DEV: clean up dependencies in spec

Follow up on zeitwork we needed to be a bit more explicit about a few
dependencies internally.

On certain orders the test suite could fail.

lib/import_export.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "import_export/importer"
+require "import_export/base_exporter"
 require "import_export/category_structure_exporter"
 require "import_export/category_exporter"
 require "import_export/topic_exporter"

lib/import_export/base_exporter.rb

@@ -2,7 +2,6 @@
 
 module ImportExport
   class BaseExporter
-
     attr_reader :export_data, :categories
 
     CATEGORY_ATTRS = [:id, :name, :color, :created_at, :user_id, :slug, :description, :text_color,

lib/import_export/category_structure_exporter.rb

@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "import_export/base_exporter"
-
 module ImportExport
   class CategoryStructureExporter < BaseExporter
 

spec/import_export/category_exporter_spec.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "import_export/category_exporter"
+require "import_export"
 
 describe ImportExport::CategoryExporter do
 
@@ -24,7 +24,7 @@ describe ImportExport::CategoryExporter do
     end
 
     it 'export the category with permission groups' do
-      category_group = Fabricate(:category_group, category: category, group: group)
+      _category_group = Fabricate(:category_group, category: category, group: group)
       data = ImportExport::CategoryExporter.new([category.id]).perform.export_data
 
       expect(data[:categories].count).to eq(1)
@@ -33,7 +33,7 @@ describe ImportExport::CategoryExporter do
 
     it 'export multiple categories' do
       category2 = Fabricate(:category)
-      category_group = Fabricate(:category_group, category: category, group: group)
+      _category_group = Fabricate(:category_group, category: category, group: group)
       data = ImportExport::CategoryExporter.new([category.id, category2.id]).perform.export_data
 
       expect(data[:categories].count).to eq(2)
@@ -45,8 +45,8 @@ describe ImportExport::CategoryExporter do
       Fabricate(:post, topic: topic1, user: User.find(-1), post_number: 1)
       topic2 = Fabricate(:topic, category: category, user: user)
       Fabricate(:post, topic: topic2, user: user, post_number: 1)
-      reply1 = Fabricate(:post, topic: topic2, user: user2, post_number: 2)
-      reply2 = Fabricate(:post, topic: topic2, user: user3, post_number: 3)
+      _reply1 = Fabricate(:post, topic: topic2, user: user2, post_number: 2)
+      _reply2 = Fabricate(:post, topic: topic2, user: user3, post_number: 3)
       data = ImportExport::CategoryExporter.new([category.id]).perform.export_data
 
       expect(data[:categories].count).to eq(1)

spec/import_export/importer_spec.rb

@@ -1,9 +1,7 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "import_export/category_exporter"
-require "import_export/category_structure_exporter"
-require "import_export/importer"
+require "import_export"
 
 describe ImportExport::Importer do
 
@@ -13,7 +11,7 @@ describe ImportExport::Importer do
 
   let(:import_data) do
     import_file = Rack::Test::UploadedFile.new(file_from_fixtures("import-export.json", "json"))
-    data = ActiveSupport::HashWithIndifferentAccess.new(JSON.parse(import_file.read))
+    ActiveSupport::HashWithIndifferentAccess.new(JSON.parse(import_file.read))
   end
 
   def import(data)

spec/import_export/topic_exporter_spec.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "import_export/topic_exporter"
+require "import_export"
 
 describe ImportExport::TopicExporter do
 
@@ -25,7 +25,7 @@ describe ImportExport::TopicExporter do
 
     it 'export multiple topics' do
       topic2 = Fabricate(:topic, user: user)
-      post2 = Fabricate(:post, user: user, topic: topic2)
+      _post2 = Fabricate(:post, user: user, topic: topic2)
       data = ImportExport::TopicExporter.new([topic.id, topic2.id]).perform.export_data
 
       expect(data[:categories].blank?).to eq(true)

spec/lib/backup_restore/s3_backup_store_spec.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require 'rails_helper'
+require 's3_helper'
 require 'backup_restore/s3_backup_store'
 require_relative 'shared_examples_for_backup_store'