FR-613 Fix test suite config

we should be able to run the test suite without issues,
would be nice having a CI to confirm this works.

Ticket: https://ombulabs.atlassian.net/browse/FR-613

Rakefile

@@ -6,3 +6,12 @@ load "rails/tasks/engine.rake"
 load "rails/tasks/statistics.rake"
 
 require "bundler/gem_tasks"
+
+require 'rake/testtask'
+
+Rake::TestTask.new(:test) do |t|
+  t.libs << 'test'
+  t.pattern = 'test/**/*_test.rb'
+end
+
+task default: :test

test/controllers/callbacks_controller_test.rb

@@ -1,3 +1,5 @@
+require "test_helper"
+
 class CallbacksControllerTest < ActionDispatch::IntegrationTest
   GITHUB_INFO = {
     "id" => "12345",
@@ -67,4 +69,4 @@ def organization_members
       assert_equal "This application is only available to members of my_org.", flash[:error]
     end
   end
-end
+end

test/dummy/config/environments/test.rb

@@ -55,6 +55,9 @@
   # Raises error for missing translations.
   # config.i18n.raise_on_missing_translations = true
 
+  # Allow any host in the test environment
+  config.hosts.clear
+
   # Annotate rendered view with file names.
   # config.action_view.annotate_rendered_view_with_filenames = true
 end