ctubbsii commented on a change in pull request #1525:
URL: https://github.com/apache/zookeeper/pull/1525#discussion_r523111518
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File path:
zookeeper-server/src/test/java/org/apache/zookeeper/server/ZooKeeperServerTest.java
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@@ -135,4 +138,32 @@ public void testInvalidSnapshot() {
}
}
+ @Test
+ public void testClientZxidAhead() {
+ ZooKeeperServer zooKeeperServer = new ZooKeeperServer();
+ final ZKDatabase zkDatabase = new
ZKDatabase(mock(FileTxnSnapLog.class));
+ zooKeeperServer.setZKDatabase(zkDatabase);
+
+ final ByteBuffer output = ByteBuffer.allocate(30);
+ // serialize a connReq
+ output.putInt(1);
+ // lastZxid
+ output.putLong(99L);
+ output.putInt(500);
+ output.putLong(123L);
+ output.putInt(1);
+ output.put((byte) 1);
+ output.put((byte) 1);
+ output.flip();
+
+ try {
+ final NIOServerCnxn nioServerCnxn = mock(NIOServerCnxn.class);
+ zooKeeperServer.processConnectRequest(nioServerCnxn, output);
+ } catch (Exception e) {
+ // expect
+ assertTrue(e instanceof NIOServerCnxn.CloseRequestException);
+ assertEquals(((NIOServerCnxn.CloseRequestException)
e).getReason(), ServerCnxn.DisconnectReason.CLIENT_ZXID_AHEAD);
+ }
Review comment:
I believe there's an `assertThrows()` method that might be cleaner than
try-catch, and which returns the exception thrown, so you can check additional
state, like the `getReason()`. The try-catch syntax is fine, though.
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