| // Protocol Buffers - Google's data interchange format |
| // Copyright 2008 Google Inc. All rights reserved. |
| // https://developers.google.com/protocol-buffers/ |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package com.google.protobuf; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import protobuf_unittest.UnittestProto; |
| import proto3_unittest.UnittestProto3; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for discard or preserve unknown fields. */ |
| @RunWith(JUnit4.class) |
| public class DiscardUnknownFieldsTest { |
| @Test |
| public void testProto2() throws Exception { |
| testProto2Message( |
| UnittestProto.TestEmptyMessage.getDefaultInstance()); |
| testProto2Message( |
| UnittestProto.TestEmptyMessageWithExtensions.getDefaultInstance()); |
| testProto2Message( |
| DynamicMessage.getDefaultInstance(UnittestProto.TestEmptyMessage.getDescriptor())); |
| testProto2Message( |
| DynamicMessage.getDefaultInstance( |
| UnittestProto.TestEmptyMessageWithExtensions.getDescriptor())); |
| } |
| |
| @Test |
| public void testProto3() throws Exception { |
| testProto3Message(UnittestProto3.TestEmptyMessage.getDefaultInstance()); |
| testProto3Message( |
| DynamicMessage.getDefaultInstance(UnittestProto3.TestEmptyMessage.getDescriptor())); |
| } |
| |
| private static void testProto2Message(Message message) throws Exception { |
| assertUnknownFieldsDefaultPreserved(message); |
| assertUnknownFieldsExplicitlyDiscarded(message); |
| assertReuseCodedInputStreamPreserve(message); |
| assertUnknownFieldsInUnknownFieldSetArePreserve(message); |
| } |
| |
| private static void testProto3Message(Message message) throws Exception { |
| CodedInputStream.setProto3KeepUnknownsByDefaultForTest(); |
| assertUnknownFieldsDefaultPreserved(message); |
| assertUnknownFieldsExplicitlyDiscarded(message); |
| assertReuseCodedInputStreamPreserve(message); |
| assertUnknownFieldsInUnknownFieldSetArePreserve(message); |
| CodedInputStream.setProto3DiscardUnknownsByDefaultForTest(); |
| assertUnknownFieldsDefaultDiscarded(message); |
| assertUnknownFieldsExplicitlyDiscarded(message); |
| assertUnknownFieldsInUnknownFieldSetAreDiscarded(message); |
| } |
| |
| private static void assertReuseCodedInputStreamPreserve(Message message) throws Exception { |
| final int messageSize = payload.size(); |
| byte[] copied = new byte[messageSize * 2]; |
| payload.copyTo(copied, 0); |
| payload.copyTo(copied, messageSize); |
| CodedInputStream input = CodedInputStream.newInstance(copied); |
| { |
| // Use DiscardUnknownFieldsParser to parse the first payload. |
| int oldLimit = input.pushLimit(messageSize); |
| Message parsed = DiscardUnknownFieldsParser.wrap(message.getParserForType()).parseFrom(input); |
| assertEquals(message.getClass().getName(), 0, parsed.getSerializedSize()); |
| input.popLimit(oldLimit); |
| } |
| { |
| // Use the normal parser to parse the remaining payload should have unknown fields preserved. |
| Message parsed = message.getParserForType().parseFrom(input); |
| assertEquals(message.getClass().getName(), payload, parsed.toByteString()); |
| } |
| } |
| |
| /** |
| * {@link Message.Builder#setUnknownFields(UnknownFieldSet)} and {@link |
| * Message.Builder#mergeUnknownFields(UnknownFieldSet)} should preserve the unknown fields. |
| */ |
| private static void assertUnknownFieldsInUnknownFieldSetArePreserve(Message message) |
| throws Exception { |
| UnknownFieldSet unknownFields = UnknownFieldSet.newBuilder().mergeFrom(payload).build(); |
| Message built = message.newBuilderForType().setUnknownFields(unknownFields).build(); |
| assertEquals(message.getClass().getName(), payload, built.toByteString()); |
| |
| } |
| /** |
| * {@link Message.Builder#setUnknownFields(UnknownFieldSet)} and {@link |
| * Message.Builder#mergeUnknownFields(UnknownFieldSet)} should discard the unknown fields. |
| */ |
| private static void assertUnknownFieldsInUnknownFieldSetAreDiscarded(Message message) |
| throws Exception { |
| UnknownFieldSet unknownFields = UnknownFieldSet.newBuilder().mergeFrom(payload).build(); |
| Message built = message.newBuilderForType().setUnknownFields(unknownFields).build(); |
| assertEquals(message.getClass().getName(), 0, built.getSerializedSize()); |
| } |
| |
| private static void assertUnknownFieldsDefaultPreserved(MessageLite message) throws Exception { |
| { |
| MessageLite parsed = message.getParserForType().parseFrom(payload); |
| assertEquals(message.getClass().getName(), payload, parsed.toByteString()); |
| } |
| |
| { |
| MessageLite parsed = message.newBuilderForType().mergeFrom(payload).build(); |
| assertEquals(message.getClass().getName(), payload, parsed.toByteString()); |
| } |
| } |
| |
| private static void assertUnknownFieldsDefaultDiscarded(MessageLite message) throws Exception { |
| { |
| MessageLite parsed = message.getParserForType().parseFrom(payload); |
| assertEquals(message.getClass().getName(), 0, parsed.getSerializedSize()); |
| } |
| |
| { |
| MessageLite parsed = message.newBuilderForType().mergeFrom(payload).build(); |
| assertEquals(message.getClass().getName(), 0, parsed.getSerializedSize()); |
| } |
| } |
| |
| private static void assertUnknownFieldsExplicitlyDiscarded(Message message) throws Exception { |
| Message parsed = |
| DiscardUnknownFieldsParser.wrap(message.getParserForType()).parseFrom(payload); |
| assertEquals(message.getClass().getName(), 0, parsed.getSerializedSize()); |
| } |
| |
| private static final ByteString payload = |
| TestUtilLite.getAllLiteSetBuilder().build().toByteString(); |
| } |