/**
 * @file test_schema_mount.c
 * @author Tadeas Vintrlik <xvintr04@stud.fit.vutbr.cz>
 * @author Michal Vasko <mvasko@cesnet.cz>
 * @brief unit tests for Schema Mount extension support
 *
 * Copyright (c) 2021 - 2022 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"

void **glob_state;

static int
setup(void **state)
{
    const char *schema =
            "module sm {yang-version 1.1;namespace \"urn:sm\";prefix \"sm\";"
            "import ietf-yang-schema-mount {prefix yangmnt;}"
            "import ietf-interfaces {prefix if;}"
            "container root {yangmnt:mount-point \"root\";}"
            "container root2 {yangmnt:mount-point \"root\";}"
            "container root3 {"
            "  list ls { key name; leaf name {type string;}"
            "    yangmnt:mount-point \"mnt-root\";"
            "  }"
            "}"
            "container root4 {config false; yangmnt:mount-point \"root\";}"
            "leaf target{type string;}"
            "augment /if:interfaces/if:interface {"
            "  leaf sm-name {type leafref {path \"/sm:target\";}}"
            "}"
            "}";

    UTEST_SETUP;
    glob_state = state;

    assert_int_equal(LY_SUCCESS, ly_ctx_set_searchdir(UTEST_LYCTX, TESTS_DIR_MODULES_YANG));
    assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, NULL));
    assert_non_null(ly_ctx_load_module(UTEST_LYCTX, "iana-if-type", NULL, NULL));

    return 0;
}

static void
test_schema(void **state)
{
    struct lys_module *mod;
    const char *schema;
    char *str;

    /* invalid */
    schema =
            "module sm {\n"
            "  namespace \"urn:sm\";\n"
            "  prefix sm;\n"
            "\n"
            "  import ietf-yang-schema-mount {\n"
            "    prefix yangmnt;\n"
            "  }\n"
            "\n"
            "  container root {\n"
            "    yangmnt:mount-point \"root\";\n"
            "  }\n"
            "}\n";
    assert_int_equal(LY_EINVAL, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, NULL));
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Extension \"yangmnt:mount-point\" instance not allowed in YANG version 1 module.",
            "/sm:root/{extension='yangmnt:mount-point'}/root");

    schema =
            "module sm {\n"
            "  yang-version 1.1;\n"
            "  namespace \"urn:sm\";\n"
            "  prefix sm;\n"
            "\n"
            "  import ietf-yang-schema-mount {\n"
            "    prefix yangmnt;\n"
            "  }\n"
            "\n"
            "  yangmnt:mount-point \"root\";\n"
            "}\n";
    assert_int_equal(LY_EINVAL, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, NULL));
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Extension \"yangmnt:mount-point\" instance allowed only in container or list statement.",
            "/sm:{extension='yangmnt:mount-point'}/root");

    schema =
            "module sm {\n"
            "  yang-version 1.1;\n"
            "  namespace \"urn:sm\";\n"
            "  prefix sm;\n"
            "\n"
            "  import ietf-yang-schema-mount {\n"
            "    prefix yangmnt;\n"
            "  }\n"
            "\n"
            "  container root {\n"
            "    leaf l {\n"
            "      type empty;\n"
            "      yangmnt:mount-point \"root\";\n"
            "    }\n"
            "  }\n"
            "}\n";
    assert_int_equal(LY_EINVAL, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, NULL));
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Extension \"yangmnt:mount-point\" instance allowed only in container or list statement.",
            "/sm:root/l/{extension='yangmnt:mount-point'}/root");

    schema =
            "module sm {\n"
            "  yang-version 1.1;\n"
            "  namespace \"urn:sm\";\n"
            "  prefix sm;\n"
            "\n"
            "  import ietf-yang-schema-mount {\n"
            "    prefix yangmnt;\n"
            "  }\n"
            "\n"
            "  list l {\n"
            "    key \"k\";\n"
            "    leaf k {\n"
            "      type string;\n"
            "    }\n"
            "    yangmnt:mount-point \"root\";\n"
            "    yangmnt:mount-point \"root2\";\n"
            "  }\n"
            "}\n";
    assert_int_equal(LY_EINVAL, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, NULL));
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Multiple extension \"yangmnt:mount-point\" instances.",
            "/sm:l/{extension='yangmnt:mount-point'}/root");

