| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE |
| * file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file |
| * to You 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. |
| */ |
| package org.apache.tuweni.eth.reference; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| |
| import org.apache.tuweni.bytes.Bytes; |
| import org.apache.tuweni.io.Resources; |
| import org.apache.tuweni.rlp.RLP; |
| import org.apache.tuweni.rlp.RLPException; |
| import org.apache.tuweni.rlp.RLPReader; |
| import org.apache.tuweni.rlp.RLPWriter; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.UncheckedIOException; |
| import java.math.BigInteger; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.Stream; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.google.errorprone.annotations.MustBeClosed; |
| import org.junit.jupiter.params.ParameterizedTest; |
| import org.junit.jupiter.params.provider.Arguments; |
| import org.junit.jupiter.params.provider.MethodSource; |
| |
| class RLPReferenceTestSuite { |
| private static void writePayload(RLPWriter writer, Object in) { |
| if (in instanceof String && ((String) in).startsWith("#")) { |
| writer.writeBigInteger(new BigInteger(((String) in).substring(1))); |
| } else if (in instanceof String) { |
| writer.writeString((String) in); |
| } else if (in instanceof BigInteger) { |
| writer.writeBigInteger((BigInteger) in); |
| } else if (in instanceof Integer) { |
| writer.writeValue(Bytes.minimalBytes((Integer) in)); |
| } else if (in instanceof List) { |
| writer.writeList((listWriter) -> { |
| for (Object elt : (List) in) { |
| writePayload(listWriter, elt); |
| } |
| }); |
| } else { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| private static Object readPayload(RLPReader reader, Object in) { |
| if (in instanceof List) { |
| return reader.readList((listReader, list) -> { |
| for (Object elt : ((List) in)) { |
| list.add(readPayload(listReader, elt)); |
| } |
| }); |
| } else if (in instanceof BigInteger) { |
| return reader.readBigInteger(); |
| } else if (in instanceof String) { |
| return reader.readString(); |
| } else if (in instanceof Integer) { |
| return reader.readInt(); |
| } else { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| @ParameterizedTest(name = "{index}. write {0}") |
| @MethodSource("readRLPTests") |
| void testWriteRLP(String name, Object in, String out) throws IOException { |
| Bytes encoded = RLP.encode((writer) -> writePayload(writer, in)); |
| assertEquals(Bytes.fromHexString(out), encoded, "Input was of type " + in.getClass()); |
| } |
| |
| @ParameterizedTest(name = "{index}. read {0}") |
| @MethodSource("readRLPTests") |
| void testReadRLP(String name, Object in, String out) { |
| if (in instanceof String && ((String) in).startsWith("#")) { |
| in = new BigInteger(((String) in).substring(1)); |
| } |
| Object payload = in; |
| Object decoded = RLP.decode(Bytes.fromHexString(out), (reader) -> readPayload(reader, payload)); |
| assertEquals(in, decoded); |
| } |
| |
| @ParameterizedTest(name = "{index}. invalid {0}") |
| @MethodSource("readInvalidRLPTests") |
| void testReadInvalidRLP(String name, Object in, String out) { |
| assertThrows(RLPException.class, () -> { |
| if ("incorrectLengthInArray".equals(name)) { |
| RLP.decodeToList(Bytes.fromHexString(out), (reader, list) -> { |
| }); |
| } else { |
| RLP.decodeValue(Bytes.fromHexString(out)); |
| } |
| }); |
| } |
| |
| @MustBeClosed |
| private static Stream<Arguments> readRLPTests() throws IOException { |
| return findTests("**/RLPTests/rlptest.json"); |
| } |
| |
| @MustBeClosed |
| private static Stream<Arguments> readInvalidRLPTests() throws IOException { |
| return findTests("**/RLPTests/invalidRLPTest.json"); |
| } |
| |
| @MustBeClosed |
| private static Stream<Arguments> findTests(String glob) throws IOException { |
| return Resources.find(glob).flatMap(url -> { |
| try (InputStream in = url.openConnection().getInputStream()) { |
| return prepareTests(in); |
| } catch (IOException e) { |
| throw new UncheckedIOException(e); |
| } |
| }); |
| } |
| |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| private static Stream<Arguments> prepareTests(InputStream in) throws IOException { |
| ObjectMapper mapper = new ObjectMapper(); |
| Map<String, Map> allTests = mapper.readerFor(Map.class).readValue(in); |
| return allTests.entrySet().stream().map( |
| entry -> Arguments.of(entry.getKey(), entry.getValue().get("in"), entry.getValue().get("out"))); |
| } |
| } |