t/all.t - metacpan.org

package SCALAR;

sub test { __PACKAGE__ }

our $VERSION = 0.01;

package ARRAY;

sub test { __PACKAGE__ }

our $VERSION = 0.01;

package HASH;

sub test { __PACKAGE__ }

our $VERSION = 0.01;

package CODE;

sub test { __PACKAGE__ }

our $VERSION = 0.01;

package Test::SCALAR;

sub test { lc shift }

package MyScalar;

sub test { __PACKAGE__ }

package MyDefault;

sub test { __PACKAGE__ }

package MyNamespace::SCALAR;

sub test { __PACKAGE__ }

package MyNamespace::ARRAY;

sub test { __PACKAGE__ }

package MyNamespace::HASH;

sub test { __PACKAGE__ }

package MyNamespace::CODE;

sub test { __PACKAGE__ }

package Test;

sub new { bless {}, ref $_[0] || $_[0]; }
sub test { 'rubicund' }

package main;

use strict;
use warnings;

use Test::More tests => 292;

BEGIN {
    chdir 't' if -d 't';
    unshift @INC, '../lib';
}

$| = 1;

sub add { my ($x, $y) = @_; $x + $y }

my $undef           = undef;
my $int             = 3;
my $float           = 3.1415927;
my $string          = 'Hello, world!';
my $array           = [ 0 .. 9 ];
my $hash            = { 0 .. 9 };
my $code            = \&add;
my $error           = qr{Can't (call|locate object) method "test" (without a|via) package\b};
my $string_error    = qr{Can't locate object method "test" via package "Hello, world!"};
my $unblessed_error = qr{Can't call method "test" on unblessed reference};
my $undef_error     = qr{Can't call method "[^"]+" on an undefined value};

# test no args
{
    use autobox;    # don't use use_ok(...) as this needs to be loaded at compile time

    my $object = Test->new();
    is(ref $object, 'Test', 'no args: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'no args: $object->test() - object not autoboxed');

    is(3->test(),    'SCALAR', 'no args: integer literal');
    is((-3)->test(), 'SCALAR', 'no args: negative integer literal');
    is((+3)->test(), 'SCALAR', 'no args: positive integer literal');
    is($int->test(), 'SCALAR', 'no args: $integer');

    is(3.1415927->test(),    'SCALAR', 'no args: float literal');
    is((-3.1415927)->test(), 'SCALAR', 'no args: negative float literal');
    is((+3.1415927)->test(), 'SCALAR', 'no args: positive float literal');
    is($float->test(),       'SCALAR', 'no args: $float');

    is('Hello, world'->test(), 'SCALAR', 'no args: single quoted string literal');
    is("Hello, world"->test(), 'SCALAR', 'no args: double quoted string literal');
    is($string->test(),        'SCALAR', 'no args: $string');

    is([ 0 .. 9 ]->test(), 'ARRAY', 'no args: ARRAY ref');
    is($array->test(),     'ARRAY', 'no args: $array');

    is({ 0 .. 9 }->test(), 'HASH', 'no args: HASH ref');
    is($hash->test(),      'HASH', 'no args: $hash');

    is((\&add)->test(), 'CODE', 'no args: CODE ref');
    is(sub { $_[0] + $_[1] }->test(), 'CODE', 'no args: ANON sub');
    is($code->test(), 'CODE', 'no args: $code');
}

# test override package
{
    use autobox SCALAR => 'MyScalar';

    my $object = Test->new();
    is(ref $object, 'Test', 'override package: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'override package: $object->test() - object not autoboxed');

    is(3->test(),    'MyScalar', 'override package: integer literal');
    is((-3)->test(), 'MyScalar', 'override package: negative integer literal');
    is((+3)->test(), 'MyScalar', 'override package: positive integer literal');
    is($int->test(), 'MyScalar', 'override package: $integer');

    is(3.1415927->test(),    'MyScalar', 'override package: float literal');
    is((-3.1415927)->test(), 'MyScalar', 'override package: negative float literal');
    is((+3.1415927)->test(), 'MyScalar', 'override package: positive float literal');
    is($float->test(),       'MyScalar', 'override package: $float');

    is('Hello, world'->test(), 'MyScalar', 'override package: single quoted string literal');
    is("Hello, world"->test(), 'MyScalar', 'override package: double quoted string literal');
    is($string->test(),        'MyScalar', 'override package: $string');
}

