z3d1k commented on code in PR #145: URL: https://github.com/apache/flink-connector-aws/pull/145#discussion_r1672531161
########## flink-connector-aws/flink-connector-aws-kinesis-streams/src/test/java/org/apache/flink/connector/kinesis/source/enumerator/tracker/SplitTrackerTest.java: ########## @@ -0,0 +1,387 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.flink.connector.kinesis.source.enumerator.tracker; + +import org.apache.flink.connector.kinesis.source.enumerator.KinesisShardSplitWithAssignmentStatus; +import org.apache.flink.connector.kinesis.source.enumerator.SplitAssignmentStatus; +import org.apache.flink.connector.kinesis.source.split.KinesisShardSplit; + +import org.junit.jupiter.api.Test; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.ValueSource; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collections; +import java.util.HashSet; +import java.util.List; +import java.util.stream.Collectors; +import java.util.stream.Stream; + +import static org.apache.flink.connector.kinesis.source.util.TestUtil.generateShardId; +import static org.apache.flink.connector.kinesis.source.util.TestUtil.getTestSplit; +import static org.assertj.core.api.AssertionsForClassTypes.assertThatNoException; +import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThat; + +class SplitTrackerTest { + + @ParameterizedTest + @ValueSource(booleans = {true, false}) + public void testSplitWithoutParentAreAvailableToAssign(boolean preserveShardOrdering) { + SplitTracker splitTracker = new SplitTracker(preserveShardOrdering); + + KinesisShardSplit split = getTestSplit(generateShardId(1), Collections.emptySet()); + + splitTracker.addSplits(Collections.singletonList(split)); + + List<KinesisShardSplit> pendingSplits = splitTracker.splitsAvailableForAssignment(); + + assertThat(pendingSplits).containsExactly(split); + } + + @ParameterizedTest + @ValueSource(booleans = {true, false}) + public void testStateSnapshot(boolean preserveShardOrdering) { + List<KinesisShardSplit> assignedSplits = + Arrays.asList( + // Shards without parents + getTestSplit(generateShardId(1), Collections.emptySet()), + getTestSplit(generateShardId(2), Collections.emptySet())); + List<KinesisShardSplit> unassignedSplits = + Arrays.asList( + // Shards without parents + getTestSplit(generateShardId(3), Collections.emptySet()), + // Shards produced by splitting parent shard + getTestSplit(generateShardId(4), Collections.singleton(generateShardId(1))), + getTestSplit(generateShardId(5), Collections.singleton(generateShardId(1))), + // Shard produced by merging 2 parent shards + getTestSplit( + generateShardId(6), + new HashSet<>( + Arrays.asList(generateShardId(2), generateShardId(3))))); + + List<KinesisShardSplitWithAssignmentStatus> assignedSplitsWithStatus = + assignedSplits.stream() + .map( + split -> + new KinesisShardSplitWithAssignmentStatus( + split, SplitAssignmentStatus.ASSIGNED)) + .collect(Collectors.toList()); + List<KinesisShardSplitWithAssignmentStatus> unassignedSplitsWithStatus = + unassignedSplits.stream() + .map( + split -> + new KinesisShardSplitWithAssignmentStatus( + split, SplitAssignmentStatus.UNASSIGNED)) + .collect(Collectors.toList()); + List<KinesisShardSplitWithAssignmentStatus> expectedState = + new ArrayList<>(assignedSplitsWithStatus); + expectedState.addAll(unassignedSplitsWithStatus); + + SplitTracker splitTracker = new SplitTracker(preserveShardOrdering); + + splitTracker.addSplits(assignedSplits); + splitTracker.addSplits(unassignedSplits); + splitTracker.markAsAssigned(assignedSplits); + + // Verify that produced state is the same + assertThat(splitTracker.snapshotState(0)) + .containsExactlyInAnyOrderElementsOf(expectedState); + } + + @ParameterizedTest + @ValueSource(booleans = {true, false}) + public void testSplitSnapshotStateDoesNotIncludeFinishedSplits(boolean preserveShardOrdering) { + List<KinesisShardSplit> splits = + Arrays.asList( + // Shards without parents + getTestSplit(generateShardId(1), Collections.emptySet()), + getTestSplit(generateShardId(2), Collections.emptySet()), + getTestSplit(generateShardId(3), Collections.emptySet())); + + List<KinesisShardSplitWithAssignmentStatus> expectedSplitState = + splits.stream() + .map( + split -> + new KinesisShardSplitWithAssignmentStatus( + split, SplitAssignmentStatus.ASSIGNED)) + .collect(Collectors.toList()); + + SplitTracker splitTracker = new