MXS-2900 Rename maxscale-system-test directory to system-test

A link with the old directory name is provided.

system-test/error_messages.cpp

@@ -0,0 +1,110 @@
+/**
+ * Regression case for the bug "Different error messages from MariaDB and Maxscale"
+ *
+ * - try to connect to non existing DB directly to MariaDB server and via Maxscale
+ * - compare error messages
+ * - repeat for RWSplit, ReadConn
+ */
+
+#include "testconnections.h"
+#include <iostream>
+#include <algorithm>
+
+using std::cout;
+using std::endl;
+
+std::string remove_host(std::string str)
+{
+    auto start = std::find(str.begin(), str.end(), '@');
+    if (start != str.end())
+    {
+        start += 2;
+        auto end = std::find(start, str.end(), '\'');
+        if (end != str.end())
+        {
+            str.erase(start, end);
+        }
+    }
+
+    return str;
+}
+
+
+bool is_equal_error(MYSQL* direct, MYSQL* conn)
+{
+    bool rval = true;
+    std::string direct_err = remove_host(mysql_error(direct));
+    std::string conn_err = remove_host(mysql_error(conn));
+
+    if (direct_err != conn_err)
+    {
+        rval = false;
+        cout << "Wrong error: `" << conn_err << "` (original: `" << direct_err << "`)" << endl;
+    }
+
+    return rval;
+}
+
+int main(int argc, char** argv)
+{
+    TestConnections test(argc, argv);
+
+    cout << "Non-existent database" << endl;
+    test.repl->connect(0, "non_existing_db");
+    test.maxscales->connect(0,  "non_existing_db");
+    test.expect(is_equal_error(test.repl->nodes[0], test.maxscales->conn_rwsplit[0]), "readwritesplit returned wrong error");
+    test.expect(is_equal_error(test.repl->nodes[0], test.maxscales->conn_master[0]), "readconnroute returned wrong error");
+    test.repl->disconnect();
+    test.maxscales->disconnect();
+
+    cout << "Non-existent user" << endl;
+    auto conn_direct = open_conn(test.repl->port[0], test.repl->IP[0], "not-a-user", "not-a-password", false);
+    auto conn_rwsplit = open_conn(test.maxscales->rwsplit_port[0], test.maxscales->IP[0], "not-a-user", "not-a-password", false);
+    auto conn_rconn = open_conn(test.maxscales->rwsplit_port[0], test.maxscales->IP[0], "not-a-user", "not-a-password", false);
+
+    test.expect(is_equal_error(conn_direct, conn_rwsplit), "readwritesplit returned wrong error");
+    test.expect(is_equal_error(conn_direct, conn_rconn), "readconnroute returned wrong error");
+
+    mysql_close(conn_direct);
+    mysql_close(conn_rwsplit);
+    mysql_close(conn_rconn);
+
+    cout << "Wrong password" << endl;
+    conn_direct = open_conn(test.repl->port[0], test.repl->IP[0], "skysql", "not-a-password", false);
+    conn_rwsplit = open_conn(test.maxscales->rwsplit_port[0], test.maxscales->IP[0], "skysql", "not-a-password", false);
+    conn_rconn = open_conn(test.maxscales->rwsplit_port[0], test.maxscales->IP[0], "skysql", "not-a-password", false);
+
+    test.expect(is_equal_error(conn_direct, conn_rwsplit), "readwritesplit returned wrong error");
+    test.expect(is_equal_error(conn_direct, conn_rconn), "readconnroute returned wrong error");
+
+    mysql_close(conn_direct);
+    mysql_close(conn_rwsplit);
+    mysql_close(conn_rconn);
+
+    // Create a database and a user without access to it
+    test.repl->connect();
+    test.try_query(test.repl->nodes[0], "%s", "CREATE USER 'bob'@'%' IDENTIFIED BY 's3cret'");
+    test.try_query(test.repl->nodes[0], "%s", "CREATE DATABASE error_messages");
+    test.repl->sync_slaves();
+    test.repl->disconnect();
+
+    cout << "No permissions on database" << endl;
+    conn_direct = open_conn_db(test.repl->port[0], test.repl->IP[0], "error_messages", "bob", "s3cret", false);
+    conn_rwsplit = open_conn_db(test.maxscales->rwsplit_port[0], test.maxscales->IP[0], "error_messages", "bob", "s3cret", false);
+    conn_rconn = open_conn_db(test.maxscales->rwsplit_port[0], test.maxscales->IP[0], "error_messages", "bob", "s3cret", false);
+
+    test.expect(is_equal_error(conn_direct, conn_rwsplit), "readwritesplit returned wrong error");
+    test.expect(is_equal_error(conn_direct, conn_rconn), "readconnroute returned wrong error");
+
+    mysql_close(conn_direct);
+    mysql_close(conn_rwsplit);
+    mysql_close(conn_rconn);
+
+    // Create a database and a user without access to it
+    test.repl->connect();
+    test.try_query(test.repl->nodes[0], "%s", "DROP USER 'bob'@'%'");
+    test.try_query(test.repl->nodes[0], "%s", "DROP DATABASE error_messages");
+    test.repl->disconnect();
+
+    return test.global_result;
+}