# test override namespace
{
    use autobox SCALAR => 'MyNamespace::';

    my $object = Test->new();
    is(ref $object, 'Test', 'override namespace: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'override namespace: $object->test() - object not autoboxed');

    is(3->test(),    'MyNamespace::SCALAR', 'override namespace: integer literal');
    is((-3)->test(), 'MyNamespace::SCALAR', 'override namespace: negative integer literal');
    is((+3)->test(), 'MyNamespace::SCALAR', 'override namespace: positive integer literal');
    is($int->test(), 'MyNamespace::SCALAR', 'override namespace: $int');

    is(3.1415927->test(),    'MyNamespace::SCALAR', 'override namespace: float literal');
    is((-3.1415927)->test(), 'MyNamespace::SCALAR', 'override namespace: negative float literal');
    is((+3.1415927)->test(), 'MyNamespace::SCALAR', 'override namespace: positive float literal');
    is($float->test(),       'MyNamespace::SCALAR', 'override namespace: $float');

    is('Hello, world'->test(), 'MyNamespace::SCALAR', 'override namespace: single quoted string literal');
    is("Hello, world"->test(), 'MyNamespace::SCALAR', 'override namespace: double quoted string literal');
    is($string->test(),        'MyNamespace::SCALAR', 'override namespace: $string');
}

# test default package
{
    use autobox DEFAULT => 'MyDefault';

    my $object = Test->new();
    is(ref $object, 'Test', 'default package: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'default package: $object->test() - object not autoboxed');

    is(3->test(),    'MyDefault', 'default package: integer literal');
    is((-3)->test(), 'MyDefault', 'default package: negative integer literal');
    is((+3)->test(), 'MyDefault', 'default package: positive integer literal');
    is($int->test(), 'MyDefault', 'default package: $int');

    is(3.1415927->test(),    'MyDefault', 'default package: float literal');
    is((-3.1415927)->test(), 'MyDefault', 'default package: negative float literal');
    is((+3.1415927)->test(), 'MyDefault', 'default package: positive float literal');
    is($float->test(),       'MyDefault', 'default package: $float');

    is('Hello, world'->test(), 'MyDefault', 'default package: single quoted string literal');
    is("Hello, world"->test(), 'MyDefault', 'default package: double quoted string literal');
    is($string->test(),        'MyDefault', 'default package: $string');

    is([ 0 .. 9 ]->test(), 'MyDefault', 'default package: ARRAY ref');
    is($array->test(),     'MyDefault', 'default package: $array');

    is({ 0 .. 9 }->test(), 'MyDefault', 'default package: HASH ref');
    is($hash->test(),      'MyDefault', 'default package: $hash');

    is((\&add)->test(), 'MyDefault', 'default package: CODE ref');
    is(sub { $_[0] + $_[1] }->test(), 'MyDefault', 'default package: ANON sub');
    is($code->test(), 'MyDefault', 'default package: $code');
}

# test default namespace
{
    use autobox DEFAULT => 'MyNamespace::';

    my $object = Test->new();
    is(ref $object, 'Test', 'default namespace: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'default namespace: $object->test() - object not autoboxed');

    is(3->test(),    'MyNamespace::SCALAR', 'default namespace: integer literal');
    is((-3)->test(), 'MyNamespace::SCALAR', 'default namespace: negative integer literal');
    is((+3)->test(), 'MyNamespace::SCALAR', 'default namespace: positive integer literal');
    is($int->test(), 'MyNamespace::SCALAR', 'default namespace: $int');

    is(3.1415927->test(),    'MyNamespace::SCALAR', 'default namespace: float literal');
    is((-3.1415927)->test(), 'MyNamespace::SCALAR', 'default namespace: negative float literal');
    is((+3.1415927)->test(), 'MyNamespace::SCALAR', 'default namespace: positive float literal');
    is($float->test(),       'MyNamespace::SCALAR', 'default namespace: $float');