    /* valid */
    schema =
            "module sm {\n"
            "  yang-version 1.1;\n"
            "  namespace \"urn:sm\";\n"
            "  prefix sm;\n"
            "\n"
            "  import ietf-yang-schema-mount {\n"
            "    prefix yangmnt;\n"
            "  }\n"
            "\n"
            "  container root {\n"
            "    yangmnt:mount-point \"root\";\n"
            "  }\n"
            "}\n";
    assert_int_equal(LY_SUCCESS, lys_parse_mem(UTEST_LYCTX, schema, LYS_IN_YANG, &mod));
    lys_print_mem(&str, mod, LYS_OUT_YANG, 0);
    assert_string_equal(str, schema);
    free(str);
}

static LY_ERR
test_ext_data_clb(const struct lysc_ext_instance *ext, void *user_data, void **ext_data, ly_bool *ext_data_free)
{
    void **state = glob_state;
    struct lyd_node *data = NULL;

    (void)ext;

    if (user_data) {
        CHECK_PARSE_LYD_PARAM(user_data, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    }

    *ext_data = data;
    *ext_data_free = 1;
    return LY_SUCCESS;
}

static void
test_parse_invalid(void **state)
{
    const char *xml, *json;
    struct lyd_node *data;

    /* no callback set */
    xml =
            "<root xmlns=\"urn:sm\">"
            "  <unknown xmlns=\"unknown\">"
            "    <interface>"
            "      <name>bu</name>"
            "      <type xmlns:ii=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ii:ethernetCsmacd</type>"
            "    </interface>"
            "  </unknown>"
            "</root>";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, 0, LYD_VALIDATE_PRESENT, LY_EINVAL, data);
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": Failed to get extension data, no callback set.",
            NULL);

    json =
            "{"
            "  \"sm:root\": {"
            "    \"unknown:unknown\": {"
            "      \"interface\": ["
            "        {"
            "          \"name\": \"bu\","
            "          \"type\": \"iana-if-type:ethernetCsmacd\""
            "        }"
            "      ]"
            "    }"
            "  }"
            "}";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, 0, LYD_VALIDATE_PRESENT, LY_EINVAL, data);
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": Failed to get extension data, no callback set.",
            NULL);

    /* unknown data */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb, NULL);
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, 0, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    assert_string_equal(LYD_NAME(data), "root");
    assert_null(lyd_child(data));
    assert_non_null(data->next);
    assert_true(data->next->flags & LYD_DEFAULT);
    lyd_free_siblings(data);

    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("No module with namespace \"unknown\" in the context.",
            "Data location \"/sm:root\", line number 1.");

    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, 0, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    assert_string_equal(LYD_NAME(data), "root");
    assert_null(lyd_child(data));
    assert_non_null(data->next);
    assert_true(data->next->flags & LYD_DEFAULT);
    lyd_free_siblings(data);

    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("No module named \"unknown\" in the context.",
            "Data location \"/sm:root\", line number 1.");

    /* missing required callback data */
    xml =
            "<root xmlns=\"urn:sm\">"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">"
            "    <interface>"
            "      <name>bu</name>"
            "    </interface>"
            "  </interfaces>"
            "</root>";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Node \"interfaces\" not found as a child of \"root\" node.",
            "Data location \"/sm:root\", line number 1.");

    json =
            "{"
            "  \"sm:root\": {"
            "    \"ietf-interfaces:interfaces\": {"
            "      \"interface\": ["
            "        {"
            "          \"name\": \"bu\""
            "        }"
            "      ]"
            "    }"
            "  }"
            "}";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Node \"interfaces\" not found as a child of \"root\" node.",
            "Data location \"/sm:root\", line number 1.");

    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>");
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Node \"interfaces\" not found as a child of \"root\" node.",
            "Data location \"/sm:root\", line number 1.");
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Node \"interfaces\" not found as a child of \"root\" node.",
            "Data location \"/sm:root\", line number 1.");

    /* missing module in yang-library data */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <inline/>"
            "  </mount-point>"
            "</schema-mounts>");
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Node \"interfaces\" not found as a child of \"root\" node.",
            "Data location \"/sm:root\", line number 1.");
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Node \"interfaces\" not found as a child of \"root\" node.",
            "Data location \"/sm:root\", line number 1.");

