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unit-json_patch.cpp
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1336 lines (1150 loc) · 48 KB
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// __ _____ _____ _____
// __| | __| | | | JSON for Modern C++ (supporting code)
// | | |__ | | | | | | version 3.12.0
// |_____|_____|_____|_|___| https://github.com/nlohmann/json
//
// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
// SPDX-License-Identifier: MIT
#include "doctest_compatibility.h"
#include <nlohmann/json.hpp>
using nlohmann::json;
#ifdef JSON_TEST_NO_GLOBAL_UDLS
using namespace nlohmann::literals; // NOLINT(google-build-using-namespace)
#endif
#include <fstream>
#include "make_test_data_available.hpp"
TEST_CASE("JSON patch")
{
SECTION("examples from RFC 6902")
{
SECTION("4. Operations")
{
// the ordering of members in JSON objects is not significant:
const json op1 = R"({ "op": "add", "path": "/a/b/c", "value": "foo" })"_json;
const json op2 = R"({ "path": "/a/b/c", "op": "add", "value": "foo" })"_json;
const json op3 = R"({ "value": "foo", "path": "/a/b/c", "op": "add" })"_json;
// check if the operation objects are equivalent
CHECK(op1 == op2);
CHECK(op1 == op3);
}
SECTION("4.1 add")
{
json const patch1 = R"([{ "op": "add", "path": "/a/b", "value": [ "foo", "bar" ] }])"_json;
// However, the object itself or an array containing it does need
// to exist, and it remains an error for that not to be the case.
// For example, an "add" with a target location of "/a/b" starting
// with this document
json const doc1 = R"({ "a": { "foo": 1 } })"_json;
// is not an error, because "a" exists, and "b" will be added to
// its value.
CHECK_NOTHROW(doc1.patch(patch1));
auto doc1_ans = R"(
{
"a": {
"foo": 1,
"b": [ "foo", "bar" ]
}
}
)"_json;
CHECK(doc1.patch(patch1) == doc1_ans);
// It is an error in this document:
json const doc2 = R"({ "q": { "bar": 2 } })"_json;
// because "a" does not exist.
#if JSON_DIAGNOSTIC_POSITIONS
CHECK_THROWS_WITH_AS(doc2.patch(patch1), "[json.exception.out_of_range.403] (bytes 0-21) key 'a' not found", json::out_of_range&);
#else
CHECK_THROWS_WITH_AS(doc2.patch(patch1), "[json.exception.out_of_range.403] key 'a' not found", json::out_of_range&);
#endif
json const doc3 = R"({ "a": {} })"_json;
json const patch2 = R"([{ "op": "add", "path": "/a/b/c", "value": 1 }])"_json;
// should cause an error because "b" does not exist in doc3
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(doc3.patch(patch2), "[json.exception.out_of_range.403] (/a) key 'b' not found", json::out_of_range&);
#elif JSON_DIAGNOSTIC_POSITIONS
CHECK_THROWS_WITH_AS(doc3.patch(patch2), "[json.exception.out_of_range.403] (bytes 7-9) key 'b' not found", json::out_of_range&);
#else
CHECK_THROWS_WITH_AS(doc3.patch(patch2), "[json.exception.out_of_range.403] key 'b' not found", json::out_of_range&);
#endif
}
SECTION("4.2 remove")
{
// If removing an element from an array, any elements above the
// specified index are shifted one position to the left.
