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MDEV-40955 mysql_client_test needs a resolvable DNS on Linux #5618

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MDEV-40955 mysql_client_test needs a resolvable DNS on Linux #5618

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11 changes: 11 additions & 0 deletions tests/mysql_client_test.c
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Original file line number Diff line number Diff line change
Expand Up @@ -20954,6 +20954,7 @@ static MYSQL *proxy_connect_as(const char *client_ip, const char *user,
*/
static void test_proxy_header_connect_errors_reset()
{
#ifndef DBUG_OFF
const char *client_ip= "192.0.2.50";
char query[256];
unsigned int conn_errno= 0;
Expand All @@ -20962,6 +20963,13 @@ static void test_proxy_header_connect_errors_reset()

myheader("test_proxy_header_connect_errors_reset");

/* Force a deterministic "unresolvable" outcome; see hostname.cc. */
rc= mysql_query(mysql, "SET @save_debug_dbug= @@global.debug_dbug");
myquery(rc);
rc= mysql_query(mysql,
"SET GLOBAL debug_dbug='+d,getnameinfo_error_noname'");
myquery(rc);

rc= mysql_query(mysql,
"SET @saved_max_connect_errors= @@global.max_connect_errors");
myquery(rc);
Expand Down Expand Up @@ -21010,6 +21018,9 @@ static void test_proxy_header_connect_errors_reset()
myquery(rc);
rc= mysql_query(mysql, "FLUSH HOSTS");
myquery(rc);
rc= mysql_query(mysql, "SET GLOBAL debug_dbug= @save_debug_dbug");
myquery(rc);
#endif /* !DBUG_OFF */
}

/*
Expand Down