    /* callback data correct, invalid YANG data */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <inline/>"
            "  </mount-point>"
            "</schema-mounts>");
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Mandatory node \"type\" instance does not exist.",
            "Schema location \"/ietf-interfaces:interfaces/interface/type\".");
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Mandatory node \"type\" instance does not exist.",
            "Schema location \"/ietf-interfaces:interfaces/interface/type\".");

    /* same validation fail in separate validation */
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT | LYD_PARSE_ONLY, 0, LY_SUCCESS, data);
    assert_int_equal(LY_EVALID, lyd_validate_all(&data, NULL, LYD_VALIDATE_PRESENT, NULL));
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Mandatory node \"type\" instance does not exist.",
            "Schema location \"/ietf-interfaces:interfaces/interface/type\".");
    lyd_free_siblings(data);

    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT | LYD_PARSE_ONLY, 0, LY_SUCCESS, data);
    assert_int_equal(LY_EVALID, lyd_validate_all(&data, NULL, LYD_VALIDATE_PRESENT, NULL));
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Mandatory node \"type\" instance does not exist.",
            "Schema location \"/ietf-interfaces:interfaces/interface/type\".");
    lyd_free_siblings(data);

    /* success */
    xml =
            "<root xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "</root>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);

    json =
            "{\n"
            "  \"sm:root\": {\n"
            "    \"ietf-interfaces:interfaces\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"bu\",\n"
            "          \"type\": \"iana-if-type:ethernetCsmacd\"\n"
            "        }\n"
            "      ]\n"
            "    }\n"
            "  }\n"
            "}\n";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, json, LYD_JSON, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);
}

static void
test_parse_inline(void **state)
{
    const char *xml, *json;
    char *lyb;
    struct lyd_node *data;
    const struct ly_ctx *ext_ctx;

    /* valid */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <inline/>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "  <interfaces-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <oper-status>not-present</oper-status>\n"
            "      <statistics>\n"
            "        <discontinuity-time>2022-01-01T10:00:00-00:00</discontinuity-time>\n"
            "      </statistics>\n"
            "    </interface>\n"
            "  </interfaces-state>\n"
            "</root>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    ext_ctx = LYD_CTX(lyd_child(data));
    lyd_free_siblings(data);

    json =
            "{\n"
            "  \"sm:root\": {\n"
            "    \"ietf-interfaces:interfaces\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"bu\",\n"
            "          \"type\": \"iana-if-type:ethernetCsmacd\"\n"
            "        }\n"
            "      ]\n"
            "    },\n"
            "    \"ietf-interfaces:interfaces-state\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"bu\",\n"
            "          \"type\": \"iana-if-type:ethernetCsmacd\",\n"
            "          \"oper-status\": \"not-present\",\n"
            "          \"statistics\": {\n"
            "            \"discontinuity-time\": \"2022-01-01T10:00:00-00:00\"\n"
            "          }\n"
            "        }\n"
            "      ]\n"
            "    }\n"
            "  }\n"
            "}\n";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, json, LYD_JSON, LYD_PRINT_WITHSIBLINGS);
    assert_ptr_equal(ext_ctx, LYD_CTX(lyd_child(data)));
    lyd_free_siblings(data);

    /* different yang-lib data with the same content-id */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-ip</name>"
            "      <revision>2014-06-16</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <inline/>"
            "  </mount-point>"
            "</schema-mounts>");
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    assert_ptr_not_equal(ext_ctx, LYD_CTX(lyd_child(data)));
    ext_ctx = LYD_CTX(lyd_child(data));
    lyd_free_siblings(data);

    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, json, LYD_JSON, LYD_PRINT_WITHSIBLINGS);
    assert_ptr_equal(ext_ctx, LYD_CTX(lyd_child(data)));

    assert_int_equal(LY_SUCCESS, lyd_print_mem(&lyb, data, LYD_LYB, 0));
    lyd_free_siblings(data);

    CHECK_PARSE_LYD_PARAM(lyb, LYD_LYB, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    assert_ptr_equal(ext_ctx, LYD_CTX(lyd_child(data)));
    free(lyb);
    lyd_free_siblings(data);
}

static void
test_parse_shared(void **state)
{
    const char *xml, *json;
    char *lyb;
    struct lyd_node *data;

