Bug #11754855 46528: NEED A WAY TO PASS A VARIABLE TO MTR COMMANDS

modified function do_get_error in mysqltest.cc to handle multiple variable passed
added test case to mysqltest.test to verify handling to multiple errors passed

client/mysqltest.cc

@@ -4839,6 +4839,7 @@ void do_get_errcodes(struct st_command *command)
   struct st_match_err *to= saved_expected_errors.err;
   char *p= command->first_argument;
   uint count= 0;
+  char *next;
 
   DBUG_ENTER("do_get_errcodes");
 
@@ -4858,6 +4859,17 @@ void do_get_errcodes(struct st_command *command)
     while (*end && *end != ',' && *end != ' ')
       end++;
 
+    next=end;
+
+    /* code to handle variables passed to mysqltest */
+     if( *p == '$')
+     {
+        const char* fin;
+        VAR *var = var_get(p,&fin,0,0);
+        p=var->str_val;
+        end=p+var->str_val_len;
+     }
+
     if (*p == 'S')
     {
       char *to_ptr= to->code.sqlstate;
@@ -4932,7 +4944,7 @@ void do_get_errcodes(struct st_command *command)
       die("Too many errorcodes specified");
 
     /* Set pointer to the end of the last error code */
-    p= end;
+    p= next;
 
     /* Find next ',' */
     while (*p && *p != ',')

mysql-test/r/mysqltest.result

@@ -662,6 +662,17 @@ a	D
 1	1
 1	4
 drop table t1;
+create table t2 ( a char(10));
+garbage;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'garbage' at line 1
+garbage;
+Got one of the listed errors
+garbage;
+Got one of the listed errors
+insert into t1 values ("Abcd");
+Got one of the listed errors
+garbage;
+drop table t2;
 create table t1 ( f1 char(10));
 insert into t1 values ("Abcd");
 select * from t1;

mysql-test/t/mysqltest.test

@@ -2065,6 +2065,31 @@ insert into t1 values (2,4);
 select * from t1;
 drop table t1;
 
+#-------------------------------------------------------------------------
+# BUG #11754855 : Passing variable to --error  
+#-------------------------------------------------------------------------
+create table t2 ( a char(10));
+let $errno1=0;
+let $errno2=ER_PARSE_ERROR;
+let $errno3=ER_NO_SUCH_TABLE;
+--error $errno2 
+garbage;
+
+--error $errno2,$errno3
+garbage;
+
+--error $errno2,ER_NO_SUCH_TABLE
+garbage;
+
+--error ER_NO_SUCH_TABLE,$errno2
+insert into t1 values ("Abcd");
+
+--error $errno1,ER_PARSE_ERROR
+garbage;
+
+drop table t2;
+
+
 # ----------------------------------------------------------------------------
 # Tests of send
 # ----------------------------------------------------------------------------