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      1 // Protocol Buffers - Google's data interchange format
      2 // Copyright 2008 Google Inc.  All rights reserved.
      3 // https://developers.google.com/protocol-buffers/
      4 //
      5 // Redistribution and use in source and binary forms, with or without
      6 // modification, are permitted provided that the following conditions are
      7 // met:
      8 //
      9 //     * Redistributions of source code must retain the above copyright
     10 // notice, this list of conditions and the following disclaimer.
     11 //     * Redistributions in binary form must reproduce the above
     12 // copyright notice, this list of conditions and the following disclaimer
     13 // in the documentation and/or other materials provided with the
     14 // distribution.
     15 //     * Neither the name of Google Inc. nor the names of its
     16 // contributors may be used to endorse or promote products derived from
     17 // this software without specific prior written permission.
     18 //
     19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30 
     31 package com.google.protobuf;
     32 
     33 import com.google.protobuf.UnittestLite;
     34 import com.google.protobuf.UnittestLite.TestAllTypesLite;
     35 import com.google.protobuf.UnittestLite.TestAllExtensionsLite;
     36 import com.google.protobuf.UnittestLite.TestNestedExtensionLite;
     37 
     38 import junit.framework.TestCase;
     39 
     40 import java.io.ByteArrayInputStream;
     41 import java.io.ByteArrayOutputStream;
     42 import java.io.ObjectInputStream;
     43 import java.io.ObjectOutputStream;
     44 
     45 /**
     46  * Test lite runtime.
     47  *
     48  * @author kenton (at) google.com Kenton Varda
     49  */
     50 public class LiteTest extends TestCase {
     51   public void setUp() throws Exception {
     52     // Test that nested extensions are initialized correctly even if the outer
     53     // class has not been accessed directly.  This was once a bug with lite
     54     // messages.
     55     //
     56     // We put this in setUp() rather than in its own test method because we
     57     // need to make sure it runs before any actual tests.
     58     assertTrue(TestNestedExtensionLite.nestedExtension != null);
     59   }
     60 
     61   public void testLite() throws Exception {
     62     // Since lite messages are a subset of regular messages, we can mostly
     63     // assume that the functionality of lite messages is already thoroughly
     64     // tested by the regular tests.  All this test really verifies is that
     65     // a proto with optimize_for = LITE_RUNTIME compiles correctly when
     66     // linked only against the lite library.  That is all tested at compile
     67     // time, leaving not much to do in this method.  Let's just do some random
     68     // stuff to make sure the lite message is actually here and usable.
     69 
     70     TestAllTypesLite message =
     71       TestAllTypesLite.newBuilder()
     72                       .setOptionalInt32(123)
     73                       .addRepeatedString("hello")
     74                       .setOptionalNestedMessage(
     75                           TestAllTypesLite.NestedMessage.newBuilder().setBb(7))
     76                       .build();
     77 
     78     ByteString data = message.toByteString();
     79 
     80     TestAllTypesLite message2 = TestAllTypesLite.parseFrom(data);
     81 
     82     assertEquals(123, message2.getOptionalInt32());
     83     assertEquals(1, message2.getRepeatedStringCount());
     84     assertEquals("hello", message2.getRepeatedString(0));
     85     assertEquals(7, message2.getOptionalNestedMessage().getBb());
     86   }
     87 
     88   public void testLiteExtensions() throws Exception {
     89     // TODO(kenton):  Unlike other features of the lite library, extensions are
     90     //   implemented completely differently from the regular library.  We
     91     //   should probably test them more thoroughly.
     92 
     93     TestAllExtensionsLite message =
     94       TestAllExtensionsLite.newBuilder()
     95         .setExtension(UnittestLite.optionalInt32ExtensionLite, 123)
     96         .addExtension(UnittestLite.repeatedStringExtensionLite, "hello")
     97         .setExtension(UnittestLite.optionalNestedEnumExtensionLite,
     98             TestAllTypesLite.NestedEnum.BAZ)
     99         .setExtension(UnittestLite.optionalNestedMessageExtensionLite,
    100             TestAllTypesLite.NestedMessage.newBuilder().setBb(7).build())
    101         .build();
    102 
    103     // Test copying a message, since coping extensions actually does use a
    104     // different code path between lite and regular libraries, and as of this
    105     // writing, parsing hasn't been implemented yet.
    106     TestAllExtensionsLite message2 = message.toBuilder().build();
    107 
    108     assertEquals(123, (int) message2.getExtension(
    109         UnittestLite.optionalInt32ExtensionLite));
    110     assertEquals(1, message2.getExtensionCount(
    111         UnittestLite.repeatedStringExtensionLite));
    112     assertEquals(1, message2.getExtension(
    113         UnittestLite.repeatedStringExtensionLite).size());
    114     assertEquals("hello", message2.getExtension(
    115         UnittestLite.repeatedStringExtensionLite, 0));
    116     assertEquals(TestAllTypesLite.NestedEnum.BAZ, message2.getExtension(
    117         UnittestLite.optionalNestedEnumExtensionLite));
    118     assertEquals(7, message2.getExtension(
    119         UnittestLite.optionalNestedMessageExtensionLite).getBb());
    120   }
    121 
    122   public void testSerialize() throws Exception {
    123     ByteArrayOutputStream baos = new ByteArrayOutputStream();
    124     TestAllTypesLite expected =
    125       TestAllTypesLite.newBuilder()
    126                       .setOptionalInt32(123)
    127                       .addRepeatedString("hello")
    128                       .setOptionalNestedMessage(
    129                           TestAllTypesLite.NestedMessage.newBuilder().setBb(7))
    130                       .build();
    131     ObjectOutputStream out = new ObjectOutputStream(baos);
    132     try {
    133       out.writeObject(expected);
    134     } finally {
    135       out.close();
    136     }
    137     ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    138     ObjectInputStream in = new ObjectInputStream(bais);
    139     TestAllTypesLite actual = (TestAllTypesLite) in.readObject();
    140     assertEquals(expected.getOptionalInt32(), actual.getOptionalInt32());
    141     assertEquals(expected.getRepeatedStringCount(),
    142         actual.getRepeatedStringCount());
    143     assertEquals(expected.getRepeatedString(0),
    144         actual.getRepeatedString(0));
    145     assertEquals(expected.getOptionalNestedMessage().getBb(),
    146         actual.getOptionalNestedMessage().getBb());
    147   }
    148 }
    149