stevenzwu commented on a change in pull request #1477:
URL: https://github.com/apache/iceberg/pull/1477#discussion_r504854061
##########
File path:
flink/src/test/java/org/apache/iceberg/flink/sink/TestIcebergFilesCommitter.java
##########
@@ -473,12 +535,65 @@ public void testBoundedStream() throws Exception {
harness.processElement(dataFile, 1);
((BoundedOneInput) harness.getOneInputOperator()).endInput();
+ assertFlinkManifests(0);
SimpleDataUtil.assertTableRows(tablePath, tableRows);
assertSnapshotSize(1);
assertMaxCommittedCheckpointId(jobId, Long.MAX_VALUE);
}
}
+ @Test
+ public void testFlinkManifests() throws Exception {
+ long timestamp = 0;
+ final long checkpoint = 10;
+
+ JobID jobId = new JobID();
+ try (OneInputStreamOperatorTestHarness<DataFile, Void> harness =
createStreamSink(jobId)) {
+ harness.setup();
+ harness.open();
+
+ assertMaxCommittedCheckpointId(jobId, -1L);
+
+ RowData row1 = SimpleDataUtil.createRowData(1, "hello");
+ DataFile dataFile1 = writeDataFile("data-1", ImmutableList.of(row1));
+
+ harness.processElement(dataFile1, ++timestamp);
+ assertMaxCommittedCheckpointId(jobId, -1L);
+
+ // 1. snapshotState for checkpoint#1
+ harness.snapshot(checkpoint, ++timestamp);
+ List<Path> manifestPaths = assertFlinkManifests(1);
+ Path manifestPath = manifestPaths.get(0);
+ Assert.assertEquals("File name should have the expected pattern.",
+ String.format("%s-%05d-%d-%d-%05d.avro", jobId, 0, 0, checkpoint,
1), manifestPath.getFileName().toString());
+
+ // 2. Read the data files from manifests and assert.
+ List<DataFile> dataFiles =
FlinkManifest.read(createTestingManifestFile(manifestPath), table.io());
+ Assert.assertEquals(1, dataFiles.size());
+ TestFlinkManifest.checkDataFile(dataFile1, dataFiles.get(0));
+
+ // 3. notifyCheckpointComplete for checkpoint#1
+ harness.notifyOfCompletedCheckpoint(checkpoint);
+ SimpleDataUtil.assertTableRows(tablePath, ImmutableList.of(row1));
+ assertMaxCommittedCheckpointId(jobId, checkpoint);
+ assertFlinkManifests(0);
+ }
+ }
+
+ private ManifestFile createTestingManifestFile(Path manifestPath) {
+ return new GenericManifestFile(manifestPath.toAbsolutePath().toString(),
manifestPath.toFile().length(), 0,
+ ManifestContent.DATA, 0, 0, 0L, 0, 0, 0, 0, 0, 0, null);
+ }
+
+ private List<Path> assertFlinkManifests(int expectedCount) throws
IOException {
+ List<Path> manifests = Files.list(flinkManifestFolder.toPath())
+ .filter(p -> !p.toString().endsWith(".crc"))
+ .collect(Collectors.toList());
+ Assert.assertEquals(String.format("Expected %s flink manifests, but the
list is: %s", expectedCount, manifests),
Review comment:
nit: I thought assertEquals will produce an error msg like coded here.
maybe redundant.
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