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-rw-r--r--java/src/test/java/com/google/protobuf/LiteralByteStringTest.java396
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diff --git a/java/src/test/java/com/google/protobuf/LiteralByteStringTest.java b/java/src/test/java/com/google/protobuf/LiteralByteStringTest.java
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--- a/java/src/test/java/com/google/protobuf/LiteralByteStringTest.java
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@@ -1,396 +0,0 @@
-// 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 junit.framework.TestCase;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
-import java.nio.ByteBuffer;
-import java.util.Arrays;
-import java.util.List;
-import java.util.NoSuchElementException;
-
-/**
- * Test {@link LiteralByteString} by setting up a reference string in {@link #setUp()}.
- * This class is designed to be extended for testing extensions of {@link LiteralByteString}
- * such as {@link BoundedByteString}, see {@link BoundedByteStringTest}.
- *
- * @author carlanton@google.com (Carl Haverl)
- */
-public class LiteralByteStringTest extends TestCase {
- protected static final String UTF_8 = "UTF-8";
-
- protected String classUnderTest;
- protected byte[] referenceBytes;
- protected ByteString stringUnderTest;
- protected int expectedHashCode;
-
- @Override
- protected void setUp() throws Exception {
- classUnderTest = "LiteralByteString";
- referenceBytes = ByteStringTest.getTestBytes(1234, 11337766L);
- stringUnderTest = ByteString.copyFrom(referenceBytes);
- expectedHashCode = 331161852;
- }
-
- public void testExpectedType() {
- String actualClassName = getActualClassName(stringUnderTest);
- assertEquals(classUnderTest + " should match type exactly", classUnderTest, actualClassName);
- }
-
- protected String getActualClassName(Object object) {
- String actualClassName = object.getClass().getName();
- actualClassName = actualClassName.substring(actualClassName.lastIndexOf('.') + 1);
- return actualClassName;
- }
-
- public void testByteAt() {
- boolean stillEqual = true;
- for (int i = 0; stillEqual && i < referenceBytes.length; ++i) {
- stillEqual = (referenceBytes[i] == stringUnderTest.byteAt(i));
- }
- assertTrue(classUnderTest + " must capture the right bytes", stillEqual);
- }
-
- public void testByteIterator() {
- boolean stillEqual = true;
- ByteString.ByteIterator iter = stringUnderTest.iterator();
- for (int i = 0; stillEqual && i < referenceBytes.length; ++i) {
- stillEqual = (iter.hasNext() && referenceBytes[i] == iter.nextByte());
- }
- assertTrue(classUnderTest + " must capture the right bytes", stillEqual);
- assertFalse(classUnderTest + " must have exhausted the itertor", iter.hasNext());
-
- try {
- iter.nextByte();
- fail("Should have thrown an exception.");
- } catch (NoSuchElementException e) {
- // This is success
- }
- }
-
- public void testByteIterable() {
- boolean stillEqual = true;
- int j = 0;
- for (byte quantum : stringUnderTest) {
- stillEqual = (referenceBytes[j] == quantum);
- ++j;
- }
- assertTrue(classUnderTest + " must capture the right bytes as Bytes", stillEqual);
- assertEquals(classUnderTest + " iterable character count", referenceBytes.length, j);
- }
-
- public void testSize() {
- assertEquals(classUnderTest + " must have the expected size", referenceBytes.length,
- stringUnderTest.size());
- }
-
- public void testGetTreeDepth() {
- assertEquals(classUnderTest + " must have depth 0", 0, stringUnderTest.getTreeDepth());
- }
-
- public void testIsBalanced() {
- assertTrue(classUnderTest + " is technically balanced", stringUnderTest.isBalanced());
- }
-
- public void testCopyTo_ByteArrayOffsetLength() {
- int destinationOffset = 50;
- int length = 100;
- byte[] destination = new byte[destinationOffset + length];
