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Diffstat (limited to 'third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/CodedInputStreamTest.java')
| -rw-r--r-- | third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/CodedInputStreamTest.java | 1094 |
1 files changed, 1094 insertions, 0 deletions
diff --git a/third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/CodedInputStreamTest.java b/third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/CodedInputStreamTest.java new file mode 100644 index 0000000000..da2c067ebb --- /dev/null +++ b/third_party/protobuf/3.4.0/java/core/src/test/java/com/google/protobuf/CodedInputStreamTest.java @@ -0,0 +1,1094 @@ +// 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.BoolMessage; +import protobuf_unittest.UnittestProto.Int32Message; +import protobuf_unittest.UnittestProto.Int64Message; +import protobuf_unittest.UnittestProto.TestAllTypes; +import protobuf_unittest.UnittestProto.TestRecursiveMessage; +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.FilterInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.nio.ByteBuffer; +import java.util.Arrays; +import junit.framework.TestCase; + +/** + * Unit test for {@link CodedInputStream}. + * + * @author kenton@google.com Kenton Varda + */ +public class CodedInputStreamTest extends TestCase { + private enum InputType { + ARRAY { + @Override + CodedInputStream newDecoder(byte[] data, int blockSize) { + return CodedInputStream.newInstance(data); + } + }, + NIO_HEAP { + @Override + CodedInputStream newDecoder(byte[] data, int blockSize) { + return CodedInputStream.newInstance(ByteBuffer.wrap(data)); + } + }, + NIO_DIRECT { + @Override + CodedInputStream newDecoder(byte[] data, int blockSize) { + ByteBuffer buffer = ByteBuffer.allocateDirect(data.length); + buffer.put(data); + buffer.flip(); + return CodedInputStream.newInstance(buffer); + } + }, + STREAM { + @Override + CodedInputStream newDecoder(byte[] data, int blockSize) { + return CodedInputStream.newInstance(new SmallBlockInputStream(data, blockSize)); + } + }; + + CodedInputStream newDecoder(byte[] data) { + return newDecoder(data, data.length); + } + + abstract CodedInputStream newDecoder(byte[] data, int blockSize); + } + + /** + * Helper to construct a byte array from a bunch of bytes. The inputs are actually ints so that I + * can use hex notation and not get stupid errors about precision. + */ + private byte[] bytes(int... bytesAsInts) { + byte[] bytes = new byte[bytesAsInts.length]; + for (int i = 0; i < bytesAsInts.length; i++) { + bytes[i] = (byte) bytesAsInts[i]; + } + return bytes; + } + + /** + * An InputStream which limits the number of bytes it reads at a time. We use this to make sure + * that CodedInputStream doesn't screw up when reading in small blocks. + */ + private static final class SmallBlockInputStream extends FilterInputStream { + private final int blockSize; + + public SmallBlockInputStream(byte[] data, int blockSize) { + super(new ByteArrayInputStream(data)); + this.blockSize = blockSize; + } + + @Override + public int read(byte[] b) throws IOException { + return super.read(b, 0, Math.min(b.length, blockSize)); + } + + @Override + public int read(byte[] b, int off, int len) throws IOException { + return super.read(b, off, Math.min(len, blockSize)); + } + } + + private void assertDataConsumed(String msg, byte[] data, CodedInputStream input) + throws IOException { + assertEquals(msg, data.length, input.getTotalBytesRead()); + assertTrue(msg, input.isAtEnd()); + } + + /** + * Parses the given bytes using readRawVarint32() and readRawVarint64() and checks that the result + * matches the given value. + */ + private void assertReadVarint(byte[] data, long value) throws Exception { + for (InputType inputType : InputType.values()) { + // Try different block sizes. + for (int blockSize = 1; blockSize <= 16; blockSize *= 2) { + CodedInputStream input = inputType.newDecoder(data, blockSize); + assertEquals(inputType.name(), (int) value, input.readRawVarint32()); + assertDataConsumed(inputType.name(), data, input); + + input = inputType.newDecoder(data, blockSize); + assertEquals(inputType.name(), value, input.readRawVarint64()); + assertDataConsumed(inputType.name(), data, input); + + input = inputType.newDecoder(data, blockSize); + assertEquals(inputType.name(), value, input.readRawVarint64SlowPath()); + assertDataConsumed(inputType.name(), data, input); + + input = inputType.newDecoder(data, blockSize); + assertTrue(inputType.name(), input.skipField(WireFormat.WIRETYPE_VARINT)); + assertDataConsumed(inputType.name(), data, input); + } + } + + // Try reading direct from an InputStream. We want to verify that it + // doesn't read past the