/thirdparty/breakpad/third_party/protobuf/protobuf/java/src/test/java/com/google/protobuf/LazyStringEndToEndTest.java

http://github.com/tomahawk-player/tomahawk · Java · 115 lines · 56 code · 15 blank · 44 comment · 0 complexity · b3b7692231d3fde14092032f56fa01e7 MD5 · raw file

  1. // Protocol Buffers - Google's data interchange format
  2. // Copyright 2008 Google Inc. All rights reserved.
  3. // http://code.google.com/p/protobuf/
  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. package com.google.protobuf;
  31. import protobuf_unittest.UnittestProto;
  32. import junit.framework.TestCase;
  33. import java.io.IOException;
  34. /**
  35. * Tests to make sure the lazy conversion of UTF8-encoded byte arrays to
  36. * strings works correctly.
  37. *
  38. * @author jonp@google.com (Jon Perlow)
  39. */
  40. public class LazyStringEndToEndTest extends TestCase {
  41. private static ByteString TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8 =
  42. ByteString.copyFrom(new byte[] {
  43. 114, 4, -1, 0, -1, 0, -30, 2, 4, -1,
  44. 0, -1, 0, -30, 2, 4, -1, 0, -1, 0, });
  45. /**
  46. * Tests that an invalid UTF8 string will roundtrip through a parse
  47. * and serialization.
  48. */
  49. public void testParseAndSerialize() throws InvalidProtocolBufferException {
  50. UnittestProto.TestAllTypes tV2 = UnittestProto.TestAllTypes.parseFrom(
  51. TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8);
  52. ByteString bytes = tV2.toByteString();
  53. assertEquals(TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8, bytes);
  54. tV2.getOptionalString();
  55. bytes = tV2.toByteString();
  56. assertEquals(TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8, bytes);
  57. }
  58. public void testParseAndWrite() throws IOException {
  59. UnittestProto.TestAllTypes tV2 = UnittestProto.TestAllTypes.parseFrom(
  60. TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8);
  61. byte[] sink = new byte[TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8.size()];
  62. CodedOutputStream outputStream = CodedOutputStream.newInstance(sink);
  63. tV2.writeTo(outputStream);
  64. outputStream.flush();
  65. assertEquals(
  66. TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8,
  67. ByteString.copyFrom(sink));
  68. }
  69. public void testCaching() {
  70. String a = "a";
  71. String b = "b";
  72. String c = "c";
  73. UnittestProto.TestAllTypes proto = UnittestProto.TestAllTypes.newBuilder()
  74. .setOptionalString(a)
  75. .addRepeatedString(b)
  76. .addRepeatedString(c)
  77. .build();
  78. // String should be the one we passed it.
  79. assertSame(a, proto.getOptionalString());
  80. assertSame(b, proto.getRepeatedString(0));
  81. assertSame(c, proto.getRepeatedString(1));
  82. // There's no way to directly observe that the ByteString is cached
  83. // correctly on serialization, but we can observe that it had to recompute
  84. // the string after serialization.
  85. proto.toByteString();
  86. String aPrime = proto.getOptionalString();
  87. assertNotSame(a, aPrime);
  88. assertEquals(a, aPrime);
  89. String bPrime = proto.getRepeatedString(0);
  90. assertNotSame(b, bPrime);
  91. assertEquals(b, bPrime);
  92. String cPrime = proto.getRepeatedString(1);
  93. assertNotSame(c, cPrime);
  94. assertEquals(c, cPrime);
  95. // And now the string should stay cached.
  96. assertSame(aPrime, proto.getOptionalString());
  97. assertSame(bPrime, proto.getRepeatedString(0));
  98. assertSame(cPrime, proto.getRepeatedString(1));
  99. }
  100. }