| 1 | #!./perl
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| 2 | #
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| 3 | # Tests for Perl run-time environment variable settings
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| 4 | #
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| 5 | # $PERL5OPT, $PERL5LIB, etc.
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| 6 |
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| 7 | BEGIN {
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| 8 | chdir 't' if -d 't';
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| 9 | @INC = '../lib';
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| 10 | require Config; import Config;
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| 11 | unless ($Config{'d_fork'}) {
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| 12 | print "1..0 # Skip: no fork\n";
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| 13 | exit 0;
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| 14 | }
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| 15 | }
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| 16 |
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| 17 | use Test;
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| 18 |
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| 19 | plan tests => 17;
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| 20 |
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| 21 | my $STDOUT = './results-0';
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| 22 | my $STDERR = './results-1';
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| 23 | my $PERL = $ENV{PERL} || './perl';
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| 24 | my $FAILURE_CODE = 119;
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| 25 |
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| 26 | delete $ENV{PERLLIB};
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| 27 | delete $ENV{PERL5LIB};
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| 28 | delete $ENV{PERL5OPT};
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| 29 |
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| 30 | # Run perl with specified environment and arguments returns a list.
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| 31 | # First element is true if Perl's stdout and stderr match the
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| 32 | # supplied $stdout and $stderr argument strings exactly.
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| 33 | # second element is an explanation of the failure
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| 34 | sub runperl {
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| 35 | local *F;
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| 36 | my ($env, $args, $stdout, $stderr) = @_;
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| 37 |
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| 38 | unshift @$args, '-I../lib';
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| 39 |
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| 40 | $stdout = '' unless defined $stdout;
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| 41 | $stderr = '' unless defined $stderr;
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| 42 | local %ENV = %ENV;
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| 43 | delete $ENV{PERLLIB};
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| 44 | delete $ENV{PERL5LIB};
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| 45 | delete $ENV{PERL5OPT};
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| 46 | my $pid = fork;
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| 47 | return (0, "Couldn't fork: $!") unless defined $pid; # failure
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| 48 | if ($pid) { # parent
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| 49 | my ($actual_stdout, $actual_stderr);
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| 50 | wait;
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| 51 | return (0, "Failure in child.\n") if ($?>>8) == $FAILURE_CODE;
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| 52 |
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| 53 | open F, "< $STDOUT" or return (0, "Couldn't read $STDOUT file");
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| 54 | { local $/; $actual_stdout = <F> }
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| 55 | open F, "< $STDERR" or return (0, "Couldn't read $STDERR file");
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| 56 | { local $/; $actual_stderr = <F> }
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| 57 |
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| 58 | if ($actual_stdout ne $stdout) {
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| 59 | return (0, "Stdout mismatch: expected [$stdout], saw [$actual_stdout]");
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| 60 | } elsif ($actual_stderr ne $stderr) {
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| 61 | return (0, "Stderr mismatch: expected [$stderr], saw [$actual_stderr]");
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| 62 | } else {
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| 63 | return 1; # success
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| 64 | }
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| 65 | } else { # child
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| 66 | for my $k (keys %$env) {
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| 67 | $ENV{$k} = $env->{$k};
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| 68 | }
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| 69 | open STDOUT, "> $STDOUT" or exit $FAILURE_CODE;
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| 70 | open STDERR, "> $STDERR" or it_didnt_work();
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| 71 | { exec $PERL, @$args }
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| 72 | it_didnt_work();
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| 73 | }
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| 74 | }
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| 75 |
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| 76 |
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| 77 | sub it_didnt_work {
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| 78 | print STDOUT "IWHCWJIHCI\cNHJWCJQWKJQJWCQW\n";
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| 79 | exit $FAILURE_CODE;
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| 80 | }
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| 81 |
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| 82 | sub try {
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| 83 | my ($success, $reason) = runperl(@_);
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| 84 | $reason =~ s/\n/\\n/g if defined $reason;
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| 85 | ok( !!$success, 1, $reason );
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| 86 | }
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| 87 |
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| 88 | # PERL5OPT Command-line options (switches). Switches in
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| 89 | # this variable are taken as if they were on
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| 90 | # every Perl command line. Only the -[DIMUdmtw]
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| 91 | # switches are allowed. When running taint
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| 92 | # checks (because the program was running setuid
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| 93 | # or setgid, or the -T switch was used), this
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| 94 | # variable is ignored. If PERL5OPT begins with
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| 95 | # -T, tainting will be enabled, and any
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| 96 | # subsequent options ignored.
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| 97 |
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| 98 | try({PERL5OPT => '-w'}, ['-e', 'print $::x'],
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| 99 | "",
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| 100 | qq{Name "main::x" used only once: possible typo at -e line 1.\nUse of uninitialized value in print at -e line 1.\n});
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| 101 |
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| 102 | try({PERL5OPT => '-Mstrict'}, ['-e', 'print $::x'],
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| 103 | "", "");
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| 104 |
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| 105 | try({PERL5OPT => '-Mstrict'}, ['-e', 'print $x'],
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| 106 | "",
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| 107 | qq{Global symbol "\$x" requires explicit package name at -e line 1.\nExecution of -e aborted due to compilation errors.\n});
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| 108 |
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