+ def request_capped_index(params={})
+ authorize_with :user1_with_load
+ coll1 = collections(:collection_1_of_201)
+ Rails.configuration.max_index_database_read =
+ yield(coll1.manifest_text.size)
+ get :index, {
+ select: %w(uuid manifest_text),
+ filters: [["owner_uuid", "=", coll1.owner_uuid]],
+ limit: 300,
+ }.merge(params)
+ end
+
+ test "index with manifest_text limited by max_index_database_read returns non-empty" do
+ request_capped_index() { |_| 1 }
+ assert_response :success
+ assert_equal(1, json_response["items"].size)
+ assert_equal(1, json_response["limit"])
+ assert_equal(201, json_response["items_available"])
+ end
+
+ test "max_index_database_read size check follows same order as real query" do
+ authorize_with :user1_with_load
+ txt = '.' + ' d41d8cd98f00b204e9800998ecf8427e+0'*1000 + " 0:0:empty.txt\n"
+ c = Collection.create! manifest_text: txt, name: '0000000000000000000'
+ request_capped_index(select: %w(uuid manifest_text name),
+ order: ['name asc'],
+ filters: [['name','>=',c.name]]) do |_|
+ txt.length - 1
+ end
+ assert_response :success
+ assert_equal(1, json_response["items"].size)
+ assert_equal(1, json_response["limit"])
+ assert_equal(c.uuid, json_response["items"][0]["uuid"])
+ # The effectiveness of the test depends on >1 item matching the filters.
+ assert_operator(1, :<, json_response["items_available"])
+ end
+
+ test "index with manifest_text limited by max_index_database_read" do
+ request_capped_index() { |size| (size * 3) + 1 }
+ assert_response :success
+ assert_equal(3, json_response["items"].size)
+ assert_equal(3, json_response["limit"])
+ assert_equal(201, json_response["items_available"])
+ end
+
+ test "max_index_database_read does not interfere with limit" do
+ request_capped_index(limit: 5) { |size| size * 20 }
+ assert_response :success
+ assert_equal(5, json_response["items"].size)
+ assert_equal(5, json_response["limit"])
+ assert_equal(201, json_response["items_available"])
+ end
+
+ test "max_index_database_read does not interfere with order" do
+ request_capped_index(select: %w(uuid manifest_text name),
+ order: "name DESC") { |size| (size * 11) + 1 }
+ assert_response :success
+ assert_equal(11, json_response["items"].size)
+ assert_empty(json_response["items"].reject do |coll|
+ coll["name"] =~ /^Collection_9/
+ end)
+ assert_equal(11, json_response["limit"])
+ assert_equal(201, json_response["items_available"])
+ end
+