mechanize：Mechanize::Form#action

everyday Ruby 
>> require 'mechanize'
=> true
>> agent = Mechanize.new
=> #<Mechanize:0xb7496594 ...
>> page = agent.get('http://www.google.com/')
=> #<Mechanize::Page
 {url #<URI::HTTP:0xb7489920 URL:http://www.google.co.jp/>}
  ...
>> search_form = page.form_with(:name => "f")
=> #<Mechanize::Form
 {name "f"}
  ...
>> search_form.action
=> "/search"


以下のような HTML で

<html>
<head>
<title>form test</title>
</head>
<body>

<form method="get" action="cgi/foo00.cgi" name="form1">
</form>

<form method="post" action="cgi/foo01.cgi" name="form2">
</form>

</body>
</html>
>> require 'mechanize'
=> true
>> agent = Mechanize.new
=> #<Mechanize:0xb7444604 ...
>> page = agent.get('http://127.0.0.1:8080/test09_form.html')
=> #<Mechanize::Page
 {url #<URI::HTTP:0xb7440d4c URL:http://127.0.0.1:8080/test09_form.html>}
 {meta}
 {title "form test"}
 {iframes}
 {frames}
 {links}
 {forms
  #<Mechanize::Form
   {name "form1"}
   {method "GET"}
   {action "cgi/foo00.cgi"}
   {fields}
   {radiobuttons}
   {checkboxes}
   {file_uploads}
   {buttons}>
  #<Mechanize::Form
   {name "form2"}
   {method "POST"}
   {action "cgi/foo01.cgi"}
   {fields}
   {radiobuttons}
   {checkboxes}
   {file_uploads}
   {buttons}>}>

>> f = page.form_with(:name => "form1")
=> #<Mechanize::Form
 {name "form1"}
 {method "GET"}
 {action "cgi/foo00.cgi"}
 {fields}
 {radiobuttons}
 {checkboxes}
 {file_uploads}
 {buttons}>

>> f.action
=> "cgi/foo00.cgi"
>> f = page.form_with(:name => "form2")
=> #<Mechanize::Form
 {name "form2"}
 {method "POST"}
 {action "cgi/foo01.cgi"}
 {fields}
 {radiobuttons}
 {checkboxes}
 {file_uploads}
 {buttons}>

>> f.action
=> "cgi/foo01.cgi"