end of the input, so we copy to a new, bigger + // array first. + byte[] longerData = new byte[data.length + 1]; + System.arraycopy(data, 0, longerData, 0, data.length); + InputStream rawInput = new ByteArrayInputStream(longerData); + assertEquals((int) value, CodedInputStream.readRawVarint32(rawInput)); + assertEquals(1, rawInput.available()); + } + + /** + * Parses the given bytes using readRawVarint32() and readRawVarint64() and expects them to fail + * with an InvalidProtocolBufferException whose description matches the given one. + */ + private void assertReadVarintFailure(InvalidProtocolBufferException expected, byte[] data) + throws Exception { + for (InputType inputType : InputType.values()) { + try { + CodedInputStream input = inputType.newDecoder(data); + input.readRawVarint32(); + fail(inputType.name() + ": Should have thrown an exception."); + } catch (InvalidProtocolBufferException e) { + assertEquals(inputType.name(), expected.getMessage(), e.getMessage()); + } + try { + CodedInputStream input = inputType.newDecoder(data); + input.readRawVarint64(); + fail(inputType.name() + ": Should have thrown an exception."); + } catch (InvalidProtocolBufferException e) { + assertEquals(inputType.name(), expected.getMessage(), e.getMessage()); + } + } + + // Make sure we get the same error when reading direct from an InputStream. + try { + CodedInputStream.readRawVarint32(new ByteArrayInputStream(data)); + fail("Should have thrown an exception."); + } catch (InvalidProtocolBufferException e) { + assertEquals(expected.getMessage(), e.getMessage()); + } + } + + /** Tests readRawVarint32() and readRawVarint64(). */ + public void testReadVarint() throws Exception { + assertReadVarint(bytes(0x00), 0); + assertReadVarint(bytes(0x01), 1); + assertReadVarint(bytes(0x7f), 127); + // 14882 + assertReadVarint(bytes(0xa2, 0x74), (0x22 << 0) | (0x74 << 7)); + // 2961488830 + assertReadVarint( + bytes(0xbe, 0xf7, 0x92, 0x84, 0x0b), + (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) | (0x0bL << 28)); + + // 64-bit + // 7256456126 + assertReadVarint( + bytes(0xbe, 0xf7, 0x92, 0x84, 0x1b), + (0x3e << 0) | (0x77 << 7) | (0x12 << 14) | (0x04 << 21) | (0x1bL << 28)); + // 41256202580718336 + assertReadVarint( + bytes(0x80, 0xe6, 0xeb, 0x9c, 0xc3, 0xc9, 0xa4, 0x49), + (0x00 << 0) + | (0x66 << 7) + | (0x6b << 14) + | (0x1c << 21) + | (0x43L << 28) + | (0x49L << 35) + | (0x24L << 42) + | (0x49L << 49)); + // 11964378330978735131 + assertReadVarint( + bytes(0x9b, 0xa8, 0xf9, 0xc2, 0xbb, 0xd6, 0x80, 0x85, 0xa6, 0x01), + (0x1b << 0) + | (0x28 << 7) + | (0x79 << 14) + | (0x42 << 21) + | (0x3bL << 28) + | (0x56L << 35) + | (0x00L << 42) + | (0x05L << 49) + | (0x26L << 56) + | (0x01L << 63)); + + // Failures + assertReadVarintFailure( + InvalidProtocolBufferException.malformedVarint(), + bytes(0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00)); + assertReadVarintFailure(InvalidProtocolBufferException.truncatedMessage(), bytes(0x80)); + } + + /** + * Parses the given bytes using readRawLittleEndian32() and checks that the result matches the + * given value. + */ + private void assertReadLittleEndian32(byte[] data, int value) throws Exception { + for (InputType inputType : InputType.values()) { + // Try different block sizes. + for (int blockSize = 1; blockSize <= 16; blockSize *= 2) { + CodedInputStream input = inputType.newDecoder(data, blockSize); + assertEquals(inputType.name(), value, input.readRawLittleEndian32()); + assertTrue(inputType.name(), input.isAtEnd()); + } + } + } + + /** + * Parses the given bytes using readRawLittleEndian64() and checks that the result matches the + * given value. + */ + private void assertReadLittleEndian64(byte[] data, long value) throws Exception { + for (InputType inputType : InputType.values()) { + // Try different block sizes. + for (int blockSize = 1; blockSize <= 16; blockSize *= 2) { + CodedInputStream input = inputType.newDecoder(data, blockSize); + assertEquals(inputType.name(), value, input.readRawLittleEndian64()); + assertTrue(inputType.name(), input.isAtEnd()); + } + } + } + + /** Tests readRawLittleEndian32() and readRawLittleEndian64(). */ + public void testReadLittleEndian() throws Exception { + assertReadLittleEndian32(bytes(0x78, 0x56, 0x34, 0x12), 0x12345678); + assertReadLittleEndian32(bytes(0xf0, 0xde, 0xbc, 0x9a), 0x9abcdef0); + + assertReadLittleEndian64( + bytes(0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12), 0x123456789abcdef0L); + assertReadLittleEndian64( + bytes(0x78, 0x56, 0x34, 0x12, 0xf0, 0xde, 0xbc, 0x9a), 0x9abcdef012345678L); + } + + /** Test decodeZigZag32() and decodeZigZag64(). */ + public void testDecodeZigZag() throws Exception { + assertEquals(0, CodedInputStream.decodeZigZag32(0)); + assertEquals(-1, CodedInputStream.decodeZigZag32(1)); + assertEquals(1, CodedInputStream.decodeZigZag32(2)); + assertEquals(-2, CodedInputStream.decodeZigZag32(3)); + assertEquals(0x3FFFFFFF, CodedInputStream.decodeZigZag32(0x7FFFFFFE)); + assertEquals(0xC0000000, CodedInputStream.decodeZigZag32(0x7FFFFFFF)); + assertEquals(0x7FFFFFFF, CodedInputStream.decodeZigZag32(0xFFFFFFFE)); + assertEquals(0x80000000, CodedInputStream.decodeZigZag32(0xFFFFFFFF)); + + assertEquals(0, CodedInputStream.decodeZigZag64(0)); + assertEquals(-1, CodedInputStream.decodeZigZag64(1)); + assertEquals(1, CodedInputStream.decodeZigZag64(2)); + assertEquals(-2, CodedInputStream.decodeZigZag64(3)); + assertEquals(0x000000003FFFFFFFL, CodedInputStream.decodeZigZag64(0x000000007FFFFFFEL)); + assertEquals(0xFFFFFFFFC0000000L, CodedInputStream.decodeZigZag64(0x000000007FFFFFFFL)); + assertEquals(0x000000007FFFFFFFL, CodedInputStream.decodeZigZag64(0x00000000FFFFFFFEL)); + assertEquals(0xFFFFFFFF80000000L, CodedInputStream.decodeZigZag64(0x00000000FFFFFFFFL)); + assertEquals(0x7FFFFFFFFFFFFFFFL, CodedInputStream.decodeZigZag64(0xFFFFFFFFFFFFFFFEL)); + assertEquals(0x8000000000000000L, CodedInputStream.decodeZigZag64(0xFFFFFFFFFFFFFFFFL)); + } + + /** Tests reading and parsing a whole message with every field type. */ + public void testReadWholeMessage() throws Exception { + TestAllTypes message = TestUtil.getAllSet(); + + byte[] rawBytes = message.toByteArray(); + assertEquals(rawBytes.length, message.getSerializedSize()); + + for (InputType inputType : InputType.values()) { + // Try different block sizes. + for (int blockSize = 1; blockSize < 256; blockSize *= 2) { + TestAllTypes message2 = TestAllTypes.parseFrom(inputType.newDecoder(rawBytes, blockSize)); + TestUtil.assertAllFieldsSet(message2); + } + } + } + + /** Tests skipField(). */ + public void testSkipWholeMessage() throws Exception { + TestAllTypes message = TestUtil.getAllSet(); + byte[] rawBytes = message.toByteArray(); + + InputType[] inputTypes = InputType.values(); + CodedInputStream[] inputs = new CodedInputStream[inputTypes.length]; + for (int i = 0; i < inputs.length; ++i) { + inputs[i] = inputTypes[i].newDecoder(rawBytes); + } + UnknownFieldSet.Builder unknownFields = UnknownFieldSet.newBuilder(); + + while (true) { + CodedInputStream input1 = inputs[0]; + int tag = input1.readTag(); + // Ensure that the rest match. + for (int i = 1; i < inputs.length; ++i) { + assertEquals(inputTypes[i].name(), tag, inputs[i].readTag()); + } + if (tag == 0) { + break; + } + unknownFields.mergeFieldFrom(tag, input1); + // Skip the field for the rest of the inputs. + for (int i = 1; i < inputs.length; ++i) { + inputs[i].skipField(tag); + } + } + } + + + /** + * Test that a bug in skipRawBytes() has been fixed: if the skip skips exactly up to a limit, this + * should not break things. + */ + public void testSkipRawBytesBug() throws Exception { + byte[] rawBytes = new byte[] {1, 2}; + for (InputType inputType : InputType.values()) { + CodedInputStream input = inputType.newDecoder(rawBytes); + int limit = input.pushLimit(1); + input.skipRawBytes(1); + input.popLimit(limit); + assertEquals(inputType.name(), 2, input.readRawByte()); + } + } + + /** + * Test that a bug in skipRawBytes() has been fixed: if the skip skips past the end of a buffer + * with a limit that has been set past the end of that buffer, this should not break things. + */ + public void testSkipRawBytesPastEndOfBufferWithLimit() throws Exception { + byte[] rawBytes = new byte[] {1, 2, 3, 4, 5}; + for (InputType inputType : InputType.values()) { + CodedInputStream input = inputType.newDecoder(rawBytes); + int limit = input.pushLimit(4); + // In order to expose the bug we need to read at least one byte to prime the + // buffer inside the CodedInputStream. + assertEquals(inputType.name(), 1, input.readRawByte()); + // Skip to the end of the limit. + input.skipRawBytes(3); + assertTrue(inputType.name(), input.isAtEnd()); + input.popLimit(limit); + assertEquals(inputType.name(), 5, input.readRawByte()); + } + } + + public void testReadHugeBlob() throws Exception { + // Allocate and initialize a 1MB blob. + byte[] blob = new byte[1 << 20]; + for (int i = 0; i < blob.length; i++) { + blob[i] = (byte) i; + } + + // Make a message containing it. + TestAllTypes.Builder builder = TestAllTypes.newBuilder(); + TestUtil.setAllFields(builder); + builder.setOptionalBytes(ByteString.copyFrom(blob)); + TestAllTypes message = builder.build(); + + byte[] data = message.toByteArray(); + for (InputType inputType : InputType.values()) { + // Serialize and parse it. Make sure to parse from an InputStream, not + // directly from a