    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <shared-schema/>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "  <interfaces-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <oper-status>not-present</oper-status>\n"
            "      <statistics>\n"
            "        <discontinuity-time>2022-01-01T10:00:00-00:00</discontinuity-time>\n"
            "      </statistics>\n"
            "    </interface>\n"
            "  </interfaces-state>\n"
            "</root>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);

    json =
            "{\n"
            "  \"sm:root\": {\n"
            "    \"ietf-interfaces:interfaces\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"bu\",\n"
            "          \"type\": \"iana-if-type:ethernetCsmacd\"\n"
            "        }\n"
            "      ]\n"
            "    },\n"
            "    \"ietf-interfaces:interfaces-state\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"bu\",\n"
            "          \"type\": \"iana-if-type:ethernetCsmacd\",\n"
            "          \"oper-status\": \"not-present\",\n"
            "          \"statistics\": {\n"
            "            \"discontinuity-time\": \"2022-01-01T10:00:00-00:00\"\n"
            "          }\n"
            "        }\n"
            "      ]\n"
            "    }\n"
            "  }\n"
            "}\n";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, json, LYD_JSON, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);

    /* different yang-lib data */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-ip</name>"
            "      <revision>2014-06-16</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>2</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <shared-schema/>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root2 xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "  <interfaces-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <oper-status>not-present</oper-status>\n"
            "      <statistics>\n"
            "        <discontinuity-time>2022-01-01T10:00:00-00:00</discontinuity-time>\n"
            "      </statistics>\n"
            "    </interface>\n"
            "  </interfaces-state>\n"
            "</root2>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Shared-schema yang-library content-id \"2\" differs from \"1\" used previously.",
            "/ietf-yang-library:yang-library/content-id");

    /* data for 2 mount points */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <shared-schema/>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "  <interfaces-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <oper-status>not-present</oper-status>\n"
            "      <statistics>\n"
            "        <discontinuity-time>2022-01-01T10:00:00-00:00</discontinuity-time>\n"
            "      </statistics>\n"
            "    </interface>\n"
            "  </interfaces-state>\n"
            "</root>\n"
            "<root2 xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>fu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:fddi</type>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "  <interfaces-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>fu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:fddi</type>\n"
            "      <oper-status>down</oper-status>\n"
            "      <statistics>\n"
            "        <discontinuity-time>2020-01-01T10:00:00-00:00</discontinuity-time>\n"
            "      </statistics>\n"
            "    </interface>\n"
            "  </interfaces-state>\n"
            "</root2>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);

    json =
            "{\n"
            "  \"sm:root\": {\n"
            "    \"ietf-interfaces:interfaces\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"bu\",\n"
            "          \"type\": \"iana-if-type:ethernetCsmacd\"\n"
            "        }\n"
            "      ]\n"
            "    },\n"
            "    \"ietf-interfaces:interfaces-state\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"bu\",\n"
            "          \"type\": \"iana-if-type:ethernetCsmacd\",\n"
            "          \"oper-status\": \"not-present\",\n"
            "          \"statistics\": {\n"
            "            \"discontinuity-time\": \"2022-01-01T10:00:00-00:00\"\n"
            "          }\n"
            "        }\n"
            "      ]\n"
            "    }\n"
            "  },\n"
            "  \"sm:root2\": {\n"
            "    \"ietf-interfaces:interfaces\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"fu\",\n"
            "          \"type\": \"iana-if-type:fddi\"\n"
            "        }\n"
            "      ]\n"
            "    },\n"
            "    \"ietf-interfaces:interfaces-state\": {\n"
            "      \"interface\": [\n"
            "        {\n"
            "          \"name\": \"fu\",\n"
            "          \"type\": \"iana-if-type:fddi\",\n"
            "          \"oper-status\": \"down\",\n"
            "          \"statistics\": {\n"
            "            \"discontinuity-time\": \"2020-01-01T10:00:00-00:00\"\n"
            "          }\n"
            "        }\n"
            "      ]\n"
            "    }\n"
            "  }\n"
            "}\n";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, json, LYD_JSON, LYD_PRINT_WITHSIBLINGS);

    assert_int_equal(LY_SUCCESS, lyd_print_mem(&lyb, data, LYD_LYB, LYD_PRINT_WITHSIBLINGS));
    lyd_free_siblings(data);

