thoughtbot--factory_bot/spec/acceptance/register_strategies_spec.rb

151 lines
3.9 KiB
Ruby

shared_context "registering custom strategies" do
before do
define_class("NamedObject") do
attr_accessor :name
end
end
let(:custom_strategy) do
Class.new do
def result(evaluation)
evaluation.object.tap do |instance|
instance.name = "Custom strategy"
end
end
end
end
end
describe "register custom strategies" do
include_context "registering custom strategies"
before do
FactoryBot.define do
factory :named_object do
name { "Great" }
end
end
end
it "allows overriding default strategies" do
expect(FactoryBot.build(:named_object).name).to eq "Great"
FactoryBot.register_strategy(:build, custom_strategy)
expect(FactoryBot.build(:named_object).name).to eq "Custom strategy"
end
it "allows adding additional strategies" do
FactoryBot.register_strategy(:insert, custom_strategy)
expect(FactoryBot.build(:named_object).name).to eq "Great"
expect(FactoryBot.insert(:named_object).name).to eq "Custom strategy"
end
it "allows using the *_list method to build a list using a custom strategy" do
FactoryBot.register_strategy(:insert, custom_strategy)
inserted_items = FactoryBot.insert_list(:named_object, 2)
expect(inserted_items.length).to eq 2
expect(inserted_items.map(&:name)).to eq ["Custom strategy", "Custom strategy"]
end
it "allows using the *_pair method to build a list using a custom strategy" do
FactoryBot.register_strategy(:insert, custom_strategy)
inserted_items = FactoryBot.insert_pair(:named_object)
expect(inserted_items.length).to eq 2
expect(inserted_items.map(&:name)).to eq ["Custom strategy", "Custom strategy"]
end
end
describe "including FactoryBot::Syntax::Methods when custom strategies have been declared" do
include FactoryBot::Syntax::Methods
include_context "registering custom strategies"
before do
FactoryBot.define do
factory :named_object do
name { "Great" }
end
end
end
it "allows adding additional strategies" do
FactoryBot.register_strategy(:insert, custom_strategy)
expect(insert(:named_object).name).to eq "Custom strategy"
end
end
describe "associations without overriding :strategy" do
include_context "registering custom strategies"
before do
define_model("Post", user_id: :integer) do
belongs_to :user
end
define_model("User", name: :string)
FactoryBot.define do
factory :post do
user
end
factory :user do
name { "John Doe" }
end
end
end
context "when the :use_parent_strategy config option is set to false" do
it "uses the overridden strategy on the association" do
FactoryBot.register_strategy(:create, custom_strategy)
with_temporary_assignment(FactoryBot, :use_parent_strategy, false) do
post = FactoryBot.build(:post)
expect(post.user.name).to eq "Custom strategy"
end
end
end
context "when the :use_parent_strategy config option is set to true" do
it "uses the parent strategy on the association" do
FactoryBot.register_strategy(:create, custom_strategy)
with_temporary_assignment(FactoryBot, :use_parent_strategy, true) do
post = FactoryBot.build(:post)
expect(post.user.name).to eq "John Doe"
end
end
end
end
describe "associations overriding :strategy" do
include_context "registering custom strategies"
before do
define_model("Post", user_id: :integer) do
belongs_to :user
end
define_model("User", name: :string)
FactoryBot.define do
factory :post do
association :user, strategy: :insert
end
factory :user do
name { "John Doe" }
end
end
end
it "uses the overridden create strategy to create the association" do
FactoryBot.register_strategy(:insert, custom_strategy)
post = FactoryBot.build(:post)
expect(post.user.name).to eq "Custom strategy"
end
end