    is('Hello, world'->test(), 'MyNamespace::SCALAR', 'default namespace: single quoted string literal');
    is("Hello, world"->test(), 'MyNamespace::SCALAR', 'default namespace: double quoted string literal');
    is($string->test(),        'MyNamespace::SCALAR', 'default namespace: $string');

    is([ 0 .. 9 ]->test(), 'MyNamespace::ARRAY', 'default namespace: ARRAY ref');
    is($array->test(),     'MyNamespace::ARRAY', 'default namespace: $array');

    is({ 0 .. 9 }->test(), 'MyNamespace::HASH', 'default namespace: HASH ref');
    is($hash->test(),      'MyNamespace::HASH', 'default namespace: $hash');

    is((\&add)->test(), 'MyNamespace::CODE', 'default namespace: CODE ref');
    is(sub { $_[0] + $_[1] }->test(), 'MyNamespace::CODE', 'default namespace: ANON sub');
    is($code->test(), 'MyNamespace::CODE', 'default namespace: $code');
}

# test default undef
{
    use autobox DEFAULT => undef;

    eval { $int->test() };
    ok(($@ && ($@ =~ /^$error/)), 'default undef: $int');

    eval { $float->test() };
    ok(($@ && ($@ =~ /^$error/)), 'default undef: $float');

    eval { $string->test() };
    ok(($@ && ($@ =~ /^$string_error/)), 'default undef: $string');

    eval { $array->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'default undef: $array');

    eval { $hash->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'default undef: $hash');

    eval { $code->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'default undef: $code');
}

# test all 1
{
    use autobox
      SCALAR  => 'MyScalar',         # specific package
      HASH    => undef,              # don't autobox
      DEFAULT => 'MyNamespace::';    # use MyNamespace:: namespace for CODE

    my $object = Test->new();
    is(ref $object, 'Test', 'test all 1: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'test all 1: $object->test() - object not autoboxed');

    is(3->test(),    'MyScalar', 'test all 1: integer literal');
    is((-3)->test(), 'MyScalar', 'test all 1: negative integer literal');
    is((+3)->test(), 'MyScalar', 'test all 1: positive integer literal');
    is($int->test(), 'MyScalar', 'test all 1: $int');

    is(3.1415927->test(),    'MyScalar', 'test all 1: float literal');
    is((-3.1415927)->test(), 'MyScalar', 'test all 1: negative float literal');
    is((+3.1415927)->test(), 'MyScalar', 'test all 1: positive float literal');
    is($float->test(),       'MyScalar', 'test all 1: $float');

    is('Hello, world'->test(), 'MyScalar', 'test all 1: single quoted string literal');
    is("Hello, world"->test(), 'MyScalar', 'test all 1: double quoted string literal');
    is($string->test(),        'MyScalar', 'test all 1: $string');

    eval { ({ 0 .. 9 })->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'test all 1: HASH ref: not autoboxed');

    is((\&add)->test(), 'MyNamespace::CODE', 'test all 1: CODE ref');
    is(sub { $_[0] + $_[1] }->test(), 'MyNamespace::CODE', 'test all 1: ANON sub');
    is($code->test(), 'MyNamespace::CODE', 'test all 1: $code');
}

# test all 2
{
    use autobox
      SCALAR  => 'MyScalar',     # specific package
      HASH    => undef,          # don't autobox
      DEFAULT => 'MyDefault';    # use MyDefault package for CODE

    my $object = Test->new();
    is(ref $object, 'Test', 'test all 2: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'test all 2: $object->test() - object not autoboxed');

    is(3->test(),    'MyScalar', 'test all 2: integer literal');
    is((-3)->test(), 'MyScalar', 'test all 2: negative integer literal');
    is((+3)->test(), 'MyScalar', 'test all 2: positive integer literal');
    is($int->test(), 'MyScalar', 'test all 2: $int');

    is(3.1415927->test(),    'MyScalar', 'test all 2: float literal');
    is((-3.1415927)->test(), 'MyScalar', 'test all 2: negative float literal');
    is((+3.1415927)->test(), 'MyScalar', 'test all 2: positive float literal');
    is($float->test(),       'MyScalar', 'test all 2: $float');

