tion(){
    verify_computed_type(generate_property('<angle>'), null, CSSUnitValue);
    verify_computed_type(generate_property('fail | <angle> '), '42deg', CSSUnitValue);
}, 'Computed <angle> is reified as CSSUnitValue');

test(function(){
    verify_computed_type(generate_property('<color>'), null, CSSStyleValue);
    verify_computed_type(generate_property('fail | <color> '), null, CSSStyleValue);
}, 'Computed <color> is reified as CSSStyleValue');

test(function(){
    verify_computed_type(generate_proper