json const doc = {1, 2, 3, 4};
json const patch = {{{"op", "remove"}, {"path", "/1"}}};
CHECK(doc.patch(patch) == json({1, 3, 4}));
}
SECTION("A.1. Adding an Object Member")
{
// An example target JSON document:
json const doc = R"(
{ "foo": "bar"}
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "/baz", "value": "qux" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{
"baz": "qux",
"foo": "bar"
}
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.2. Adding an Array Element")
{
// An example target JSON document:
json const doc = R"(
{ "foo": [ "bar", "baz" ] }
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "/foo/1", "value": "qux" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{ "foo": [ "bar", "qux", "baz" ] }
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.3. Removing an Object Member")
{
// An example target JSON document:
json const doc = R"(
{
"baz": "qux",
"foo": "bar"
}
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "remove", "path": "/baz" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{ "foo": "bar" }
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.4. Removing an Array Element")
{
// An example target JSON document:
json const doc = R"(
{ "foo": [ "bar", "qux", "baz" ] }
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "remove", "path": "/foo/1" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{ "foo": [ "bar", "baz" ] }
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.5. Replacing a Value")
{
// An example target JSON document:
json const doc = R"(
{
"baz": "qux",
"foo": "bar"
}
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "replace", "path": "/baz", "value": "boo" }
]
)"_json;
json expected = R"(
{
"baz": "boo",
"foo": "bar"
}
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.6. Moving a Value")
{
// An example target JSON document:
json const doc = R"(
{
"foo": {
"bar": "baz",
"waldo": "fred"
},
"qux": {
"corge": "grault"
}
}
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "move", "from": "/foo/waldo", "path": "/qux/thud" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{
"foo": {
"bar": "baz"
},
"qux": {
"corge": "grault",
"thud": "fred"
}
}
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.7. Moving a Value")
{
// An example target JSON document:
json const doc = R"(
{ "foo": [ "all", "grass", "cows", "eat" ] }
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "move", "from": "/foo/1", "path": "/foo/3" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{ "foo": [ "all", "cows", "eat", "grass" ] }
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.8. Testing a Value: Success")
{
// An example target JSON document:
json doc = R"(
{
"baz": "qux",
"foo": [ "a", 2, "c" ]
}
)"_json;
// A JSON Patch document that will result in successful evaluation:
json const patch = R"(
[
{ "op": "test", "path": "/baz", "value": "qux" },
{ "op": "test", "path": "/foo/1", "value": 2 }
]
)"_json;
// check if evaluation does not throw
CHECK_NOTHROW(doc.patch(patch));
// check if patched document is unchanged
CHECK(doc.patch(patch) == doc);
}
SECTION("A.9. Testing a Value: Error")
{
// An example target JSON document:
json const doc = R"(
{ "baz": "qux" }
)"_json;
// A JSON Patch document that will result in an error condition:
json patch = R"(
[
{ "op": "test", "path": "/baz", "value": "bar" }
]
)"_json;
// check that evaluation throws
CHECK_THROWS_AS(doc.patch(patch), json::other_error&);
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_STD_STR(doc.patch(patch), "[json.exception.other_error.501] (/0) unsuccessful: " + patch[0].dump());
#elif JSON_DIAGNOSTIC_POSITIONS
CHECK_THROWS_WITH_STD_STR(doc.patch(patch), "[json.exception.other_error.501] (bytes 47-95) unsuccessful: " + patch[0].dump());
#else
CHECK_THROWS_WITH_STD_STR(doc.patch(patch), "[json.exception.other_error.501] unsuccessful: " + patch[0].dump());
#endif
}
SECTION("A.10. Adding a Nested Member Object")
{
// An example target JSON document:
json const doc = R"(
{ "foo": "bar" }
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "/child", "value": { "grandchild": { } } }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{
"foo": "bar",
"child": {
"grandchild": {
}
}
}
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.11. Ignoring Unrecognized Elements")
{
// An example target JSON document:
json const doc = R"(
{ "foo": "bar" }
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "/baz", "value": "qux", "xyz": 123 }
]
)"_json;
json expected = R"(
{
"foo": "bar",
"baz": "qux"
}
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.12. Adding to a Nonexistent Target")
{
// An example target JSON document:
json const doc = R"(
{ "foo": "bar" }
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "/baz/bat", "value": "qux" }
]
)"_json;
// This JSON Patch document, applied to the target JSON document
// above, would result in an error (therefore, it would not be
// applied), because the "add" operation's target location that
// references neither the root of the document, nor a member of
// an existing object, nor a member of an existing array.
