which_perl: if File::Spec fails, assume "./" and hope for the best.

[p5sagit/p5-mst-13.2.git] / t / test.pl

diff --git a/t/test.pl b/t/test.pl
index 90e7ed5..5a81d54 100644 (file)
--- a/t/test.pl
+++ b/t/test.pl
@@ -15,22 +15,22 @@ sub plan {
        my %plan = @_;
        $n = $plan{tests}; 
     }
-    print "1..$n\n";
+    print STDOUT "1..$n\n";
     $planned = $n;
 }
 
 END {
     my $ran = $test - 1;
     if (defined $planned && $planned != $ran) {
-       print "# Looks like you planned $planned tests but ran $ran.\n";
+       print STDOUT "# Looks like you planned $planned tests but ran $ran.\n";
     }
 }
 
 sub skip_all {
     if (@_) {
-       print "1..0 - @_\n";
+       print STDOUT "1..0 - @_\n";
     } else {
-       print "1..0\n";
+       print STDOUT "1..0\n";
     }
     exit(0);
 }
@@ -47,15 +47,15 @@ sub _ok {
     }
 
     $out .= " # TODO $TODO" if $TODO;
-    print "$out\n";
+    print STDOUT "$out\n";
 
     unless ($pass) {
-       print "# Failed $where\n";
+       print STDOUT "# Failed $where\n";
     }
 
     # Ensure that the message is properly escaped.
-    print map { /^#/ ? "$_\n" : "# $_\n" } 
-          map { split /\n/ } @mess if @mess;
+    print STDOUT map { /^#/ ? "$_\n" : "# $_\n" } 
+                 map { split /\n/ } @mess if @mess;
 
     $test++;
 
@@ -127,6 +127,10 @@ sub fail {
     _ok(0, _where(), @_);
 }
 
+sub curr_test {
+    return $test;
+}
+
 sub next_test {
     $test++
 }
@@ -137,7 +141,7 @@ sub skip {
     my $why = shift;
     my $n    = @_ ? shift : 1;
     for (1..$n) {
-       print "ok $test # skip: $why\n";
+        print STDOUT "ok $test # skip: $why\n";
         $test++;
     }
     local $^W = 0;
@@ -223,6 +227,11 @@ sub runperl {
        $runperl .= qq( "$args{progfile}");
     }
     if (defined $args{stdin}) {
+        # so we don't try to put literal newlines and crs onto the
+        # command line.
+        $args{stdin} =~ s/\n/\\n/g;
+        $args{stdin} =~ s/\r/\\r/g;
+
        if ($is_mswin || $is_netware || $is_vms) {
            $runperl = qq{$^X -e "print qq(} .
                $args{stdin} . q{)" | } . $runperl;
@@ -240,11 +249,62 @@ sub runperl {
     if ($args{verbose}) {
        my $runperldisplay = $runperl;
        $runperldisplay =~ s/\n/\n\#/g;
-       print "# $runperldisplay\n";
+       print STDOUT "# $runperldisplay\n";
     }
     my $result = `$runperl`;
     $result =~ s/\n\n/\n/ if $is_vms; # XXX pipes sometimes double these
     return $result;
 }
 
+
+sub BAILOUT {
+    print STDOUT "Bail out! @_\n";
+    exit;
+}
+
+
+# A way to display scalars containing control characters and Unicode.
+sub display {
+    map { join("", map { $_ > 255 ? sprintf("\\x{%x}", $_) : chr($_) =~ /[[:cntrl:]]/ ? sprintf("\\%03o", $_) : chr($_) } unpack("U*", $_)) } @_;
+}
+
+
+# A somewhat safer version of the sometimes wrong $^X.
+my $Perl;
+sub which_perl {
+    unless (defined $Perl) {
+       $Perl = $^X;
+       
+       my $exe;
+       eval "require Config; Config->import";
+       if ($@) {
+           warn "test.pl had problems loading Config: $@";
+           $exe = '';
+       } else {
+           $exe = $Config{_exe};
+       }
+       
+       # This doesn't absolutize the path: beware of future chdirs().
+       # We could do File::Spec->abs2rel() but that does getcwd()s,
+       # which is a bit heavyweight to do here.
+       
+       if ($Perl =~ /^perl\Q$exe\E$/i) {
+           my $perl = "perl$exe";
+           eval "require File::Spec";
+           if ($@) {
+               warn "test.pl had problems loading File::Spec: $@";
+               $Perl = "./$perl";
+           } else {
+               $Perl = File::Spec->catfile(File::Spec->curdir(), $perl);
+           }
+       }
+       
+       warn "which_perl: cannot find $Perl from $^X" unless -f $Perl;
+       
+       # For subcommands to use.
+       $ENV{PERLEXE} = $Perl;
+    }
+    return $Perl;
+}
+
 1;