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# frozen_string_literal: true
require "spec_helper"
if testing_rails?
describe GraphQL::Schema::Member::HasDataloader do
class DataloaderExample
include GraphQL::Schema::Member::HasDataloader
def initialize(dataloader, object = nil)
@context = OpenStruct.new(dataloader: dataloader)
@object = object
end
attr_reader :context, :object
end
class PlusSource < GraphQL::Dataloader::Source
def fetch(keys)
res = keys.reduce(&:+)
keys.map { |k| res }
end
end
it_dataloads "loads records with dataload_record" do |d|
example = DataloaderExample.new(d)
assert_equal "Homey", example.dataload_record(Album, 4).name
assert_equal 4, example.dataload_record(Album, "Homey", find_by: :name).id
end
it_dataloads "loads association with dataload_association" do |d|
album1 = Album.find(1)
example = DataloaderExample.new(d, album1)
assert_equal "Vulfpeck", example.dataload_association(:band).name, "Defaults to record = object"
album = Album.find(4)
assert_equal "Chon", example.dataload_association(album, :band).name
album.reload
assert_nil example.dataload_association(album, :band, scope: Band.country)
end
it_dataloads "calls any source with dataload..." do |d|
example = DataloaderExample.new(d)
d.with(PlusSource).request(2)
d.with(PlusSource).request(3)
assert_equal 9, example.dataload(PlusSource, 4)
assert_equal 5, example.dataload(PlusSource, 5)
end
end
end
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