Redmine

    @prev = params[:prev]

    @next = params[:next]

    @pos  = params[:pos]

    @count = params[:count]

    retrieve_previous_and_next_issue_ids

        format.html { redirect_back_or_default issue_path(@issue, {'next' => @next_issue_id, 'prev' => @prev_issue_id, 'pos' => @issue_position, 'count' => @issue_count}.reject{|k,v|k.blank?}) }

      else

        return if issue_ids.empty?

        @prev_issue_id  = @prev

        @next_issue_id  = @next

        @issue_position = @pos

        @issue_count    = @count

  def test_show_should_display_prev_next_links_when_issue_does_not_match_query_condition_but_request_param_has_link_attributes

    @request.session[:query] = {:filters => {'status_id' => {:values => ['5'], :operator => 'c'}}, :project_id => 1}

    issue_5 = Issue.find(5)

    issue_5.status_id = 5 # be matched the query conditions

    issue_5.save!

    issue_1 = Issue.find(1)

    issue_1.status_id = 1 # not be matched the query conditions

    issue_1.save!

    get :show, :id => 1, :prev => 1, :next => 3, :pos => 2, :count => 4

    assert_response :success

    assert_equal '1', assigns(:prev)

    assert_equal '3', assigns(:next)

    assert_equal '2', assigns(:pos)

    assert_equal '4', assigns(:count)

    assert_equal '1', assigns(:prev_issue_id)

    assert_equal '3', assigns(:next_issue_id)

    assert_equal '2', assigns(:issue_position)

    assert_equal '4', assigns(:issue_count)

    assert_select 'div.next-prev-links' do

      assert_select 'a[href="/issues/1"]', :text => /Previous/

      assert_select 'a[href="/issues/3"]', :text => /Next/

      assert_select 'span.position', :text => "2 of 4"

    end

  end

  def test_show_should_not_display_prev_next_links_when_request_param_has_link_attributes_but_query_results_empty

    @request.session[:query] = {:filters => {'status_id' => {:values => ['5'], :operator => 'c'}}, :project_id => 1}

    Issue.update_all("status_id=1") # all issues is not matched the qeury condition

    get :show, :id => 1, :prev => 1, :next => 3, :pos => 2, :count => 4

    assert_response :success

    assert_nil assigns(:prev_issue_id)

    assert_nil assigns(:next_issue_id)

    assert_nil assigns(:issue_position)

    assert_nil assigns(:issue_count)

    assert_select 'a', :text => /Previous/, :count => 0

    assert_select 'a', :text => /Next/, :count => 0

  end

  def test_put_update_should_retrieve_previous_and_next_issue_ids_and_added_parameters_on_redirect_url

    issue = Issue.find(11)

    issue.status_id = 5

    issue.save!

    ActionMailer::Base.deliveries.clear

    @request.session[:query] = {:filters => {'status_id' => {:values => ['5'], :operator => 'c'}}, :project_id => 1}

    @request.session['issues_index_sort'] = 'id'

    @request.session[:user_id] = 2

    put :update, :id => 11, :issue => {:status_id => 6, :notes => 'change status.'}

    assert_equal 6, assigns(:issue).status_id

    issue.reload

    assert_equal 6, issue.status_id

    assert_equal 3, assigns[:issue_count]

    assert_equal 8, assigns[:prev_issue_id]

    assert_equal 12, assigns[:next_issue_id]

    assert_equal 2, assigns[:issue_position]

    assert_redirected_to '/issues/11?count=3&next=12&pos=2&prev=8'

  end