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[perl5.git] / lib / constant.t

diff --git a/lib/constant.t b/lib/constant.t
index 1f1d0be..10560c9 100644 (file)
--- a/lib/constant.t
+++ b/lib/constant.t
@@ -1,20 +1,22 @@
-#!./perl
+#!./perl -T
 
 BEGIN {
-    chdir 't' if -d 't';
-    @INC = '../lib';
+    if ($ENV{PERL_CORE}) {
+        chdir 't' if -d 't';
+        @INC = '../lib';
+    }
 }
 
 use warnings;
-use vars qw{ @warnings };
+use vars qw{ @warnings $fagwoosh $putt $kloong};
 BEGIN {                                # ...and save 'em for later
     $SIG{'__WARN__'} = sub { push @warnings, @_ }
 }
-END { print STDERR @warnings }
+END { @warnings && print STDERR join "\n- ", "accumulated warnings:", @warnings }
 
 
 use strict;
-use Test::More tests => 75;
+use Test::More tests => 95;
 my $TB = Test::More->builder;
 
 BEGIN { use_ok('constant'); }
@@ -78,13 +80,6 @@ use constant MESS    => q('"'\\"'"\\);
 is MESS, q('"'\\"'"\\);
 is length(MESS), 8;
 
-use constant TRAILING  => '12 cats';
-{
-    no warnings 'numeric';
-    cmp_ok TRAILING, '==', 12;
-}
-is TRAILING, '12 cats';
-
 use constant LEADING   => " \t1234";
 cmp_ok LEADING, '==', 1234;
 is LEADING, " \t1234";
@@ -110,7 +105,7 @@ cmp_ok E2BIG, '==', 7;
 # text may vary, so we can't test much better than this.
 cmp_ok length(E2BIG), '>', 6;
 
-is @warnings, 0 or diag join "\n", "unexpected warning", @warnings;
+is @warnings, 0 or diag join "\n- ", "unexpected warning:", @warnings;
 @warnings = ();                # just in case
 undef Π
 ok @warnings && ($warnings[0] =~ /Constant sub.* undefined/) or
@@ -120,15 +115,16 @@ shift @warnings;
 is @warnings, 0, "unexpected warning";
 
 my $curr_test = $TB->current_test;
-use constant CSCALAR   => \"ok 37\n";
-use constant CHASH     => { foo => "ok 38\n" };
-use constant CARRAY    => [ undef, "ok 39\n" ];
+use constant CSCALAR   => \"ok 35\n";
+use constant CHASH     => { foo => "ok 36\n" };
+use constant CARRAY    => [ undef, "ok 37\n" ];
 use constant CCODE     => sub { "ok $_[0]\n" };
 
-print ${+CSCALAR};
-print CHASH->{foo};
-print CARRAY->[1];
-print CCODE->($curr_test+4);
+my $output = $TB->output ;
+print $output ${+CSCALAR};
+print $output CHASH->{foo};
+print $output CARRAY->[1];
+print $output CCODE->($curr_test+4);
 
 $TB->current_test($curr_test+4);
 
@@ -178,6 +174,7 @@ ok $constant::declared{'Other::IN_OTHER_PACK'};
 @warnings = ();
 eval q{
     no warnings;
+    #local $^W if $] < 5.006;
     use warnings 'constant';
     use constant 'BEGIN' => 1 ;
     use constant 'INIT' => 1 ;
@@ -193,9 +190,9 @@ eval q{
     use constant 'ENV' => 1 ;
     use constant 'INC' => 1 ;
     use constant 'SIG' => 1 ;
+    use constant 'UNITCHECK' => 1;
 };
 