    CHECK_PARSE_LYD_PARAM(lyb, LYD_LYB, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    free(lyb);
    lyd_free_siblings(data);
}

static void
test_parse_shared_parent_ref(void **state)
{
    const char *xml, *json;
    struct lyd_node *data;

    /* wrong leafref value */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>sm</name>"
            "      <namespace>urn:sm</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <namespace>"
            "    <prefix>smp</prefix>"
            "    <uri>urn:sm</uri>"
            "  </namespace>"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>mnt-root</label>"
            "    <shared-schema>"
            "      <parent-reference>/smp:target[. = current()/smp:name]</parent-reference>"
            "    </shared-schema>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root3 xmlns=\"urn:sm\">\n"
            "  <ls>\n"
            "    <name>target-value</name>\n"
            "    <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "      <interface>\n"
            "        <name>bu</name>\n"
            "        <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "        <sm-name xmlns=\"urn:sm\">target-value</sm-name>\n"
            "      </interface>\n"
            "    </interfaces>\n"
            "  </ls>\n"
            "</root3>\n"
            "<target xmlns=\"urn:sm\">wrong-target-value</target>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Invalid leafref value \"target-value\" - no target instance \"/sm:target\" with the same value.",
            "Data location \"/ietf-interfaces:interfaces/interface[name='bu']/sm:sm-name\".");

    json =
            "{\n"
            "  \"sm:root3\": {\n"
            "    \"ls\": ["
            "      {\n"
            "        \"name\": \"target-value\",\n"
            "        \"ietf-interfaces:interfaces\": {\n"
            "          \"interface\": [\n"
            "            {\n"
            "              \"name\": \"bu\",\n"
            "              \"type\": \"iana-if-type:ethernetCsmacd\",\n"
            "              \"sm:sm-name\": \"target-value\"\n"
            "            }\n"
            "          ]\n"
            "        }\n"
            "      }\n"
            "    ]\n"
            "  },\n"
            "  \"sm:target\": \"wrong-target-value\"\n"
            "}\n";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_EVALID, data);
    CHECK_LOG_CTX("Ext plugin \"ly2 schema mount v1\": "
            "Invalid leafref value \"target-value\" - no target instance \"/sm:target\" with the same value.",
            "Data location \"/ietf-interfaces:interfaces/interface[name='bu']/sm:sm-name\".");

    /* success */
    xml =
            "<root3 xmlns=\"urn:sm\">\n"
            "  <ls>\n"
            "    <name>target-value</name>\n"
            "    <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "      <interface>\n"
            "        <name>bu</name>\n"
            "        <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "        <sm-name xmlns=\"urn:sm\">target-value</sm-name>\n"
            "      </interface>\n"
            "    </interfaces>\n"
            "  </ls>\n"
            "</root3>\n"
            "<target xmlns=\"urn:sm\">target-value</target>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);

    json =
            "{\n"
            "  \"sm:root3\": {\n"
            "    \"ls\": [\n"
            "      {\n"
            "        \"name\": \"target-value\",\n"
            "        \"ietf-interfaces:interfaces\": {\n"
            "          \"interface\": [\n"
            "            {\n"
            "              \"name\": \"bu\",\n"
            "              \"type\": \"iana-if-type:ethernetCsmacd\",\n"
            "              \"sm:sm-name\": \"target-value\"\n"
            "            }\n"
            "          ]\n"
            "        }\n"
            "      }\n"
            "    ]\n"
            "  },\n"
            "  \"sm:target\": \"target-value\"\n"
            "}\n";
    CHECK_PARSE_LYD_PARAM(json, LYD_JSON, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, json, LYD_JSON, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);
}

static void
test_parse_config(void **state)
{
    const char *xml;
    char *lyb;
    struct lyd_node *data;
    const struct lyd_node *node;