#if JSON_DIAGNOSTIC_POSITIONS
CHECK_THROWS_WITH_AS(doc.patch(patch), "[json.exception.out_of_range.403] (bytes 21-37) key 'baz' not found", json::out_of_range&);
#else
CHECK_THROWS_WITH_AS(doc.patch(patch), "[json.exception.out_of_range.403] key 'baz' not found", json::out_of_range&);
#endif
}
// A.13. Invalid JSON Patch Document
// not applicable
SECTION("A.14. Escape Ordering")
{
// An example target JSON document:
json const doc = R"(
{
"/": 9,
"~1": 10
}
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{"op": "test", "path": "/~01", "value": 10}
]
)"_json;
json expected = R"(
{
"/": 9,
"~1": 10
}
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("A.15. Comparing Strings and Numbers")
{
// An example target JSON document:
json const doc = R"(
{
"/": 9,
"~1": 10
}
)"_json;
// A JSON Patch document that will result in an error condition:
json patch = R"(
[
{"op": "test", "path": "/~01", "value": "10"}
]
)"_json;
// check that evaluation throws
CHECK_THROWS_AS(doc.patch(patch), json::other_error&);
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_STD_STR(doc.patch(patch), "[json.exception.other_error.501] (/0) unsuccessful: " + patch[0].dump());
#elif JSON_DIAGNOSTIC_POSITIONS
CHECK_THROWS_WITH_STD_STR(doc.patch(patch), "[json.exception.other_error.501] (bytes 47-92) unsuccessful: " + patch[0].dump());
#else
CHECK_THROWS_WITH_STD_STR(doc.patch(patch), "[json.exception.other_error.501] unsuccessful: " + patch[0].dump());
#endif
}
SECTION("A.16. Adding an Array Value")
{
// An example target JSON document:
json const doc = R"(
{ "foo": ["bar"] }
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "/foo/-", "value": ["abc", "def"] }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{ "foo": ["bar", ["abc", "def"]] }
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
}
SECTION("own examples")
{
SECTION("add")
{
SECTION("add to the root element")
{
// If the path is the root of the target document - the
// specified value becomes the entire content of the target
// document.
// An example target JSON document:
json const doc = 17;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "", "value": [1,2,3] }
]
)"_json;
// The resulting JSON document:
json expected = {1, 2, 3};
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("add to end of the array")
{
// The specified index MUST NOT be greater than the number of
// elements in the array. The example below uses and index of
// exactly the number of elements in the array which is legal.
// An example target JSON document:
json const doc = {0, 1, 2};
// A JSON Patch document:
json const patch = R"(
[
{ "op": "add", "path": "/3", "value": 3 }
]
)"_json;
// The resulting JSON document:
json expected = {0, 1, 2, 3};
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
}
SECTION("copy")
{
// An example target JSON document:
json const doc = R"(
{
"foo": {
"bar": "baz",
"waldo": "fred"
},
"qux": {
"corge": "grault"
}
}
)"_json;
// A JSON Patch document:
json const patch = R"(
[
{ "op": "copy", "from": "/foo/waldo", "path": "/qux/thud" }
]
)"_json;
// The resulting JSON document:
json expected = R"(
{
"foo": {
"bar": "baz",
"waldo": "fred"
},
"qux": {
"corge": "grault",
"thud": "fred"
}
}
)"_json;
// check if patched value is as expected
CHECK(doc.patch(patch) == expected);
// check roundtrip
CHECK(doc.patch(json::diff(doc, expected)) == expected);
}
SECTION("replace")
{
json const j = "string";
json const patch = {{{"op", "replace"}, {"path", ""}, {"value", 1}}};
CHECK(j.patch(patch) == json(1));
}
SECTION("documentation GIF")
{
{
// a JSON patch
json const p1 = R"(
[{"op": "add", "path": "/GB", "value": "London"}]
)"_json;
// a JSON value
json const source = R"(
{"D": "Berlin", "F": "Paris"}
)"_json;
// apply the patch
const json target = source.patch(p1);
// target = { "D": "Berlin", "F": "Paris", "GB": "London" }
CHECK(target == R"({ "D": "Berlin", "F": "Paris", "GB": "London" })"_json);
// create a diff from two JSONs
const json p2 = json::diff(target, source); // NOLINT(readability-suspicious-call-argument)
// p2 = [{"op": "delete", "path": "/GB"}]
CHECK(p2 == R"([{"op":"remove","path":"/GB"}])"_json);
}
{
// a JSON value
json j = {"good", "bad", "ugly"};
// a JSON pointer
auto ptr = json::json_pointer("/2");
// use to access elements
j[ptr] = {{"it", "cattivo"}};
CHECK(j == R"(["good","bad",{"it":"cattivo"}])"_json);
// use user-defined string literal
j["/2/en"_json_pointer] = "ugly";
CHECK(j == R"(["good","bad",{"en":"ugly","it":"cattivo"}])"_json);
const json flat = j.flatten();
CHECK(flat == R"({"/0":"good","/1":"bad","/2/en":"ugly","/2/it":"cattivo"})"_json);
