| // 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 protobuf_unittest.UnittestProto.optionalInt32Extension; |
| import static protobuf_unittest.UnittestProto.optionalInt64Extension; |
| |
| import protobuf_unittest.UnittestProto.TestAllExtensions; |
| import protobuf_unittest.UnittestProto.TestAllTypes; |
| |
| import java.io.IOException; |
| import junit.framework.TestCase; |
| |
| /** |
| * Unit test for {@link LazyFieldLite}. |
| * |
| * @author xiangl@google.com (Xiang Li) |
| */ |
| public class LazyFieldLiteTest extends TestCase { |
| |
| public void testGetValue() { |
| MessageLite message = TestUtil.getAllSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| assertEquals(message, lazyField.getValue(TestAllTypes.getDefaultInstance())); |
| changeValue(lazyField); |
| assertNotEqual(message, lazyField.getValue(TestAllTypes.getDefaultInstance())); |
| } |
| |
| public void testGetValueEx() throws Exception { |
| TestAllExtensions message = TestUtil.getAllExtensionsSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| assertEquals(message, lazyField.getValue(TestAllExtensions.getDefaultInstance())); |
| changeValue(lazyField); |
| assertNotEqual(message, lazyField.getValue(TestAllExtensions.getDefaultInstance())); |
| } |
| |
| public void testSetValue() { |
| MessageLite message = TestUtil.getAllSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| changeValue(lazyField); |
| assertNotEqual(message, lazyField.getValue(TestAllTypes.getDefaultInstance())); |
| message = lazyField.getValue(TestAllTypes.getDefaultInstance()); |
| changeValue(lazyField); |
| assertEquals(message, lazyField.getValue(TestAllTypes.getDefaultInstance())); |
| } |
| |
| public void testSetValueEx() throws Exception { |
| TestAllExtensions message = TestUtil.getAllExtensionsSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| changeValue(lazyField); |
| assertNotEqual(message, lazyField.getValue(TestAllExtensions.getDefaultInstance())); |
| MessageLite value = lazyField.getValue(TestAllExtensions.getDefaultInstance()); |
| changeValue(lazyField); |
| assertEquals(value, lazyField.getValue(TestAllExtensions.getDefaultInstance())); |
| } |
| |
| public void testGetSerializedSize() { |
| MessageLite message = TestUtil.getAllSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| assertEquals(message.getSerializedSize(), lazyField.getSerializedSize()); |
| changeValue(lazyField); |
| assertNotEqual(message.getSerializedSize(), lazyField.getSerializedSize()); |
| } |
| |
| public void testGetSerializedSizeEx() throws Exception { |
| TestAllExtensions message = TestUtil.getAllExtensionsSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| assertEquals(message.getSerializedSize(), lazyField.getSerializedSize()); |
| changeValue(lazyField); |
| assertNotEqual(message.getSerializedSize(), lazyField.getSerializedSize()); |
| } |
| |
| public void testGetByteString() { |
| MessageLite message = TestUtil.getAllSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| assertEquals(message.toByteString(), lazyField.toByteString()); |
| changeValue(lazyField); |
| assertNotEqual(message.toByteString(), lazyField.toByteString()); |
| } |
| |
| public void testGetByteStringEx() throws Exception { |
| TestAllExtensions message = TestUtil.getAllExtensionsSet(); |
| LazyFieldLite lazyField = createLazyFieldLiteFromMessage(message); |
| assertEquals(message.toByteString(), lazyField.toByteString()); |
| changeValue(lazyField); |
| assertNotEqual(message.toByteString(), lazyField.toByteString()); |
| } |
| |
| public void testMergeExtensions() throws Exception { |
