content: // Protocol Buffers - Google's data interchange format
  // Copyright 2008 Google Inc.  All rights reserved.
  // https://developers.google.com/protocol-buffers/
  //
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  // modification, are permitted provided that the following conditions are
  // met:
  //
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  // 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.
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  // 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
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  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  package com.google.protobuf;
  
  import com.google.protobuf.PackedFieldTestProto.TestAllTypes;
  import com.google.protobuf.PackedFieldTestProto.TestAllTypes.NestedEnum;
  import com.google.protobuf.PackedFieldTestProto.TestUnpackedTypes;
  import junit.framework.TestCase;
  
  /** Tests primitive repeated fields in proto3 are packed in wire format. */
  public class PackedFieldTest extends TestCase {
    static final ByteString expectedPackedRawBytes =
        ByteString.copyFrom(
            new byte[] {
              (byte) 0xFA,
              0x01,
              0x01,
              0x01, // repeated int32
              (byte) 0x82,
              0x02,
              0x01,
              0x01, // repeated int64
              (byte) 0x8A,
              0x02,
              0x01,
              0x01, // repeated uint32
              (byte) 0x92,
              0x02,
              0x01,
              0x01, // repeated uint64
              (byte) 0x9A,
              0x02,
              0x01,
              0x02, // repeated sint32
              (byte) 0xA2,
              0x02,
              0x01,
              0x02, // repeated sint64
              (byte) 0xAA,
              0x02,
              0x04,
              0x01,
              0x00,
              0x00,
              0x00, // repeated fixed32
              (byte) 0xB2,
              0x02,
              0x08,
              0x01,
              0x00,
              0x00,
              0x00, // repeated fixed64
              0x00,
              0x00,
              0x00,
              0x00,
              (byte) 0xBA,
              0x02,
              0x04,
              0x01,
              0x00,
              0x00,
              0x00, // repeated sfixed32
              (byte) 0xC2,
              0x02,
              0x08,
              0x01,
              0x00,
              0x00,
              0x00, // repeated sfixed64
              0x00,
              0x00,
              0x00,
              0x00,
              (byte) 0xCA,
              0x02,
              0x04,
              0x00,
              0x00,
              (byte) 0x80,
              0x3f, // repeated float
              (byte) 0xD2,
              0x02,
              0x08,
              0x00,
              0x00,
              0x00,
              0x00, // repeated double
              0x00,
              0x00,
              (byte) 0xf0,
              0x3f,
              (byte) 0xDA,
              0x02,
              0x01,
              0x01, // repeated bool
              (byte) 0x9A,
              0x03,
              0x01,
              0x01 // repeated nested enum
            });
  
    static final ByteString expectedUnpackedRawBytes =
        ByteString.copyFrom(
            new byte[] {
              0x08,
              0x01, // repeated int32
              0x10,
              0x01, // repeated int64
              0x18,
              0x01, // repeated uint32
              0x20,
              0x01, // repeated uint64
              0x28,
              0x02, // repeated sint32
              0x30,
              0x02, // repeated sint64
              0x3D,
              0x01,
              0x00,
              0x00,
              0x00, // repeated fixed32
              0x41,
              0x01,
              0x00,
              0x00,
              0x00, // repeated fixed64
              0x00,
              0x00,
              0x00,
              0x00,
              0x4D,
              0x01,
              0x00,
              0x00,
              0x00, // repeated sfixed32
              0x51,
              0x01,
              0x00,
              0x00,
              0x00, // repeated sfixed64
              0x00,
              0x00,
              0x00,
              0x00,
              0x5D,
              0x00,
              0x00,
              (byte) 0x80,
              0x3f, // repeated float
              0x61,
              0x00,
              0x00,
              0x00,
              0x00, // repeated double
              0x00,
              0x00,
              (byte) 0xf0,
              0x3f,
              0x68,
              0x01, // repeated bool
              0x70,
              0x01, // repeated nested enum
            });
  
    public void testPackedGeneratedMessage() throws Exception {
      TestAllTypes message = TestAllTypes.parseFrom(expectedPackedRawBytes);
      assertEquals(expectedPackedRawBytes, message.toByteString());
    }
  
    public void testPackedDynamicMessageSerialize() throws Exception {
      DynamicMessage message =
          DynamicMessage.parseFrom(TestAllTypes.getDescriptor(), expectedPackedRawBytes);
      assertEquals(expectedPackedRawBytes, message.toByteString());
    }
  
    public void testUnpackedGeneratedMessage() throws Exception {
      TestUnpackedTypes message = TestUnpackedTypes.parseFrom(expectedUnpackedRawBytes);
      assertEquals(expectedUnpackedRawBytes, message.toByteString());
    }
  
    public void testUnPackedDynamicMessageSerialize() throws Exception {
      DynamicMessage message =
          DynamicMessage.parseFrom(TestUnpackedTypes.getDescriptor(), expectedUnpackedRawBytes);
      assertEquals(expectedUnpackedRawBytes, message.toByteString());
    }
  
    // Make sure we haven't screwed up the code generation for packing fields by default.
    public void testPackedSerialization() throws Exception {
      TestAllTypes message =
          TestAllTypes.newBuilder()
              .addRepeatedInt32(1234)
              .addRepeatedNestedEnum(NestedEnum.BAR)
              .build();
  
      CodedInputStream in = CodedInputStream.newInstance(message.toByteArray());
  
      while (!in.isAtEnd()) {
        int tag = in.readTag();
        assertEquals(WireFormat.WIRETYPE_LENGTH_DELIMITED, WireFormat.getTagWireType(tag));
        in.skipField(tag);
      }
    }
  }
  