WL#1420 convert NIST test for mysql

Test cases using common object (database,user,table,..) names could probably
  destroy customer data, when connecting to an already running server.
  
  This Changeset contains an auxiliary routine  include/testdb_only.inc" which
  should be sourced by tests doing such dangerous things. 
  The test case will get a "[skipped]" when the environment variable 
  USE_RUNNING_SERVER is not 0 .
  The modified mysql-test-run.sh sets USE_RUNNING_SERVER to 0, when 
  the "mysql-test-run" starts its own server, aka there was no "--extern"
  option.


mysql-test/mysql-test-run.sh:
  If mysql-test-run spawns the server by itself, USE_RUNNING_SERVER will be set to 0 instead of "".
      If the option "--extern" was detected, USE_RUNNING_SERVER will be set to 1 instead of "1".
      Several comparisons have to be changed
           [ -z "$USE_RUNNING_SERVER" ] --> [ $USE_RUNNING_SERVER -eq 0 ]
           [ -n "$USE_RUNNING_SERVER" ] --> [ $USE_RUNNING_SERVER -eq 1 ]
      USE_RUNNING_SERVER will be exported.

mysql-test/mysql-test-run.sh

@@ -224,7 +224,7 @@ EXTRA_MASTER_OPT=""
 EXTRA_MYSQL_TEST_OPT=""
 EXTRA_MYSQLDUMP_OPT=""
 EXTRA_MYSQLBINLOG_OPT=""
-USE_RUNNING_SERVER=""
+USE_RUNNING_SERVER=0
 USE_NDBCLUSTER=""
 USE_RUNNING_NDBCLUSTER=""
 DO_GCOV=""
@@ -255,7 +255,7 @@ NDBD_EXTRA_OPTS=
 while test $# -gt 0; do
   case "$1" in
     --embedded-server) USE_EMBEDDED_SERVER=1 USE_MANAGER=0 NO_SLAVE=1 ; \
-      USE_RUNNING_SERVER="" RESULT_EXT=".es" TEST_MODE="embedded" ;;
+      USE_RUNNING_SERVER=0 RESULT_EXT=".es" TEST_MODE="embedded" ;;
     --user=*) DBUSER=`$ECHO "$1" | $SED -e "s;--user=;;"` ;;
     --force)  FORCE=1 ;;
     --timer)  USE_TIMER=1 ;;
@@ -265,8 +265,8 @@ while test $# -gt 0; do
       MASTER_MYSQLD=`$ECHO "$1" | $SED -e "s;--master-binary=;;"` ;;
     --slave-binary=*)
       SLAVE_MYSQLD=`$ECHO "$1" | $SED -e "s;--slave-binary=;;"` ;;
-    --local)   USE_RUNNING_SERVER="" ;;
-    --extern)  USE_RUNNING_SERVER="1" ;;
+    --local)   USE_RUNNING_SERVER=0 ;;
+    --extern)  USE_RUNNING_SERVER=1 ;;
     --with-ndbcluster)
       USE_NDBCLUSTER="--ndbcluster" ;;
     --ndb-connectstring=*)
@@ -303,7 +303,7 @@ while test $# -gt 0; do
     --no-manager | --skip-manager) USE_MANAGER=0 ;;
     --manager)
      USE_MANAGER=1
-     USE_RUNNING_SERVER=
+     USE_RUNNING_SERVER=0
      ;;
     --start-and-exit)
      START_AND_EXIT=1
@@ -372,7 +372,7 @@ while test $# -gt 0; do
       EXTRA_SLAVE_MYSQLD_OPT="$EXTRA_SLAVE_MYSQLD_OPT --gdb"
       # This needs to be checked properly
       # USE_MANAGER=1
-      USE_RUNNING_SERVER=""
+      USE_RUNNING_SERVER=0
       ;;
     --client-gdb )
       if [ x$BINARY_DIST = x1 ] ; then
@@ -385,7 +385,7 @@ while test $# -gt 0; do
     --manual-gdb )
       DO_GDB=1
       MANUAL_GDB=1
-      USE_RUNNING_SERVER=""
+      USE_RUNNING_SERVER=0
       EXTRA_MASTER_MYSQLD_OPT="$EXTRA_MASTER_MYSQLD_OPT --gdb"
       EXTRA_SLAVE_MYSQLD_OPT="$EXTRA_SLAVE_MYSQLD_OPT --gdb"
       ;;
@@ -394,7 +394,7 @@ while test $# -gt 0; do
 	$ECHO "Note: you will get more meaningful output on a source distribution compiled with debugging option when running tests with --ddd option"
       fi
       DO_DDD=1
-      USE_RUNNING_SERVER=""
+      USE_RUNNING_SERVER=0
       EXTRA_MASTER_MYSQLD_OPT="$EXTRA_MASTER_MYSQLD_OPT --gdb"
       EXTRA_SLAVE_MYSQLD_OPT="$EXTRA_SLAVE_MYSQLD_OPT --gdb"
       ;;
@@ -412,7 +412,7 @@ while test $# -gt 0; do
       EXTRA_SLAVE_MYSQLD_OPT="$EXTRA_SLAVE_MYSQLD_OPT --skip-safemalloc --skip-bdb"
       SLEEP_TIME_AFTER_RESTART=10
       SLEEP_TIME_FOR_DELETE=60
-      USE_RUNNING_SERVER=""
+      USE_RUNNING_SERVER=0
       if test "$1" = "--valgrind-all"
       then
         VALGRIND="$VALGRIND -v --show-reachable=yes"
@@ -627,9 +627,9 @@ fi
 