}
}
}
SECTION("errors")
{
SECTION("unknown operation")
{
SECTION("not an array")
{
json const j;
json const patch = {{"op", "add"}, {"path", ""}, {"value", 1}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.104] parse error: JSON patch must be an array of objects", json::parse_error&);
}
SECTION("not an array of objects")
{
json const j;
json const patch = {"op", "add", "path", "", "value", 1};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.104] parse error: (/0) JSON patch must be an array of objects", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.104] parse error: JSON patch must be an array of objects", json::parse_error&);
#endif
}
SECTION("missing 'op'")
{
json const j;
json const patch = {{{"foo", "bar"}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation must have member 'op'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation must have member 'op'", json::parse_error&);
#endif
}
SECTION("non-string 'op'")
{
json const j;
json const patch = {{{"op", 1}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation must have string member 'op'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation must have string member 'op'", json::parse_error&);
#endif
}
SECTION("invalid operation")
{
json const j;
json const patch = {{{"op", "foo"}, {"path", ""}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation value 'foo' is invalid", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation value 'foo' is invalid", json::parse_error&);
#endif
}
}
SECTION("add")
{
SECTION("missing 'path'")
{
json const j;
json const patch = {{{"op", "add"}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'add' must have member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'add' must have member 'path'", json::parse_error&);
#endif
}
SECTION("non-string 'path'")
{
json const j;
json const patch = {{{"op", "add"}, {"path", 1}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'add' must have string member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'add' must have string member 'path'", json::parse_error&);
#endif
}
SECTION("missing 'value'")
{
json const j;
json const patch = {{{"op", "add"}, {"path", ""}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'add' must have member 'value'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'add' must have member 'value'", json::parse_error&);
#endif
}
SECTION("invalid array index")
{
json const j = {1, 2};
json const patch = {{{"op", "add"}, {"path", "/4"}, {"value", 4}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.401] array index 4 is out of range", json::out_of_range&);
}
}
SECTION("remove")
{
SECTION("missing 'path'")
{
json const j;
json const patch = {{{"op", "remove"}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'remove' must have member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'remove' must have member 'path'", json::parse_error&);
#endif
}
SECTION("non-string 'path'")
{
json const j;
json const patch = {{{"op", "remove"}, {"path", 1}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'remove' must have string member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'remove' must have string member 'path'", json::parse_error&);
#endif
}
SECTION("nonexisting target location (array)")
{
json const j = {1, 2, 3};
json const patch = {{{"op", "remove"}, {"path", "/17"}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.401] array index 17 is out of range", json::out_of_range&);
}
SECTION("nonexisting target location (object)")
{
json const j = {{"foo", 1}, {"bar", 2}};
json const patch = {{{"op", "remove"}, {"path", "/baz"}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.403] key 'baz' not found", json::out_of_range&);
}
SECTION("root element as target location")
{
json const j = "string";
json const patch = {{{"op", "remove"}, {"path", ""}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.405] JSON pointer has no parent", json::out_of_range&);
}
}
SECTION("replace")
{
SECTION("missing 'path'")
{
json const j;
json const patch = {{{"op", "replace"}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'replace' must have member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'replace' must have member 'path'", json::parse_error&);
#endif
}
SECTION("non-string 'path'")
{
json const j;
json const patch = {{{"op", "replace"}, {"path", 1}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'replace' must have string member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'replace' must have string member 'path'", json::parse_error&);
#endif
}
SECTION("missing 'value'")
{
json const j;
