#!perl -T
use strict;
use warnings;
use Test::Requires {
    'Test::Taint' => '0',
};
use Test::More 0.88;
use Test::Fatal 0.006;
taint_checking_ok();
{
    package T;
    use strict;
    use warnings;
    use lib 't/lib';
    use Module::Implementation;
    my $loader = Module::Implementation::build_loader_sub(
        implementations => [ 'Impl1', 'Impl2' ],
        symbols         => ['return_42'],
    );
    ::taint( $ENV{T_IMPLEMENTATION} = 'Impl2' );
    ::tainted_ok( $ENV{T_IMPLEMENTATION}, '$ENV{T_IMPLEMENTATION} is tainted' );
    ::is(
        ::exception{ $loader->() },
        undef,
        'no exception when implementation is specified in env var under taint mode'
    );
}
{
    is(
        Module::Implementation::implementation_for('T'),
        'Impl2',
        'T::_implementation returns implementation set in ENV'
    );
}
done_testing();