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# Test the new "object" behaviour.
# This tests:
# * Copy literals, don't use read-only scalars.
# * User-defined booleans
# ** Correct object name in user-defined booleans
# ** Copy literals and user-defined booleans interplay
# ** Deletion of user-defined booleans
# * Detect hash collisions
use FindBin '$Bin';
use lib "$Bin";
use JPT;
# ____ _ _ _ _
# / ___|___ _ __ _ _ | (_) |_ ___ _ __ __ _| |___
# | | / _ \| '_ \| | | | | | | __/ _ \ '__/ _` | / __|
# | |__| (_) | |_) | |_| | | | | || __/ | | (_| | \__ \
# \____\___/| .__/ \__, | |_|_|\__\___|_| \__,_|_|___/
# |_| |___/
#
my $jp = JSON::Parse->new ();
$jp->copy_literals (1);
my $stuff = '{"hocus":true,"pocus":false,"focus":null}';
my $out = $jp->run ($stuff);
eval {
$out->{pocus} = "bad city";
};
ok (! $@, "Can modify literals without error");
$jp->copy_literals (0);
my $stuff2 = '{"hocus":true,"pocus":false,"focus":null}';
my $out2 = $jp->run ($stuff);
eval {
$out2->{pocus} = "bad city";
};
ok ($@, "Can't modify literals without error");
note ($@);
# User-defined booleans
package Ba::Bi::Bu::Be::Bo;
# https://metacpan.org/source/MAKAMAKA/JSON-PP-2.27300/lib/JSON/PP.pm#L1390
$Ba::Bi::Bu::Be::Bo::true = do { bless \(my $dummy = 1), "JSON::PP::Boolean" };
$Ba::Bi::Bu::Be::Bo::false = do { bless \(my $dummy = 0), "JSON::PP::Boolean" };
$Ba::Bi::Bu::Be::Bo::null = do { bless \(my $dummy), "JSON::PP::Boolean" };
sub true {$Ba::Bi::Bu::Be::Bo::true;}
sub false {$Ba::Bi::Bu::Be::Bo::false;}
sub null {$Ba::Bi::Bu::Be::Bo::null;}
1;
package main;
# $jpub = j-son p-arser with u-ser b-ooleans
my $jpub = JSON::Parse->new ();
my $jpub1 = $jpub->run ($stuff);
eval {
$jpub1->{hocus} = "bad city";
};
ok ($@, "got error altering literals with default JSON::Parse object");
# Use the same things all the people on CPAN do, switching off the
# warnings.
$jpub->set_true ($Ba::Bi::Bu::Be::Bo::true);
$jpub->no_warn_literals (1);
$jpub->set_false ($Ba::Bi::Bu::Be::Bo::false);
$jpub->no_warn_literals (0);
$jpub->set_null ($Ba::Bi::Bu::Be::Bo::null);
my $jpub2 = $jpub->run ($stuff);
eval {
$jpub2->{hocus} = "bad city";
};
ok (! $@, "Values are not read-only with user-defined true/false values");
my $jpub3 = $jpub->run ($stuff);
like (ref $jpub3->{hocus}, qr/JSON::PP::Boolean/, "true value correct type");
like (ref $jpub3->{pocus}, qr/JSON::PP::Boolean/, "false value correct type");
like (ref $jpub3->{focus}, qr/JSON::PP::Boolean/, "null value correct type");
# Now test the same thing after switching on copy_literals.
$jpub->no_warn_literals (1);
$jpub->copy_literals (1);
$jpub->no_warn_literals (0);
my $jpub4 = $jpub->run ($stuff);
like (ref $jpub4->{hocus}, qr/JSON::PP::Boolean/, "true value correct type even with copy-literals");
like (ref $jpub4->{pocus}, qr/JSON::PP::Boolean/, "false value correct type even with copy-literals");
like (ref $jpub4->{focus}, qr/JSON::PP::Boolean/, "null value correct type even with copy-literals");
# Now delete all our user-defined booleans
$jpub->delete_true ();
$jpub->delete_false ();
$jpub->delete_null ();
# Test the objects have gone.
my $jpub5 = $jpub->run ($stuff);
unlike (ref $jpub5->{hocus}, qr/JSON::PP::Boolean/, "User true deleted");
unlike (ref $jpub5->{pocus}, qr/JSON::PP::Boolean/, "User false deleted");
unlike (ref $jpub5->{focus}, qr/JSON::PP::Boolean/, "User null deleted");
# Now test that copy-literals is still working.
my $jpub6 = $jpub->run ($stuff);
eval {
$jpub6->{hocus} = "bad city";
};
ok (! $@, "Values are not read-only, copy literals still works");
