1#!./perl 2# 3# Tests for perl exit codes, playing with $?, etc... 4 5 6BEGIN { 7 chdir 't' if -d 't'; 8 @INC = qw(. ../lib); 9} 10 11# Run some code, return its wait status. 12sub run { 13 my($code) = shift; 14 $code = "\"" . $code . "\"" if $^O eq 'VMS'; #VMS needs quotes for this. 15 return system($^X, "-e", $code); 16} 17 18BEGIN { 19 # MacOS system() doesn't have good return value 20 $numtests = ($^O eq 'VMS') ? 16 : ($^O eq 'MacOS') ? 0 : 17; 21} 22 23require "test.pl"; 24plan(tests => $numtests); 25 26my $native_success = 0; 27 $native_success = 1 if $^O eq 'VMS'; 28 29if ($^O ne 'MacOS') { 30my $exit, $exit_arg; 31 32$exit = run('exit'); 33is( $exit >> 8, 0, 'Normal exit' ); 34is( $exit, $?, 'Normal exit $?' ); 35is( ${^CHILD_ERROR_NATIVE}, $native_success, 'Normal exit ${^CHILD_ERROR_NATIVE}' ); 36 37if ($^O ne 'VMS') { 38 my $posix_ok = eval { require POSIX; }; 39 my $wait_macros_ok = defined &POSIX::WIFEXITED; 40 41 $exit = run('exit 42'); 42 is( $exit >> 8, 42, 'Non-zero exit' ); 43 is( $exit, $?, 'Non-zero exit $?' ); 44 isnt( !${^CHILD_ERROR_NATIVE}, 0, 'Non-zero exit ${^CHILD_ERROR_NATIVE}' ); 45 SKIP: { 46 skip("No POSIX", 3) unless $posix_ok; 47 skip("No POSIX wait macros", 3) unless $wait_macros_ok; 48 ok(POSIX::WIFEXITED(${^CHILD_ERROR_NATIVE}), "WIFEXITED"); 49 ok(!POSIX::WIFSIGNALED(${^CHILD_ERROR_NATIVE}), "WIFSIGNALED"); 50 is(POSIX::WEXITSTATUS(${^CHILD_ERROR_NATIVE}), 42, "WEXITSTATUS"); 51 } 52 53 SKIP: { 54 skip("Skip signals and core dump tests on Win32", 7) if $^O eq 'MSWin32'; 55 56 $exit = run('kill 15, $$; sleep(1);'); 57 58 is( $exit & 127, 15, 'Term by signal' ); 59 ok( !($exit & 128), 'No core dump' ); 60 is( $? & 127, 15, 'Term by signal $?' ); 61 isnt( ${^CHILD_ERROR_NATIVE}, 0, 'Term by signal ${^CHILD_ERROR_NATIVE}' ); 62 SKIP: { 63 skip("No POSIX", 3) unless $posix_ok; 64 skip("No POSIX wait macros", 3) unless $wait_macros_ok; 65 ok(!POSIX::WIFEXITED(${^CHILD_ERROR_NATIVE}), "WIFEXITED"); 66 ok(POSIX::WIFSIGNALED(${^CHILD_ERROR_NATIVE}), "WIFSIGNALED"); 67 is(POSIX::WTERMSIG(${^CHILD_ERROR_NATIVE}), 15, "WTERMSIG"); 68 } 69 } 70 71} else { 72 73# On VMS, successful returns from system() are reported 0, VMS errors that 74# can not be translated to UNIX are reported as EVMSERR, which has a value 75# of 65535. Codes from 2 through 7 are assumed to be from non-compliant 76# VMS systems and passed through. Programs written to use _POSIX_EXIT() 77# codes like GNV will pass the numbers 2 through 255 encoded in the 78# C facility by multiplying the number by 8 and adding %x35A000 to it. 79# Perl will decode that number from children back to it's internal status. 80# 81# For native VMS status codes, success codes are odd numbered, error codes 82# are even numbered. The 3 LSBs of the code indicate if the success is 83# an informational message or the severity of the failure. 84# 85# Because the failure codes for the tests of the CLI facility status codes can 86# not be translated to UNIX error codes, they will be reported as EVMSERR, 87# even though Perl will exit with them having the VMS status codes. 88# 89# Note that this is testing the perl exit() routine, and not the VMS 90# DCL EXIT statement. 91# 92# The value %x1000000 has been added to the exit code to prevent the 93# status message from being sent to the STDOUT and STDERR stream. 94# 95# Double quotes are needed to pass these commands through DCL to PERL 96 97 $exit = run("exit 268632065"); # %CLI-S-NORMAL 98 is( $exit >> 8, 0, 'PERL success exit' ); 99 is( ${^CHILD_ERROR_NATIVE} & 7, 1, 'VMS success exit' ); 100 101 $exit = run("exit 268632067"); # %CLI-I-NORMAL 102 is( $exit >> 8, 0, 'PERL informational exit' ); 103 is( ${^CHILD_ERROR_NATIVE} & 7, 3, 'VMS informational exit' ); 104 105 $exit = run("exit 268632064"); # %CLI-W-NORMAL 106 is( $exit >> 8, 1, 'Perl warning exit' ); 107 is( ${^CHILD_ERROR_NATIVE} & 7, 0, 'VMS warning exit' ); 108 109 $exit = run("exit 268632066"); # %CLI-E-NORMAL 110 is( $exit >> 8, 2, 'Perl error exit' ); 111 is( ${^CHILD_ERROR_NATIVE} & 7, 2, 'VMS error exit' ); 112 113 $exit = run("exit 268632068"); # %CLI-F-NORMAL 114 is( $exit >> 8, 4, 'Perl fatal error exit' ); 115 is( ${^CHILD_ERROR_NATIVE} & 7, 4, 'VMS fatal exit' ); 116 117 $exit = run("exit 02015320012"); # POSIX exit code 1 118 is( $exit >> 8, 1, 'Posix exit code 1' ); 119 120 $exit = run("exit 02015323771"); # POSIX exit code 255 121 is( $exit >> 8 , 255, 'Posix exit code 255' ); 122} 123 124$exit_arg = 42; 125$exit = run("END { \$? = $exit_arg }"); 126 127# On VMS, in the child process the actual exit status will be SS$_ABORT, 128# or 44, which is what you get from any non-zero value of $? except for 129# 65535 that has been dePOSIXified by STATUS_UNIX_SET. If $? is set to 130# 65535 internally when there is a VMS status code that is valid, and 131# when Perl exits, it will set that status code. 132# 133# In this test on VMS, the child process exit with a SS$_ABORT, which 134# the parent stores in ${^CHILD_ERROR_NATIVE}. The SS$_ABORT code is 135# then translated to the UNIX code EINTR which has the value of 4 on VMS. 136# 137# This is complex because Perl translates internally generated UNIX 138# status codes to SS$_ABORT on exit, but passes through unmodified UNIX 139# status codes that exit() is called with by scripts. 140 141$exit_arg = (44 & 7) if $^O eq 'VMS'; 142 143is( $exit >> 8, $exit_arg, 'Changing $? in END block' ); 144} 145