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✨ implemented JSON Merge Patch (RFC 7396)
SQLite's json1 extension (https://www.sqlite.org/json1.html) supports JSON Merge Patch (https://tools.ietf.org/html/rfc7396). As the implementation is trivial and we already support JSON Patch, I think this could be a nice extension to the library.
This commit is contained in:
Niels Lohmann
@ -28,6 +28,7 @@ SOURCES = src/unit.cpp \
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src/unit-iterator_wrapper.cpp \
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src/unit-iterators1.cpp \
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src/unit-iterators2.cpp \
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src/unit-merge_patch.cpp \
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src/unit-json_patch.cpp \
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src/unit-json_pointer.cpp \
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src/unit-meta.cpp \
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261
test/src/unit-merge_patch.cpp
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261
test/src/unit-merge_patch.cpp
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@ -0,0 +1,261 @@
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/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++ (test suite)
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| | |__ | | | | | | version 2.1.1
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|_____|_____|_____|_|___| https://github.com/nlohmann/json
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Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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Copyright (c) 2013-2017 Niels Lohmann <http://nlohmann.me>.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "catch.hpp"
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#include "json.hpp"
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using nlohmann::json;
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TEST_CASE("JSON Merge Patch")
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{
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SECTION("examples from RFC 7396")
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{
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SECTION("Section 1")
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{
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json document = R"({
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"a": "b",
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"c": {
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"d": "e",
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"f": "g"
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}
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})"_json;
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json patch = R"({
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"a": "z",
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"c": {
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"f": null
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}
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})"_json;
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json expected = R"({
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"a": "z",
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"c": {
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"d": "e"
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}
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})"_json;
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document.merge_patch(patch);
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CHECK(document == expected);
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}
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SECTION("Section 3")
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{
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json document = R"({
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"title": "Goodbye!",
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"author": {
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"givenName": "John",
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"familyName": "Doe"
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},
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"tags": [
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"example",
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"sample"
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],
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"content": "This will be unchanged"
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})"_json;
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json patch = R"({
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"title": "Hello!",
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"phoneNumber": "+01-123-456-7890",
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"author": {
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"familyName": null
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},
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"tags": [
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"example"
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]
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})"_json;
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json expected = R"({
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"title": "Hello!",
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"author": {
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"givenName": "John"
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},
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"tags": [
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"example"
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],
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"content": "This will be unchanged",
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"phoneNumber": "+01-123-456-7890"
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})"_json;
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document.merge_patch(patch);
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CHECK(document == expected);
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}
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SECTION("Appendix A")
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{
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SECTION("Example 1")
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{
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json original = R"({"a":"b"})"_json;
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json patch = R"({"a":"c"})"_json;
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json result = R"({"a":"c"})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 2")
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{
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json original = R"({"a":"b"})"_json;
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json patch = R"({"b":"c"})"_json;
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json result = R"({"a":"b", "b":"c"})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 3")
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{
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json original = R"({"a":"b"})"_json;
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json patch = R"({"a":null})"_json;
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json result = R"({})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 4")
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{
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json original = R"({"a":"b","b":"c"})"_json;
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json patch = R"({"a":null})"_json;
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json result = R"({"b":"c"})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 5")
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{
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json original = R"({"a":["b"]})"_json;
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json patch = R"({"a":"c"})"_json;
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json result = R"({"a":"c"})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 6")
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{
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json original = R"({"a":"c"})"_json;
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json patch = R"({"a":["b"]})"_json;
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json result = R"({"a":["b"]})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 7")
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{
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json original = R"({"a":{"b": "c"}})"_json;
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json patch = R"({"a":{"b":"d","c":null}})"_json;
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json result = R"({"a": {"b": "d"}})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 8")
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{
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json original = R"({"a":[{"b":"c"}]})"_json;
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json patch = R"({"a":[1]})"_json;
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json result = R"({"a":[1]})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 9")
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{
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json original = R"(["a","b"])"_json;
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json patch = R"(["c","d"])"_json;
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json result = R"(["c","d"])"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 10")
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{
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json original = R"({"a":"b"})"_json;
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json patch = R"(["c"])"_json;
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json result = R"(["c"])"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 11")
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{
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json original = R"({"a":"foo"})"_json;
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json patch = R"(null)"_json;
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json result = R"(null)"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 12")
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{
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json original = R"({"a":"foo"})"_json;
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json patch = R"("bar")"_json;
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json result = R"("bar")"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 13")
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{
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json original = R"({"e":null})"_json;
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json patch = R"({"a":1})"_json;
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json result = R"({"e":null,"a":1})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 14")
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{
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json original = R"([1,2])"_json;
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json patch = R"({"a":"b","c":null})"_json;
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json result = R"({"a":"b"})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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SECTION("Example 15")
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{
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json original = R"({})"_json;
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json patch = R"({"a":{"bb":{"ccc":null}}})"_json;
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json result = R"({"a":{"bb":{}}})"_json;
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original.merge_patch(patch);
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CHECK(original == result);
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}
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}
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}
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}
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