多言語化の基盤作り (#55) (#421)

Reviewed-on: #421
Co-authored-by: miteruzo <miteruzo@naver.com>

backend/spec/services/post_bulk_creator_spec.rb

@@ -1,7 +1,10 @@
 require 'rails_helper'
 
 RSpec.describe PostBulkCreator do
+  include_context 'English locale'
+
   it 'limits workers to two and keeps failures in their request slots' do
+    locale = Locale.nipponese
     actor = instance_double(User, id: 123)
     allow(User).to receive(:find).with(123) {
       instance_double(User, id: 123)
@@ -9,6 +12,7 @@ RSpec.describe PostBulkCreator do
     mutex = Mutex.new
     active = 0
     maximum_active = 0
+    creators = []
 
     allow(PostCreatePreflight).to receive(:new) do |attributes:, **|
       preflight = instance_double(PostCreatePreflight)
@@ -28,6 +32,7 @@ RSpec.describe PostBulkCreator do
     end
     allow(PostCreator).to receive(:new) do |attributes:, **|
       creator = instance_double(PostCreator)
+      mutex.synchronize { creators << creator }
       if attributes[:title] == 'broken'
         allow(creator).to receive(:create!).and_raise(StandardError, 'broken')
       else
@@ -45,7 +50,12 @@ RSpec.describe PostBulkCreator do
     results = described_class.new(
         actor:,
         posts:,
-        thumbnails: { }).run.fetch(:results)
+        thumbnails: { }).run(locale).fetch(:results)
+
+    expect(creators.length).to eq(posts.length)
+    creators.each do |creator|
+      expect(creator).to have_received(:create!).with(locale).once
+    end
 
     expect(maximum_active).to eq(2)
     expect(results.length).to eq(posts.length)
@@ -56,4 +66,26 @@ RSpec.describe PostBulkCreator do
     expect(results[2].dig(:post, :id)).to eq(3)
     expect(results[3].dig(:post, :id)).to eq(4)
   end
+
+  it 'passes a future English locale to preflight and creation in every worker' do
+    pending '日本語以外の Locale 有効化は別課題で実装する'
+    locale
+    actor = instance_double(User, id: 123)
+    allow(User).to receive(:find).with(123).and_return(actor)
+    preflight = instance_double(PostCreatePreflight)
+    creator = instance_double(PostCreator)
+    post = instance_double(Post, id: 1)
+    allow(PostCreatePreflight).to receive(:new).and_return(preflight)
+    allow(preflight).to receive(:run).with(locale).and_return(existing_post_id: nil)
+    allow(PostCreator).to receive(:new).and_return(creator)
+    allow(creator).to receive(:create!).with(locale).and_return(post)
+
+    results = described_class.new(
+        actor:, posts: [{ title: 'future post' }], thumbnails: { }).run(locale)
+
+    expect(results.fetch(:results)).to contain_exactly(
+        hash_including(status: 'created', post: { id: 1 }))
+    expect(preflight).to have_received(:run).with(locale).once
+    expect(creator).to have_received(:create!).with(locale).once
+  end
 end