    is('Hello, world'->test(), 'MyScalar', 'test all 2: single quoted string literal');
    is("Hello, world"->test(), 'MyScalar', 'test all 2: double quoted string literal');
    is($string->test(),        'MyScalar', 'test all 2: $string');

    eval { ({ 0 .. 9 })->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'test all 2: HASH ref: not autoboxed');

    is((\&add)->test(), 'MyDefault', 'test all 2: CODE ref');
    is(sub { $_[0] + $_[1] }->test(), 'MyDefault', 'test all 2: ANON sub');
    is($code->test(), 'MyDefault', 'test all 2: $code');
}

# test all 3
{
    use autobox
      SCALAR  => 'MyScalar',    # specific package
      HASH    => undef,         # don't autobox
      DEFAULT => 'CODE';        # use CODE package for CODE

    my $object = Test->new();
    is(ref $object, 'Test', 'test all 3: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'test all 3: $object->test() - object not autoboxed');

    is(3->test(),    'MyScalar', 'test all 3: integer literal');
    is((-3)->test(), 'MyScalar', 'test all 3: negative integer literal');
    is((+3)->test(), 'MyScalar', 'test all 3: positive integer literal');
    is($int->test(), 'MyScalar', 'test all 3: $int');

    is(3.1415927->test(),    'MyScalar', 'test all 3: float literal');
    is((-3.1415927)->test(), 'MyScalar', 'test all 3: negative float literal');
    is((+3.1415927)->test(), 'MyScalar', 'test all 3: positive float literal');
    is($float->test(),       'MyScalar', 'test all 3: $float');

    is('Hello, world'->test(), 'MyScalar', 'test all 3: single quoted string literal');
    is("Hello, world"->test(), 'MyScalar', 'test all 3: double quoted string literal');
    is($string->test(),        'MyScalar', 'test all 3: $string');

    eval { ({ 0 .. 9 })->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'test all 3: HASH ref: not autoboxed');

    is((\&add)->test(), 'CODE', 'test all 3: CODE ref');
    is(sub { $_[0] + $_[1] }->test(), 'CODE', 'test all 3: ANON sub');
    is($code->test(), 'CODE', 'test all 3: $code');
}

# test all 4
{
    use autobox
      SCALAR  => 'MyScalar',    # specific package
      DEFAULT => undef;         # don't autobox ARRAY, HASH or CODE

    my $object = Test->new();
    is(ref $object, 'Test', 'test all 4: Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'test all 4: $object->test() - object not autoboxed');

    is(3->test(),    'MyScalar', 'test all 4: integer literal');
    is((-3)->test(), 'MyScalar', 'test all 4: negative integer literal');
    is((+3)->test(), 'MyScalar', 'test all 4: positive integer literal');
    is($int->test(), 'MyScalar', 'test all 4: $int');

    is(3.1415927->test(),    'MyScalar', 'test all 4: float literal');
    is((-3.1415927)->test(), 'MyScalar', 'test all 4: negative float literal');
    is((+3.1415927)->test(), 'MyScalar', 'test all 4: positive float literal');
    is($float->test(),       'MyScalar', 'test all 4: $float');

    is('Hello, world'->test(), 'MyScalar', 'test all 4: single quoted string literal');
    is("Hello, world"->test(), 'MyScalar', 'test all 4: double quoted string literal');
    is($string->test(),        'MyScalar', 'test all 4: $string');

    eval { ({ 0 .. 9 })->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'test all 4: HASH ref: not autoboxed');

    eval { (\&add)->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'test all 4: CODE ref: not autoboxed');

    eval { sub { $_[0] + $_[1] }->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'test all 4: ANON sub: not autoboxed');

    eval { $code->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'test all 4: $code: not autoboxed');
}

# test autobox not used
{
    eval { $int->test() };
    ok(($@ && ($@ =~ /^$error/)), 'autobox not used: $int');

    eval { $float->test() };
    ok(($@ && ($@ =~ /^$error/)), 'autobox not used: $float');

    eval { $string->test() };
    ok(($@ && ($@ =~ /^$string_error/)), 'autobox not used: $string');

    eval { $array->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'autobox not used: $array');

    eval { $hash->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'autobox not used: $hash');

    eval { $code->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'autobox not used: $code');
}

