def test_create
    num_admins = Admin.count

    post :create, :admin => admins(:admin)

    assert_response :redirect
    assert_redirected_to :action => 'list'

    assert_equal num_admins   1, Admin.count
  end


in the fixture there is:


<% SALT = "saltyNut24ucr4cK3r" unless defined?(SALT) %>
admin:
  id: 1
  username: admin
  password: <%= Admin.sha1(SALT, 'test123') %>