views/events/show spec fails when it tries to call User.current_user.calendars

ActionView::TemplateError in '/events/show should wrap the whole thing in a

of class events' You have a nil object when you didn't expect it! The error occurred while evaluating nil.calendars On line #9 Write developer documentationof events/_table_header.html.haml

6:     = sortlinks ? sort_link("Date", :date, (@order == 'date' and @direction == 'asc') ? :desc : :asc) : h(_("Date"))
7:     - if @order == 'date'
8:       &= @direction == 'asc' ? '↑' : '↓'
9:   - if User.current_user.calendars.size > 1
10:     %th.calendar&= _('Calendar')
11:   %th
12:     = sortlinks ? sort_link("Event", :name, (@order == 'name' and @direction == 'asc') ? :desc : :asc) : h(_("Event"))

app/views/events/_table_header.html.haml:9:in `_run_plugin_47app47views47events47_table_header46html46haml'
vendor/gems/haml-2.1.0/lib/haml/helpers/action_view_mods.rb:12:in `orig_render'
vendor/gems/haml-2.1.0/lib/haml/helpers.rb:57:in `non_haml'
vendor/gems/haml-2.1.0/lib/haml/helpers/action_view_mods.rb:12:in `orig_render'
app/views/events/show.html.haml:4:in `_run_plugin_47app47views47events47show46html46haml'
/Library/Ruby/Gems/1.8/gems/gettext-1.93.0/lib/gettext/rails.rb:289:in `render_file'
spec/views/events/show.html.haml_spec.rb:18