# test no autobox
{
    use autobox;

    no autobox;

    eval { $int->test() };
    ok(($@ && ($@ =~ /^$error/)), 'no autobox: $int');

    eval { $float->test() };
    ok(($@ && ($@ =~ /^$error/)), 'no autobox: $float');

    eval { $string->test() };
    ok(($@ && ($@ =~ /^$string_error/)), 'no autobox: $string');

    eval { $array->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'no autobox: $array');

    eval { $hash->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'no autobox: $hash');

    eval { $code->test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), 'no autobox: $code');
}

# test nested
{
    use autobox;

    my $object = Test->new();
    is(ref $object, 'Test', 'nested (outer): Test->new() - bareword not autoboxed');

    my $result = $object->test();
    is($result, 'rubicund', 'nested (outer): $object->test() - object not autoboxed');

    is(3->test(),    'SCALAR', 'nested (outer): integer literal');
    is((-3)->test(), 'SCALAR', 'nested (outer): negative integer literal');
    is((+3)->test(), 'SCALAR', 'nested (outer): positive integer literal');
    is($int->test(), 'SCALAR', 'nested (outer): $integer');

    {
        use autobox DEFAULT => 'MyNamespace::';

        is('Hello, world'->test(), 'SCALAR', 'nested (inner): single quoted string literal');
        is("Hello, world"->test(), 'SCALAR', 'nested (inner): double quoted string literal');
        is($string->test(),        'SCALAR', 'nested (inner): $string');
        is([ 0 .. 9 ]->test(),     'ARRAY',  'nested (inner): ARRAY ref');
        is($array->test(),         'ARRAY',  'nested (inner): $array');

        ok('Hello, world'->autobox_class->isa('SCALAR'), 'nested (inner): single quoted string literal isa(OUTER)');
        ok("Hello, world"->autobox_class->isa('SCALAR'), 'nested (inner): double quoted string literal isa(OUTER)');
        ok($string->autobox_class->isa('SCALAR'),        'nested (inner): $string isa(OUTER)');
        ok([ 0 .. 9 ]->autobox_class->isa('ARRAY'),      'nested (inner): ARRAY ref isa(OUTER)');
        ok($array->autobox_class->isa('ARRAY'),          'nested (inner): $array isa(OUTER)');

        ok('Hello, world'->autobox_class->isa('MyNamespace::SCALAR'), 'nested (inner): single quoted string literal isa(INNER)');
        ok("Hello, world"->autobox_class->isa('MyNamespace::SCALAR'), 'nested (inner): double quoted string literal isa(INNER)');
        ok($string->autobox_class->isa('MyNamespace::SCALAR'),        'nested (inner): $string isa(INNER)');
        ok([ 0 .. 9 ]->autobox_class->isa('MyNamespace::ARRAY'),      'nested (inner): ARRAY ref isa(INNER)');
        ok($array->autobox_class->isa('MyNamespace::ARRAY'),          'nested (inner): $array isa(INNER)');
    }

    is('Hello, world'->autobox_class->isa('MyNamespace::SCALAR'), '', 'nested (outer): single quoted string literal !isa(INNER)');
    is("Hello, world"->autobox_class->isa('MyNamespace::SCALAR'), '', 'nested (outer): double quoted string literal !isa(INNER)');
    is($string->autobox_class->isa('MyNamespace::SCALAR'),        '', 'nested (outer): $string !isa(INNER)');
    is([ 0 .. 9 ]->autobox_class->isa('MyNamespace::ARRAY'),      '', 'nested (outer): ARRAY ref !isa(INNER)');
    is($array->autobox_class->isa('MyNamespace::ARRAY'),          '', 'nested (outer): $array !isa(INNER)');

    is({ 0 .. 9 }->test(), 'HASH', 'nested (outer): HASH ref');
    is($hash->test(),      'HASH', 'nested (outer): $hash');

    is((\&add)->test(), 'CODE', 'nested (outer): CODE ref');
    is(sub { $_[0] + $_[1] }->test(), 'CODE', 'nested (outer): ANON sub');
    is($code->test(), 'CODE', 'nested (outer): $code');
}

