+{
+ # make sure arguments aren't modified
+ my @args = (foo => [0, {value => 1}], [0, 1], {name => 0, value => 1});
+ my @orgs = (foo => [0, {value => 1}], [0, 1], {name => 0, value => 1});
+ my @output = (
+ '<label><input id="foo_0" name="foo" type="radio" value="0"> 0</label>',
+ '<label><input checked id="foo_1" name="foo" type="radio" value="1"> 1</label>',
+ );
+
+ is_deeply(
+ [ $form->radio(@args) ],
+ \@output,
+ 'options var to radio'
+ );
+
+ is_deeply(
+ [ $form->check(@args) ],
+ [
+ '<label><input checked id="foo_1" name="foo" type="checkbox" value="1"> 0</label>',
+ '<input checked id="foo_1" name="foo" type="checkbox" value="1">',
+ ],
+ 'options var to check'
+ );
+
+ is(
+ scalar $form->radio(@args),
+ join('', @output),
+ 'options var again to radio'
+ );
+
+ is_deeply(\@args, \@orgs, 'options var unmodified');
+}
+