Spec HttpHelper (#3416)

spec/helpers/http_helper_spec.rb

+# frozen_string_literal: true
+
+require 'rails_helper'
+
+describe HttpHelper do
+  describe 'http_client' do
+    it 'returns HTTP::Client with default options' do
+      options = helper.http_client.default_options
+      expect(options.headers['User-Agent']).to match /.+ \(Mastodon\/.+;\ \+http:\/\/cb6e6126\.ngrok\.io\/\)/
+      expect(options.timeout_options).to eq read_timeout: 10, write_timeout: 10, connect_timeout: 10
+    end
+  end
+end