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Diffstat (limited to 'java/core/src/test/java/com/google/protobuf/LazyFieldLiteTest.java')
| -rw-r--r-- | java/core/src/test/java/com/google/protobuf/LazyFieldLiteTest.java | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/java/core/src/test/java/com/google/protobuf/LazyFieldLiteTest.java b/java/core/src/test/java/com/google/protobuf/LazyFieldLiteTest.java new file mode 100644 index 00000000..8d1de6dc --- /dev/null +++ b/java/core/src/test/java/com/google/protobuf/LazyFieldLiteTest.java @@ -0,0 +1,272 @@ +// 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 junit.framework.TestCase; + +import java.io.IOException; + +/** + * 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))); + } + +} |