- int sourceOffset = 213;
- stringUnderTest.copyTo(destination, sourceOffset, destinationOffset, length);
- boolean stillEqual = true;
- for (int i = 0; stillEqual && i < length; ++i) {
- stillEqual = referenceBytes[i + sourceOffset] == destination[i + destinationOffset];
- }
- assertTrue(classUnderTest + ".copyTo(4 arg) must give the expected bytes", stillEqual);
- }
-
- public void testCopyTo_ByteArrayOffsetLengthErrors() {
- int destinationOffset = 50;
- int length = 100;
- byte[] destination = new byte[destinationOffset + length];
-
- try {
- // Copy one too many bytes
- stringUnderTest.copyTo(destination, stringUnderTest.size() + 1 - length,
- destinationOffset, length);
- fail("Should have thrown an exception when copying too many bytes of a "
- + classUnderTest);
- } catch (IndexOutOfBoundsException expected) {
- // This is success
- }
-
- try {
- // Copy with illegal negative sourceOffset
- stringUnderTest.copyTo(destination, -1, destinationOffset, length);
- fail("Should have thrown an exception when given a negative sourceOffset in "
- + classUnderTest);
- } catch (IndexOutOfBoundsException expected) {
- // This is success
- }
-
- try {
- // Copy with illegal negative destinationOffset
- stringUnderTest.copyTo(destination, 0, -1, length);
- fail("Should have thrown an exception when given a negative destinationOffset in "
- + classUnderTest);
- } catch (IndexOutOfBoundsException expected) {
- // This is success
- }
-
- try {
- // Copy with illegal negative size
- stringUnderTest.copyTo(destination, 0, 0, -1);
- fail("Should have thrown an exception when given a negative size in "
- + classUnderTest);
- } catch (IndexOutOfBoundsException expected) {
- // This is success
- }
-
- try {
- // Copy with illegal too-large sourceOffset
- stringUnderTest.copyTo(destination, 2 * stringUnderTest.size(), 0, length);
- fail("Should have thrown an exception when the destinationOffset is too large in "
- + classUnderTest);
- } catch (IndexOutOfBoundsException expected) {
- // This is success
- }
-
- try {
- // Copy with illegal too-large destinationOffset
- stringUnderTest.copyTo(destination, 0, 2 * destination.length, length);
- fail("Should have thrown an exception when the destinationOffset is too large in "
- + classUnderTest);
- } catch (IndexOutOfBoundsException expected) {
- // This is success
- }
- }
-
- public void testCopyTo_ByteBuffer() {
- ByteBuffer myBuffer = ByteBuffer.allocate(referenceBytes.length);
- stringUnderTest.copyTo(myBuffer);
- assertTrue(classUnderTest + ".copyTo(ByteBuffer) must give back the same bytes",
- Arrays.equals(referenceBytes, myBuffer.array()));
- }
-
- public void testAsReadOnlyByteBuffer() {
- ByteBuffer byteBuffer = stringUnderTest.asReadOnlyByteBuffer();
- byte[] roundTripBytes = new byte[referenceBytes.length];
- assertTrue(byteBuffer.remaining() == referenceBytes.length);
- assertTrue(byteBuffer.isReadOnly());
- byteBuffer.get(roundTripBytes);
- assertTrue(classUnderTest + ".asReadOnlyByteBuffer() must give back the same bytes",
- Arrays.equals(referenceBytes, roundTripBytes));
- }
-
- public void testAsReadOnlyByteBufferList() {
- List<ByteBuffer> byteBuffers = stringUnderTest.asReadOnlyByteBufferList();
- int bytesSeen = 0;
- byte[] roundTripBytes = new byte[referenceBytes.length];
- for (ByteBuffer byteBuffer : byteBuffers) {
- int thisLength = byteBuffer.remaining();
- assertTrue(byteBuffer.isReadOnly());
- assertTrue(bytesSeen + thisLength <= referenceBytes.length);
- byteBuffer.get(roundTripBytes, bytesSeen, thisLength);
- bytesSeen += thisLength;
- }
- assertTrue(bytesSeen == referenceBytes.length);
- assertTrue(classUnderTest + ".asReadOnlyByteBufferTest() must give back the same bytes",
- Arrays.equals(referenceBytes, roundTripBytes));
- }
-
- public void testToByteArray() {
