1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // https://developers.google.com/protocol-buffers/ 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions are 7 // met: 8 // 9 // * Redistributions of source code must retain the above copyright 10 // notice, this list of conditions and the following disclaimer. 11 // * Redistributions in binary form must reproduce the above 12 // copyright notice, this list of conditions and the following disclaimer 13 // in the documentation and/or other materials provided with the 14 // distribution. 15 // * Neither the name of Google Inc. nor the names of its 16 // contributors may be used to endorse or promote products derived from 17 // this software without specific prior written permission. 18 // 19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31 package com.google.protobuf; 32 33 import static org.junit.Assert.assertEquals; 34 35 import protobuf_unittest.UnittestProto.TestPackedTypes; 36 import proto3_unittest.UnittestProto3; 37 import protobuf_unittest.TestCachedFieldSizeMessage; 38 import org.junit.Test; 39 import org.junit.runner.RunWith; 40 import org.junit.runners.JUnit4; 41 42 @RunWith(JUnit4.class) 43 public final class CachedFieldSizeTest { 44 // Regression test for b/74087933 45 @Test testCachedFieldSize()46 public void testCachedFieldSize() throws Exception { 47 TestCachedFieldSizeMessage.Builder builder = TestCachedFieldSizeMessage.newBuilder(); 48 builder.setProto2Child(TestUtil.getPackedSet()); 49 builder.setProto3Child( 50 UnittestProto3.TestPackedTypes.parseFrom(TestUtil.getPackedSet().toByteArray())); 51 TestCachedFieldSizeMessage message = builder.build(); 52 53 // Serialize once to cache all field sizes. This will use the experimental runtime because 54 // the proto has optimize_for = CODE_SIZE. 55 message.toByteArray(); 56 // Serialize individual submessages. This will use the generated implementation. If the 57 // experimental runtime hasn't set the correct cached size, this will throw an exception. 58 byte[] data2 = message.getProto2Child().toByteArray(); 59 byte[] data3 = message.getProto3Child().toByteArray(); 60 61 // Make sure the serialized data is correct. 62 assertEquals(message.getProto2Child(), TestPackedTypes.parseFrom(data2)); 63 assertEquals(message.getProto3Child(), UnittestProto3.TestPackedTypes.parseFrom(data3)); 64 } 65 } 66