Update //third_party/protobuf to version 3.

third_party/protobuf/java/src/test/java/com/google/protobuf/UnknownFieldSetLiteTest.java

Index: third_party/protobuf/java/src/test/java/com/google/protobuf/UnknownFieldSetLiteTest.java
diff --git a/third_party/protobuf/java/src/test/java/com/google/protobuf/UnknownFieldSetLiteTest.java b/third_party/protobuf/java/src/test/java/com/google/protobuf/UnknownFieldSetLiteTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..dc987379fc6b55518a371a5e04d188c4ad157c5e
--- /dev/null
+++ b/third_party/protobuf/java/src/test/java/com/google/protobuf/UnknownFieldSetLiteTest.java
@@ -0,0 +1,368 @@
+// 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.TestAllExtensionsLite;
+import com.google.protobuf.UnittestLite.TestAllTypesLite;
+import protobuf_unittest.lite_equals_and_hash.LiteEqualsAndHash;
+import protobuf_unittest.lite_equals_and_hash.LiteEqualsAndHash.Bar;
+import protobuf_unittest.lite_equals_and_hash.LiteEqualsAndHash.Foo;
+
+import junit.framework.TestCase;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+/**
+ * Tests for {@link UnknownFieldSetLite}.
+ *
+ * @author dweis@google.com (Daniel Weis)
+ */
+public class UnknownFieldSetLiteTest extends TestCase {
+
+  public void testNoDataIsDefaultInstance() {
+    assertSame(
+        UnknownFieldSetLite.getDefaultInstance(),
+        UnknownFieldSetLite.newBuilder()
+            .build());
+  }
+  
+  public void testBuilderReuse() throws IOException {
+    UnknownFieldSetLite.Builder builder = UnknownFieldSetLite.newBuilder();
+    builder.mergeVarintField(10, 2);
+    builder.build();
+
+    try {
+      builder.build();
+      fail();
+    } catch (UnsupportedOperationException e) {
+      // Expected.
+    }
+
+    try {
+      builder.mergeFieldFrom(0, CodedInputStream.newInstance(new byte[0]));
+      fail();
+    } catch (UnsupportedOperationException e) {
+      // Expected.
+    }
+
+    try {
+      builder.mergeVarintField(5, 1);
+      fail();
+    } catch (UnsupportedOperationException e) {
+      // Expected.
+    }
+  }
+
+  public void testBuilderReuse_empty() {
+    UnknownFieldSetLite.Builder builder = UnknownFieldSetLite.newBuilder();
+    builder.build();
+    builder.build();
+  }
+  
+  public void testDefaultInstance() {
+    UnknownFieldSetLite unknownFields = UnknownFieldSetLite.getDefaultInstance();
+
+    assertEquals(0, unknownFields.getSerializedSize());
+    assertEquals(ByteString.EMPTY, toByteString(unknownFields));
+  }
+
+  public void testMergeFieldFrom() throws IOException {
+    Foo foo = Foo.newBuilder()
+      .setValue(2)
+      .build();
+
+    CodedInputStream input = CodedInputStream.newInstance(foo.toByteArray());
+
+    UnknownFieldSetLite instance = UnknownFieldSetLite.newInstance();
+    instance.mergeFieldFrom(input.readTag(), input);
+
+    assertEquals(foo.toByteString(), toByteString(instance));
+  }
+
+  public void testSerializedSize() throws IOException {
+    Foo foo = Foo.newBuilder()
+      .setValue(2)
+      .build();
+
+    CodedInputStream input = CodedInputStream.newInstance(foo.toByteArray());
+
+    UnknownFieldSetLite instance = UnknownFieldSetLite.newInstance();
+    instance.mergeFieldFrom(input.readTag(), input);
+
+    assertEquals(foo.toByteString().size(), instance.getSerializedSize());
+  }
+
+  public void testMergeVarintField() throws IOException {
+    UnknownFieldSetLite unknownFields = UnknownFieldSetLite.newInstance();
+    unknownFields.mergeVarintField(10, 2);
+
+    CodedInputStream input =
+        CodedInputStream.newInstance(toByteString(unknownFields).toByteArray());
+
+    int tag = input.readTag();
+    assertEquals(10, WireFormat.getTagFieldNumber(tag));
+    assertEquals(WireFormat.WIRETYPE_VARINT, WireFormat.getTagWireType(tag));
+    assertEquals(2, input.readUInt64());