| TestAllExtensions message = TestUtil.getAllExtensionsSet(); |
| LazyFieldLite original = createLazyFieldLiteFromMessage(message); |
| LazyFieldLite merged = new LazyFieldLite(); |
| merged.merge(original); |
| TestAllExtensions value = (TestAllExtensions) merged.getValue( |
| TestAllExtensions.getDefaultInstance()); |
| assertEquals(message, value); |
| } |
| |
| public void testEmptyLazyField() throws Exception { |
| LazyFieldLite field = new LazyFieldLite(); |
| assertEquals(0, field.getSerializedSize()); |
| assertEquals(ByteString.EMPTY, field.toByteString()); |
| } |
| |
| public void testInvalidProto() throws Exception { |
| // Silently fails and uses the default instance. |
| LazyFieldLite field = new LazyFieldLite( |
| TestUtil.getExtensionRegistry(), ByteString.copyFromUtf8("invalid")); |
| assertEquals( |
| TestAllTypes.getDefaultInstance(), field.getValue(TestAllTypes.getDefaultInstance())); |
| assertEquals(0, field.getSerializedSize()); |
| assertEquals(ByteString.EMPTY, field.toByteString()); |
| } |
| |
| public void testMergeBeforeParsing() throws Exception { |
| TestAllTypes message1 = TestAllTypes.newBuilder().setOptionalInt32(1).build(); |
| LazyFieldLite field1 = createLazyFieldLiteFromMessage(message1); |
| TestAllTypes message2 = TestAllTypes.newBuilder().setOptionalInt64(2).build(); |
| LazyFieldLite field2 = createLazyFieldLiteFromMessage(message2); |
| |
| field1.merge(field2); |
| TestAllTypes expected = |
| TestAllTypes.newBuilder().setOptionalInt32(1).setOptionalInt64(2).build(); |
| assertEquals(expected, field1.getValue(TestAllTypes.getDefaultInstance())); |
| } |
| |
| public void testMergeOneNotParsed() throws Exception { |
| // Test a few different paths that involve one message that was not parsed. |
| TestAllTypes message1 = TestAllTypes.newBuilder().setOptionalInt32(1).build(); |
| TestAllTypes message2 = TestAllTypes.newBuilder().setOptionalInt64(2).build(); |
| TestAllTypes expected = |
| TestAllTypes.newBuilder().setOptionalInt32(1).setOptionalInt64(2).build(); |
| |
| LazyFieldLite field1 = LazyFieldLite.fromValue(message1); |
| field1.getValue(TestAllTypes.getDefaultInstance()); // Force parsing. |
| LazyFieldLite field2 = createLazyFieldLiteFromMessage(message2); |
| field1.merge(field2); |
| assertEquals(expected, field1.getValue(TestAllTypes.getDefaultInstance())); |
| |
| // Now reverse which one is parsed first. |
| field1 = LazyFieldLite.fromValue(message1); |
| field2 = createLazyFieldLiteFromMessage(message2); |
| field2.getValue(TestAllTypes.getDefaultInstance()); // Force parsing. |
| field1.merge(field2); |
| assertEquals(expected, field1.getValue(TestAllTypes.getDefaultInstance())); |
| } |
| |
| public void testMergeInvalid() throws Exception { |
| // Test a few different paths that involve one message that was not parsed. |
| TestAllTypes message = TestAllTypes.newBuilder().setOptionalInt32(1).build(); |
| LazyFieldLite valid = LazyFieldLite.fromValue(message); |
| LazyFieldLite invalid = new LazyFieldLite( |
| TestUtil.getExtensionRegistry(), ByteString.copyFromUtf8("invalid")); |
| invalid.merge(valid); |
| |
| // We swallow the exception and just use the set field. |
| assertEquals(message, invalid.getValue(TestAllTypes.getDefaultInstance())); |
| } |
| |
| public void testMergeKeepsExtensionsWhenPossible() throws Exception { |
| // In this test we attempt to only use the empty registry, which will strip out all extensions |
| // when serializing and then parsing. We verify that each code path will attempt to not |
| // serialize and parse a message that was set directly without going through the |