    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <config>false</config>"
            "    <inline/>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <enabled>true</enabled>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "</root>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);

    node = lyd_child(data);
    assert_string_equal(LYD_NAME(node), "interfaces");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = lyd_child(node);
    assert_string_equal(LYD_NAME(node), "interface");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = lyd_child(node);
    assert_string_equal(LYD_NAME(node), "name");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = node->next;
    assert_string_equal(LYD_NAME(node), "type");
    assert_true(node->schema->flags & LYS_CONFIG_R);

    lyd_print_mem(&lyb, data, LYD_LYB, 0);
    lyd_free_siblings(data);
    CHECK_PARSE_LYD_PARAM(lyb, LYD_LYB, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    free(lyb);

    node = lyd_child(data);
    assert_string_equal(LYD_NAME(node), "interfaces");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = lyd_child(node);
    assert_string_equal(LYD_NAME(node), "interface");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = lyd_child(node);
    assert_string_equal(LYD_NAME(node), "name");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = node->next;
    assert_string_equal(LYD_NAME(node), "type");
    assert_true(node->schema->flags & LYS_CONFIG_R);

    lyd_free_siblings(data);

    /* the same effect but use a config false mount point instead of the separate metadata node */
    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <inline/>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root4 xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <enabled>true</enabled>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "</root4>\n";
    CHECK_PARSE_LYD_PARAM(xml, LYD_XML, LYD_PARSE_STRICT, LYD_VALIDATE_PRESENT, LY_SUCCESS, data);
    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);

    node = lyd_child(data->next->next->next);
    assert_string_equal(LYD_NAME(node), "interfaces");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = lyd_child(node);
    assert_string_equal(LYD_NAME(node), "interface");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = lyd_child(node);
    assert_string_equal(LYD_NAME(node), "name");
    assert_true(node->schema->flags & LYS_CONFIG_R);
    node = node->next;
    assert_string_equal(LYD_NAME(node), "type");
    assert_true(node->schema->flags & LYS_CONFIG_R);

    lyd_free_siblings(data);
}

static void
test_new(void **state)
{
    const char *xml;
    const struct lys_module *mod;
    struct lyd_node *data, *node;

    ly_ctx_set_ext_data_clb(UTEST_LYCTX, test_ext_data_clb,
            "<yang-library xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\" "
            "    xmlns:ds=\"urn:ietf:params:xml:ns:yang:ietf-datastores\">"
            "  <module-set>"
            "    <name>test-set</name>"
            "    <module>"
            "      <name>ietf-datastores</name>"
            "      <revision>2018-02-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-datastores</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-library</name>"
            "      <revision>2019-01-04</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-library</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-yang-schema-mount</name>"
            "      <revision>2019-01-14</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-interfaces</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-interfaces</namespace>"
            "    </module>"
            "    <module>"
            "      <name>iana-if-type</name>"
            "      <revision>2014-05-08</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:iana-if-type</namespace>"
            "    </module>"
            "    <module>"
            "      <name>ietf-ip</name>"
            "      <revision>2014-06-16</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-ip</namespace>"
            "    </module>"
            "    <import-only-module>"
            "      <name>ietf-yang-types</name>"
            "      <revision>2013-07-15</revision>"
            "      <namespace>urn:ietf:params:xml:ns:yang:ietf-yang-types</namespace>"
            "    </import-only-module>"
            "  </module-set>"
            "  <schema>"
            "    <name>test-schema</name>"
            "    <module-set>test-set</module-set>"
            "  </schema>"
            "  <datastore>"
            "    <name>ds:running</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <datastore>"
            "    <name>ds:operational</name>"
            "    <schema>test-schema</schema>"
            "  </datastore>"
            "  <content-id>1</content-id>"
            "</yang-library>"
            "<modules-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-library\">"
            "  <module-set-id>1</module-set-id>"
            "</modules-state>"
            "<schema-mounts xmlns=\"urn:ietf:params:xml:ns:yang:ietf-yang-schema-mount\">"
            "  <mount-point>"
            "    <module>sm</module>"
            "    <label>root</label>"
            "    <shared-schema/>"
            "  </mount-point>"
            "</schema-mounts>");
    xml =
            "<root xmlns=\"urn:sm\">\n"
            "  <interfaces xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <ipv4 xmlns=\"urn:ietf:params:xml:ns:yang:ietf-ip\">\n"
            "        <enabled>false</enabled>\n"
            "      </ipv4>\n"
            "    </interface>\n"
            "  </interfaces>\n"
            "  <interfaces-state xmlns=\"urn:ietf:params:xml:ns:yang:ietf-interfaces\">\n"
            "    <interface>\n"
            "      <name>bu</name>\n"
            "      <type xmlns:ianaift=\"urn:ietf:params:xml:ns:yang:iana-if-type\">ianaift:ethernetCsmacd</type>\n"
            "      <oper-status>not-present</oper-status>\n"
            "      <statistics>\n"
            "        <discontinuity-time>2022-01-01T10:00:00-00:00</discontinuity-time>\n"
            "      </statistics>\n"
            "    </interface>\n"
            "  </interfaces-state>\n"
            "</root>\n";