SplitTracker(preserveShardOrdering); + splitTracker.addSplits(splits); + splitTracker.markAsAssigned(splits); + + String splitIdToFinish = expectedSplitState.get(0).split().splitId(); + splitTracker.markAsFinished(Collections.singletonList(splitIdToFinish)); + + // Verify that state does not contain finished split + assertThat(splitTracker.snapshotState(0)) + .doesNotContain(expectedSplitState.get(0)) + .containsExactlyInAnyOrder(expectedSplitState.get(1), expectedSplitState.get(2)); + } + + @ParameterizedTest + @ValueSource(booleans = {true, false}) + public void testStateRestore(boolean preserveShardOrdering) { + List<KinesisShardSplit> splits = + Arrays.asList( + // Shards without parents + getTestSplit(generateShardId(1), Collections.emptySet()), + getTestSplit(generateShardId(2), Collections.emptySet()), + getTestSplit(generateShardId(3), Collections.emptySet()), + // Shards produced by splitting parent shard + getTestSplit(generateShardId(4), Collections.singleton(generateShardId(1))), + getTestSplit(generateShardId(5), Collections.singleton(generateShardId(1))), + // Shard produced by merging 2 parent shards + getTestSplit( + generateShardId(6), + new HashSet<>( + Arrays.asList(generateShardId(2), generateShardId(3))))); + + Stream<KinesisShardSplitWithAssignmentStatus> assignedSplits = + splits.subList(0, 3).stream() + .map( + split -> + new KinesisShardSplitWithAssignmentStatus( + split, SplitAssignmentStatus.ASSIGNED)); + Stream<KinesisShardSplitWithAssignmentStatus> unassignedSplits = + splits.subList(3, splits.size()).stream() + .map( + split -> + new KinesisShardSplitWithAssignmentStatus( + split, SplitAssignmentStatus.UNASSIGNED)); + List<KinesisShardSplitWithAssignmentStatus> initialState = + Stream.concat(assignedSplits, unassignedSplits).collect(Collectors.toList()); + + SplitTracker splitTracker = new SplitTracker(preserveShardOrdering, initialState); + + // Verify that produced state is the same + assertThat(splitTracker.snapshotState(0)).containsExactlyInAnyOrderElementsOf(initialState); + } + + @ParameterizedTest + @ValueSource(booleans = {true, false}) + public void testMarkUnknownSplitAsAssignedIsNoop(boolean preserveShardOrdering) { + List<KinesisShardSplit> splits = + Arrays.asList( + getTestSplit(generateShardId(4), Collections.singleton(generateShardId(1))), + getTestSplit(generateShardId(5), Collections.singleton(generateShardId(1))), + getTestSplit( + generateShardId(6), + new HashSet<>( + Arrays.asList(generateShardId(2), generateShardId(3))))); + List<KinesisShardSplitWithAssignmentStatus> initialState = + splits.stream() + .map( + split -> + new KinesisShardSplitWithAssignmentStatus( + split, SplitAssignmentStatus.UNASSIGNED)) + .collect(Collectors.toList()); + + SplitTracker splitTracker = new SplitTracker(preserveShardOrdering, initialState); + List<KinesisShardSplit> splitsToAssign = + Collections.singletonList(getTestSplit(generateShardId(0))); + + assertThatNoException().isThrownBy(() -> splitTracker.markAsAssigned(splitsToAssign)); + } + + @ParameterizedTest + @ValueSource(booleans = {true, false}) + public void testMarkUnknownSplitAsFinishedIsNoop(boolean preserveShardOrdering) { + List<KinesisShardSplit> splits = + Arrays.asList( + getTestSplit(generateShardId(4), Collections.singleton(generateShardId(1))), + getTestSplit(generateShardId(5), Collections.singleton(generateShardId(1))), + getTestSplit( + generateShardId(6), + new HashSet<>( + Arrays.asList(generateShardId(2), generateShardId(3))))); + List<KinesisShardSplitWithAssignmentStatus> initialState = + splits.stream() + .map( + split -> + new KinesisShardSplitWithAssignmentStatus( + split, SplitAssignmentStatus.UNASSIGNED)) + .collect(Collectors.toList()); + + SplitTracker splitTracker = new SplitTracker(preserveShardOrdering, initialState); + List<String> splitIdsToFinish = Collections.singletonList(generateShardId(0)); + + assertThatNoException().isThrownBy(() -> splitTracker.markAsFinished(splitIdsToFinish)); + } + + // ----------------------------------------------------------------------------------------- + // Shard ordering disabled + // ----------------------------------------------------------------------------------------- + + @Test + @ValueSource(booleans = {true, false}) + public void testUnorderedAllUnassignedSplitsAvailableForAssignment() { Review Comment: removed -- This is an automated message from the Apache Git Service. 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