ByteString, so that CodedInputStream uses buffered + // reading. + TestAllTypes message2 = TestAllTypes.parseFrom(inputType.newDecoder(data)); + + assertEquals(inputType.name(), message.getOptionalBytes(), message2.getOptionalBytes()); + + // Make sure all the other fields were parsed correctly. + TestAllTypes message3 = + TestAllTypes.newBuilder(message2) + .setOptionalBytes(TestUtil.getAllSet().getOptionalBytes()) + .build(); + TestUtil.assertAllFieldsSet(message3); + } + } + + public void testReadMaliciouslyLargeBlob() throws Exception { + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); + + int tag = WireFormat.makeTag(1, WireFormat.WIRETYPE_LENGTH_DELIMITED); + output.writeRawVarint32(tag); + output.writeRawVarint32(0x7FFFFFFF); + output.writeRawBytes(new byte[32]); // Pad with a few random bytes. + output.flush(); + + byte[] data = rawOutput.toByteString().toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream input = inputType.newDecoder(data); + assertEquals(tag, input.readTag()); + try { + input.readBytes(); + fail(inputType.name() + ": Should have thrown an exception!"); + } catch (InvalidProtocolBufferException e) { + // success. + } + } + } + + /** + * Test we can do messages that are up to CodedInputStream#DEFAULT_SIZE_LIMIT + * in size (2G or Integer#MAX_SIZE). + * @throws IOException + */ + public void testParseMessagesCloseTo2G() throws IOException { + byte[] serializedMessage = getBigSerializedMessage(); + // How many of these big messages do we need to take us near our 2G limit? + int count = Integer.MAX_VALUE / serializedMessage.length; + // Now make an inputstream that will fake a near 2G message of messages + // returning our big serialized message 'count' times. + InputStream is = new RepeatingInputStream(serializedMessage, count); + // Parse should succeed! + TestAllTypes.parseFrom(is); + } + + /** + * Test there is an exception if a message exceeds + * CodedInputStream#DEFAULT_SIZE_LIMIT in size (2G or Integer#MAX_SIZE). + * @throws IOException + */ + public void testParseMessagesOver2G() throws IOException { + byte[] serializedMessage = getBigSerializedMessage(); + // How many of these big messages do we need to take us near our 2G limit? + int count = Integer.MAX_VALUE / serializedMessage.length; + // Now add one to take us over the limit + count++; + // Now make an inputstream that will fake a near 2G message of messages + // returning our big serialized message 'count' times. + InputStream is = new RepeatingInputStream(serializedMessage, count); + try { + TestAllTypes.parseFrom(is); + fail("Should have thrown an exception!"); + } catch (InvalidProtocolBufferException e) { + assertTrue(e.getMessage().contains("too large")); + } + } + + /* + * @return A serialized big message. + */ + private static byte[] getBigSerializedMessage() { + byte[] value = new byte[16 * 1024 * 1024]; + ByteString bsValue = ByteString.wrap(value); + return TestAllTypes.newBuilder().setOptionalBytes(bsValue).build().toByteArray(); + } + + /* + * An input stream that repeats a byte arrays' content a number of times. + * Simulates really large input without consuming loads of memory. Used above + * to test the parsing behavior when the input size exceeds 2G or close to it. + */ + private static class RepeatingInputStream extends InputStream { + private final byte[] serializedMessage; + private final int count; + private int index = 0; + private int offset = 0; + + RepeatingInputStream(byte[] serializedMessage, int count) { + this.serializedMessage = serializedMessage; + this.count = count; + } + + @Override + public int read() throws IOException { + if (this.offset == this.serializedMessage.length) { + this.index++; + this.offset = 0; + } + if (this.index == this.count) { + return -1; + } + return this.serializedMessage[offset++]; + } + } + + private TestRecursiveMessage makeRecursiveMessage(int depth) { + if (depth == 0) { + return TestRecursiveMessage.newBuilder().setI(5).build(); + } else { + return TestRecursiveMessage.newBuilder().setA(makeRecursiveMessage(depth - 1)).build(); + } + } + + private void assertMessageDepth(String msg, TestRecursiveMessage message, int depth) { + if (depth == 0) { + assertFalse(msg, message.hasA()); + assertEquals(msg, 5, message.getI()); + } else { + assertTrue(msg, message.hasA()); + assertMessageDepth(msg, message.getA(), depth - 1); + } + } + + public void testMaliciousRecursion() throws Exception { + byte[] data100 = makeRecursiveMessage(100).toByteArray(); + byte[] data101 = makeRecursiveMessage(101).toByteArray(); + + for (InputType inputType : InputType.values()) { + assertMessageDepth( + inputType.name(), TestRecursiveMessage.parseFrom(inputType.newDecoder(data100)), 100); + + try { + TestRecursiveMessage.parseFrom(inputType.newDecoder(data101)); + fail("Should have thrown an exception!"); + } catch (InvalidProtocolBufferException e) { + // success. + } + + CodedInputStream input = inputType.newDecoder(data100); + input.setRecursionLimit(8); + try { + TestRecursiveMessage.parseFrom(input); + fail(inputType.name() + ": Should have thrown an exception!"); + } catch (InvalidProtocolBufferException e) { + // success. + } + } + } + + private void checkSizeLimitExceeded(InvalidProtocolBufferException e) { + assertEquals(InvalidProtocolBufferException.sizeLimitExceeded().getMessage(), e.getMessage()); + } + + public void testSizeLimit() throws Exception { + // NOTE: Size limit only applies to the stream-backed CIS. + CodedInputStream input = + CodedInputStream.newInstance( + new SmallBlockInputStream(TestUtil.getAllSet().toByteArray(), 16)); + input.setSizeLimit(16); + + try { + TestAllTypes.parseFrom(input); + fail("Should have thrown an exception!"); + } catch (InvalidProtocolBufferException expected) { + checkSizeLimitExceeded(expected); + } + } + + public void testResetSizeCounter() throws Exception { + // NOTE: Size limit only applies to the stream-backed CIS. + CodedInputStream input = + CodedInputStream.newInstance(new SmallBlockInputStream(new byte[256], 8)); + input.setSizeLimit(16); + input.readRawBytes(16); + assertEquals(16, input.getTotalBytesRead()); + + try { + input.readRawByte(); + fail("Should have thrown an exception!"); + } catch (InvalidProtocolBufferException expected) { + checkSizeLimitExceeded(expected); + } + + input.resetSizeCounter(); + assertEquals(0, input.getTotalBytesRead()); + input.readRawByte(); // No exception thrown. + input.resetSizeCounter(); + assertEquals(0, input.getTotalBytesRead()); + input.readRawBytes(16); + assertEquals(16, input.getTotalBytesRead()); + input.resetSizeCounter(); + + try { + input.readRawBytes(17); // Hits limit again. + fail("Should have thrown an exception!"); + } catch (InvalidProtocolBufferException expected) { + checkSizeLimitExceeded(expected); + } + } + + public void testRefillBufferWithCorrectSize() throws Exception { + // NOTE: refillBuffer only applies to the stream-backed CIS. + byte[] bytes = "123456789".getBytes("UTF-8"); + ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput, bytes.length); + + int tag = WireFormat.makeTag(1, WireFormat.WIRETYPE_LENGTH_DELIMITED); + output.writeRawVarint32(tag); + output.writeRawVarint32(bytes.length); + output.writeRawBytes(bytes); + output.writeRawVarint32(tag); + output.writeRawVarint32(bytes.length); + output.writeRawBytes(bytes); + output.writeRawByte(4); + output.flush(); + + // Input is two string with length 9 and one raw byte. + byte[] rawInput = rawOutput.toByteArray(); + for (int inputStreamBufferLength = 8; + inputStreamBufferLength <= rawInput.length + 1; inputStreamBufferLength++) { + CodedInputStream input = CodedInputStream.newInstance( + new ByteArrayInputStream(rawInput), inputStreamBufferLength); + input.setSizeLimit(rawInput.length - 1); + input.readString(); + input.readString(); + try { + input.readRawByte(); // Hits limit. + fail("Should have thrown an exception!"); + } catch (InvalidProtocolBufferException expected) { + checkSizeLimitExceeded(expected); + } + } + } + + public void testIsAtEnd() throws Exception { + CodedInputStream input = CodedInputStream.newInstance( + new ByteArrayInputStream(new byte[5])); + try { + for (int i = 0; i < 5; i++) { + assertEquals(false, input.isAtEnd()); + input.readRawByte(); + } + assertEquals(true, input.isAtEnd()); + } catch (Exception e) { + fail("Catch exception in the testIsAtEnd"); + } + } + + public void testCurrentLimitExceeded() throws Exception { + byte[] bytes = "123456789".getBytes("UTF-8"); + ByteArrayOutputStream rawOutput = new ByteArrayOutputStream(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput, bytes.length); + + int tag = WireFormat.makeTag(1, WireFormat.WIRETYPE_LENGTH_DELIMITED); + output.writeRawVarint32(tag); + output.writeRawVarint32(bytes.length); + output.writeRawBytes(bytes); + output.flush(); + + byte[] rawInput = rawOutput.toByteArray(); + CodedInputStream input = CodedInputStream.newInstance( + new ByteArrayInputStream(rawInput)); + // The length of the whole rawInput + input.setSizeLimit(11); + // Some number that is smaller than the rawInput's length + // but larger than 2 + input.pushLimit(5); + try { + input.readString(); + fail("Should have thrown an exception"); + } catch (InvalidProtocolBufferException expected) { + assertEquals(expected.getMessage(), + InvalidProtocolBufferException.truncatedMessage().getMessage()); + } + } + + public void testSizeLimitMultipleMessages() throws Exception { + // NOTE: Size limit only applies to the stream-backed CIS. + byte[] bytes = new byte[256]; + for (int i = 0; i < bytes.length; i++) { + bytes[i] = (byte) i; + } + CodedInputStream input = CodedInputStream.newInstance(new SmallBlockInputStream(bytes, 7)); + input.setSizeLimit(16); + for (int i = 0; i < 256 / 16; i++) { + byte[] message = input.readRawBytes(16); + for (int j = 0; j < message.length; j++) { + assertEquals(i * 16 + j, message[j] & 0xff); + } + assertEquals(16, input.getTotalBytesRead()); + input.resetSizeCounter(); + assertEquals(0, input.getTotalBytesRead()); + } + } + + public void testReadString() throws Exception { + String lorem = "Lorem ipsum dolor sit amet "; + StringBuilder builder = new StringBuilder(); + for (int i = 0; i < 4096; i += lorem.length()) { + builder.append(lorem); + } + lorem = builder.toString().substring(0, 4096); + byte[] bytes = lorem.getBytes("UTF-8"); + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput, bytes.length); + + int tag = WireFormat.makeTag(1, WireFormat.WIRETYPE_LENGTH_DELIMITED); + output.writeRawVarint32(tag); + output.writeRawVarint32(bytes.length); + output.writeRawBytes(bytes); + output.flush(); + + byte[] rawInput = rawOutput.toByteString().toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream input = inputType.newDecoder(rawInput); + assertEquals(inputType.name(), tag, input.readTag()); + String text = input.readString(); + assertEquals(inputType.name(), lorem, text); + } + } + + public void testReadStringRequireUtf8() throws Exception { + String lorem = "Lorem ipsum dolor sit amet "; + StringBuilder builder = new StringBuilder(); + for (int i = 0; i < 4096; i += lorem.length()) { + builder.append(lorem); + } + lorem = builder.toString().substring(0, 4096); + byte[] bytes = lorem.getBytes("UTF-8"); + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput, bytes.length); + + int tag = WireFormat.makeTag(1, WireFormat.WIRETYPE_LENGTH_DELIMITED); + output.writeRawVarint32(tag); + output.writeRawVarint32(bytes.length); + output.writeRawBytes(bytes); + output.flush(); + + byte[] rawInput = rawOutput.toByteString().toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream input = inputType.newDecoder(rawInput); + assertEquals(inputType.name(), tag, input.readTag()); + String text = input.readStringRequireUtf8(); + assertEquals(inputType.name(), lorem, text); + } + } + + /** + * Tests that if we readString invalid UTF-8 bytes, no exception is thrown. Instead, the invalid + * bytes are replaced with the Unicode "replacement character" U+FFFD. + */ + public void testReadStringInvalidUtf8() throws Exception { + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); + + int tag = WireFormat.makeTag(1, WireFormat.WIRETYPE_LENGTH_DELIMITED); + output.writeRawVarint32(tag); + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 0x80}); + output.flush(); + + byte[] rawInput = rawOutput.toByteString().toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream input = inputType.newDecoder(rawInput); + assertEquals(inputType.name(), tag, input.readTag()); + String text = input.readString(); + assertEquals(inputType.name(), 0xfffd, text.charAt(0)); + } + } + + /** + * Tests that if we readStringRequireUtf8 invalid UTF-8 bytes, an InvalidProtocolBufferException + * is thrown. + */ + public void testReadStringRequireUtf8InvalidUtf8() throws Exception { + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); + + int tag = WireFormat.makeTag(1, WireFormat.WIRETYPE_LENGTH_DELIMITED); + output.writeRawVarint32(tag); + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 0x80}); + output.flush(); + + byte[] rawInput = rawOutput.toByteString().toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream input = inputType.newDecoder(rawInput); + assertEquals(tag, input.readTag()); + try { + input.readStringRequireUtf8(); + fail(inputType.name() + ": Expected invalid UTF-8 exception."); + } catch (InvalidProtocolBufferException exception) { + assertEquals( + inputType.name(), "Protocol message had invalid UTF-8.", exception.getMessage()); + } + } + } + + public void testReadFromSlice() throws Exception { + byte[] bytes = bytes(0, 1, 2, 3, 4, 5, 6, 7, 8, 9); + CodedInputStream in = CodedInputStream.newInstance(bytes, 3, 5); + assertEquals(0, in.getTotalBytesRead()); + for (int i = 3; i < 8; i++) { + assertEquals(i, in.readRawByte()); + assertEquals(i - 2, in.getTotalBytesRead()); + } + // eof + assertEquals(0, in.readTag()); + assertEquals(5, in.getTotalBytesRead()); + } + + public void testInvalidTag() throws Exception { + // Any tag number which corresponds to field number zero is invalid and + // should throw InvalidProtocolBufferException. + for (InputType inputType : InputType.values()) { + for (int i = 0; i < 8; i++) { + try { + inputType.newDecoder(bytes(i)).readTag(); + fail(inputType.name() + ": Should have thrown an exception."); + } catch (InvalidProtocolBufferException e) { + assertEquals( + inputType.name(), + InvalidProtocolBufferException.invalidTag().getMessage(), + e.getMessage()); + } + } + } + } + + public void testReadByteArray() throws Exception { + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); + // Zero-sized bytes field. + output.writeRawVarint32(0); + // One one-byte bytes field + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 23}); + // Another one-byte bytes field + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 45}); + // A bytes field large enough that won't fit into the 4K buffer. + final int bytesLength = 16 * 1024; + byte[] bytes = new byte[bytesLength]; + bytes[0] = (byte) 67; + bytes[bytesLength - 1] = (byte) 89; + output.writeRawVarint32(bytesLength); + output.writeRawBytes(bytes); + + output.flush(); + + byte[] rawInput = rawOutput.toByteString().toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream inputStream = inputType.newDecoder(rawInput); + + byte[] result = inputStream.readByteArray(); + assertEquals(inputType.name(), 0, result.length); + result = inputStream.readByteArray(); + assertEquals(inputType.name(), 1, result.length); + assertEquals(inputType.name(), (byte) 23, result[0]); + result = inputStream.readByteArray(); + assertEquals(inputType.name(), 1, result.length); + assertEquals(inputType.name(), (byte) 45, result[0]); + result = inputStream.readByteArray(); + assertEquals(inputType.name(), bytesLength, result.length); + assertEquals(inputType.name(), (byte) 67, result[0]); + assertEquals(inputType.name(), (byte) 89, result[bytesLength - 1]); + } + } + + public void testReadLargeByteStringFromInputStream() throws Exception { + byte[] bytes = new byte[1024 * 1024]; + for (int i = 0; i < bytes.length; i++) { + bytes[i] = (byte) (i & 0xFF); + } + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); + output.writeRawVarint32(bytes.length); + output.writeRawBytes(bytes); + output.flush(); + byte[] data = rawOutput.toByteString().toByteArray(); + + CodedInputStream input = CodedInputStream.newInstance( + new ByteArrayInputStream(data) { + @Override + public synchronized int available() { + return 0; + } + }); + ByteString result = input.readBytes(); + assertEquals(ByteString.copyFrom(bytes), result); + } + + public void testReadLargeByteArrayFromInputStream() throws Exception { + byte[] bytes = new byte[1024 * 1024]; + for (int i = 0; i < bytes.length; i++) { + bytes[i] = (byte) (i & 0xFF); + } + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); + output.writeRawVarint32(bytes.length); + output.writeRawBytes(bytes); + output.flush(); + byte[] data = rawOutput.toByteString().toByteArray(); + + CodedInputStream input = CodedInputStream.newInstance( + new ByteArrayInputStream(data) { + @Override + public synchronized int available() { + return 0; + } + }); + byte[] result = input.readByteArray(); + assertTrue(Arrays.equals(bytes, result)); + } + + public void testReadByteBuffer() throws Exception { + ByteString.Output rawOutput = ByteString.newOutput(); + CodedOutputStream output = CodedOutputStream.newInstance(rawOutput); + // Zero-sized bytes field. + output.writeRawVarint32(0); + // One one-byte bytes field + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 23}); + // Another one-byte bytes field + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 45}); + // A bytes field large enough that won't fit into the 4K buffer. + final int bytesLength = 16 * 1024; + byte[] bytes = new byte[bytesLength]; + bytes[0] = (byte) 67; + bytes[bytesLength - 1] = (byte) 89; + output.writeRawVarint32(bytesLength); + output.writeRawBytes(bytes); + + output.flush(); + + byte[] rawInput = rawOutput.toByteString().toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream inputStream = inputType.newDecoder(rawInput); + + ByteBuffer result = inputStream.readByteBuffer(); + assertEquals(inputType.name(), 0, result.capacity()); + result = inputStream.readByteBuffer(); + assertEquals(inputType.name(), 1, result.capacity()); + assertEquals(inputType.name(), (byte) 23, result.get()); + result = inputStream.readByteBuffer(); + assertEquals(inputType.name(), 1, result.capacity()); + assertEquals(inputType.name(), (byte) 45, result.get()); + result = inputStream.readByteBuffer(); + assertEquals(inputType.name(), bytesLength, result.capacity()); + assertEquals(inputType.name(), (byte) 67, result.get()); + result.position(bytesLength - 1); + assertEquals(inputType.name(), (byte) 89, result.get()); + } + } + + public void testReadByteBufferAliasing() throws