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- /*
- * Copyright 2018-present Facebook, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #include <folly/test/JsonTestUtil.h>
- #include <algorithm>
- #include <cmath>
- #include <folly/Conv.h>
- #include <folly/json.h>
- #include <folly/lang/Assume.h>
- namespace folly {
- bool compareJson(StringPiece json1, StringPiece json2) {
- auto obj1 = parseJson(json1);
- auto obj2 = parseJson(json2);
- return obj1 == obj2;
- }
- namespace {
- bool isClose(double x, double y, double tolerance) {
- return std::abs(x - y) <= tolerance;
- }
- } // namespace
- bool compareDynamicWithTolerance(
- const dynamic& obj1,
- const dynamic& obj2,
- double tolerance) {
- if (obj1.type() != obj2.type()) {
- if (obj1.isNumber() && obj2.isNumber()) {
- const auto& integ = obj1.isInt() ? obj1 : obj2;
- const auto& doubl = obj1.isInt() ? obj2 : obj1;
- // Use to<double> to fail on precision loss for very large
- // integers (in which case the comparison does not make sense).
- return isClose(to<double>(integ.asInt()), doubl.asDouble(), tolerance);
- }
- return false;
- }
- switch (obj1.type()) {
- case dynamic::Type::NULLT:
- return true;
- case dynamic::Type::ARRAY:
- if (obj1.size() != obj2.size()) {
- return false;
- }
- for (auto i1 = obj1.begin(), i2 = obj2.begin(); i1 != obj1.end();
- ++i1, ++i2) {
- if (!compareDynamicWithTolerance(*i1, *i2, tolerance)) {
- return false;
- }
- }
- return true;
- case dynamic::Type::BOOL:
- return obj1.asBool() == obj2.asBool();
- case dynamic::Type::DOUBLE:
- return isClose(obj1.asDouble(), obj2.asDouble(), tolerance);
- case dynamic::Type::INT64:
- return obj1.asInt() == obj2.asInt();
- case dynamic::Type::OBJECT:
- if (obj1.size() != obj2.size()) {
- return false;
- }
- return std::all_of(
- obj1.items().begin(), obj1.items().end(), [&](const auto& item) {
- const auto& value1 = item.second;
- const auto value2 = obj2.get_ptr(item.first);
- return value2 &&
- compareDynamicWithTolerance(value1, *value2, tolerance);
- });
- case dynamic::Type::STRING:
- return obj1.asString() == obj2.asString();
- }
- assume_unreachable();
- }
- bool compareJsonWithTolerance(
- StringPiece json1,
- StringPiece json2,
- double tolerance) {
- auto obj1 = parseJson(json1);
- auto obj2 = parseJson(json2);
- return compareDynamicWithTolerance(obj1, obj2, tolerance);
- }
- } // namespace folly
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