test: 💍 ExportToDistCsv::*.Service のテストを追加した（テストに合わせてリファクタも） (#70)

app/services/export_to_dist_csv/albums_service.rb

@@ -4,9 +4,7 @@ module ExportToDistCsv
   class AlbumsService
     def initialize; end # rubocop:disable Style/RedundantInitialize
 
-    def execute
-      exported_file_path = 'db/dist_csv_files/albums.csv'
-
+    def execute(exported_file_path = 'db/dist_csv_files/albums.csv')
       CSV.open(exported_file_path, 'w', force_quotes: true) do |csv|
         csv << headers
 

app/services/export_to_dist_csv/artists_service.rb

@@ -4,9 +4,7 @@ module ExportToDistCsv
   class ArtistsService
     def initialize; end # rubocop:disable Style/RedundantInitialize
 
-    def execute
-      exported_file_path = 'db/dist_csv_files/artists.csv'
-
+    def execute(exported_file_path = 'db/dist_csv_files/artists.csv')
       CSV.open(exported_file_path, 'w', force_quotes: true) do |csv|
         csv << headers
 

app/services/export_to_dist_csv/features_in_all_albums_service.rb

@@ -2,12 +2,10 @@
 
 module ExportToDistCsv
   class FeaturesInAllAlbumsService
-    EXPORTED_FILE_PATH = Rails.root.join('db/dist_csv_files/features_all.csv')
-
     def initialize; end # rubocop:disable Style/RedundantInitialize
 
-    def execute
-      CSV.open(EXPORTED_FILE_PATH, 'w', force_quotes: true) do |csv|
+    def execute(exported_file_path = Rails.root.join('db/dist_csv_files/features_all.csv'))
+      CSV.open(exported_file_path, 'w', force_quotes: true) do |csv|
         csv << headers
 
         rows.each do |row|

app/services/export_to_dist_csv/features_in_each_album_service.rb

@@ -6,11 +6,11 @@ def initialize(album_name)
       @album_name = album_name
     end
 
-    def execute
+    def execute(exported_files_dir = Rails.root.join('db/dist_csv_files'))
       raise 'アルバム名の指定が誤っています' unless @album_name.in?(album_names)
 
       exported_file_name = album_name_to_exported_file_name[@album_name]
-      exported_file_path = Rails.root.join("db/dist_csv_files/#{exported_file_name}")
+      exported_file_path = "#{exported_files_dir}/#{exported_file_name}"
 
       CSV.open(exported_file_path, 'w', force_quotes: true) do |csv|
         csv << headers

spec/services/export_to_dist_csv/albums_service_spec.rb

@@ -0,0 +1,11 @@
+require 'rails_helper'
+
+RSpec.describe 'ExportToDistCsv::AlbumsService' do
+  it 'エクスポータが正しく実行できること' do
+    csv_filepath = 'tmp/dist_csv_albums.csv'
+
+    ExportToDistCsv::AlbumsService.new.execute(csv_filepath)
+
+    expect(File.exist?(csv_filepath)).to eq true
+  end
+end

spec/services/export_to_dist_csv/artists_service_spec.rb

@@ -0,0 +1,11 @@
+require 'rails_helper'
+
+RSpec.describe 'ExportToDistCsv::ArtistsService' do
+  it 'エクスポータが正しく実行できること' do
+    csv_filepath = 'tmp/dist_csv_artists.csv'
+
+    ExportToDistCsv::ArtistsService.new.execute(csv_filepath)
+
+    expect(File.exist?(csv_filepath)).to eq true
+  end
+end

spec/services/export_to_dist_csv/features_in_all_albums_service_spec.rb

@@ -0,0 +1,11 @@
+require 'rails_helper'
+
+RSpec.describe 'ExportToDistCsv::FeaturesInAllAlbumsService' do
+  it 'エクスポータが正しく実行できること' do
+    csv_filepath = 'tmp/dist_csv_features_all.csv'
+
+    ExportToDistCsv::FeaturesInAllAlbumsService.new.execute(csv_filepath)
+
+    expect(File.exist?(csv_filepath)).to eq true
+  end
+end

spec/services/export_to_dist_csv/features_in_each_album_service_spec.rb

@@ -0,0 +1,26 @@
+require 'rails_helper'
+
+RSpec.describe 'ExportToDistCsv::FeaturesInEachAlbumService' do
+  it 'エクスポータが正しく実行できること' do
+    exported_files_dir = 'tmp'
+
+    # TODO: DRY じゃないので直したい
+    album_name_to_exported_file_name = {
+      '幻想水滸伝 ORIGINAL GAME SOUNDTRACK' => 'features_s1.csv',
+      '幻想水滸伝II ORIGINAL GAME SOUNDTRACK Vol.1' => 'features_s2_1.csv',
+      '幻想水滸伝II ORIGINAL GAME SOUNDTRACK Vol.2' => 'features_s2_2.csv',
+      '幻想水滸伝III ORIGINAL SOUNDTRACK SELECTION' => 'features_s3.csv',
+      '幻想水滸伝IV ORIGINAL SOUNDTRACK SELECTION' => 'features_s4.csv',
+      '幻想水滸伝V ORIGINAL SOUNDTRACK SELECTION' => 'features_s5.csv',
+      '幻想水滸伝ティアクライス ORIGINAL SOUNDTRACK' => 'features_tk.csv',
+      '幻想水滸伝 紡がれし百年の時 オリジナルサウンドトラック' => 'features_tsumutoki.csv'
+    }
+
+    album_name_to_exported_file_name.each do |album_name, exported_file_name|
+      service = ExportToDistCsv::FeaturesInEachAlbumService.new(album_name)
+      service.execute(exported_files_dir)
+
+      expect(File.exist?("#{exported_files_dir}/#{exported_file_name}")).to be_truthy
+    end
+  end
+end