    /* create the data manually with simple new functions */
    mod = ly_ctx_get_module_implemented(UTEST_LYCTX, "sm");
    assert_non_null(mod);
    assert_int_equal(LY_SUCCESS, lyd_new_inner(NULL, mod, "root", 0, &data));

    mod = ly_ctx_get_module_implemented(UTEST_LYCTX, "ietf-interfaces");
    assert_non_null(mod);
    assert_int_equal(LY_SUCCESS, lyd_new_inner(data, mod, "interfaces", 0, &node));
    assert_int_equal(LY_SUCCESS, lyd_new_list(node, NULL, "interface", 0, &node, "bu"));
    assert_int_equal(LY_SUCCESS, lyd_new_term(node, NULL, "type", "iana-if-type:ethernetCsmacd", 0, NULL));
    mod = ly_ctx_get_module_implemented(LYD_CTX(node), "ietf-ip");
    assert_non_null(mod);
    assert_int_equal(LY_SUCCESS, lyd_new_inner(node, mod, "ipv4", 0, &node));
    assert_int_equal(LY_SUCCESS, lyd_new_term(node, NULL, "enabled", "false", 0, NULL));

    mod = ly_ctx_get_module_implemented(UTEST_LYCTX, "ietf-interfaces");
    assert_non_null(mod);
    assert_int_equal(LY_SUCCESS, lyd_new_inner(data, mod, "interfaces-state", 0, &node));
    assert_int_equal(LY_SUCCESS, lyd_new_list(node, NULL, "interface", 0, &node, "bu"));
    assert_int_equal(LY_SUCCESS, lyd_new_term(node, NULL, "type", "iana-if-type:ethernetCsmacd", 0, NULL));
    assert_int_equal(LY_SUCCESS, lyd_new_term(node, NULL, "oper-status", "not-present", 0, NULL));
    assert_int_equal(LY_SUCCESS, lyd_new_inner(node, NULL, "statistics", 0, &node));
    assert_int_equal(LY_SUCCESS, lyd_new_term(node, NULL, "discontinuity-time", "2022-01-01T10:00:00-00:00", 0, NULL));

    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);

    /* create the data using lyd_new_path */
    assert_int_equal(LY_SUCCESS, lyd_new_path(NULL, UTEST_LYCTX,
            "/sm:root/ietf-interfaces:interfaces/interface[name='bu']/type", "iana-if-type:ethernetCsmacd", 0, &data));
    assert_int_equal(LY_SUCCESS, lyd_new_path(data, NULL,
            "/sm:root/ietf-interfaces:interfaces/interface[name='bu']/ietf-ip:ipv4/enabled", "false", 0, NULL));
    assert_int_equal(LY_SUCCESS, lyd_new_path(data, NULL,
            "/sm:root/ietf-interfaces:interfaces-state/interface[name='bu']/type", "iana-if-type:ethernetCsmacd", 0, NULL));
    assert_int_equal(LY_SUCCESS, lyd_new_path(data, NULL,
            "/sm:root/ietf-interfaces:interfaces-state/interface[name='bu']/oper-status", "not-present", 0, NULL));
    assert_int_equal(LY_SUCCESS, lyd_new_path(data, NULL,
            "/sm:root/ietf-interfaces:interfaces-state/interface[name='bu']/statistics/discontinuity-time",
            "2022-01-01T10:00:00-00:00", 0, NULL));

    CHECK_LYD_STRING_PARAM(data, xml, LYD_XML, LYD_PRINT_WITHSIBLINGS);
    lyd_free_siblings(data);
}

int
main(void)
{
    const struct CMUnitTest tests[] = {
        UTEST(test_schema),
        UTEST(test_parse_invalid, setup),
        UTEST(test_parse_inline, setup),
        UTEST(test_parse_shared, setup),
        UTEST(test_parse_shared_parent_ref, setup),
        UTEST(test_parse_config, setup),
        UTEST(test_new, setup),
    };

    return cmocka_run_group_tests(tests, NULL, NULL);
}