Pull new version of protobuf sources.

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

Index: third_party/protobuf/java/src/test/java/com/google/protobuf/RopeByteStringTest.java
diff --git a/third_party/protobuf/java/src/test/java/com/google/protobuf/RopeByteStringTest.java b/third_party/protobuf/java/src/test/java/com/google/protobuf/RopeByteStringTest.java
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+++ b/third_party/protobuf/java/src/test/java/com/google/protobuf/RopeByteStringTest.java
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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 java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.Arrays;
+import java.util.Iterator;
+
+/**
+ * This class tests {@link RopeByteString} by inheriting the tests from
+ * {@link LiteralByteStringTest}.  Only a couple of methods are overridden.
+ *
+ * <p>A full test of the result of {@link RopeByteString#substring(int, int)} is found in the
+ * separate class {@link RopeByteStringSubstringTest}.
+ *
+ * @author carlanton@google.com (Carl Haverl)
+ */
+public class RopeByteStringTest extends LiteralByteStringTest {
+
+  @Override
+  protected void setUp() throws Exception {
+    classUnderTest = "RopeByteString";
+    referenceBytes = ByteStringTest.getTestBytes(22341, 22337766L);
+    Iterator<ByteString> iter = ByteStringTest.makeConcretePieces(referenceBytes).iterator();
+    stringUnderTest = iter.next();
+    while (iter.hasNext()) {
+      stringUnderTest = stringUnderTest.concat(iter.next());
+    }
+    expectedHashCode = -1214197238;
+  }
+
+  @Override
+  public void testGetTreeDepth() {
+    assertEquals(classUnderTest + " must have the expected tree depth",
+        4, stringUnderTest.getTreeDepth());
+  }
+
+  public void testBalance() {
+    int numberOfPieces = 10000;
+    int pieceSize = 64;
+    byte[] testBytes = ByteStringTest.getTestBytes(numberOfPieces * pieceSize, 113377L);
+
+    // Build up a big ByteString from smaller pieces to force a rebalance
+    ByteString concatenated = ByteString.EMPTY;
+    for (int i = 0; i < numberOfPieces; ++i) {
+      concatenated = concatenated.concat(ByteString.copyFrom(testBytes, i * pieceSize, pieceSize));
+    }
+
+    assertEquals(classUnderTest + " from string must have the expected type",
+        classUnderTest, getActualClassName(concatenated));
+    assertTrue(classUnderTest + " underlying bytes must match after balancing",
+        Arrays.equals(testBytes, concatenated.toByteArray()));
+    ByteString testString = ByteString.copyFrom(testBytes);
+    assertTrue(classUnderTest + " balanced string must equal flat string",
+        concatenated.equals(testString));
+    assertTrue(classUnderTest + " flat string must equal balanced string",
+        testString.equals(concatenated));
+    assertEquals(classUnderTest + " balanced string must have same hash code as flat string",
+        testString.hashCode(), concatenated.hashCode());
+  }
+
+  @Override
+  public void testToString() throws UnsupportedEncodingException {
+    String sourceString = "I love unicode \u1234\u5678 characters";
+    ByteString sourceByteString = ByteString.copyFromUtf8(sourceString);
+    int copies = 250;
+
+    // By building the RopeByteString by concatenating, this is actually a fairly strenuous test.
+    StringBuilder builder = new StringBuilder(copies * sourceString.length());
+    ByteString unicode = ByteString.EMPTY;
+    for (int i = 0; i < copies; ++i) {
+      builder.append(sourceString);
+      unicode = RopeByteString.concatenate(unicode, sourceByteString);
+    }
+    String testString = builder.toString();
+
+    assertEquals(classUnderTest + " from string must have the expected type",
+        classUnderTest, getActualClassName(unicode));
+    String roundTripString = unicode.toString(UTF_8);
+    assertEquals(classUnderTest + " unicode bytes must match",
+        testString, roundTripString);
+    ByteString flatString = ByteString.copyFromUtf8(testString);
+    assertEquals(classUnderTest + " string must equal the flat string", flatString, unicode);
+    assertEquals(classUnderTest + " string must must have same hashCode as the flat string",
+        flatString.hashCode(), unicode.hashCode());
+  }
+
+  @Override
+  public void testCharsetToString() throws UnsupportedEncodingException {
+    String sourceString = "I love unicode \u1234\u5678 characters";
+    ByteString sourceByteString = ByteString.copyFromUtf8(sourceString);
+    int copies = 250;
+
+    // By building the RopeByteString by concatenating, this is actually a fairly strenuous test.
+    StringBuilder builder = new StringBuilder(copies * sourceString.length());
+    ByteString unicode = ByteString.EMPTY;
+    for (int i = 0; i < copies; ++i) {
+      builder.append(sourceString);
+      unicode = RopeByteString.concatenate(unicode, sourceByteString);
+    }
+    String testString = builder.toString();
+
+    assertEquals(classUnderTest + " from string must have the expected type",
+        classUnderTest, getActualClassName(unicode));
+    String roundTripString = unicode.toString(Internal.UTF_8);
+    assertEquals(classUnderTest + " unicode bytes must match",
+        testString, roundTripString);
+    ByteString flatString = ByteString.copyFromUtf8(testString);
+    assertEquals(classUnderTest + " string must equal the flat string", flatString, unicode);
+    assertEquals(classUnderTest + " string must must have same hashCode as the flat string",
+        flatString.hashCode(), unicode.hashCode());
+  }
+
+  @Override
+  public void testToString_returnsCanonicalEmptyString() throws UnsupportedEncodingException {
+    RopeByteString ropeByteString =
+        RopeByteString.newInstanceForTest(ByteString.EMPTY, ByteString.EMPTY);
+    assertSame(classUnderTest + " must be the same string references",
+        ByteString.EMPTY.toString(Internal.UTF_8), ropeByteString.toString(Internal.UTF_8));
+  }
+
+  public void testToString_raisesException() throws UnsupportedEncodingException{
+    try {
+      ByteString byteString =
+          RopeByteString.newInstanceForTest(ByteString.EMPTY, ByteString.EMPTY);
+      byteString.toString("invalid");
+      fail("Should have thrown an exception.");
+    } catch (UnsupportedEncodingException expected) {
+      // This is success
+    }
+
+    try {
+      ByteString byteString = RopeByteString.concatenate(ByteString.copyFromUtf8("foo"),
+          ByteString.copyFromUtf8("bar"));
+      byteString.toString("invalid");
+      fail("Should have thrown an exception.");
+    } catch (UnsupportedEncodingException expected) {
+      // This is success
+    }
+  }
+
+  public void testJavaSerialization() throws Exception {
+    ByteArrayOutputStream out = new ByteArrayOutputStream();
+    ObjectOutputStream oos = new ObjectOutputStream(out);
+    oos.writeObject(stringUnderTest);
+    oos.close();
+    byte[] pickled = out.toByteArray();
+    InputStream in = new ByteArrayInputStream(pickled);
+    ObjectInputStream ois = new ObjectInputStream(in);
+    Object o = ois.readObject();
+    assertTrue("Didn't get a ByteString back", o instanceof ByteString);
+    assertEquals("Should get an equal ByteString back", stringUnderTest, o);
+  }
+}