-is @warnings, 15 ;
 my @Expected_Warnings = 
   (
    qr/^Constant name 'BEGIN' is a Perl keyword at/,
@@ -213,10 +210,46 @@ my @Expected_Warnings =
    qr/^Constant name 'ENV' is forced into package main:: at/,
    qr/^Constant name 'INC' is forced into package main:: at/,
    qr/^Constant name 'SIG' is forced into package main:: at/,
+   qr/^Constant name 'UNITCHECK' is a Perl keyword at/,
 );
+
+unless ($] > 5.009) {
+    # Remove the UNITCHECK warning
+    pop @Expected_Warnings;
+    # But keep the count the same
+    push @Expected_Warnings, qr/^$/;
+    push @warnings, "";
+}
+
+# when run under "make test"
+if (@warnings == 16) {
+    push @warnings, "";
+    push @Expected_Warnings, qr/^$/;
+}
+# when run directly: perl -wT -Ilib t/constant.t
+elsif (@warnings == 17) {
+    splice @Expected_Warnings, 1, 0, 
+        qr/^Prototype mismatch: sub main::BEGIN \(\) vs none at/;
+}
+# when run directly under 5.6.2: perl -wT -Ilib t/constant.t
+elsif (@warnings == 15) {
+    splice @Expected_Warnings, 1, 1;
+    push @warnings, "", "";
+    push @Expected_Warnings, qr/^$/, qr/^$/;
+}
+else {
+    my $rule = " -" x 20;
+    diag "/!\\ unexpected case: ", scalar @warnings, " warnings\n$rule\n";
+    diag map { "  $_" } @warnings;
+    diag $rule, $/;
+}
+
+is @warnings, 17;
+
 for my $idx (0..$#warnings) {
     like $warnings[$idx], $Expected_Warnings[$idx];
 }
+
 @warnings = ();
 
 
@@ -242,3 +275,76 @@ is THREE**3, SPIT->(@{+FAMILY}**3);
     };
     ok( $@ eq '' );
 }
+
+sub slotch ();
+
+{
+    my @warnings;
+    local $SIG{'__WARN__'} = sub { push @warnings, @_ };
+    eval 'use constant slotch => 3; 1' or die $@;
+
+    is ("@warnings", "", "No warnings if a prototype exists");
+
+    my $value = eval 'slotch';
+    is ($@, '');
+    is ($value, 3);
+}
+
+sub zit;
+
+{
+    my @warnings;
+    local $SIG{'__WARN__'} = sub { push @warnings, @_ };
+    eval 'use constant zit => 4; 1' or die $@;
+
+    # empty prototypes are reported differently in different versions
+    my $no_proto = $] < 5.008004 ? "" : ": none";
+
+    is(scalar @warnings, 1, "1 warning");
+    like ($warnings[0], qr/^Prototype mismatch: sub main::zit$no_proto vs \(\)/,
+         "about the prototype mismatch");
+
+    my $value = eval 'zit';
+    is ($@, '');
+    is ($value, 4);
+}
+
+$fagwoosh = 'geronimo';
+$putt = 'leutwein';
+$kloong = 'schlozhauer';
+
+{
+    my @warnings;
+    local $SIG{'__WARN__'} = sub { push @warnings, @_ };
+    eval 'use constant fagwoosh => 5; 1' or die $@;
+
+    is ("@warnings", "", "No warnings if the typeglob exists already");
+
+    my $value = eval 'fagwoosh';
+    is ($@, '');
+    is ($value, 5);
+
+    my @value = eval 'fagwoosh';
+    is ($@, '');
+    is_deeply (\@value, [5]);
+
+    eval 'use constant putt => 6, 7; 1' or die $@;
+
+    is ("@warnings", "", "No warnings if the typeglob exists already");
+
+    @value = eval 'putt';
+    is ($@, '');
+    is_deeply (\@value, [6, 7]);
+
+    eval 'use constant "klong"; 1' or die $@;
+
+    is ("@warnings", "", "No warnings if the typeglob exists already");
+
+    $value = eval 'klong';
+    is ($@, '');
+    is ($value, undef);
+
+    @value = eval 'klong';
+    is ($@, '');
+    is_deeply (\@value, []);
+}