#!./perl
+BEGIN: {
+ chdir 't' if -d 't';
+ @INC = ('../lib');
+ require './test.pl';
+}
+
+# supress VMS whinging about bad execs.
+use vmsish qw(hushed);
+
$| = 1; # flush stdout
-if ($^O eq 'MSWin32') {
- # XXX the system tests could be written to use ./perl and so work on Win32
- print "1..0 # Skip: shh, win32\n";
- exit(0);
+$ENV{LC_ALL} = 'C'; # Forge English error messages.
+$ENV{LANGUAGE} = 'C'; # Ditto in GNU.
+
+my $Is_VMS = $^O eq 'VMS';
+
+plan(tests => 20);
+
+my $Perl = which_perl();
+
+my $exit;
+SKIP: {
+ skip("bug/feature of pdksh", 2) if $^O eq 'os2';
+
+ my $tnum = curr_test();
+ $exit = system qq{$Perl -le "print q{ok $tnum - interp system(EXPR)"}};
+ next_test();
+ is( $exit, 0, ' exited 0' );
+}
+
+my $tnum = curr_test();
+$exit = system qq{$Perl -le "print q{ok $tnum - split & direct system(EXPR)"}};
+next_test();
+is( $exit, 0, ' exited 0' );
+
+# On VMS you need the quotes around the program or it won't work.
+# On Unix its the opposite.
+my $quote = $Is_VMS ? '"' : '';
+$tnum = curr_test();
+$exit = system $Perl, '-le',
+ "${quote}print q{ok $tnum - system(PROG, LIST)}${quote}";
+next_test();
+is( $exit, 0, ' exited 0' );
+
+
+# Some basic piped commands. Some OS's have trouble with "helpfully"
+# putting newlines on the end of piped output. So we split this into
+# newline insensitive and newline sensitive tests.
+my $echo_out = `$Perl -e "print 'ok'" | $Perl -le "print <STDIN>"`;
+$echo_out =~ s/\n\n/\n/g;
+is( $echo_out, "ok\n", 'piped echo emulation');
+
+{
+ # here we check if extra newlines are going to be slapped on
+ # piped output.
+ local $TODO = 'VMS sticks newlines on everything' if $Is_VMS;
+
+ is( scalar `$Perl -e "print 'ok'"`,
+ "ok", 'no extra newlines on ``' );
+
+ is( scalar `$Perl -e "print 'ok'" | $Perl -e "print <STDIN>"`,
+ "ok", 'no extra newlines on pipes');
+
+ is( scalar `$Perl -le "print 'ok'" | $Perl -le "print <STDIN>"`,
+ "ok\n\n", 'doubled up newlines');
+
+ is( scalar `$Perl -e "print 'ok'" | $Perl -le "print <STDIN>"`,
+ "ok\n", 'extra newlines on inside pipes');
+
+ is( scalar `$Perl -le "print 'ok'" | $Perl -e "print <STDIN>"`,
+ "ok\n", 'extra newlines on outgoing pipes');
}
-print "1..8\n";
-if ($^O ne 'os2') {
- print "not ok 1\n" if system "echo ok \\1"; # shell interpreted
-}
-else {
- print "ok 1 # skipped: bug/feature of pdksh\n"; # shell interpreted
+is( system(qq{$Perl -e "exit 0"}), 0, 'Explicit exit of 0' );
+
+my $exit_one = $Is_VMS ? 4 << 8 : 1 << 8;
+is( system(qq{$Perl "-I../lib" -e "use vmsish qw(hushed); exit 1"}), $exit_one,
+ 'Explicit exit of 1' );
+
+
+$rc = system "lskdfj";
+unless( ok($rc == 255 << 8 or $rc == -1 or $rc == 256) ) {
+ print "# \$rc == $rc\n";
+}
+
+unless ( ok( $! == 2 or $! =~ /\bno\b.*\bfile/i or
+ $! == 13 or $! =~ /permission denied/i or
+ $! == 22 or $! =~ /invalid argument/ ) ) {
+ printf "# \$! eq %d, '%s'\n", $!, $!;
}
-print "not ok 2\n" if system "echo ok 2"; # split and directly called
-print "not ok 3\n" if system "echo", "ok", "3"; # directly called
-# these should probably be rewritten to match the examples in perlfunc.pod
-if (system "true") {print "not ok 4\n";} else {print "ok 4\n";}
-if ((system "/bin/sh -c 'exit 1'") != 256) { print "not "; }
-print "ok 5\n";
+is( `$Perl -le "print 'ok'"`, "ok\n", 'basic ``' );
+is( <<`END`, "ok\n", '<<`HEREDOC`' );
+$Perl -le "print 'ok'"
+END
+
-if ((system "lskdfj") == 255 << 8) {print "ok 6\n";} else {print "not ok 6\n";}
+TODO: {
+ my $tnum = curr_test();
+ if( $^O =~ /Win32/ ) {
+ print "not ok $tnum - exec failure doesn't terminate process # TODO Win32 exec failure waits for user input\n";
+ next_test;
+ last TODO;
+ }
-unless (exec "lskdjfalksdjfdjfkls") {print "ok 7\n";} else {print "not ok 7\n";}
+ ok( !exec("lskdjfalksdjfdjfkls"),
+ "exec failure doesn't terminate process");
+}
-exec "echo","ok","8";
+my $test = curr_test();
+exec $Perl, '-le', qq{${quote}print 'ok $test - exec PROG, LIST'${quote}};
+fail("This should never be reached if the exec() worked");