Exception { + ByteArrayOutputStream byteArrayStream = new ByteArrayOutputStream(); + CodedOutputStream output = CodedOutputStream.newInstance(byteArrayStream); + // Zero-sized bytes field. + output.writeRawVarint32(0); + // One one-byte bytes field + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 23}); + // Another one-byte bytes field + output.writeRawVarint32(1); + output.writeRawBytes(new byte[] {(byte) 45}); + // A bytes field large enough that won't fit into the 4K buffer. + final int bytesLength = 16 * 1024; + byte[] bytes = new byte[bytesLength]; + bytes[0] = (byte) 67; + bytes[bytesLength - 1] = (byte) 89; + output.writeRawVarint32(bytesLength); + output.writeRawBytes(bytes); + output.flush(); + + byte[] data = byteArrayStream.toByteArray(); + + for (InputType inputType : InputType.values()) { + if (inputType == InputType.STREAM) { + // Aliasing doesn't apply to stream-backed CIS. + continue; + } + + // Without aliasing + CodedInputStream inputStream = inputType.newDecoder(data); + ByteBuffer result = inputStream.readByteBuffer(); + assertEquals(inputType.name(), 0, result.capacity()); + result = inputStream.readByteBuffer(); + assertTrue(inputType.name(), result.array() != data); + assertEquals(inputType.name(), 1, result.capacity()); + assertEquals(inputType.name(), (byte) 23, result.get()); + result = inputStream.readByteBuffer(); + assertTrue(inputType.name(), result.array() != data); + assertEquals(inputType.name(), 1, result.capacity()); + assertEquals(inputType.name(), (byte) 45, result.get()); + result = inputStream.readByteBuffer(); + assertTrue(inputType.name(), result.array() != data); + assertEquals(inputType.name(), bytesLength, result.capacity()); + assertEquals(inputType.name(), (byte) 67, result.get()); + result.position(bytesLength - 1); + assertEquals(inputType.name(), (byte) 89, result.get()); + + // Enable aliasing + inputStream = inputType.newDecoder(data); + inputStream.enableAliasing(true); + result = inputStream.readByteBuffer(); + assertEquals(inputType.name(), 0, result.capacity()); + result = inputStream.readByteBuffer(); + if (result.hasArray()) { + assertTrue(inputType.name(), result.array() == data); + } + assertEquals(inputType.name(), 1, result.capacity()); + assertEquals(inputType.name(), (byte) 23, result.get()); + result = inputStream.readByteBuffer(); + if (result.hasArray()) { + assertTrue(inputType.name(), result.array() == data); + } + assertEquals(inputType.name(), 1, result.capacity()); + assertEquals(inputType.name(), (byte) 45, result.get()); + result = inputStream.readByteBuffer(); + if (result.hasArray()) { + assertTrue(inputType.name(), result.array() == data); + } + assertEquals(inputType.name(), bytesLength, result.capacity()); + assertEquals(inputType.name(), (byte) 67, result.get()); + result.position(bytesLength - 1); + assertEquals(inputType.name(), (byte) 89, result.get()); + } + } + + public void testCompatibleTypes() throws Exception { + long data = 0x100000000L; + Int64Message message = Int64Message.newBuilder().setData(data).build(); + byte[] serialized = message.toByteArray(); + for (InputType inputType : InputType.values()) { + CodedInputStream inputStream = inputType.newDecoder(serialized); + + // Test int64(long) is compatible with bool(boolean) + BoolMessage msg2 = BoolMessage.parseFrom(inputStream); + assertTrue(msg2.getData()); + + // Test int64(long) is compatible with int32(int) + inputStream = inputType.newDecoder(serialized); + Int32Message msg3 = Int32Message.parseFrom(inputStream); + assertEquals((int) data, msg3.getData()); + } + } + + public void testSkipInvalidVarint_FastPath() throws Exception { + // Fast path: We have >= 10 bytes available. Ensure we properly recognize a non-ending varint. + byte[] data = new byte[] {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0}; + for (InputType inputType : InputType.values()) { + try { + CodedInputStream input = inputType.newDecoder(data); + input.skipField(WireFormat.makeTag(1, WireFormat.WIRETYPE_VARINT)); + fail(inputType.name() + ": Should have thrown an exception."); + } catch (InvalidProtocolBufferException e) { + // Expected + } + } + } + + public void testSkipInvalidVarint_SlowPath() throws Exception { + // Slow path: < 10 bytes available. Ensure we properly recognize a non-ending varint. + byte[] data = new byte[] {-1, -1, -1, -1, -1, -1, -1, -1, -1}; + for (InputType inputType : InputType.values()) { + try { + CodedInputStream input = inputType.newDecoder(data); + input.skipField(WireFormat.makeTag(1, WireFormat.WIRETYPE_VARINT)); + fail(inputType.name() + ": Should have thrown an exception."); + } catch (InvalidProtocolBufferException e) { + // Expected + } + } + } +} |