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Diffstat (limited to 'java/src/test/java/com/google/protobuf/ParserTest.java')
| -rw-r--r-- | java/src/test/java/com/google/protobuf/ParserTest.java | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/java/src/test/java/com/google/protobuf/ParserTest.java b/java/src/test/java/com/google/protobuf/ParserTest.java new file mode 100644 index 0000000..b11d8cb --- /dev/null +++ b/java/src/test/java/com/google/protobuf/ParserTest.java @@ -0,0 +1,381 @@ +// 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 com.google.protobuf.UnittestLite.TestAllTypesLite; +import com.google.protobuf.UnittestLite.TestPackedExtensionsLite; +import com.google.protobuf.UnittestLite.TestParsingMergeLite; +import protobuf_unittest.UnittestOptimizeFor.TestOptimizedForSize; +import protobuf_unittest.UnittestOptimizeFor.TestRequiredOptimizedForSize; +import protobuf_unittest.UnittestOptimizeFor; +import protobuf_unittest.UnittestProto.ForeignMessage; +import protobuf_unittest.UnittestProto.TestAllTypes; +import protobuf_unittest.UnittestProto.TestEmptyMessage; +import protobuf_unittest.UnittestProto.TestParsingMerge; +import protobuf_unittest.UnittestProto.TestRequired; +import protobuf_unittest.UnittestProto; + +import junit.framework.TestCase; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.InputStream; + +/** + * Unit test for {@link Parser}. + * + * @author liujisi@google.com (Pherl Liu) + */ +public class ParserTest extends TestCase { + public void testGeneratedMessageParserSingleton() throws Exception { + for (int i = 0; i < 10; i++) { + assertEquals(TestAllTypes.PARSER, + TestUtil.getAllSet().getParserForType()); + } + } + + private void assertRoundTripEquals(MessageLite message, + ExtensionRegistryLite registry) + throws Exception { + final byte[] data = message.toByteArray(); + final int offset = 20; + final int length = data.length; + final int padding = 30; + Parser<? extends MessageLite> parser = message.getParserForType(); + assertMessageEquals(message, parser.parseFrom(data, registry)); + assertMessageEquals(message, parser.parseFrom( + generatePaddingArray(data, offset, padding), + offset, length, registry)); + assertMessageEquals(message, parser.parseFrom( + message.toByteString(), registry)); + assertMessageEquals(message, parser.parseFrom( + new ByteArrayInputStream(data), registry)); + assertMessageEquals(message, parser.parseFrom( + CodedInputStream.newInstance(data), registry)); + } + + @SuppressWarnings("unchecked") + private void assertRoundTripEquals(MessageLite message) throws Exception { + final byte[] data = message.toByteArray(); + final int offset = 20; + final int length = data.length; + final int padding = 30; + + Parser<MessageLite> parser = + (Parser<MessageLite>) message.getParserForType(); + assertMessageEquals(message, parser.parseFrom(data)); + assertMessageEquals(message, parser.parseFrom( + generatePaddingArray(data, offset, padding), + offset, length)); + assertMessageEquals(message, parser.parseFrom(message.toByteString())); + assertMessageEquals(message, parser.parseFrom( + new ByteArrayInputStream(data))); + assertMessageEquals(message, parser.parseFrom( + CodedInputStream.newInstance(data))); + } + + private void assertMessageEquals( + MessageLite expected, MessageLite actual) + throws Exception { + if (expected instanceof Message) { + assertEquals(expected, actual); + } else { + assertEquals(expected.toByteString(), actual.toByteString()); + } + } + + private byte[] generatePaddingArray(byte[] data, int offset, int padding) { + byte[] result = new byte[offset + data.length + padding]; + System.arraycopy(data, 0, result, offset, data.length); + return result; + } + + public void testNormalMessage() throws Exception { + assertRoundTripEquals(TestUtil.getAllSet()); + } + + + public void testParsePartial() throws Exception { + assertParsePartial(TestRequired.PARSER, + TestRequired.newBuilder().setA(1).buildPartial()); + } + + private <T extends MessageLite> void assertParsePartial( + Parser<T> parser, T partialMessage) throws Exception { + final String errorString = + "Should throw exceptions when the parsed message isn't initialized."; + + // parsePartialFrom should pass. + byte[] data = partialMessage.toByteArray(); + assertEquals(partialMessage, parser.parsePartialFrom(data)); + assertEquals(partialMessage, parser.parsePartialFrom( + partialMessage.toByteString())); + assertEquals(partialMessage, parser.parsePartialFrom( + new ByteArrayInputStream(data))); + assertEquals(partialMessage, parser.parsePartialFrom( + CodedInputStream.newInstance(data))); + + // parseFrom(ByteArray) + try { + parser.parseFrom(partialMessage.toByteArray()); + fail(errorString); + } catch (InvalidProtocolBufferException e) { + // pass. + } + + // parseFrom(ByteString) + try { + parser.parseFrom(partialMessage.toByteString()); + fail(errorString); + } catch (InvalidProtocolBufferException e) { + // pass. + } + + // parseFrom(InputStream) + try { + parser.parseFrom(new ByteArrayInputStream(partialMessage.toByteArray())); + fail(errorString); + } catch (IOException e) { + // pass. + } + + // parseFrom(CodedInputStream) + try { + parser.parseFrom(CodedInputStream.newInstance( + partialMessage.toByteArray())); + fail(errorString); + } catch (IOException e) { + // pass. + } + } + + public void testParseExtensions() throws Exception { + assertRoundTripEquals(TestUtil.getAllExtensionsSet(), + TestUtil.getExtensionRegistry()); + assertRoundTripEquals(TestUtil.getAllLiteExtensionsSet(), + TestUtil.getExtensionRegistryLite()); + } + + public void testParsePacked() throws Exception { + assertRoundTripEquals(TestUtil.getPackedSet()); + assertRoundTripEquals(TestUtil.getPackedExtensionsSet(), + TestUtil.getExtensionRegistry()); + assertRoundTripEquals(TestUtil.getLitePackedExtensionsSet(), + TestUtil.getExtensionRegistryLite()); + } + + public void testParseDelimitedTo() throws Exception { + // Write normal Message. + TestAllTypes normalMessage = TestUtil.getAllSet(); + ByteArrayOutputStream output = new ByteArrayOutputStream(); + normalMessage.writeDelimitedTo(output); + + // Write MessageLite with packed extension fields. + TestPackedExtensionsLite packedMessage = + TestUtil.getLitePackedExtensionsSet(); + packedMessage.writeDelimitedTo(output); + + InputStream input = new ByteArrayInputStream(output.toByteArray()); + assertMessageEquals( + normalMessage, + normalMessage.getParserForType().parseDelimitedFrom(input)); + assertMessageEquals( + packedMessage, + packedMessage.getParserForType().parseDelimitedFrom( + input, TestUtil.getExtensionRegistryLite())); + } + + public void testParseUnknownFields() throws Exception { + // All fields will be treated as unknown fields in emptyMessage. + TestEmptyMessage emptyMessage = TestEmptyMessage.PARSER.parseFrom( + TestUtil.getAllSet().toByteString()); + assertEquals( + TestUtil.getAllSet().toByteString(), + emptyMessage.toByteString()); + } + + + public void testOptimizeForSize() throws Exception { + TestOptimizedForSize.Builder builder = TestOptimizedForSize.newBuilder(); + builder.setI(12).setMsg(ForeignMessage.newBuilder().setC(34).build()); + builder.setExtension(TestOptimizedForSize.testExtension, 56); + builder.setExtension(TestOptimizedForSize.testExtension2, + TestRequiredOptimizedForSize.newBuilder().setX(78).build()); + + TestOptimizedForSize message = builder.build(); + ExtensionRegistry registry = ExtensionRegistry.newInstance(); + UnittestOptimizeFor.registerAllExtensions(registry); + + assertRoundTripEquals(message, registry); + } + + /** Helper method for {@link #testParsingMerge()}.*/ + private void assertMessageMerged(TestAllTypes allTypes) + throws Exception { + assertEquals(3, allTypes.getOptionalInt32()); + assertEquals(2, allTypes.getOptionalInt64()); + assertEquals("hello", allTypes.getOptionalString()); + } + + /** Helper method for {@link #testParsingMergeLite()}.*/ + private void assertMessageMerged(TestAllTypesLite allTypes) + throws Exception { + assertEquals(3, allTypes.getOptionalInt32()); + assertEquals(2, allTypes.getOptionalInt64()); + assertEquals("hello", allTypes.getOptionalString()); + } + + public void testParsingMerge() throws Exception { + // Build messages. + TestAllTypes.Builder builder = TestAllTypes.newBuilder(); + TestAllTypes msg1 = builder.setOptionalInt32(1).build(); + builder.clear(); + TestAllTypes msg2 = builder.setOptionalInt64(2).build(); + builder.clear(); + TestAllTypes msg3 = builder.setOptionalInt32(3) + .setOptionalString("hello").build(); + + // Build groups. + TestParsingMerge.RepeatedFieldsGenerator.Group1 optionalG1 = + TestParsingMerge.RepeatedFieldsGenerator.Group1.newBuilder() + .setField1(msg1).build(); + TestParsingMerge.RepeatedFieldsGenerator.Group1 optionalG2 = + TestParsingMerge.RepeatedFieldsGenerator.Group1.newBuilder() + .setField1(msg2).build(); + TestParsingMerge.RepeatedFieldsGenerator.Group1 optionalG3 = + TestParsingMerge.RepeatedFieldsGenerator.Group1.newBuilder() + .setField1(msg3).build(); + TestParsingMerge.RepeatedFieldsGenerator.Group2 repeatedG1 = + TestParsingMerge.RepeatedFieldsGenerator.Group2.newBuilder() + .setField1(msg1).build(); + TestParsingMerge.RepeatedFieldsGenerator.Group2 repeatedG2 = + TestParsingMerge.RepeatedFieldsGenerator.Group2.newBuilder() + .setField1(msg2).build(); + TestParsingMerge.RepeatedFieldsGenerator.Group2 repeatedG3 = + TestParsingMerge.RepeatedFieldsGenerator.Group2.newBuilder() + .setField1(msg3).build(); + + // Assign and serialize RepeatedFieldsGenerator. + ByteString data = TestParsingMerge.RepeatedFieldsGenerator.newBuilder() + .addField1(msg1).addField1(msg2).addField1(msg3) + .addField2(msg1).addField2(msg2).addField2(msg3) + .addField3(msg1).addField3(msg2).addField3(msg3) + .addGroup1(optionalG1).addGroup1(optionalG2).addGroup1(optionalG3) + .addGroup2(repeatedG1).addGroup2(repeatedG2).addGroup2(repeatedG3) + .addExt1(msg1).addExt1(msg2).addExt1(msg3) + .addExt2(msg1).addExt2(msg2).addExt2(msg3) + .build().toByteString(); + + // Parse TestParsingMerge. + ExtensionRegistry registry = ExtensionRegistry.newInstance(); + UnittestProto.registerAllExtensions(registry); + TestParsingMerge parsingMerge = + TestParsingMerge.PARSER.parseFrom(data, registry); + + // Required and optional fields should be merged. + assertMessageMerged(parsingMerge.getRequiredAllTypes()); + assertMessageMerged(parsingMerge.getOptionalAllTypes()); + assertMessageMerged( + parsingMerge.getOptionalGroup().getOptionalGroupAllTypes()); + assertMessageMerged(parsingMerge.getExtension( + TestParsingMerge.optionalExt)); + + // Repeated fields should not be merged. + assertEquals(3, parsingMerge.getRepeatedAllTypesCount()); + assertEquals(3, parsingMerge.getRepeatedGroupCount()); + assertEquals(3, parsingMerge.getExtensionCount( + TestParsingMerge.repeatedExt)); + } + + public void testParsingMergeLite() throws Exception { + // Build messages. + TestAllTypesLite.Builder builder = + TestAllTypesLite.newBuilder(); + TestAllTypesLite msg1 = builder.setOptionalInt32(1).build(); + builder.clear(); + TestAllTypesLite msg2 = builder.setOptionalInt64(2).build(); + builder.clear(); + TestAllTypesLite msg3 = builder.setOptionalInt32(3) + .setOptionalString("hello").build(); + + // Build groups. + TestParsingMergeLite.RepeatedFieldsGenerator.Group1 optionalG1 = + TestParsingMergeLite.RepeatedFieldsGenerator.Group1.newBuilder() + .setField1(msg1).build(); + TestParsingMergeLite.RepeatedFieldsGenerator.Group1 optionalG2 = + TestParsingMergeLite.RepeatedFieldsGenerator.Group1.newBuilder() + .setField1(msg2).build(); + TestParsingMergeLite.RepeatedFieldsGenerator.Group1 optionalG3 = + TestParsingMergeLite.RepeatedFieldsGenerator.Group1.newBuilder() + .setField1(msg3).build(); + TestParsingMergeLite.RepeatedFieldsGenerator.Group2 repeatedG1 = + TestParsingMergeLite.RepeatedFieldsGenerator.Group2.newBuilder() + .setField1(msg1).build(); + TestParsingMergeLite.RepeatedFieldsGenerator.Group2 repeatedG2 = + TestParsingMergeLite.RepeatedFieldsGenerator.Group2.newBuilder() + .setField1(msg2).build(); + TestParsingMergeLite.RepeatedFieldsGenerator.Group2 repeatedG3 = + TestParsingMergeLite.RepeatedFieldsGenerator.Group2.newBuilder() + .setField1(msg3).build(); + + // Assign and serialize RepeatedFieldsGenerator. + ByteString data = TestParsingMergeLite.RepeatedFieldsGenerator.newBuilder() + .addField1(msg1).addField1(msg2).addField1(msg3) + .addField2(msg1).addField2(msg2).addField2(msg3) + .addField3(msg1).addField3(msg2).addField3(msg3) + .addGroup1(optionalG1).addGroup1(optionalG2).addGroup1(optionalG3) + .addGroup2(repeatedG1).addGroup2(repeatedG2).addGroup2(repeatedG3) + .addExt1(msg1).addExt1(msg2).addExt1(msg3) + .addExt2(msg1).addExt2(msg2).addExt2(msg3) + .build().toByteString(); + + // Parse TestParsingMergeLite. + ExtensionRegistry registry = ExtensionRegistry.newInstance(); + UnittestLite.registerAllExtensions(registry); + TestParsingMergeLite parsingMerge = + TestParsingMergeLite.PARSER.parseFrom(data, registry); + + // Required and optional fields should be merged. + assertMessageMerged(parsingMerge.getRequiredAllTypes()); + assertMessageMerged(parsingMerge.getOptionalAllTypes()); + assertMessageMerged( + parsingMerge.getOptionalGroup().getOptionalGroupAllTypes()); + assertMessageMerged(parsingMerge.getExtension( + TestParsingMergeLite.optionalExt)); + + // Repeated fields should not be merged. + assertEquals(3, parsingMerge.getRepeatedAllTypesCount()); + assertEquals(3, parsingMerge.getRepeatedGroupCount()); + assertEquals(3, parsingMerge.getExtensionCount( + TestParsingMergeLite.repeatedExt)); + } +} |