;; Copyright 2006-2011, Matthew Welland.
;;
;; This program is made available under the GNU GPL version 2.0 or
;; greater. See the accompanying file COPYING for details.
;;
;; This program is distributed WITHOUT ANY WARRANTY; without even the
;; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;; PURPOSE.
;; (include "common.scm")
;; (include "megatest-version.scm")
(use sqlite3 srfi-1 posix regex regex-case srfi-69 base64 format readline apropos)
(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))
(declare (uses common))
(declare (uses megatest-version))
(declare (uses margs))
(declare (uses runs))
(declare (uses launch))
(declare (uses server))
(define *db* #f) ;; this is only for the repl, do not use in general!!!!
(include "common_records.scm")
(include "key_records.scm")
(include "db_records.scm")
(define help (conc "
Megatest, documentation at http://www.kiatoa.com/fossils/megatest
version " megatest-version "
license GPL, Copyright Matt Welland 2006-2011
Usage: megatest [options]
-h : this help
Process and test running
-runall : run all tests that are not state COMPLETED and status PASS,
CHECK or KILLED
-runtests tst1,tst2 ... : run tests
Run status updates (these require that you are in a test directory
and you have sourced the \"megatest.csh\" or
\"megatest.sh\" file.)
-step stepname
-test-status : set the state and status of a test (use :state and :status)
-setlog logfname : set the path/filename to the final log relative to the test
directory. may be used with -test-status
-set-toplog logfname : set the overall log for a suite of sub-tests
-summarize-items : for an itemized test create a summary html
-m comment : insert a comment for this test
Run data
-target key1/key2/... : run for key1, key2, etc.
-reqtarg key1/key2/... : run for key1, key2, etc. but key1/key2 must be in runconfig
:runname : required, name for this particular test run
:state : required if updating step state; e.g. start, end, completed
:status : required if updating step status; e.g. pass, fail, n/a
Values and record errors and warnings
-set-values : update or set values in the megatest db
:category : set the category field (optional)
:variable : set the variable name (optional)
:value : value measured (required)
:expected : value expected (required)
:tol : |value-expect| <= tol (required, can be <, >, >=, <= or number)
:units : name of the units for value, expected_value etc. (optional)
Arbitrary test data loading
-load-test-data : read test specific data for storage in the test_data table
from standard in. Each line is comma delimited with four
fields category,variable,value,comment
Queries
-list-runs patt : list runs matching pattern \"patt\", % is the wildcard
-testpatt patt : in list-runs show only these tests, % is the wildcard
-itempatt patt : in list-runs show only tests with items that match patt
-showkeys : show the keys used in this megatest setup
-test-paths targpatt : get the most recent test path(s) matching targpatt e.g. %/%...
returns list sorted by age ascending, see examples below
Misc
-force : override some checks
-remove-runs : remove the data for a run, requires all fields be specified
and :runname ,-testpatt and -itempatt
and -testpatt
-rerun FAIL,WARN... : re-run if called on a test that previously ran (nullified
if -keepgoing is also specified)
-rebuild-db : bring the database schema up to date
-rollup : fill run (set by :runname) with latest test(s) from
prior runs with same keys
-update-meta : update the tests metadata for all tests
-env2file fname : write the environment to fname.csh and fname.sh
-setvars VAR1=val1,VAR2=val2 : Add environment variables to a run NB// these are
overwritten by values set in config files.