| // extensionRegistry. |
| TestAllExtensions messageWithExtensions = |
| TestAllExtensions.newBuilder().setExtension(optionalInt32Extension, 42).build(); |
| TestAllExtensions emptyMessage = TestAllExtensions.newBuilder().build(); |
| |
| ExtensionRegistryLite emptyRegistry = ExtensionRegistryLite.getEmptyRegistry(); |
| |
| LazyFieldLite field = LazyFieldLite.fromValue(messageWithExtensions); |
| field.merge(createLazyFieldLiteFromMessage(emptyRegistry, emptyMessage)); |
| assertEquals(messageWithExtensions, field.getValue(TestAllExtensions.getDefaultInstance())); |
| |
| // Now reverse the order of the merging. |
| field = createLazyFieldLiteFromMessage(emptyRegistry, emptyMessage); |
| field.merge(LazyFieldLite.fromValue(messageWithExtensions)); |
| assertEquals(messageWithExtensions, field.getValue(TestAllExtensions.getDefaultInstance())); |
| |
| // Now try parsing the empty field first. |
| field = LazyFieldLite.fromValue(messageWithExtensions); |
| LazyFieldLite other = createLazyFieldLiteFromMessage(emptyRegistry, emptyMessage); |
| other.getValue(TestAllExtensions.getDefaultInstance()); // Force parsing. |
| field.merge(other); |
| assertEquals(messageWithExtensions, field.getValue(TestAllExtensions.getDefaultInstance())); |
| |
| // And again reverse. |
| field = createLazyFieldLiteFromMessage(emptyRegistry, emptyMessage); |
| field.getValue(TestAllExtensions.getDefaultInstance()); // Force parsing. |
| other = LazyFieldLite.fromValue(messageWithExtensions); |
| field.merge(other); |
| assertEquals(messageWithExtensions, field.getValue(TestAllExtensions.getDefaultInstance())); |
| } |
| |
| public void testMergeMightLoseExtensions() throws Exception { |
| // Test that we don't know about the extensions when parsing. |
| TestAllExtensions message1 = |
| TestAllExtensions.newBuilder().setExtension(optionalInt32Extension, 1).build(); |
| TestAllExtensions message2 = |
| TestAllExtensions.newBuilder().setExtension(optionalInt64Extension, 2L).build(); |
| |
| LazyFieldLite field = LazyFieldLite.fromValue(message1); |
| field.merge(LazyFieldLite.fromValue(message2)); |
| |
| // We lose the extensions from message 2 because we have to serialize it and then parse it |
| // again, using the empty registry this time. |
| TestAllExtensions value = |
| (TestAllExtensions) field.getValue(TestAllExtensions.getDefaultInstance()); |
| assertTrue(value.hasExtension(optionalInt32Extension)); |
| assertEquals(Integer.valueOf(1), value.getExtension(optionalInt32Extension)); |
| assertFalse(value.hasExtension(optionalInt64Extension)); |
| |
| // The field is still there, it is just unknown. |
| assertTrue(value.getUnknownFields() |
| .hasField(optionalInt64Extension.getDescriptor().getNumber())); |
| } |
| |
| |
| // Help methods. |
| |
| private LazyFieldLite createLazyFieldLiteFromMessage(MessageLite message) { |
| return createLazyFieldLiteFromMessage(TestUtil.getExtensionRegistry(), message); |
| } |
| |
| private LazyFieldLite createLazyFieldLiteFromMessage( |
| ExtensionRegistryLite extensionRegistry, MessageLite message) { |
| ByteString bytes = message.toByteString(); |
| return new LazyFieldLite(extensionRegistry, bytes); |
| } |
| |
| private void changeValue(LazyFieldLite lazyField) { |
| TestAllTypes.Builder builder = TestUtil.getAllSet().toBuilder(); |
| builder.addRepeatedBool(true); |
| MessageLite newMessage = builder.build(); |
| lazyField.setValue(newMessage); |
| } |
| |
| private void assertNotEqual(Object unexpected, Object actual) { |
| assertFalse(unexpected == actual |
| || (unexpected != null && unexpected.equals(actual))); |
| } |
| |
| } |