import static org.junit.Assert.assertEquals;
import com.google.common.base.Optional;
+import com.google.common.io.ByteSource;
import com.google.protobuf.ByteString;
-import java.io.ByteArrayOutputStream;
import java.io.IOException;
-import java.io.ObjectOutputStream;
+import java.io.Serializable;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
-import org.junit.Assert;
+import org.apache.commons.lang3.SerializationUtils;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
data.put("key2", "value2");
data.put("key3", "value3");
- byteString = toByteString(data);
+ byteString = ByteString.copyFrom(SerializationUtils.serialize((Serializable) data));
chunk1 = getNextChunk(byteString, 0, 10);
chunk2 = getNextChunk(byteString, 10, 10);
chunk3 = getNextChunk(byteString, 20, byteString.size());
}
@Test
- public void testAddChunk() throws SnapshotTracker.InvalidChunkException {
- SnapshotTracker tracker1 = new SnapshotTracker(logger, 5, "leader");
+ public void testAddChunks() throws IOException {
+ SnapshotTracker tracker = new SnapshotTracker(logger, 3, "leader");
- tracker1.addChunk(1, chunk1, Optional.<Integer>absent());
- tracker1.addChunk(2, chunk2, Optional.<Integer>absent());
- tracker1.addChunk(3, chunk3, Optional.<Integer>absent());
+ tracker.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
+ tracker.addChunk(2, chunk2, Optional.of(Arrays.hashCode(chunk1)));
+ tracker.addChunk(3, chunk3, Optional.of(Arrays.hashCode(chunk2)));
- // Verify that an InvalidChunkException is thrown when we try to add a chunk to a sealed tracker
- SnapshotTracker tracker2 = new SnapshotTracker(logger, 2, "leader");
+ ByteSource snapshotBytes = tracker.getSnapshotBytes();
+ assertEquals("Deserialized", data, SerializationUtils.deserialize(snapshotBytes.read()));
- tracker2.addChunk(1, chunk1, Optional.<Integer>absent());
- tracker2.addChunk(2, chunk2, Optional.<Integer>absent());
-
- try {
- tracker2.addChunk(3, chunk3, Optional.<Integer>absent());
- Assert.fail();
- } catch (SnapshotTracker.InvalidChunkException e) {
- // expected
- }
-
- // The first chunk's index must at least be FIRST_CHUNK_INDEX
- SnapshotTracker tracker3 = new SnapshotTracker(logger, 2, "leader");
+ tracker.close();
+ }
- try {
- tracker3.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX - 1, chunk1, Optional.<Integer>absent());
- Assert.fail();
- } catch (SnapshotTracker.InvalidChunkException e) {
- // expected
+ @Test(expected = SnapshotTracker.InvalidChunkException.class)
+ public void testAddChunkWhenAlreadySealed() throws IOException {
+ try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
+ tracker.addChunk(1, chunk1, Optional.<Integer>absent());
+ tracker.addChunk(2, chunk2, Optional.<Integer>absent());
+ tracker.addChunk(3, chunk3, Optional.<Integer>absent());
}
+ }
- // Out of sequence chunk indexes won't work
- SnapshotTracker tracker4 = new SnapshotTracker(logger, 2, "leader");
-
- tracker4.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX, chunk1, Optional.<Integer>absent());
-
- try {
- tracker4.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX + 2, chunk2, Optional.<Integer>absent());
- Assert.fail();
- } catch (SnapshotTracker.InvalidChunkException e) {
- // expected
+ @Test(expected = SnapshotTracker.InvalidChunkException.class)
+ public void testInvalidFirstChunkIndex() throws IOException {
+ try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
+ tracker.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX - 1, chunk1, Optional.<Integer>absent());
}
+ }
- // No exceptions will be thrown when invalid chunk is added with the right sequence
- // If the lastChunkHashCode is missing
- SnapshotTracker tracker5 = new SnapshotTracker(logger, 2, "leader");
-
- tracker5.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX, chunk1, Optional.<Integer>absent());