+    assertTrue(input.isAtEnd());
+  }
+
+  public void testMergeVarintField_negative() throws IOException {
+    UnknownFieldSetLite builder = UnknownFieldSetLite.newInstance();
+    builder.mergeVarintField(10, -6);
+
+    CodedInputStream input =
+        CodedInputStream.newInstance(toByteString(builder).toByteArray());
+
+    int tag = input.readTag();
+    assertEquals(10, WireFormat.getTagFieldNumber(tag));
+    assertEquals(WireFormat.WIRETYPE_VARINT, WireFormat.getTagWireType(tag));
+    assertEquals(-6, input.readUInt64());
+    assertTrue(input.isAtEnd());
+  }
+
+  public void testEqualsAndHashCode() {
+    UnknownFieldSetLite unknownFields1 = UnknownFieldSetLite.newInstance();
+    unknownFields1.mergeVarintField(10, 2);
+
+    UnknownFieldSetLite unknownFields2 = UnknownFieldSetLite.newInstance();
+    unknownFields2.mergeVarintField(10, 2);
+
+    assertEquals(unknownFields1, unknownFields2);
+    assertEquals(unknownFields1.hashCode(), unknownFields2.hashCode());
+    assertFalse(unknownFields1.equals(UnknownFieldSetLite.getDefaultInstance()));
+    assertFalse(unknownFields1.hashCode() == UnknownFieldSetLite.getDefaultInstance().hashCode());
+  }
+
+  public void testMutableCopyOf() throws IOException {
+    UnknownFieldSetLite unknownFields = UnknownFieldSetLite.newInstance();
+    unknownFields.mergeVarintField(10, 2);
+    unknownFields = UnknownFieldSetLite.mutableCopyOf(unknownFields, unknownFields);
+    unknownFields.checkMutable();
+
+    CodedInputStream input =
+        CodedInputStream.newInstance(toByteString(unknownFields).toByteArray());
+
+    int tag = input.readTag();
+    assertEquals(10, WireFormat.getTagFieldNumber(tag));
+    assertEquals(WireFormat.WIRETYPE_VARINT, WireFormat.getTagWireType(tag));
+    assertEquals(2, input.readUInt64());
+    assertFalse(input.isAtEnd());
+    input.readTag();
+    assertEquals(10, WireFormat.getTagFieldNumber(tag));
+    assertEquals(WireFormat.WIRETYPE_VARINT, WireFormat.getTagWireType(tag));
+    assertEquals(2, input.readUInt64());
+    assertTrue(input.isAtEnd());
+  }
+
+  public void testMutableCopyOf_empty() {
+    UnknownFieldSetLite unknownFields = UnknownFieldSetLite.mutableCopyOf(
+        UnknownFieldSetLite.getDefaultInstance(), UnknownFieldSetLite.getDefaultInstance());
+    unknownFields.checkMutable();
+
+    assertEquals(0, unknownFields.getSerializedSize());
+    assertEquals(ByteString.EMPTY, toByteString(unknownFields));
+  }
+
+  public void testRoundTrips() throws InvalidProtocolBufferException {
+    Foo foo = Foo.newBuilder()
+        .setValue(1)
+        .setExtension(Bar.fooExt, Bar.newBuilder()
+            .setName("name")
+            .build())
+        .setExtension(LiteEqualsAndHash.varint, 22)
+        .setExtension(LiteEqualsAndHash.fixed32, 44)
+        .setExtension(LiteEqualsAndHash.fixed64, 66L)
+        .setExtension(LiteEqualsAndHash.myGroup, LiteEqualsAndHash.MyGroup.newBuilder()
+            .setGroupValue("value")
+            .build())
+        .build();
+
+    Foo copy = Foo.parseFrom(foo.toByteArray());
+
+    assertEquals(foo.getSerializedSize(), copy.getSerializedSize());
+    assertFalse(foo.equals(copy));
+
+    Foo secondCopy = Foo.parseFrom(foo.toByteArray());
+    assertEquals(copy, secondCopy);
+
+    ExtensionRegistryLite extensionRegistry = ExtensionRegistryLite.newInstance();
+    LiteEqualsAndHash.registerAllExtensions(extensionRegistry);
+    Foo copyOfCopy = Foo.parseFrom(copy.toByteArray(), extensionRegistry);
+
+    assertEquals(foo, copyOfCopy);
+  }
+
+  public void testMalformedBytes() throws Exception {
+    try {
+      Foo.parseFrom("this is a malformed protocol buffer".getBytes(Internal.UTF_8));
+      fail();
+    } catch (InvalidProtocolBufferException e) {
+      // Expected.