-archive : archive tests, use -target, :runname, -itempatt and -testpatt
-server -|hostname : start the server (reduces contention on megatest.db), use
- to automatically figure out hostname
-repl : start a repl (useful for extending megatest)
Spreadsheet generation
-extract-ods fname.ods : extract an open document spreadsheet from the database
-pathmod path : insert path, i.e. path/runame/itempath/logfile.html
will clear the field if no rundir/testname/itempath/logfile
if it contains forward slashes the path will be converted
to windows style
Helpers (these only apply in test run mode)
-runstep stepname ... : take remaining params as comand and execute as stepname
log will be in stepname.log. Best to put command in quotes
-logpro file : with -exec apply logpro file to stepname.log, creates
stepname.html and sets log to same
If using make use stepname_logpro.log as your target
Examples
# Get test paths
megatest -test-paths -target ubuntu/n%/no% :runname w49% -testpatt test_mt%
Called as " (string-intersperse (argv) " ")))
;; -gui : start a gui interface
;; -config fname : override the runconfig file with fname
;; process args
(define remargs (args:get-args
(argv)
(list "-runtests" ;; run a specific test
"-config" ;; override the config file name
"-execute" ;; run the command encoded in the base64 parameter
"-step"
":runname"
"-target"
"-reqtarg"
":item"
":runname"
":state"
":status"
"-list-runs"
"-testpatt"
"-itempatt"
"-setlog"
"-set-toplog"
"-runstep"
"-logpro"
"-m"
"-rerun"
"-days"
"-rename-run"
"-to"
;; values and messages
":category"
":variable"
":value"
":expected"
":tol"
":units"
;; misc
"-server"
"-extract-ods"
"-pathmod"
"-env2file"
"-setvars"
"-debug" ;; for *verbosity* > 2
)
(list "-h"
"-force"
"-xterm"
"-showkeys"
"-test-status"
"-set-values"
"-load-test-data"
"-summarize-items"
"-gui"
;; misc
"-archive"
"-repl"
;; queries
"-test-paths" ;; get path(s) to a test, ordered by youngest first
"-runall" ;; run all tests
"-remove-runs"
"-keepgoing"
"-usequeue"
"-rebuild-db"
"-rollup"
"-update-meta"
"-v" ;; verbose 2, more than normal (normal is 1)
"-q" ;; quiet 0, errors/warnings only
)
args:arg-hash
0))
(if (args:get-arg "-h")
(begin
(print help)
(exit)))
(define *didsomething* #f)
;;======================================================================
;; Misc setup stuff
;;======================================================================
(set! *verbosity* (cond
((args:get-arg "-debug")(string->number (args:get-arg "-debug")))
((args:get-arg "-v") 2)
((args:get-arg "-q") 0)
(else 1)))
;;======================================================================
;; Misc general calls
;;======================================================================
(if (args:get-arg "-env2file")
(begin
(save-environment-as-files (args:get-arg "-env2file"))
(set! *didsomething* #t)))
;;======================================================================
;; Remove old run(s)
;;======================================================================
;; since several actions can be specified on the command line the removal
;; is done first
(define (remove-runs)
(cond
((not (args:get-arg ":runname"))
(debug:print 0 "ERROR: Missing required parameter for -remove-runs, you must specify the run name pattern with :runname patt")
(exit 2))
((not (args:get-arg "-testpatt"))
(debug:print 0 "ERROR: Missing required parameter for -remove-runs, you must specify the test pattern with -testpatt")
(exit 3))
((not (args:get-arg "-itempatt"))
(print "ERROR: Missing required parameter for -remove-runs, you must specify the items with -itempatt")
(exit 4))
((let ((db #f))
(if (not (setup-for-run))
(begin
(debug:print 0 print "Failed to setup, exiting")
(exit 1)))
(set! db (open-db))
(if (not (car *configinfo*))
(begin
(debug:print 0 "ERROR: Attempted to remove test(s) but run area config file not found")
(exit 1))
;; put test parameters into convenient variables
(runs:remove-runs db
(args:get-arg ":runname")
(args:get-arg "-testpatt")
(args:get-arg "-itempatt")))
(sqlite3:finalize! db)
(set! *didsomething* #t)))))
(if (args:get-arg "-remove-runs")
(general-run-call
"-remove-runs"
"remove runs"
(lambda (db target runname keys keynames keyvallst)
(remove-runs))))
;;======================================================================
;; Query runs
;;======================================================================
(if (args:get-arg "-list-runs")
(let* ((db (begin
(setup-for-run)
(open-db)))
(runpatt (args:get-arg "-list-runs"))
(testpatt (args:get-arg "-testpatt"))
(itempatt (args:get-arg "-itempatt"))
(runsdat (rdb:get-runs db runpatt #f #f '()))
(runs (db:get-rows runsdat))
(header (db:get-header runsdat))
(keys (rdb:get-keys db))
(keynames (map key:get-fieldname keys)))
;; Each run
(for-each
(lambda (run)
(debug:print 2 "Run: "
