| /* |
| * Copyright 2018 The gRPC Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package io.grpc.alts.internal; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static org.junit.Assert.fail; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.security.GeneralSecurityException; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for {@link AltsFraming}. */ |
| @RunWith(JUnit4.class) |
| public class AltsFramingTest { |
| |
| @Test |
| public void parserFrameLengthNegativeFails() throws GeneralSecurityException { |
| AltsFraming.Parser parser = new AltsFraming.Parser(); |
| // frame length + one remaining byte (required) |
| ByteBuffer buffer = ByteBuffer.allocate(AltsFraming.getFrameLengthHeaderSize() + 1); |
| buffer.order(ByteOrder.LITTLE_ENDIAN); |
| buffer.putInt(-1); // write invalid length |
| buffer.put((byte) 0); // write some byte |
| buffer.flip(); |
| |
| try { |
| parser.readBytes(buffer); |
| fail("Exception expected"); |
| } catch (IllegalArgumentException ex) { |
| assertThat(ex).hasMessageThat().contains("Invalid frame length"); |
| } |
| } |
| |
| @Test |
| public void parserFrameLengthSmallerMessageTypeFails() throws GeneralSecurityException { |
| AltsFraming.Parser parser = new AltsFraming.Parser(); |
| // frame length + one remaining byte (required) |
| ByteBuffer buffer = ByteBuffer.allocate(AltsFraming.getFrameLengthHeaderSize() + 1); |
| buffer.order(ByteOrder.LITTLE_ENDIAN); |
| buffer.putInt(AltsFraming.getFrameMessageTypeHeaderSize() - 1); // write invalid length |
| buffer.put((byte) 0); // write some byte |
| buffer.flip(); |
| |
| try { |
| parser.readBytes(buffer); |
| fail("Exception expected"); |
| } catch (IllegalArgumentException ex) { |
| assertThat(ex).hasMessageThat().contains("Invalid frame length"); |
| } |
| } |
| |
| @Test |
| public void parserFrameLengthTooLargeFails() throws GeneralSecurityException { |
| AltsFraming.Parser parser = new AltsFraming.Parser(); |
| // frame length + one remaining byte (required) |
| ByteBuffer buffer = ByteBuffer.allocate(AltsFraming.getFrameLengthHeaderSize() + 1); |
| buffer.order(ByteOrder.LITTLE_ENDIAN); |
| buffer.putInt(AltsFraming.getMaxDataLength() + 1); // write invalid length |
| buffer.put((byte) 0); // write some byte |
| buffer.flip(); |
| |
| try { |
| parser.readBytes(buffer); |
| fail("Exception expected"); |
| } catch (IllegalArgumentException ex) { |
| assertThat(ex).hasMessageThat().contains("Invalid frame length"); |
| } |
| } |
| |
| @Test |
| public void parserFrameLengthMaxOk() throws GeneralSecurityException { |
| AltsFraming.Parser parser = new AltsFraming.Parser(); |
| // length of type header + data |
| int dataLength = AltsFraming.getMaxDataLength(); |
| // complete frame + 1 byte |
| ByteBuffer buffer = |
| ByteBuffer.allocate(AltsFraming.getFrameLengthHeaderSize() + dataLength + 1); |
| buffer.order(ByteOrder.LITTLE_ENDIAN); |
| buffer.putInt(dataLength); // write invalid length |
| buffer.putInt(6); // default message type |
| buffer.put(new byte[dataLength - AltsFraming.getFrameMessageTypeHeaderSize()]); // write data |
| buffer.put((byte) 0); |
| buffer.flip(); |
| |
| parser.readBytes(buffer); |
| |
| assertThat(parser.isComplete()).isTrue(); |
| assertThat(buffer.remaining()).isEqualTo(1); |
| } |
| |
| @Test |
| public void parserFrameLengthZeroOk() throws GeneralSecurityException { |
| AltsFraming.Parser parser = new AltsFraming.Parser(); |
| int dataLength = AltsFraming.getFrameMessageTypeHeaderSize(); |
| // complete frame + 1 byte |
| ByteBuffer buffer = |
| ByteBuffer.allocate(AltsFraming.getFrameLengthHeaderSize() + dataLength + 1); |
| buffer.order(ByteOrder.LITTLE_ENDIAN); |
| buffer.putInt(dataLength); // write invalid length |
| buffer.putInt(6); // default message type |
| buffer.put((byte) 0); |
| buffer.flip(); |
| |
| parser.readBytes(buffer); |
| |
| assertThat(parser.isComplete()).isTrue(); |
| assertThat(buffer.remaining()).isEqualTo(1); |
| } |
| } |