# test can
{
    use autobox;

    is(3->autobox_class->can('test'),    \&SCALAR::test, 'can: integer literal');
    is((-3)->autobox_class->can('test'), \&SCALAR::test, 'can: negative integer literal');
    is((+3)->autobox_class->can('test'), \&SCALAR::test, 'can: positive integer literal');
    is($int->autobox_class->can('test'), \&SCALAR::test, 'can: $integer');

    is(3.1415927->autobox_class->can('test'),    \&SCALAR::test, 'can: float literal');
    is((-3.1415927)->autobox_class->can('test'), \&SCALAR::test, 'can: negative float literal');
    is((+3.1415927)->autobox_class->can('test'), \&SCALAR::test, 'can: positive float literal');
    is($float->autobox_class->can('test'),       \&SCALAR::test, 'can: $float');

    is('Hello, world'->autobox_class->can('test'), \&SCALAR::test, 'can: single quoted string literal');
    is("Hello, world"->autobox_class->can('test'), \&SCALAR::test, 'can: double quoted string literal');
    is($string->autobox_class->can('test'),        \&SCALAR::test, 'can: $string');

    is([ 0 .. 9 ]->autobox_class->can('test'), \&ARRAY::test, 'can: ARRAY ref');
    is($array->autobox_class->can('test'),     \&ARRAY::test, 'can: $array');

    is({ 0 .. 9 }->autobox_class->can('test'), \&HASH::test, 'can: HASH ref');
    is($hash->autobox_class->can('test'),      \&HASH::test, 'can: $hash');

    is((\&add)->autobox_class->can('test'), \&CODE::test, 'can: CODE ref');
    is(sub { $_[0] + $_[1] }->autobox_class->can('test'), \&CODE::test, 'can: ANON sub');
    is($code->autobox_class->can('test'), \&CODE::test, 'can: $code');
}

# test isa: also ensures isa() isn't simply
# returning true unconditionally
{
    use autobox;

    ok(3->autobox_class->isa('SCALAR'),    'isa SCALAR: integer literal');
    ok(3->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: integer literal');
    is(3->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: integer literal');

    ok((-3)->autobox_class->isa('SCALAR'),    'isa SCALAR: negative integer literal');
    ok((-3)->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: negative integer literal');
    is((-3)->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: negative integer literal');

    ok((+3)->autobox_class->isa('SCALAR'),    'isa SCALAR: positive integer literal');
    ok((+3)->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: positive integer literal');
    is((+3)->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: positive integer literal');

    ok($int->autobox_class->isa('SCALAR'),    'isa SCALAR: $integer');
    ok($int->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: $integer');
    is($int->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: $integer');

    ok(3.1415927->autobox_class->isa('SCALAR'),    'isa SCALAR: float literal');
    ok(3.1415927->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: float literal');
    is(3.1415927->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: float literal');

    ok((-3.1415927)->autobox_class->isa('SCALAR'),    'isa SCALAR: negative float literal');
    ok((-3.1415927)->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: negative float literal');
    is((-3.1415927)->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: negative float literal');

    ok((+3.1415927)->autobox_class->isa('SCALAR'),    'isa SCALAR: positive float literal');
    ok((+3.1415927)->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: positive float literal');
    is((+3.1415927)->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: positive float literal');

    ok($float->autobox_class->isa('SCALAR'),    'isa SCALAR: $float');
    ok($float->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: $float');
    is($float->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: $float');

    ok('Hello, world'->autobox_class->isa('SCALAR'),    'isa SCALAR: single quoted string literal');
    ok('Hello, world'->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: single quoted string literal');
    is('Hello, world'->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: single quoted string literal');

    ok("Hello, world"->autobox_class->isa('SCALAR'),    'isa SCALAR: double quoted string literal');
    ok("Hello, world"->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: double quoted string literal');
    is("Hello, world"->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: double quoted string literal');

    ok($string->autobox_class->isa('SCALAR'),    'isa SCALAR: $string');
    ok($string->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: $string');
    is($string->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: $string');