# Finally switch off copy-literals and check that things are back to
# the default behaviour.
$jpub->copy_literals (0);
my $jpub7 = $jpub->run ($stuff);
unlike (ref $jpub7->{hocus}, qr/JSON::PP::Boolean/, "User true deleted");
unlike (ref $jpub7->{pocus}, qr/JSON::PP::Boolean/, "User false deleted");
unlike (ref $jpub7->{focus}, qr/JSON::PP::Boolean/, "User null deleted");
eval {
$jpub7->{hocus} = "bad city";
};
ok ($@, "Values are read-only again");
# Check it's the right error, "Modification of a readonly value".
like ($@, qr/Modification/, "Error message looks good");
note ($@);
# Check that this doesn't make a warning, we want the user to be able
# to set "null" to "undef".
my $warning;
$SIG{__WARN__} = sub { $warning = "@_"; };
$jpub->set_true (undef);
ok ($warning, "Warning on setting true to non-true value");
$jpub->set_true (0);
ok ($warning, "Warning on setting true to non-true value");
$jpub->set_true ('');
ok ($warning, "Warning on setting true to non-true value");
$warning = undef;
$jpub->set_false (undef);
ok (! $warning, "no warning when setting user-defined false");
$warning = undef;
$jpub->set_false (0);
ok (! $warning, "no warning when setting user-defined false");
$warning = undef;
$jpub->set_false ('');
ok (! $warning, "no warning when setting user-defined false");
$warning = undef;
# https://www.youtube.com/watch?v=g4ouPGGLI6Q
$jpub->set_false ('Yodeadodoyodeadodoyodeadodoyodeadodoyodeadodoyodeadodoyo-bab-baaaaa Ahhhhhh-aaahhhh-aaaaaa-aaaaAAA! Ohhhhhh-ooohhh-oooooo-oooOOO!');
ok ($warning, "warning when setting user-defined false to a true value");
note ($warning);
$warning = undef;
$jpub->set_null (undef);
$jpub->set_null (0);
$jpub->set_null ('');
ok (! $warning, "no warning when setting user-defined null");
# ____ _ _ _ _ _ _
# | _ \ ___| |_ ___ ___| |_ ___ ___ | | (_)___(_) ___ _ __ ___
# | | | |/ _ \ __/ _ \/ __| __| / __/ _ \| | | / __| |/ _ \| '_ \/ __|
# | |_| | __/ || __/ (__| |_ | (_| (_) | | | \__ \ | (_) | | | \__ \
# |____/ \___|\__\___|\___|\__| \___\___/|_|_|_|___/_|\___/|_| |_|___/
#
#
my $stuff3 = '{"hocus":1,"pocus":2,"hocus":3,"focus":4}';
my $jp3 = JSON::Parse->new ();
eval {
$jp3->run ($stuff3);
};
ok (!$@, "Did not detect collision in default setting");
$jp3->detect_collisions (1);
eval {
$jp3->run ($stuff3);
};
ok ($@, "Detected collision");
note ($@);
$jp3->detect_collisions (0);
eval {
$jp3->run ($stuff3);
};
ok (!$@, "Did not detect collision after reset to 0");
SKIP: {
eval "require 5.14;";
if ($@) {
skip "diagnostics_hash requires perl 5.14 or later", 1;
}
# ____ _ _ _ _ _
# | _ \(_) __ _ __ _ _ __ ___ ___| |_(_) ___ | |__ __ _ ___| |__
# | | | | |/ _` |/ _` | '_ \ / _ \/ __| __| |/ __| | '_ \ / _` / __| '_ \
# | |_| | | (_| | (_| | | | | (_) \__ \ |_| | (__ | | | | (_| \__ \ | | |
# |____/|_|\__,_|\__, |_| |_|\___/|___/\__|_|\___| |_| |_|\__,_|___/_| |_|
# |___/
my $jp4 = JSON::Parse->new ();
$jp4->diagnostics_hash (1);
eval {
$jp4->run ("{{{{{");
};
ok (ref $@ eq 'HASH', "Got hash diagnostics");
};
done_testing ();
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