110 lines
2.6 KiB
C++
110 lines
2.6 KiB
C++
#include <iostream>
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#include <nlohmann/json-schema.hpp>
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using nlohmann::json;
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using nlohmann::json_uri;
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using nlohmann::json_schema::json_validator;
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static const json rectangle_schema = R"(
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"properties": {
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"width": {
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"$ref": "#/definitions/length",
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"default": 20
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},
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"height": {
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"$ref": "#/definitions/length"
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}
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},
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"definitions": {
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"length": {
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"type": "integer",
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"default": 10
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}
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}
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})"_json;
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static const json quad_schema = R"(
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"properties": {
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"width": {
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"$ref": "#/properties/height",
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"default": 20
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},
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"height": {
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"$ref": "#/definitions/length"
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},
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"depth": {
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"$ref": "default_schema#/definitions/defaultLength"
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},
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"time": {
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"$ref": "#/definitions/time"
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}
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},
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"definitions": {
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"length": {
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"$ref": "default_schema#/definitions/defaultLength",
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"default": 10
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},
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"time": {
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"type": "integer",
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"default": 15
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}
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}
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})"_json;
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static const json default_schema = R"(
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{
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"$schema": "http://json-schema.org/draft-07/schema#",
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"definitions": {
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"defaultLength": {
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"default": 5
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}
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}
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})"_json;
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static void loader(const json_uri &uri, json &schema)
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{
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schema = default_schema;
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}
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int main(void)
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{
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json_validator validator(loader);
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validator.set_root_schema(quad_schema);
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{
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json empty_quad = R"({})"_json;
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const auto default_patch = validator.validate(empty_quad);
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const auto actual = empty_quad.patch(default_patch);
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const auto expected = R"({"height":10,"width":20,"depth":5,"time":15})"_json;
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if (actual != expected) {
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std::cerr << "Patch with defaults contains wrong value: '" << actual << "' instead of expected '" << expected.dump() << "'" << std::endl;
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return 1;
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}
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}
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validator.set_root_schema(rectangle_schema);
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{
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json empty_rectangle = R"({})"_json;
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const auto default_patch = validator.validate(empty_rectangle);
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const auto actual = empty_rectangle.patch(default_patch);
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// height must be 10 according to the default specified in the length definition while width must be 10 overridden by the width element
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const auto expected = R"({"height":10,"width":20})"_json;
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if (actual != expected) {
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std::cerr << "Patch with defaults contains wrong value: '" << actual << "' instead of expected '" << expected.dump() << "'" << std::endl;
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return 1;
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}
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}
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return 0;
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}
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