    ok([ 0 .. 9 ]->autobox_class->isa('ARRAY'),     'isa ARRAY: ARRAY ref');
    ok([ 0 .. 9 ]->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: ARRAY ref');
    is([ 0 .. 9 ]->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: ARRAY ref');

    ok($array->autobox_class->isa('ARRAY'),     'isa ARRAY: $array');
    ok($array->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: $array');
    is($array->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: $array');

    ok({ 0 .. 9 }->autobox_class->isa('HASH'),      'isa HASH: HASH ref');
    ok({ 0 .. 9 }->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: HASH ref');
    is({ 0 .. 9 }->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: HASH ref');

    ok($hash->autobox_class->isa('HASH'),      'isa HASH: $hash');
    ok($hash->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: $hash');
    is($hash->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: $hash');

    ok((\&add)->autobox_class->isa('CODE'),      'isa CODE: CODE ref');
    ok((\&add)->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: CODE ref');
    is((\&add)->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: CODE ref');

    ok(sub { $_[0] + $_[1] }->autobox_class->isa('CODE'), 'isa CODE: ANON sub');
    ok(sub { $_[0] + $_[1] }->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: ANON sub');
    is(sub { $_[0] + $_[1] }->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: ANON sub');

    ok($code->autobox_class->isa('CODE'),      'isa CODE: $code');
    ok($code->autobox_class->isa('UNIVERSAL'), 'isa UNIVERSAL: $code');
    is($code->autobox_class->isa('UNKNOWN'), '', 'isa UNKNOWN: $code');
}

# test undef: by default, undef shouldn't be autoboxed...
{
    use autobox;

    eval { undef->test() };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef: undef->test()');

    eval { $undef->test() };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef: $undef->test()');

    eval { undef->autobox_class->isa('SCALAR') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef: undef->autobox_class->isa(...)');

    eval { $undef->autobox_class->isa('SCALAR') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef: $undef->autobox_class->isa(...)');

    eval { undef->autobox_class->can('test') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef: undef->autobox_class->can(...)');

    eval { $undef->autobox_class->can('test') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef: $undef->autobox_class->can(...)');
}

# test undef 2: not even if DEFAULT is specified
{
    use autobox DEFAULT => 'SCALAR';

    eval { undef->test() };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef with DEFAULT: undef->test()');

    eval { $undef->test() };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef with DEFAULT: $undef->test()');

    eval { undef->autobox_class->isa('SCALAR') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef with DEFAULT: undef->autobox_class->isa(...)');

    eval { $undef->autobox_class->isa('SCALAR') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef with DEFAULT: $undef->autobox_class->isa(...)');

    eval { undef->autobox_class->can('test') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef with DEFAULT: undef->autobox_class->can(...)');

    eval { $undef->autobox_class->can('test') };
    ok(($@ && ($@ =~ /^$undef_error/)), 'undef with DEFAULT: $undef->autobox_class->can(...)');
}

# test undef: but undef support can be enabled
{
    use autobox UNDEF => 'MyDefault';
    is(undef->test(),  'MyDefault', 'handle undef: undef');
    is($undef->test(), 'MyDefault', 'handle undef: $undef');
}

# verify expected behaviour when autobox isn't enabled (workaround for a %^H bug)
{
    use autobox_scope_1;
    eval { autobox_scope_1::test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), '[]->test() raises an exception in a required module when autobox is not used');
}

# make sure behaviour is the same when autobox is enabled (workaround for a %^H bug)
{
    use autobox;
    use autobox_scope_2;
    eval { autobox_scope_2::test() };
    ok(($@ && ($@ =~ /^$unblessed_error/)), '[]->test() raises an exception in a required module when autobox is used');
}

# make sure enterscope/leavescope have popped the stack back so that the default op_method_named is restored
(my $isa_error = $error) =~ s/test/autobox_class/;
eval { 3->autobox_class->isa('SCALAR') };
ok(($@ && ($@ =~ /^$isa_error/)), "3->autobox_class->isa('SCALAR') raises an exception outside a lexical scope in which autobox is loaded");

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