testing post :action with an array in the parameters


I have a html form with check boxes. When the user chooses one or more
check boxes, an array is passed as a parameter to the controller.

in html form page...
<input type='checkbox' name='myarray[]' value='<%= value %>' checked/>
<%= name %> <br/>

in controller
params[:myarray] # this in an array of all the values checked

This works great, but I am having trouble replicating the post in my
tests. Does anybody know how to pass an array in a post test?

This gives me a routing error...

post :create, {:myarray => ['value1, 'value2'] }


After further tinkering I realized that is passing the array. The
routing error was within the action, not the creation of the test
post. Sorry for the list traffic.