(string-intersperse (map (lambda (x)
(db:get-value-by-header run header x))
keynames) "/")
"/"
(db:get-value-by-header run header "runname"))
(let ((run-id (db:get-value-by-header run header "id")))
(let ((tests (rdb:get-tests-for-run db run-id testpatt itempatt '() '())))
;; Each test
(for-each
(lambda (test)
(format #t
" Test: ~25a State: ~15a Status: ~15a Runtime: ~5@as Time: ~22a Host: ~10a\n"
(conc (db:test-get-testname test)
(if (equal? (db:test-get-item-path test) "")
""
(conc "(" (db:test-get-item-path test) ")")))
(db:test-get-state test)
(db:test-get-status test)
(db:test-get-run_duration test)
(db:test-get-event_time test)
(db:test-get-host test))
(if (not (or (equal? (db:test-get-status test) "PASS")
(equal? (db:test-get-status test) "WARN")
(equal? (db:test-get-state test) "NOT_STARTED")))
(begin
(print " cpuload: " (db:test-get-cpuload test)
"\n diskfree: " (db:test-get-diskfree test)
"\n uname: " (db:test-get-uname test)
"\n rundir: " (db:test-get-rundir test)
)
;; Each test
(let ((steps (db:get-steps-for-test db (db:test-get-id test))))
(for-each
(lambda (step)
(format #t
" Step: ~20a State: ~10a Status: ~10a Time ~22a\n"
(db:step-get-stepname step)
(db:step-get-state step)
(db:step-get-status step)
(db:step-get-event_time step)))
steps)))))
tests))))
runs)
(set! *didsomething* #t)
))
;;======================================================================
;; full run
;;======================================================================
;; get lock in db for full run for this directory
;; for all tests with deps
;; walk tree of tests to find head tasks
;; add head tasks to task queue
;; add dependant tasks to task queue
;; add remaining tasks to task queue
;; for each task in task queue
;; if have adequate resources
;; launch task
;; else
;; put task in deferred queue
;; if still ok to run tasks
;; process deferred tasks per above steps
;; run all tests are are Not COMPLETED and PASS or CHECK
(if (args:get-arg "-runall")
(general-run-call
"-runall"
"run all tests"
(lambda (db target runname keys keynames keyvallst)
(runs:run-tests db
target
runname
(args:get-arg "-testpatt")
(args:get-arg "-itempatt")
user
(make-hash-table)))))
;;======================================================================
;; run one test
;;======================================================================
;; 1. find the config file
;; 2. change to the test directory
;; 3. update the db with "test started" status, set running host
;; 4. process launch the test
;; - monitor the process, update stats in the db every 2^n minutes
;; 5. as the test proceeds internally it calls megatest as each step is
;; started and completed
;; - step started, timestamp
;; - step completed, exit status, timestamp
;; 6. test phone home
;; - if test run time > allowed run time then kill job
;; - if cannot access db > allowed disconnect time then kill job
(if (args:get-arg "-runtests")
(general-run-call
"-runtests"
"run a test"
(lambda (db target runname keys keynames keyvallst)
(runs:run-tests db
target
runname
(args:get-arg "-runtests")
(args:get-arg "-itempatt")
user
(make-hash-table)))))
;;======================================================================
;; Start the server
;;======================================================================
(if (args:get-arg "-server")
(let* ((toppath (setup-for-run))
(db (if toppath (open-db) #f)))
(if db
(server:start db (args:get-arg "-server"))
(debug:print 0 "ERROR: Failed to setup for megatest"))))
;;======================================================================
;; Rollup into a run
;;======================================================================
(if (args:get-arg "-rollup")
(general-run-call
"-rollup"
"rollup tests"
(lambda (db target runname keys keynames keyvallst)
(runs:rollup-run db
keys
(keys->alist keys "na")
(args:get-arg ":runname")
user))))
;;======================================================================
;; Get paths to tests
;;======================================================================
;; Get test paths matching target, runname, testpatt, and itempatt
(if (args:get-arg "-test-paths")
;; if we are in a test use the MT_CMDINFO data
(if (getenv "MT_CMDINFO")
(let* ((startingdir (current-directory))
(cmdinfo (read (open-input-string (base64:base64-decode (getenv "MT_CMDINFO")))))
(testpath (assoc/default 'testpath cmdinfo))
(test-name (assoc/default 'test-name cmdinfo))
(runscript (assoc/default 'runscript cmdinfo))
(db-host (assoc/default 'db-host cmdinfo))
(run-id (assoc/default 'run-id cmdinfo))
(itemdat (assoc/default 'itemdat cmdinfo))
(db #f)
(state (args:get-arg ":state"))
(status (args:get-arg ":status"))
(target (args:get-arg "-target")))
(change-directory testpath)
(if (not target)
(begin
(debug:print 0 "ERROR: -target is required.")
