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|
use strict;
use warnings;
use Test::More tests => 52;
use UNIVERSAL::isa 'isa';
{
package Foo;
sub isa { 1 }
}
{
package Bar;
}
{
package Gorch;
sub isa
{
my ($self, $class) = @_;
$self->SUPER::isa($class) unless $class eq 'Glab';
}
}
{
package Baz;
sub isa
{
my ($self, $class) = @_;
UNIVERSAL::isa($self, $class) unless $class eq 'Glab';
}
}
my ($f, $b, $g, $x) = map { bless [], $_ } qw( Foo Bar Gorch Baz );
{
my $warning = '';
local $SIG{__WARN__} = sub { $warning = shift };
ok( !isa( undef, 'Foo' ), 'undef isa nothing' );
is( $warning, '', 'not warning by default' );
ok( isa( [], 'ARRAY' ), '[] is an array ref' );
is( $warning, '', 'not warning by default' );
$warning = '';
ok( isa( $b, 'Bar' ), 'bar is a Bar' );
is( $warning, '', 'not warning by default' );
$warning = '';
ok( isa( $f, 'Foo' ), 'foo is a Foo' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
$warning = '';
ok( !isa( $b, 'Zlap' ), 'bar is not Zlap' );
is( $warning, '', 'not warning by default' );
$warning = '';
ok( isa( $f, 'Zlap' ), 'neither is Foo' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
$warning = '';
ok( isa( $g, 'Gorch' ), 'Gorch is itself' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
$warning = '';
ok( !isa( $g, 'Zlap' ), 'gorch is not Zlap' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
$warning = '';
ok( isa( $g, 'Glab' ), '... it is dung' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
$warning = '';
ok( isa( $x, 'Baz' ), 'Baz is itself' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
$warning = '';
ok( !isa( $x, 'Zlap' ), 'baz is not Zlap' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
$warning = '';
ok( isa( $x, 'Glab' ), 'it is dung' );
like( $warning, qr/as a function.+basic.t/s, '... warning by default' );
}
{
use warnings 'UNIVERSAL::isa';
my $warning = '';
local $SIG{__WARN__} = sub { $warning = shift };
ok( !isa( undef, 'Foo' ), 'undef isa nothing' );
is( $warning, '', 'not warning by default' );
$warning = '';
ok( isa( {}, 'HASH' ), 'hash reference isa HASH' );
is( $warning, '', '... and no warning by default' );
$warning = '';
ok( isa( [], 'ARRAY' ), 'array reference isa ARRAY' );
is( $warning, '', '... and no warning by default' );
$warning = '';
ok( isa( sub {}, 'CODE' ), 'code reference isa CODE' );
is( $warning, '', '... and no warning by default' );
$warning = '';
ok( isa( \my $a, 'SCALAR' ), 'scalar reference isa SCALAR' );
is( $warning, '', '... and no warning by default' );
$warning = '';
ok( isa( qr//, 'Regexp' ), 'regexp reference isa Regexp' );
is( $warning, '', '... and no warning by default' );
$warning = '';
ok( isa( \local *FOO, 'GLOB' ), 'glob reference isa GLOB' );
is( $warning, '', '... and no warning by default' );
}
{
use warnings 'UNIVERSAL::isa';
UNIVERSAL::isa::->import( 'verbose' );
my $warning = '';
local $SIG{__WARN__} = sub { $warning = shift };
ok( !isa( undef, 'Foo' ), 'undef isa nothing' );
like( $warning, qr/Called.+as a function.+on invalid invocant.+basic.t/s,
'... warning in verbose mode' );
ok( isa( {}, 'HASH' ), 'hash reference isa HASH' );
like( $warning, qr/Called.+as a function.+reftyp.+basic.t/s,
'... warning in verbose mode' );
$warning = '';
ok( isa( [], 'ARRAY' ), 'array reference isa ARRAY' );
like( $warning, qr/Called.+as a function.+reftyp.+basic.t/s,
'... warning in verbose mode' );
$warning = '';
ok( isa( sub {}, 'CODE' ), 'code reference isa CODE' );
like( $warning, qr/Called.+as a function.+reftyp.+basic.t/s,
'... warning in verbose mode' );
$warning = '';
ok( isa( \my $a, 'SCALAR' ), 'scalar reference isa SCALAR' );
like( $warning, qr/Called.+as a function.+reftyp.+basic.t/s,
'... warning in verbose mode' );
$warning = '';
ok( isa( qr//, 'Regexp' ), 'regexp reference isa Regexp' );
like( $warning, qr/Called.+as a functio.+basic.t/s,
'... warning in verbose mode' );
$warning = '';
ok( isa( \local *FOO, 'GLOB' ), 'glob reference isa GLOB' );
like( $warning, qr/Called.+as a function.+reftyp.+basic.t/s,
'... warning in verbose mode' );
}
|