- byte[] roundTripBytes = stringUnderTest.toByteArray();
- assertTrue(classUnderTest + ".toByteArray() must give back the same bytes",
- Arrays.equals(referenceBytes, roundTripBytes));
- }
-
- public void testWriteTo() throws IOException {
- ByteArrayOutputStream bos = new ByteArrayOutputStream();
- stringUnderTest.writeTo(bos);
- byte[] roundTripBytes = bos.toByteArray();
- assertTrue(classUnderTest + ".writeTo() must give back the same bytes",
- Arrays.equals(referenceBytes, roundTripBytes));
- }
-
- public void testWriteTo_mutating() throws IOException {
- OutputStream os = new OutputStream() {
- @Override
- public void write(byte[] b, int off, int len) {
- for (int x = 0; x < len; ++x) {
- b[off + x] = (byte) 0;
- }
- }
-
- @Override
- public void write(int b) {
- // Purposefully left blank.
- }
- };
-
- stringUnderTest.writeTo(os);
- byte[] newBytes = stringUnderTest.toByteArray();
- assertTrue(classUnderTest + ".writeTo() must not grant access to underlying array",
- Arrays.equals(referenceBytes, newBytes));
- }
-
- public void testNewOutput() throws IOException {
- ByteArrayOutputStream bos = new ByteArrayOutputStream();
- ByteString.Output output = ByteString.newOutput();
- stringUnderTest.writeTo(output);
- assertEquals("Output Size returns correct result",
- output.size(), stringUnderTest.size());
- output.writeTo(bos);
- assertTrue("Output.writeTo() must give back the same bytes",
- Arrays.equals(referenceBytes, bos.toByteArray()));
-
- // write the output stream to itself! This should cause it to double
- output.writeTo(output);
- assertEquals("Writing an output stream to itself is successful",
- stringUnderTest.concat(stringUnderTest), output.toByteString());
-
- output.reset();
- assertEquals("Output.reset() resets the output", 0, output.size());
- assertEquals("Output.reset() resets the output",
- ByteString.EMPTY, output.toByteString());
-
- }
-
- public void testToString() throws UnsupportedEncodingException {
- String testString = "I love unicode \u1234\u5678 characters";
- LiteralByteString unicode = new LiteralByteString(testString.getBytes(UTF_8));
- String roundTripString = unicode.toString(UTF_8);
- assertEquals(classUnderTest + " unicode must match", testString, roundTripString);
- }
-
- public void testEquals() {
- assertEquals(classUnderTest + " must not equal null", false, stringUnderTest.equals(null));
- assertEquals(classUnderTest + " must equal self", stringUnderTest, stringUnderTest);
- assertFalse(classUnderTest + " must not equal the empty string",
- stringUnderTest.equals(ByteString.EMPTY));
- assertEquals(classUnderTest + " empty strings must be equal",
- new LiteralByteString(new byte[]{}), stringUnderTest.substring(55, 55));
- assertEquals(classUnderTest + " must equal another string with the same value",
- stringUnderTest, new LiteralByteString(referenceBytes));
-
- byte[] mungedBytes = new byte[referenceBytes.length];
- System.arraycopy(referenceBytes, 0, mungedBytes, 0, referenceBytes.length);
- mungedBytes[mungedBytes.length - 5] ^= 0xFF;
- assertFalse(classUnderTest + " must not equal every string with the same length",
- stringUnderTest.equals(new LiteralByteString(mungedBytes)));
- }
-
- public void testHashCode() {
- int hash = stringUnderTest.hashCode();
- assertEquals(classUnderTest + " must have expected hashCode", expectedHashCode, hash);
- }
-
- public void testPeekCachedHashCode() {
- assertEquals(classUnderTest + ".peekCachedHashCode() should return zero at first", 0,
- stringUnderTest.peekCachedHashCode());
- stringUnderTest.hashCode();
- assertEquals(classUnderTest + ".peekCachedHashCode should return zero at first",
- expectedHashCode, stringUnderTest.peekCachedHashCode());
- }
-
- public void testPartialHash() {
- // partialHash() is more strenuously tested elsewhere by testing hashes of substrings.