(exit 1)))
(if (not (setup-for-run))
(begin
(debug:print 0 "Failed to setup, giving up on -test-paths, exiting")
(exit 1)))
(set! db (open-db))
(let* ((itempatt (args:get-arg "-itempatt"))
(keys (rdb:get-keys db))
(keynames (map key:get-fieldname keys))
(paths (db:test-get-paths-matching db keynames target)))
(set! *didsomething* #t)
(for-each (lambda (path)
(print path))
paths)))
;; else do a general-run-call
(general-run-call
"-test-paths"
"Get paths to tests"
(lambda (db target runname keys keynames keyvallst)
(let* ((itempatt (args:get-arg "-itempatt"))
(paths (db:test-get-paths-matching db keynames target)))
(for-each (lambda (path)
(print path))
paths))))))
;;======================================================================
;; Archive tests
;;======================================================================
;; Archive tests matching target, runname, testpatt, and itempatt
(if (args:get-arg "-archive")
;; if we are in a test use the MT_CMDINFO data
(if (getenv "MT_CMDINFO")
(let* ((startingdir (current-directory))
(cmdinfo (read (open-input-string (base64:base64-decode (getenv "MT_CMDINFO")))))
(testpath (assoc/default 'testpath cmdinfo))
(test-name (assoc/default 'test-name cmdinfo))
(runscript (assoc/default 'runscript cmdinfo))
(db-host (assoc/default 'db-host cmdinfo))
(run-id (assoc/default 'run-id cmdinfo))
(itemdat (assoc/default 'itemdat cmdinfo))
(db #f)
(state (args:get-arg ":state"))
(status (args:get-arg ":status"))
(target (args:get-arg "-target")))
(change-directory testpath)
(if (not target)
(begin
(debug:print 0 "ERROR: -target is required.")
(exit 1)))
(if (not (setup-for-run))
(begin
(debug:print 0 "Failed to setup, giving up on -archive, exiting")
(exit 1)))
(set! db (open-db))
(let* ((itempatt (args:get-arg "-itempatt"))
(keys (rdb:get-keys db))
(keynames (map key:get-fieldname keys))
(paths (db:test-get-paths-matching db keynames target)))
(set! *didsomething* #t)
(for-each (lambda (path)
(print path))
paths)))
;; else do a general-run-call
(general-run-call
"-test-paths"
"Get paths to tests"
(lambda (db target runname keys keynames keyvallst)
(let* ((itempatt (args:get-arg "-itempatt"))
(paths (db:test-get-paths-matching db keynames target)))
(for-each (lambda (path)
(print path))
paths))))))
;;======================================================================
;; Extract a spreadsheet from the runs database
;;======================================================================
(if (args:get-arg "-extract-ods")
(general-run-call
"-extract-ods"
"Make ods spreadsheet"
(lambda (db target runname keys keynames keyvallst)
(let ((outputfile (args:get-arg "-extract-ods"))
(runspatt (args:get-arg ":runname"))
(pathmod (args:get-arg "-pathmod"))
(keyvalalist (keys->alist keys "%")))
(debug:print 2 "Extract ods, outputfile: " outputfile " runspatt: " runspatt " keyvalalist: " keyvalalist)
(db:extract-ods-file db outputfile keyvalalist (if runspatt runspatt "%") pathmod)))))
;;======================================================================
;; execute the test
;; - gets called on remote host
;; - receives info from the -execute param
;; - passes info to steps via MT_CMDINFO env var (future is to use a dot file)
;; - gathers host info and
;;======================================================================
(if (args:get-arg "-execute")
(begin
(launch:execute (args:get-arg "-execute"))
(set! *didsomething* #t)))
(if (args:get-arg "-step")
(if (not (getenv "MT_CMDINFO"))
(begin
(debug:print 0 "ERROR: MT_CMDINFO env var not set, -step must be called *inside* a megatest invoked environment!")
