diff options
Diffstat (limited to 'java/src/test/java/com/google/protobuf/LazyFieldLiteTest.java')
-rw-r--r-- | java/src/test/java/com/google/protobuf/LazyFieldLiteTest.java | 139 |
1 files changed, 138 insertions, 1 deletions
diff --git a/java/src/test/java/com/google/protobuf/LazyFieldLiteTest.java b/java/src/test/java/com/google/protobuf/LazyFieldLiteTest.java index e67c6d27..211b5697 100644 --- a/java/src/test/java/com/google/protobuf/LazyFieldLiteTest.java +++ b/java/src/test/java/com/google/protobuf/LazyFieldLiteTest.java @@ -30,6 +30,9 @@ 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; @@ -111,12 +114,146 @@ public class LazyFieldLiteTest extends TestCase { 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(TestUtil.getExtensionRegistry(), bytes); + return new LazyFieldLite(extensionRegistry, bytes); } private void changeValue(LazyFieldLite lazyField) { |