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reset error code in ast fuzzer

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This commit is contained in:
Alexander Kuzmenkov 2020-10-16 17:26:59 +03:00
parent e89a3b5d09
commit 036cdd33c5
1 changed files with 16 additions and 8 deletions
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24
programs/client/Client.cpp
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@ -1202,8 +1202,15 @@ private:
}
catch (...)
{
// Some functions (e.g. protocol parsers) don't throw, but
// set last_exception instead, so we'll also do it here for
// uniformity.
last_exception_received_from_server = std::make_unique<Exception>(getCurrentExceptionMessage(true), getCurrentExceptionCode());
received_exception_from_server = true;
}
if (received_exception_from_server)
{
fmt::print(stderr, "Error on processing query '{}': {}\n",
ast_to_process->formatForErrorMessage(),
last_exception_received_from_server->message());
@ -1213,29 +1220,30 @@ private:
{
// Probably the server is dead because we found an assertion
// failure. Fail fast.
fmt::print(stderr, "Lost connection to the server\n");
return begin;
}
// The server is still alive so we're going to continue fuzzing.
// Determine what we're going to use as the starting AST.
if (received_exception_from_server)
{
// Query completed with error, ignore it and fuzz again.
fprintf(stderr, "Got error, will fuzz again\n");
// Query completed with error, keep the previous starting AST.
// Also discard the exception that we now know to be non-fatal,
// so that it doesn't influence the exit code.
last_exception_received_from_server.reset(nullptr);
received_exception_from_server = false;
last_exception_received_from_server.reset();
continue;
}
else if (ast_to_process->formatForErrorMessage().size() > 500)
{
// ast too long, start from original ast
fprintf(stderr, "current ast too long, won't elaborate\n");
fprintf(stderr, "Current AST is too long, discarding it and using the original AST as a start\n");
fuzz_base = orig_ast;
}
else
{
// fuzz starting from this successful query
fprintf(stderr, "using this ast as etalon\n");
fprintf(stderr, "Query succeeded, using this AST as a start\n");
fuzz_base = ast_to_process;
}
}