- // This test would fail if the expected hash were 1. It's not.
- int hash = stringUnderTest.partialHash(stringUnderTest.size(), 0, stringUnderTest.size());
- assertEquals(classUnderTest + ".partialHash() must yield expected hashCode",
- expectedHashCode, hash);
- }
-
- public void testNewInput() throws IOException {
- InputStream input = stringUnderTest.newInput();
- assertEquals("InputStream.available() returns correct value",
- stringUnderTest.size(), input.available());
- boolean stillEqual = true;
- for (byte referenceByte : referenceBytes) {
- int expectedInt = (referenceByte & 0xFF);
- stillEqual = (expectedInt == input.read());
- }
- assertEquals("InputStream.available() returns correct value",
- 0, input.available());
- assertTrue(classUnderTest + " must give the same bytes from the InputStream", stillEqual);
- assertEquals(classUnderTest + " InputStream must now be exhausted", -1, input.read());
- }
-
- public void testNewInput_skip() throws IOException {
- InputStream input = stringUnderTest.newInput();
- int stringSize = stringUnderTest.size();
- int nearEndIndex = stringSize * 2 / 3;
- long skipped1 = input.skip(nearEndIndex);
- assertEquals("InputStream.skip()", skipped1, nearEndIndex);
- assertEquals("InputStream.available()",
- stringSize - skipped1, input.available());
- assertTrue("InputStream.mark() is available", input.markSupported());
- input.mark(0);
- assertEquals("InputStream.skip(), read()",
- stringUnderTest.byteAt(nearEndIndex) & 0xFF, input.read());
- assertEquals("InputStream.available()",
- stringSize - skipped1 - 1, input.available());
- long skipped2 = input.skip(stringSize);
- assertEquals("InputStream.skip() incomplete",
- skipped2, stringSize - skipped1 - 1);
- assertEquals("InputStream.skip(), no more input", 0, input.available());
- assertEquals("InputStream.skip(), no more input", -1, input.read());
- input.reset();
- assertEquals("InputStream.reset() succeded",
- stringSize - skipped1, input.available());
- assertEquals("InputStream.reset(), read()",
- stringUnderTest.byteAt(nearEndIndex) & 0xFF, input.read());
- }
-
- public void testNewCodedInput() throws IOException {
- CodedInputStream cis = stringUnderTest.newCodedInput();
- byte[] roundTripBytes = cis.readRawBytes(referenceBytes.length);
- assertTrue(classUnderTest + " must give the same bytes back from the CodedInputStream",
- Arrays.equals(referenceBytes, roundTripBytes));
- assertTrue(classUnderTest + " CodedInputStream must now be exhausted", cis.isAtEnd());
- }
-
- /**
- * Make sure we keep things simple when concatenating with empty. See also
- * {@link ByteStringTest#testConcat_empty()}.
- */
- public void testConcat_empty() {
- assertSame(classUnderTest + " concatenated with empty must give " + classUnderTest,
- stringUnderTest.concat(ByteString.EMPTY), stringUnderTest);
- assertSame("empty concatenated with " + classUnderTest + " must give " + classUnderTest,
- ByteString.EMPTY.concat(stringUnderTest), stringUnderTest);
- }
-}