+    }
+  }
+
+  public void testMissingStartGroupTag() throws IOException {
+    ByteString.Output byteStringOutput = ByteString.newOutput();
+    CodedOutputStream output = CodedOutputStream.newInstance(byteStringOutput);
+    output.writeGroupNoTag(Foo.newBuilder().setValue(11).build());
+    output.writeTag(100, WireFormat.WIRETYPE_END_GROUP);
+    output.flush();
+
+    try {
+      Foo.parseFrom(byteStringOutput.toByteString());
+      fail();
+    } catch (InvalidProtocolBufferException e) {
+      // Expected.
+    }
+  }
+
+  public void testMissingEndGroupTag() throws IOException {
+    ByteString.Output byteStringOutput = ByteString.newOutput();
+    CodedOutputStream output = CodedOutputStream.newInstance(byteStringOutput);
+    output.writeTag(100, WireFormat.WIRETYPE_START_GROUP);
+    output.writeGroupNoTag(Foo.newBuilder().setValue(11).build());
+    output.flush();
+
+    try {
+      Foo.parseFrom(byteStringOutput.toByteString());
+      fail();
+    } catch (InvalidProtocolBufferException e) {
+      // Expected.
+    }
+  }
+
+  public void testMismatchingGroupTags() throws IOException {
+    ByteString.Output byteStringOutput = ByteString.newOutput();
+    CodedOutputStream output = CodedOutputStream.newInstance(byteStringOutput);
+    output.writeTag(100, WireFormat.WIRETYPE_START_GROUP);
+    output.writeGroupNoTag(Foo.newBuilder().setValue(11).build());
+    output.writeTag(101, WireFormat.WIRETYPE_END_GROUP);
+    output.flush();
+
+    try {
+      Foo.parseFrom(byteStringOutput.toByteString());
+      fail();
+    } catch (InvalidProtocolBufferException e) {
+      // Expected.
+    }
+  }
+
+  public void testTruncatedInput() {
+    Foo foo = Foo.newBuilder()
+        .setValue(1)
+        .setExtension(Bar.fooExt, Bar.newBuilder()
+            .setName("name")
+            .build())
+        .setExtension(LiteEqualsAndHash.varint, 22)
+        .setExtension(LiteEqualsAndHash.myGroup, LiteEqualsAndHash.MyGroup.newBuilder()
+            .setGroupValue("value")
+            .build())
+        .build();
+
+    try {
+      Foo.parseFrom(foo.toByteString().substring(0, foo.toByteString().size() - 10));
+      fail();
+    } catch (InvalidProtocolBufferException e) {
+      // Expected.
+    }
+  }
+  
+  public void testMakeImmutable() throws Exception {
+    UnknownFieldSetLite unknownFields = UnknownFieldSetLite.newInstance();
+    unknownFields.makeImmutable();
+    
+    try {
+      unknownFields.mergeVarintField(1, 1);
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+    
+    try {
+      unknownFields.mergeLengthDelimitedField(2, ByteString.copyFromUtf8("hello"));
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+    
+    try {
+      unknownFields.mergeFieldFrom(1, CodedInputStream.newInstance(new byte[0]));
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+  }
+  
+  public void testEndToEnd() throws Exception {
+    TestAllTypesLite testAllTypes = TestAllTypesLite.getDefaultInstance();
+    try {
+      testAllTypes.unknownFields.checkMutable();
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+    
+    testAllTypes = TestAllTypesLite.parseFrom(new byte[0]);
+    try {
+      testAllTypes.unknownFields.checkMutable();
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+    
+    testAllTypes = TestAllTypesLite.newBuilder().build();
+    try {
+      testAllTypes.unknownFields.checkMutable();
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+    
+    testAllTypes = TestAllTypesLite.newBuilder()
+        .setDefaultBool(true)
+        .build();
+    try {
+      testAllTypes.unknownFields.checkMutable();
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+    
+    TestAllExtensionsLite testAllExtensions = TestAllExtensionsLite.newBuilder()
+        .mergeFrom(TestAllExtensionsLite.newBuilder()
+            .setExtension(UnittestLite.optionalInt32ExtensionLite, 2)
+            .build().toByteArray())
+        .build();
+    try {
+      testAllExtensions.unknownFields.checkMutable();
+      fail();
+    } catch (UnsupportedOperationException expected) {}
+  }
+
+  private ByteString toByteString(UnknownFieldSetLite unknownFields) {
+    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+    CodedOutputStream output = CodedOutputStream.newInstance(byteArrayOutputStream);
+    try {
+      unknownFields.writeTo(output);
+      output.flush();
+    } catch (IOException e) {
+      throw new RuntimeException(e);
+    }
+    return ByteString.copyFrom(byteArrayOutputStream.toByteArray());
+  }
+}