+require "application_system_test_case"
+
+class ChangesetElementsTest < ApplicationSystemTestCase
+ test "can navigate between element subpages without losing comment input" do
+ element_page_size = 20
+ changeset = create(:changeset, :closed)
+ ways = create_list(:way, element_page_size + 1, :with_history, :changeset => changeset)
+ way_paths = ways.map { |way| way_path(way) }
+ nodes = create_list(:node, element_page_size + 1, :with_history, :changeset => changeset)
+ node_paths = nodes.map { |node| node_path(node) }
+
+ sign_in_as(create(:user))
+ visit changeset_path(changeset)
+
+ within_sidebar do
+ assert_one_missing_link way_paths
+ assert_link "Ways (21-21 of 21)"
+
+ assert_one_missing_link node_paths
+ assert_link "Nodes (21-21 of 21)"
+ end
+ end
+
+ private
+
+ def assert_one_missing_link(hrefs)
+ missing_href = nil
+ hrefs.each do |href|
+ missing = true
+ assert_link :href => href, :minimum => 0, :maximum => 1 do
+ missing = false
+ end
+ if missing
+ assert_nil missing_href, "unexpected extra missing link '#{href}'"
+ missing_href = href
+ end
+ end
+ assert_not_nil missing_href, "expected one link missing but all are present"
+ missing_href
+ end
+end