Commit c7b5a8d7 authored by unknown's avatar unknown
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A test case for Bug#4172 "Floating point conversion looses precision 

(prepared staements)": adding the test case to close the bug
(the bug was fixed along with other conversion incompatibilities 
in 4.1.7)


tests/client_test.c:
  A test case for Bug#4172: "Floating point conversion loses precision 
  (prepared staements)"
  Fix memleak.
parent 7f3749c8

tests/client_test.c

+67 −0
Original line number Diff line number Diff line
@@ -11082,12 +11082,77 @@ static void test_bug6096() 
    free(bind[i].buffer);

  mysql_stmt_close(stmt);

  mysql_free_result(query_result);

  mysql_free_result(stmt_metadata);

  stmt_text= "drop table t1";

  rc= mysql_real_query(mysql, stmt_text, strlen(stmt_text));

  myquery(rc);

}





static void test_bug4172()

{

  MYSQL_STMT *stmt;

  MYSQL_BIND bind[3];

  const char *stmt_text;

  MYSQL_RES *res;

  MYSQL_ROW row;

  int rc;

  char f[100], d[100], e[100];

  long f_len, d_len, e_len;



  myheader("test_bug4172");



  mysql_query(mysql, "DROP TABLE IF EXISTS t1");

  mysql_query(mysql, "CREATE TABLE t1 (f float, d double, e decimal(10,4))");

  mysql_query(mysql, "INSERT INTO t1 VALUES (12345.1234, 123456.123456, "

                                            "123456.1234)");



  stmt= mysql_stmt_init(mysql);

  stmt_text= "SELECT f, d, e FROM t1";



  rc= mysql_stmt_prepare(stmt, stmt_text, strlen(stmt_text));

  check_execute(stmt, rc);

  rc= mysql_stmt_execute(stmt);

  check_execute(stmt, rc);



  bzero(bind, sizeof(bind));

  bind[0].buffer_type= MYSQL_TYPE_STRING;

  bind[0].buffer= f;

  bind[0].buffer_length= sizeof(f);

  bind[0].length= &f_len;

  bind[1].buffer_type= MYSQL_TYPE_STRING;

  bind[1].buffer= d;

  bind[1].buffer_length= sizeof(d);

  bind[1].length= &d_len;

  bind[2].buffer_type= MYSQL_TYPE_STRING;

  bind[2].buffer= e;

  bind[2].buffer_length= sizeof(e);

  bind[2].length= &e_len;



  mysql_stmt_bind_result(stmt, bind);



  mysql_stmt_store_result(stmt);

  rc= mysql_stmt_fetch(stmt);

  check_execute(stmt, rc);



  rc= mysql_real_query(mysql, stmt_text, strlen(stmt_text));

  myquery(rc);

  res= mysql_store_result(mysql);

  row= mysql_fetch_row(res);



  printf("Binary protocol: float=%s, double=%s, decimal(10,4)=%s\n",

         f, d, e);

  printf("Text protocol:   float=%s, double=%s, decimal(10,4)=%s\n",

         row[0], row[1], row[2]);



  DIE_UNLESS(!strcmp(f, row[0]) && !strcmp(d, row[1]) && !strcmp(e, row[2]));



  mysql_free_result(res);

  mysql_stmt_close(stmt);

}







/*

  Read and parse arguments and MySQL options from my.cnf

*/
@@ -11404,6 +11469,8 @@ int main(int argc, char **argv) 
    test_bug6046();         /* NATURAL JOIN transformation works in PS */

    test_bug6081();         /* test of mysql_create_db()/mysql_rm_db() */

    test_bug6096();         /* max_length for numeric columns */

    test_bug4172();         /* floating point conversions in libmysql */



    /*

      XXX: PLEASE RUN THIS PROGRAM UNDER VALGRIND AND VERIFY THAT YOUR TEST

      DOESN'T CONTAIN WARNINGS/ERRORS BEFORE YOU PUSH.