Added TAP test for MySQL

test/tap/tests/mysql-reg_test_4716_single_semicolon-t.cpp

@@ -0,0 +1,64 @@
+ /**
+  * @file mysql-reg_test_4716_single_semicolon-t.cpp
+  * @brief  This test aims to verify that ProxySQL handles a lone semicolon (;) input
+  * crashing. The expected behavior is for ProxySQL to either ignore the input or return an
+  * appropriate error message, rather than crashing or becoming unresponsive.
+  */
+
+#include <string>
+#include <sstream>
+
+#include "mysql.h"
+#include "command_line.h"
+#include "tap.h"
+#include "utils.h"
+
+CommandLine cl;
+
+enum ConnType {
+    ADMIN,
+    BACKEND
+};
+
+int main(int argc, char** argv) {
+
+    std::vector<const char*> queries = { ";", " ", "", ";  ", "  ;" };
+
+    plan(queries.size() + 1); // Total number of tests planned
+
+    if (cl.getEnv())
+        return exit_status();
+
+    // Initialize Admin connection
+    MYSQL* proxysql_admin = mysql_init(NULL);
+    if (!proxysql_admin) {
+        fprintf(stderr, "File %s, line %d, Error: %s\n", __FILE__, __LINE__, mysql_error(proxysql_admin));
+        return -1;
+    }
+
+    // Connnect to ProxySQL Admin
+    if (!mysql_real_connect(proxysql_admin, cl.host, cl.admin_username, cl.admin_password, NULL, cl.admin_port, NULL, 0)) {
+        fprintf(stderr, "File %s, line %d, Error: %s\n", __FILE__, __LINE__, mysql_error(proxysql_admin));
+        return -1;
+    }
+
+    for (const char* query : queries) {
+        MYSQL_QUERY_err(proxysql_admin, query);
+        const int _errorno = mysql_errno(proxysql_admin);
+        ok(_errorno > 0, "Error Code:%d, Message:%s", _errorno, mysql_error(proxysql_admin));
+    }
+
+    // Test a valid query to ensure the connection is working
+    if (mysql_query(proxysql_admin, "SELECT 1") == 0) {
+        MYSQL_RES* res = mysql_store_result(proxysql_admin);
+        ok(res != nullptr, "Query executed successfully. %s", mysql_error(proxysql_admin));
+        mysql_free_result(res);
+    }
+    else {
+        ok(false, "Error executing query. %s", mysql_error(proxysql_admin));
+    }
+
+    mysql_close(proxysql_admin);
+
+    return exit_status();
+}