Improve testing setup

spec/support/resource_helpers.rb

@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+RESOURCES_TO_TEST_AGAINST = [
+  Calligraphy::FileResource
+].freeze
+
+module RSpecMethods
+  def setup; end
+
+  def cleanup; end
+
+  def create(resource:, content: 'Hi hi!'); end
+end
+
+module FileResourceHelpers
+  def setup
+    tmp_dir = Rails.root.join('../../tmp').to_path
+    Dir.mkdir tmp_dir unless File.exist? tmp_dir
+
+    FileUtils.rm_r resource_root if File.exist? resource_root
+    Dir.mkdir resource_root
+  end
+
+  def cleanup
+    FileUtils.rm_r resource_root if File.exist? resource_root
+  end
+
+  def create(resource:, content: 'Hello world')
+    resource = Calligraphy::FileResource.new(
+      resource: resource,
+      root_dir: resource_root
+    )
+    resource.write content
+  end
+
+  def resource_root
+    Rails.root.join('../../tmp/webdav').to_path
+  end
+end
+
+RESOURCES_TO_TEST_AGAINST.each do |resource_class|
+  resource_class.send :extend, RSpecMethods
+end
+
+module Calligraphy
+  class FileResource
+    extend FileResourceHelpers
+  end
+end