sergey-chugunov-1985 commented on code in PR #13640:
URL: https://github.com/apache/ignite/pull/13640#discussion_r4283744260
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modules/core/src/test/java/org/apache/ignite/internal/processors/rollingupgrade/message/RollingUpgradeMessageSerializationTest.java:
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@@ -438,6 +444,95 @@ public void testWholeUpgradeProcess() throws Exception {
checkMessagesTransmissionBetweenAllNodes(A, null, null, null, E, F);
}
+ /** */
+ @Test
+ public void testRawFieldKeptByOldNodeAndResent() throws Exception {
+ startServerNodes("2.20.0", "2.20.1");
+
+ TestMessage rcvd = send(grid(1), grid(0), CORE_MSG);
+
+ assertEquals(TestCoreMessage_2_20_0.class, rcvd.getClass());
+ assertEquals(1, rcvd.rawFields().size());
+ assertEquals(VER_2_20_1_ID_6_FEATURE.id(),
rcvd.rawFields().get(0).tag());
+
+ assertEquals(F, send(grid(0), grid(1), rcvd).fldF());
+ assertEquals(1, rcvd.rawFields().size());
+ assertEquals(F, send(grid(0), grid(1), rcvd).fldF());
Review Comment:
This line is equivalent to L458. What is its purpose?
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