ch {\n"
+            "            container inner {\n"
+            "                leaf p1 {\n"
+            "                    type string;\n"
+            "                }\n"
+            "            }\n"
+            "            case c2 {\n"
+            "                leaf p1 {\n"
+            "                    type string;\n"
+            "                }\n"
+            "            }\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+
+    const char *trg =
+            "<cont xmlns=\"http://test/merge\">\n"
+            "  <inner>\n"
+            "    <p1>1</p1>\n"
+            "  </inner>\n"
+            "</cont>\n";
+    const char *src =
+            "<cont xmlns=\"http://test/merge\">\n"
+            "  <p1>1</p1>\n"
+            "</cont>\n";
+    const char *result =
+            "<cont xmlns=\"http://test/merge\">\n"
+            "  <p1>1</p1>\n"
+            "</cont>\n";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    /* merge them */
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    /* check the result */
+    LYD_TREE_CHECK_CHAR(target, result, 0);
+
+    lyd_free_all(source);
+    lyd_free_all(target);
+}
+
+static void
+test_dflt(void **state)
+{
+    const char *sch =
+            "module merge-dflt {\n"
+            "    namespace \"urn:merge-dflt\";\n"
+            "    prefix md;\n"
+            "    container top {\n"
+            "        leaf a {\n"
+            "            type string;\n"
+            "        }\n"
+            "        leaf b {\n"
+            "            type string;\n"
+            "        }\n"
+            "        leaf c {\n"
+            "            type string;\n"
+            "            default \"c_dflt\";\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+    struct lyd_node *target = NULL;
+    struct lyd_node *source = NULL;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    assert_int_equal(lyd_new_path(NULL, UTEST_LYCTX, "/merge-dflt:top/c", "c_dflt", 0, &target), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    assert_int_equal(lyd_new_path(NULL, UTEST_LYCTX, "/merge-dflt:top/a", "a_val", 0, &source), LY_SUCCESS);
+    assert_int_equal(lyd_new_path(source, UTEST_LYCTX, "/merge-dflt:top/b", "b_val", 0, NULL), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&source, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    assert_int_equal(lyd_merge_siblings(&target, source, LYD_MERGE_DESTRUCT | LYD_MERGE_DEFAULTS), LY_SUCCESS);
+    source = NULL;
+
+    /* c should be replaced and now be default */
+    assert_string_equal(lyd_child(target)->prev->schema->name, "c");
+    assert_true(lyd_child(target)->prev->flags & LYD_DEFAULT);
+
+    lyd_free_all(target);
+    lyd_free_all(source);
+}
+
+static void
+test_dflt2(void **state)
+{
+    const char *sch =
+            "module merge-dflt {\n"
+            "    namespace \"urn:merge-dflt\";\n"
+            "    prefix md;\n"
+            "    container top {\n"
+            "        leaf a {\n"
+            "            type string;\n"
+            "        }\n"
+            "        leaf b {\n"
+            "            type string;\n"
+            "        }\n"
+            "        leaf c {\n"
+            "            type string;\n"
+            "            default \"c_dflt\";\n"
+            "        }\n"
+            "    }\n"
+            "}\n";
+    struct lyd_node *target;
+    struct lyd_node *source;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    assert_int_equal(lyd_new_path(NULL, UTEST_LYCTX, "/merge-dflt:top/c", "c_dflt", 0, &target), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&target, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    assert_int_equal(lyd_new_path(NULL, UTEST_LYCTX, "/merge-dflt:top/a", "a_val", 0, &source), LY_SUCCESS);
+    assert_int_equal(lyd_new_path(source, UTEST_LYCTX, "/merge-dflt:top/b", "b_val", 0, NULL), LY_SUCCESS);
+    assert_int_equal(lyd_validate_all(&source, NULL, LYD_VALIDATE_PRESENT, NULL), LY_SUCCESS);
+
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+
+    /* c should not be replaced, so c remains not default */
+    assert_false(lyd_child(target)->flags & LYD_DEFAULT);
+
+    lyd_free_all(target);
+    lyd_free_all(source);
+}
+
+static void
+test_leafrefs(void **state)
+{
+    const char *sch = "module x {"
+            "  namespace urn:x;"
+            "  prefix x;"
+            "  list l {"
+            "    key n;"
+            "    leaf n { type string; }"
+            "    leaf t { type string; }"
+            "    leaf r { type leafref { path '/l/n'; } }}}";
+    const char *trg = "<l xmlns=\"urn:x\"><n>a</n></l>"
+            "<l xmlns=\"urn:x\"><n>b</n><r>a</r></l>";
+    const char *src = "<l xmlns=\"urn:x\"><n>c</n><r>a</r></l>"
+            "<l xmlns=\"urn:x\"><n>a</n><t>*</t></l>";
+    const char *res = "<l xmlns=\"urn:x\"><n>a</n><t>*</t></l>"
+            "<l xmlns=\"urn:x\"><n>b</n><r>a</r></l>"
+            "<l xmlns=\"urn:x\"><n>c</n><r>a</r></l>";
+    struct lyd_node *source, *target;
+
+    UTEST_ADD_MODULE(sch, LYS_IN_YANG, NULL, NULL);
+
+    LYD_TREE_CREATE(src, source);
+    LYD_TREE_CREATE(trg, target);
+
+    assert_int_equal(lyd_merge_siblings(&target, source, 0), LY_SUCCESS);
+
+    LYD_TREE_CHECK_CHAR(target, res, LYD_PRINT_SHRINK);
+
+    lyd_free_all(source);
+    lyd_free_all(target);
+}
+
+int
+main(void)
+{
+    const struct CMUnitTest tests[] = {
+        UTEST(test_batch),
+        UTEST(test_leaf),
+        UTEST(test_container),
+        UTEST(test_list),
+        UTEST(test_list2),
+        UTEST(test_dup_inst_list),
+        UTEST(test_dup_inst_llist),
+        UTEST(test_case),
+        UTEST(test_dflt),
+        UTEST(test_dflt2),
+        UTEST(test_leafrefs),
+    };
+
+    return cmocka_run_group_tests(tests, NULL, NULL);
+}