filter:currency
formats a number as a currency (ie $1,234.56)
@format expression | currency
{{amount | currency}}
it('should init with 1234.56', function(){
expect(bind('amount')).toEqual('$1,234.56');
});
it('should update', function(){
element(':input[name=amount]').value('-1234');
expect(bind('amount')).toEqual('-$1,234.00');
expect(bind('amount')).toHaveColor('red');
});