Make 01565_query_loop_after_client_error slightly more robust

[azat]

CI founds one failure of this test 1, which is quite interesting, the test itself should not takes too long:

2023.06.04 05:01:36.889144 [ 42287 ] {} <Trace> DynamicQueryHandler: Request URI: /?query=SELECT+%27Running+test+stateless%2F01565_query_loop_after_client_error.expect+from+pid%3D1053%27&database=system&connect_timeout=30&receive_timeout=30&send_timeout=30&http_connection_timeout=30&http_receive_timeout=30&http_send_timeout=30&output_format_parallel_formatting=0
...
2023.06.04 05:01:37.364595 [ 42844 ] {fa79939f-1fa0-4f3b-b599-fd2269122d6a} <Debug> executeQuery: (from [::1]:40264) (comment: 01565_query_loop_after_client_error.expect) INSERT INTO t01565(c0, c1) VALUES  (stage: Complete)
2023.06.04 05:01:37.366485 [ 42844 ] {fa79939f-1fa0-4f3b-b599-fd2269122d6a} <Information> TCPHandler: Change cancellation status from NOT_CANCELLED to FULLY_CANCELLED. Log message: Received 'Cancel' packet from the client, canceling the query.
2023.06.04 05:01:37.366810 [ 42844 ] {fa79939f-1fa0-4f3b-b599-fd2269122d6a} <Debug> TCPHandler: Processed in 0.002539914 sec.

But for the last INSERT the client itself works very slow, which seems was the reason why "\r" had been sent too early and was never interpreted:

send: sending "INSERT INTO t01565(c0, c1) VALUES ('1', 1) ;\n" to { exp4 }

expect: does " " (spawn_id exp4) match glob pattern "INSERT"? no
�[21GI�[0m�[J�[22G
expect: does " \u001b[21GI\u001b[0m\u001b[J\u001b[22G" (spawn_id exp4) match glob pattern "INSERT"? no
�[21G
expect: does " \u001b[21GI\u001b[0m\u001b[J\u001b[22G\u001b[21G" (spawn_id exp4) match glob pattern "INSERT"? no
INSERT INTO t�[0m
expect: does " \u001b[21GI\u001b[0m\u001b[J\u001b[22G\u001b[21GINSERT INTO t\u001b[0m" (spawn_id exp4) match glob pattern "INSERT"? yes
expect: set expect_out(0,string) "INSERT"
expect: set expect_out(spawn_id) "exp4"
expect: set expect_out(buffer) " \u001b[21GI\u001b[0m\u001b[J\u001b[22G\u001b[21GINSERT"
send: sending "\r" to { exp4 }

expect: does " INTO t\u001b[0m" (spawn_id exp4) match glob pattern "Ok."? no
�[J
expect: does " INTO t\u001b[0m\u001b[J" (spawn_id exp4) match glob pattern "Ok."? no
�[34G
expect: does " INTO t\u001b[0m\u001b[J\u001b[34G" (spawn_id exp4) match glob pattern "Ok."? no
�[21G
expect: does " INTO t\u001b[0m\u001b[J\u001b[34G\u001b[21G" (spawn_id exp4) match glob pattern "Ok."? no
�[JINSERT INTO t01565�[0;22;33m(�[0mc0�[0;1m,�[0m c1�[0;22;33m)�[0m VALUES �[0;22;33m(�[0;22;36m'1'�[0;1m,�[0m �[0;22;32m1�[0;22;33m)�[0m �[0;1m;�[0m

�[0m�[1G
expect: does " INTO t\u001b[0m\u001b[J\u001b[34G\u001b[21G\u001b[JINSERT INTO t01565\u001b[0;22;33m(\u001b[0mc0\u001b[0;1m,\u001b[0m c1\u001b[0;22;33m)\u001b[0m VALUES \u001b[0;22;33m(\u001b[0;22;36m'1'\u001b[0;1m,\u001b[0m \u001b[0;22;32m1\u001b[0;22;33m)\u001b[0m \u001b[0;1m;\u001b[0m\r\n\r\n\u001b[0m\u001b[1G" (spawn_id exp4) match glob pattern "Ok."? no
expect: timed out

Here you can see that it matched "INSERT" and then expect receive data from the client almost byte by byte.

So I hope that expecting the last part of the query should fix the problem.

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[robot-clickhouse-ci-1]

This is an automated comment for commit 60c2245 with description of existing statuses. It's updated for the latest CI running
The full report is available here
The overall status of the commit is 🔴 failure

Check name	Description	Status
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