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72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
#pragma once
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#include <optional>
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#include <Core/Types.h>
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namespace DB
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{
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/// Checks expected server and client error codes in --testmode.
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///
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/// The following comment hints are supported:
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///
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/// - "-- { serverError 60 }" -- in case of you are expecting server error.
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///
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/// - "-- { clientError 20 }" -- in case of you are expecting client error.
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///
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/// - "-- { serverError FUNCTION_THROW_IF_VALUE_IS_NON_ZERO }" -- by error name.
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///
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/// - "-- { clientError FUNCTION_THROW_IF_VALUE_IS_NON_ZERO }" -- by error name.
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///
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/// Remember that the client parse the query first (not the server), so for
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/// example if you are expecting syntax error, then you should use
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/// clientError not serverError.
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///
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/// Examples:
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///
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/// - echo 'select / -- { clientError 62 }' | clickhouse-client --testmode -nm
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///
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// Here the client parses the query but it is incorrect, so it expects
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/// SYNTAX_ERROR (62).
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///
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/// - echo 'select foo -- { serverError 47 }' | clickhouse-client --testmode -nm
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///
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/// But here the query is correct, but there is no such column "foo", so it
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/// is UNKNOWN_IDENTIFIER server error.
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///
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/// The following hints will control the query echo mode (i.e print each query):
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///
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/// - "-- { echo }"
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/// - "-- { echoOn }"
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/// - "-- { echoOff }"
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class TestHint
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{
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public:
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TestHint(bool enabled_, const String & query_);
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int serverError() const { return server_error; }
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int clientError() const { return client_error; }
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std::optional<bool> echoQueries() const { return echo; }
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private:
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const String & query;
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int server_error = 0;
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int client_error = 0;
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std::optional<bool> echo;
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void parse(const String & hint, bool is_leading_hint);
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bool allErrorsExpected(int actual_server_error, int actual_client_error) const
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{
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return (server_error || client_error) && (server_error == actual_server_error) && (client_error == actual_client_error);
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}
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bool lostExpectedError(int actual_server_error, int actual_client_error) const
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{
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return (server_error && !actual_server_error) || (client_error && !actual_client_error);
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}
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};
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}
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