cmccabe commented on code in PR #14807:
URL: https://github.com/apache/kafka/pull/14807#discussion_r1402476918
##########
metadata/src/test/java/org/apache/kafka/image/ClusterImageTest.java:
##########
@@ -205,4 +207,22 @@ private static List<ApiMessageAndVersion>
getImageRecords(ClusterImage image) {
image.write(writer, new ImageWriterOptions.Builder().build());
return writer.records();
}
+
+ @Test
+ public void testHandleLossOfControllerRegistrations() {
+ ClusterImage testImage = new ClusterImage(Collections.emptyMap(),
+ Collections.singletonMap(1000, new
ControllerRegistration.Builder().
+ setId(1000).
+ setIncarnationId(Uuid.fromString("9ABu6HEgRuS-hjHLgC4cHw")).
+ setListeners(Collections.singletonMap("PLAINTEXT",
+ new Endpoint("PLAINTEXT", SecurityProtocol.PLAINTEXT,
"localhost", 19092))).
+ setSupportedFeatures(Collections.emptyMap()).build()));
+ RecordListWriter writer = new RecordListWriter();
+ final AtomicReference<String> lossString = new AtomicReference<>("");
+ testImage.write(writer, new ImageWriterOptions.Builder().
+ setMetadataVersion(MetadataVersion.IBP_3_6_IV2).
+ setLossHandler(loss -> lossString.compareAndSet("", loss.loss())).
+ build());
+ assertEquals("controller registration data", lossString.get());
Review Comment:
Both of the unit tests I added in this PR verify that a `ClusterImage` with
controller registration generates a snapshot with `RegisterControllerRecords`
if the metadata version is `3.7-IV0`
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