+ ##
+ # test initial rate limit
+ def test_initial_rate_limit
+ # create a user
+ user = create(:user)
+
+ # create some nodes
+ node1 = create(:node)
+ node2 = create(:node)
+
+ # create a changeset that puts us near the initial rate limit
+ changeset = create(:changeset, :user => user,
+ :created_at => Time.now.utc - 5.minutes,
+ :num_changes => Settings.initial_changes_per_hour - 1)
+
+ # create authentication header
+ auth_header = basic_authorization_header user.email, "test"
+
+ # try creating a relation
+ xml = "<osm><relation changeset='#{changeset.id}'>" \
+ "<member ref='#{node1.id}' type='node' role='some'/>" \
+ "<member ref='#{node2.id}' type='node' role='some'/>" \
+ "<tag k='test' v='yes' /></relation></osm>"
+ put relation_create_path, :params => xml, :headers => auth_header
+ assert_response :success, "relation create did not return success status"
+
+ # get the id of the relation we created
+ relationid = @response.body
+
+ # try updating the relation, which should be rate limited
+ xml = "<osm><relation id='#{relationid}' version='1' changeset='#{changeset.id}'>" \
+ "<member ref='#{node2.id}' type='node' role='some'/>" \
+ "<member ref='#{node1.id}' type='node' role='some'/>" \
+ "<tag k='test' v='yes' /></relation></osm>"
+ put api_relation_path(relationid), :params => xml, :headers => auth_header
+ assert_response :too_many_requests, "relation update did not hit rate limit"
+
+ # try deleting the relation, which should be rate limited
+ xml = "<osm><relation id='#{relationid}' version='2' changeset='#{changeset.id}'/></osm>"
+ delete api_relation_path(relationid), :params => xml, :headers => auth_header
+ assert_response :too_many_requests, "relation delete did not hit rate limit"
+
+ # try creating a relation, which should be rate limited
+ xml = "<osm><relation changeset='#{changeset.id}'>" \
+ "<member ref='#{node1.id}' type='node' role='some'/>" \
+ "<member ref='#{node2.id}' type='node' role='some'/>" \
+ "<tag k='test' v='yes' /></relation></osm>"
+ put relation_create_path, :params => xml, :headers => auth_header
+ assert_response :too_many_requests, "relation create did not hit rate limit"
+ end
+
+ ##
+ # test maximum rate limit
+ def test_maximum_rate_limit
+ # create a user
+ user = create(:user)
+
+ # create some nodes
+ node1 = create(:node)
+ node2 = create(:node)
+
+ # create a changeset to establish our initial edit time
+ changeset = create(:changeset, :user => user,
+ :created_at => Time.now.utc - 28.days)
+
+ # create changeset to put us near the maximum rate limit
+ total_changes = Settings.max_changes_per_hour - 1
+ while total_changes.positive?
+ changes = [total_changes, Changeset::MAX_ELEMENTS].min
+ changeset = create(:changeset, :user => user,
+ :created_at => Time.now.utc - 5.minutes,
+ :num_changes => changes)
+ total_changes -= changes
+ end
+
+ # create authentication header
+ auth_header = basic_authorization_header user.email, "test"
+
+ # try creating a relation
+ xml = "<osm><relation changeset='#{changeset.id}'>" \
+ "<member ref='#{node1.id}' type='node' role='some'/>" \
+ "<member ref='#{node2.id}' type='node' role='some'/>" \
+ "<tag k='test' v='yes' /></relation></osm>"
+ put relation_create_path, :params => xml, :headers => auth_header
+ assert_response :success, "relation create did not return success status"
+
+ # get the id of the relation we created
+ relationid = @response.body
+
+ # try updating the relation, which should be rate limited
+ xml = "<osm><relation id='#{relationid}' version='1' changeset='#{changeset.id}'>" \
+ "<member ref='#{node2.id}' type='node' role='some'/>" \
+ "<member ref='#{node1.id}' type='node' role='some'/>" \
+ "<tag k='test' v='yes' /></relation></osm>"
+ put api_relation_path(relationid), :params => xml, :headers => auth_header
+ assert_response :too_many_requests, "relation update did not hit rate limit"
+
+ # try deleting the relation, which should be rate limited
+ xml = "<osm><relation id='#{relationid}' version='2' changeset='#{changeset.id}'/></osm>"
+ delete api_relation_path(relationid), :params => xml, :headers => auth_header
+ assert_response :too_many_requests, "relation delete did not hit rate limit"
+
+ # try creating a relation, which should be rate limited
+ xml = "<osm><relation changeset='#{changeset.id}'>" \
+ "<member ref='#{node1.id}' type='node' role='some'/>" \
+ "<member ref='#{node2.id}' type='node' role='some'/>" \
+ "<tag k='test' v='yes' /></relation></osm>"
+ put relation_create_path, :params => xml, :headers => auth_header
+ assert_response :too_many_requests, "relation create did not hit rate limit"
+ end
+
+ private
+
+ def check_relations_for_element(path, type, id, expected_relations)
+ # check the "relations for relation" mode
+ get path
+ assert_response :success
+
+ # count one osm element
+ assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
+
+ # we should have only the expected number of relations
+ assert_select "osm>relation", expected_relations.size
+
+ # and each of them should contain the element we originally searched for
+ expected_relations.each do |relation|
+ # The relation should appear once, but the element could appear multiple times
+ assert_select "osm>relation[id='#{relation.id}']", 1
+ assert_select "osm>relation[id='#{relation.id}']>member[type='#{type}'][ref='#{id}']"
+ end
+ end