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// 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 protobuf_unittest.UnittestProto;
import java.io.IOException;
import junit.framework.TestCase;
/**
* Tests to make sure the lazy conversion of UTF8-encoded byte arrays to strings works correctly.
*
* @author jonp@google.com (Jon Perlow)
*/
public class LazyStringEndToEndTest extends TestCase {
private static final ByteString TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8 =
ByteString.copyFrom(
new byte[] {
114, 4, -1, 0, -1, 0, -30, 2, 4, -1,
0, -1, 0, -30, 2, 4, -1, 0, -1, 0,
});
private ByteString encodedTestAllTypes;
@Override
protected void setUp() throws Exception {
super.setUp();
this.encodedTestAllTypes =
UnittestProto.TestAllTypes.newBuilder()
.setOptionalString("foo")
.addRepeatedString("bar")
.addRepeatedString("baz")
.build()
.toByteString();
}
/** Tests that an invalid UTF8 string will roundtrip through a parse and serialization. */
public void testParseAndSerialize() throws InvalidProtocolBufferException {
UnittestProto.TestAllTypes tV2 =
UnittestProto.TestAllTypes.parseFrom(TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8);
ByteString bytes = tV2.toByteString();
assertEquals(TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8, bytes);
tV2.getOptionalString();
bytes = tV2.toByteString();
assertEquals(TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8, bytes);
}
public void testParseAndWrite() throws IOException {
UnittestProto.TestAllTypes tV2 =
UnittestProto.TestAllTypes.parseFrom(TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8);
byte[] sink = new byte[TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8.size()];
CodedOutputStream outputStream = CodedOutputStream.newInstance(sink);
tV2.writeTo(outputStream);
outputStream.flush();
assertEquals(TEST_ALL_TYPES_SERIALIZED_WITH_ILLEGAL_UTF8, ByteString.copyFrom(sink));
}
public void testCaching() {
String a = "a";
String b = "b";
String c = "c";
UnittestProto.TestAllTypes proto =
UnittestProto.TestAllTypes.newBuilder()
.setOptionalString(a)
.addRepeatedString(b)
.addRepeatedString(c)
.build();
// String should be the one we passed it.
assertSame(a, proto.getOptionalString());
assertSame(b, proto.getRepeatedString(0));
assertSame(c, proto.getRepeatedString(1));
// Ensure serialization keeps strings cached.
proto.toByteString();
// And now the string should stay cached.
assertSame(a, proto.getOptionalString());
assertSame(b, proto.getRepeatedString(0));
assertSame(c, proto.getRepeatedString(1));
}
public void testNoStringCachingIfOnlyBytesAccessed() throws Exception {
UnittestProto.TestAllTypes proto = UnittestProto.TestAllTypes.parseFrom(encodedTestAllTypes);
ByteString optional = proto.getOptionalStringBytes();
assertSame(optional, proto.getOptionalStringBytes());
assertSame(optional, proto.toBuilder().getOptionalStringBytes());
ByteString repeated0 = proto.getRepeatedStringBytes(0);
ByteString repeated1 = proto.getRepeatedStringBytes(1);
assertSame(repeated0, proto.getRepeatedStringBytes(0));
assertSame(repeated1, proto.getRepeatedStringBytes(1));
assertSame(repeated0, proto.toBuilder().getRepeatedStringBytes(0));
assertSame(repeated1, proto.toBuilder().getRepeatedStringBytes(1));
}
}
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