- // Look I can add the same chunk again
- tracker5.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX + 1, chunk1, Optional.<Integer>absent());
-
- // An exception will be thrown when an invalid chunk is addedd with the right sequence
- // when the lastChunkHashCode is present
- SnapshotTracker tracker6 = new SnapshotTracker(logger, 2, "leader");
-
- tracker6.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX, chunk1, Optional.of(-1));
-
- try {
- // Here we add a second chunk and tell addChunk that the previous chunk had a hash code 777
- tracker6.addChunk(LeaderInstallSnapshotState.FIRST_CHUNK_INDEX + 1, chunk2, Optional.of(777));
- Assert.fail();
- } catch (SnapshotTracker.InvalidChunkException e) {
- // expected
+ @Test(expected = SnapshotTracker.InvalidChunkException.class)
+ public void testOutOfSequenceChunk() throws IOException {
+ try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
+ tracker.addChunk(1, chunk1, Optional.<Integer>absent());
+ tracker.addChunk(3, chunk3, Optional.<Integer>absent());
}
-
}
- @Test
- public void testGetSnapShot() throws SnapshotTracker.InvalidChunkException {
-
- // Trying to get a snapshot before all chunks have been received will throw an exception
- SnapshotTracker tracker1 = new SnapshotTracker(logger, 5, "leader");
-
- tracker1.addChunk(1, chunk1, Optional.<Integer>absent());
- try {
- tracker1.getSnapshot();
- Assert.fail();
- } catch (IllegalStateException e) {
- // expected
+ @Test(expected = SnapshotTracker.InvalidChunkException.class)
+ public void testInvalidLastChunkHashCode() throws IOException {
+ try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
+ tracker.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
+ tracker.addChunk(2, chunk2, Optional.of(1));
}
-
- SnapshotTracker tracker2 = new SnapshotTracker(logger, 3, "leader");
-
- tracker2.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
- tracker2.addChunk(2, chunk2, Optional.of(Arrays.hashCode(chunk1)));
- tracker2.addChunk(3, chunk3, Optional.of(Arrays.hashCode(chunk2)));
-
- byte[] snapshot = tracker2.getSnapshot();
-
- assertEquals(byteString, ByteString.copyFrom(snapshot));
}
- @Test
- public void testGetCollectedChunks() throws SnapshotTracker.InvalidChunkException {
- SnapshotTracker tracker1 = new SnapshotTracker(logger, 5, "leader");
-
- ByteString chunks = ByteString.copyFrom(chunk1).concat(ByteString.copyFrom(chunk2));
-
- tracker1.addChunk(1, chunk1, Optional.of(LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE));
- tracker1.addChunk(2, chunk2, Optional.of(Arrays.hashCode(chunk1)));
-
- assertEquals(chunks, tracker1.getCollectedChunks());
+ @Test(expected = IllegalStateException.class)
+ public void testGetSnapshotBytesWhenNotSealed() throws IOException {
+ try (SnapshotTracker tracker = new SnapshotTracker(logger, 2, "leader")) {
+ tracker.addChunk(1, chunk1, Optional.<Integer>absent());
+ tracker.getSnapshotBytes();
+ }
}
- public byte[] getNextChunk(ByteString bs, int offset, int size) {
+ private byte[] getNextChunk(ByteString bs, int offset, int size) {
int snapshotLength = bs.size();
int start = offset;
if (size > snapshotLength) {
bs.copyTo(nextChunk, start, 0, size);
return nextChunk;
}
-
- private static ByteString toByteString(Map<String, String> state) {
- ByteArrayOutputStream bos = null;
- ObjectOutputStream os = null;
- try {
- try {
- bos = new ByteArrayOutputStream();
- os = new ObjectOutputStream(bos);
- os.writeObject(state);
- byte[] snapshotBytes = bos.toByteArray();
- return ByteString.copyFrom(snapshotBytes);
- } finally {
- if (os != null) {
- os.flush();
- os.close();
- }
- if (bos != null) {
- bos.close();
- }
- }
- } catch (IOException e) {
- org.junit.Assert.fail("IOException in converting Hashmap to Bytestring:" + e);
- }
- return null;
- }
-
-
}
Code Review / controller.git / blobdiff