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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| #!./perl | ||
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| use strict; | ||
| use warnings; | ||
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| use Scalar::Util (); | ||
| use Test::More (grep { /isbool/ } @Scalar::Util::EXPORT_FAIL) | ||
| ? (skip_all => 'isbool requires XS version') | ||
| : (tests => 15); | ||
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| Scalar::Util->import("isbool"); | ||
|
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| # basic constants | ||
| { | ||
| ok(isbool(!!0), 'false is boolean'); | ||
| ok(isbool(!!1), 'true is boolean'); | ||
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| ok(!isbool(0), '0 is not boolean'); | ||
| ok(!isbool(1), '1 is not boolean'); | ||
| ok(!isbool(""), '"" is not boolean'); | ||
| } | ||
|
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| # variables | ||
| { | ||
| my $falsevar = !!0; | ||
| my $truevar = !!1; | ||
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| ok(isbool($falsevar), 'false var is boolean'); | ||
| ok(isbool($truevar), 'true var is boolean'); | ||
|
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| my $str = "$truevar"; | ||
| my $num = $truevar + 0; | ||
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| ok(!isbool($str), 'stringified true is not boolean'); | ||
| ok(!isbool($num), 'numified true is not boolean'); | ||
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| ok(isbool($truevar), 'true var remains boolean after stringification and numification'); | ||
| } | ||
|
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| # aggregate members | ||
| { | ||
| my %hash = ( false => !!0, true => !!1 ); | ||
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| ok(isbool($hash{false}), 'false HELEM is boolean'); | ||
| ok(isbool($hash{true}), 'true HELEM is boolean'); | ||
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| # We won't test AELEM but it's likely to be the same | ||
| } | ||
|
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| { | ||
| my $var; | ||
| package Foo { sub TIESCALAR { bless {}, shift } sub FETCH { $var } } | ||
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| tie my $tied, "Foo"; | ||
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| $var = 1; | ||
| ok(!isbool($tied), 'tied var should not yet be boolean'); | ||
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| $var = !!1; | ||
| ok(isbool($tied), 'tied var should now be boolean'); | ||
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| my $copy = $tied; | ||
| ok(isbool($copy), 'copy of tied var should also be boolean'); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| #!./perl | ||
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| BEGIN { | ||
| chdir 't' if -d 't'; | ||
| require './test.pl'; | ||
| set_up_inc('../lib'); | ||
| } | ||
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| use strict; | ||
| use warnings; | ||
|
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| my $truevar = (5 == 5); | ||
| my $falsevar = (5 == 6); | ||
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| cmp_ok($truevar, '==', 1); | ||
| cmp_ok($truevar, 'eq', "1"); | ||
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| cmp_ok($falsevar, '==', 0); | ||
| cmp_ok($falsevar, 'eq', ""); | ||
|
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| { | ||
| # Check that boolean COW string buffer is safe to copy into new SVs and | ||
| # doesn't get corrupted by inplace mutations | ||
| my $x = $truevar; | ||
| $x =~ s/1/t/; | ||
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| cmp_ok($x, 'eq', "t"); | ||
| cmp_ok($truevar, 'eq', "1"); | ||
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| my $y = $truevar; | ||
| substr($y, 0, 1, "T"); | ||
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| cmp_ok($y, 'eq', "T"); | ||
| cmp_ok($truevar, 'eq', "1"); | ||
| } | ||
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| done_testing(); |