 if [ -z "$1" ]
 then
-   USE_RUNNING_SERVER=""
+   USE_RUNNING_SERVER=0
 fi
-if [ -n "$USE_RUNNING_SERVER" ]
+if [ $USE_RUNNING_SERVER -eq 1 ]
 then
    MASTER_MYSOCK=$LOCAL_SOCKET;
    DBUSER=${DBUSER:-test}
@@ -801,7 +801,7 @@ report_stats () {
         $ECHO "http://www.mysql.com/doc/en/MySQL_test_suite.html"
     fi
 
-    if test -z "$USE_RUNNING_SERVER"
+    if [ $USE_RUNNING_SERVER -eq 0 ]
     then
 
     # Report if there was any fatal warnings/errors in the log files
@@ -1511,7 +1511,7 @@ run_testcase ()
    done
  fi
 
- if [ -z "$USE_RUNNING_SERVER" ] ;
+ if [ $USE_RUNNING_SERVER -eq 0 ] ;
  then
    if [ -f $master_opt_file ] ;
    then
@@ -1655,7 +1655,7 @@ run_testcase ()
 	if [ x$FORCE != x1 ] ; then
 	 $ECHO "Aborting: $tname failed in $TEST_MODE mode. To continue, re-run with '--force'."
 	 $ECHO
-         if [ -z "$DO_GDB" ] && [ -z "$USE_RUNNING_SERVER" ] && \
+         if [ -z "$DO_GDB" ] && [ $USE_RUNNING_SERVER -eq 0 ] && \
 	    [ -z "$DO_DDD" ] && [ -z "$USE_EMBEDDED_SERVER" ]
 	 then
 	   mysql_stop
@@ -1664,7 +1664,7 @@ run_testcase ()
 	 exit 1
 	fi
 	FAILED_CASES="$FAILED_CASES $tname"
-        if [ -z "$DO_GDB" ] && [ -z "$USE_RUNNING_SERVER" ] && \
+        if [ -z "$DO_GDB" ] && [ $USE_RUNNING_SERVER -eq 0 ] && \
 	   [ -z "$DO_DDD" ] && [ -z "$USE_EMBEDDED_SERVER" ]
 	then
 	  mysql_restart
@@ -1683,7 +1683,7 @@ run_testcase ()
 [ "$DO_GCOV" ] && gcov_prepare
 [ "$DO_GPROF" ] && gprof_prepare
 
-if [ -z "$USE_RUNNING_SERVER" ]
+if [ $USE_RUNNING_SERVER -eq 0 ]
 then
   if [ -z "$FAST_START" ]
   then
@@ -1744,6 +1744,9 @@ fi
 
 $ECHO  "Starting Tests"
 
+# Some test cases need USE_RUNNING_SERVER
+export USE_RUNNING_SERVER
+
 #
 # This can probably be deleted
 #
@@ -1816,7 +1819,7 @@ fi
 $ECHO $DASH72
 $ECHO
 
-if [ -z "$DO_GDB" ] && [ -z "$USE_RUNNING_SERVER" ] && [ -z "$DO_DDD" ]
+if [ -z "$DO_GDB" ] && [ $USE_RUNNING_SERVER -eq 0 ] && [ -z "$DO_DDD" ]
 then
     mysql_stop
 fi