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// Copyright 2021 Google LLC
//
// 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.
//
////////////////////////////////////////////////////////////////////////////////
import com.code_intelligence.jazzer.api.FuzzedDataProvider;
import com.google.json.JsonSanitizer;
public class IdempotenceFuzzer {
public static void fuzzerTestOneInput(FuzzedDataProvider data) {
String input = data.consumeRemainingAsString();
String output;
try {
output = JsonSanitizer.sanitize(input, 10);
} catch (ArrayIndexOutOfBoundsException e) {
// ArrayIndexOutOfBoundsException is expected if nesting depth is
// exceeded.
return;
}
// Ensure that sanitizing twice does not give different output
// (idempotence). Since failure to be idempotent is not a security issue in
// itself, fail with a regular AssertionError.
assert JsonSanitizer.sanitize(output).equals(output) : "Not idempotent";
}
}