(exit 5))
(let* ((step (args:get-arg "-step"))
(cmdinfo (read (open-input-string (base64:base64-decode (getenv "MT_CMDINFO")))))
(testpath (assoc/default 'testpath cmdinfo))
(test-name (assoc/default 'test-name cmdinfo))
(runscript (assoc/default 'runscript cmdinfo))
(db-host (assoc/default 'db-host cmdinfo))
(run-id (assoc/default 'run-id cmdinfo))
(itemdat (assoc/default 'itemdat cmdinfo))
(db #f)
(state (args:get-arg ":state"))
(status (args:get-arg ":status"))
(logfile (args:get-arg "-setlog")))
(change-directory testpath)
(if (not (setup-for-run))
(begin
(debug:print 0 "Failed to setup, exiting")
(exit 1)))
(set! db (open-db))
(if (and state status)
(rdb:teststep-set-status! db run-id test-name step state status itemdat (args:get-arg "-m") logfile)
(begin
(debug:print 0 "ERROR: You must specify :state and :status with every call to -step")
(exit 6)))
(sqlite3:finalize! db)
(set! *didsomething* #t))))
(if (or (args:get-arg "-setlog") ;; since setting up is so costly lets piggyback on -test-status
(args:get-arg "-set-toplog")
(args:get-arg "-test-status")
(args:get-arg "-set-values")
(args:get-arg "-load-test-data")
(args:get-arg "-runstep")
(args:get-arg "-summarize-items"))
(if (not (getenv "MT_CMDINFO"))
(begin
(debug:print 0 "ERROR: MT_CMDINFO env var not set, commands -test-status, -runstep and -setlog must be called *inside* a megatest environment!")
(exit 5))
(let* ((startingdir (current-directory))
(cmdinfo (read (open-input-string (base64:base64-decode (getenv "MT_CMDINFO")))))
(testpath (assoc/default 'testpath cmdinfo))
(test-name (assoc/default 'test-name cmdinfo))
(runscript (assoc/default 'runscript cmdinfo))
(db-host (assoc/default 'db-host cmdinfo))
(run-id (assoc/default 'run-id cmdinfo))
(itemdat (assoc/default 'itemdat cmdinfo))
(db #f)
(state (args:get-arg ":state"))
(status (args:get-arg ":status")))
(change-directory testpath)
(if (not (setup-for-run))
(begin
(debug:print 0 "Failed to setup, exiting")
(exit 1)))
(set! db (open-db))
(if (args:get-arg "-load-test-data")
(db:load-test-data db run-id test-name itemdat))
(if (args:get-arg "-setlog")
(test-set-log! db run-id test-name itemdat (args:get-arg "-setlog")))
(if (args:get-arg "-set-toplog")
(test-set-toplog! db run-id test-name (args:get-arg "-set-toplog")))
(if (args:get-arg "-summarize-items")
(tests:summarize-items db run-id test-name #t)) ;; do force here
(if (args:get-arg "-runstep")
(if (null? remargs)
(begin
(debug:print 0 "ERROR: nothing specified to run!")
(sqlite3:finalize! db)
(exit 6))
(let* ((stepname (args:get-arg "-runstep"))
(logprofile (args:get-arg "-logpro"))
(logfile (conc stepname ".log"))
(cmd (if (null? remargs) #f (car remargs)))
(params (if cmd (cdr remargs) '()))
(exitstat #f)
(shell (last (string-split (get-environment-variable "SHELL") "/")))
(redir (case (string->symbol shell)
((tcsh csh ksh) ">&")
((zsh bash sh ash) "2>&1 >")))
(fullcmd (conc "(" (string-intersperse
(cons cmd params) " ")
") " redir " " logfile)))
;; mark the start of the test
(rdb:teststep-set-status! db run-id test-name stepname "start" "n/a" itemdat (args:get-arg "-m") logfile)
;; close the db
(sqlite3:finalize! db)
;; run the test step
(debug:print 2 "INFO: Running \"" fullcmd "\"")
(change-directory startingdir)
(set! exitstat (system fullcmd)) ;; cmd params))
(set! *globalexitstatus* exitstat)
(change-directory testpath)
;; re-open the db
(set! db (open-db))
;; run logpro if applicable ;; (process-run "ls" (list "/foo" "2>&1" "blah.log"))
(if logprofile
(let* ((htmllogfile (conc stepname ".html"))
(oldexitstat exitstat)
(cmd (string-intersperse (list "logpro" logprofile htmllogfile "<" logfile ">" (conc stepname "_logpro.log")) " ")))
(debug:print 2 "INFO: running \"" cmd "\"")
(change-directory startingdir)
(set! exitstat (system cmd))
(set! *globalexitstatus* exitstat) ;; no necessary
(change-directory testpath)
(test-set-log! db run-id test-name itemdat htmllogfile)))
(rdb:teststep-set-status! db run-id test-name stepname "end" exitstat itemdat (args:get-arg "-m") logfile)
(sqlite3:finalize! db)
(if (not (eq? exitstat 0))
(exit 254)) ;; (exit exitstat) doesn't work?!?