json const patch = {{{"op", "replace"}, {"path", ""}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'replace' must have member 'value'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'replace' must have member 'value'", json::parse_error&);
#endif
}
SECTION("nonexisting target location (array)")
{
json const j = {1, 2, 3};
json const patch = {{{"op", "replace"}, {"path", "/17"}, {"value", 19}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.401] array index 17 is out of range", json::out_of_range&);
}
SECTION("nonexisting target location (object)")
{
json const j = {{"foo", 1}, {"bar", 2}};
json const patch = {{{"op", "replace"}, {"path", "/baz"}, {"value", 3}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.403] key 'baz' not found", json::out_of_range&);
}
}
SECTION("move")
{
SECTION("missing 'path'")
{
json const j;
json const patch = {{{"op", "move"}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'move' must have member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'move' must have member 'path'", json::parse_error&);
#endif
}
SECTION("non-string 'path'")
{
json const j;
json const patch = {{{"op", "move"}, {"path", 1}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'move' must have string member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'move' must have string member 'path'", json::parse_error&);
#endif
}
SECTION("missing 'from'")
{
json const j;
json const patch = {{{"op", "move"}, {"path", ""}}};
CHECK_THROWS_AS(j.patch(patch), json::parse_error&);
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'move' must have member 'from'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'move' must have member 'from'", json::parse_error&);
#endif
}
SECTION("non-string 'from'")
{
json const j;
json const patch = {{{"op", "move"}, {"path", ""}, {"from", 1}}};
CHECK_THROWS_AS(j.patch(patch), json::parse_error&);
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'move' must have string member 'from'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'move' must have string member 'from'", json::parse_error&);
#endif
}
SECTION("nonexisting from location (array)")
{
json const j = {1, 2, 3};
json const patch = {{{"op", "move"}, {"path", "/0"}, {"from", "/5"}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.401] array index 5 is out of range", json::out_of_range&);
}
SECTION("nonexisting from location (object)")
{
json const j = {{"foo", 1}, {"bar", 2}};
json const patch = {{{"op", "move"}, {"path", "/baz"}, {"from", "/baz"}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.403] key 'baz' not found", json::out_of_range&);
}
}
SECTION("copy")
{
SECTION("missing 'path'")
{
json const j;
json const patch = {{{"op", "copy"}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'copy' must have member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'copy' must have member 'path'", json::parse_error&);
#endif
}
SECTION("non-string 'path'")
{
json const j;
json const patch = {{{"op", "copy"}, {"path", 1}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'copy' must have string member 'path'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'copy' must have string member 'path'", json::parse_error&);
#endif
}
SECTION("missing 'from'")
{
json const j;
json const patch = {{{"op", "copy"}, {"path", ""}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'copy' must have member 'from'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'copy' must have member 'from'", json::parse_error&);
#endif
}
SECTION("non-string 'from'")
{
json const j;
json const patch = {{{"op", "copy"}, {"path", ""}, {"from", 1}}};
#if JSON_DIAGNOSTICS
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: (/0) operation 'copy' must have string member 'from'", json::parse_error&);
#else
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.parse_error.105] parse error: operation 'copy' must have string member 'from'", json::parse_error&);
#endif
}
SECTION("nonexisting from location (array)")
{
json const j = {1, 2, 3};
json const patch = {{{"op", "copy"}, {"path", "/0"}, {"from", "/5"}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.401] array index 5 is out of range", json::out_of_range&);
}
SECTION("nonexisting from location (object)")
{
json const j = {{"foo", 1}, {"bar", 2}};
json const patch = {{{"op", "copy"}, {"path", "/fob"}, {"from", "/baz"}}};
CHECK_THROWS_WITH_AS(j.patch(patch), "[json.exception.out_of_range.403] key 'baz' not found", json::out_of_range&);
}
}
SECTION("test")
{
SECTION("missing 'path'")
{
json const j;
json const patch = {{{"op", "test"}}};
#if JSON_DIAGNOSTICS