;; open the db
;; mark the end of the test
)))
(if (or (args:get-arg "-test-status")
(args:get-arg "-set-values"))
(let ((newstatus (cond
((number? status) (if (equal? status 0) "PASS" "FAIL"))
((and (string? status)
(string->number status))(if (equal? (string->number status) 0) "PASS" "FAIL"))
(else status)))
;; transfer relevant keys into a hash to be passed to test-set-status!
;; could use an assoc list I guess.
(otherdata (let ((res (make-hash-table)))
(for-each (lambda (key)
(if (args:get-arg key)
(hash-table-set! res key (args:get-arg key))))
(list ":value" ":tol" ":expected" ":first_err" ":first_warn" ":units" ":category" ":variable"))
res)))
(if (and (args:get-arg "-test-status")
(or (not state)
(not status)))
(begin
(debug:print 0 "ERROR: You must specify :state and :status with every call to -test-status\n" help)
(sqlite3:finalize! db)
(exit 6)))
(test-set-status! db run-id test-name state newstatus itemdat (args:get-arg "-m") otherdata)))
(sqlite3:finalize! db)
(set! *didsomething* #t))))
(if (args:get-arg "-showkeys")
(let ((db #f)
(keys #f))
(if (not (setup-for-run))
(begin
(debug:print 0 "Failed to setup, exiting")
(exit 1)))
(set! db (open-db))
(set! keys (rdb:get-keys db))
(debug:print 1 "Keys: " (string-intersperse (map key:get-fieldname keys) ", "))
(sqlite3:finalize! db)
(set! *didsomething* #t)))
(if (args:get-arg "-gui")
(begin
(debug:print 0 "Look at the dashboard for now")
;; (megatest-gui)
(set! *didsomething* #t)))
;;======================================================================
;; Update the database schema on request
;;======================================================================
(if (args:get-arg "-rebuild-db")
(begin
(if (not (setup-for-run))
(begin
(debug:print 0 "Failed to setup, exiting")
(exit 1)))
;; now can find our db
(set! db (open-db))
(patch-db db)
(sqlite3:finalize! db)
(set! *didsomething* #t)))
;;======================================================================
;; Update the tests meta data from the testconfig files
;;
(if (args:get-arg "-update-meta")
(begin
(if (not (setup-for-run))
(begin
(debug:print 0 "Failed to setup, exiting")
(exit 1)))
;; now can find our db
(set! db (open-db))
(runs:update-all-test_meta db)
(sqlite3:finalize! db)
(set! *didsomething* #t)))
;;======================================================================
;; Start a repl
;;======================================================================
(if (args:get-arg "-repl")
(let* ((toppath (setup-for-run))
(db (if toppath (open-db) #f)))
(if db
(begin
(set! *db* db)
(import readline)
(import apropos)
(gnu-history-install-file-manager
(string-append
(or (get-environment-variable "HOME") ".") "/.megatest_history"))
(current-input-port (make-gnu-readline-port "megatest> "))
(repl)))))
;;======================================================================
;; Exit and clean up
;;======================================================================
(if (not *didsomething*)
(debug:print 0 help))
(if (not (eq? *globalexitstatus* 0))
(if (or (args:get-arg "-runtests")(args:get-arg "-runall"))
(begin
(debug:print 0 "NOTE: Subprocesses with non-zero exit code detected: " *globalexitstatus*)
(exit 0))
(case *globalexitstatus*
((0)(exit 0))
((1)(exit 1))
((2)(exit 2))
(else (exit 3)))))