chore(sidekiq): move rails_spec to spec:isolated group

Author: solnic

sentry-sidekiq/spec/sentry/rails_spec.rb …ntry-sidekiq/spec/isolated/rails_spec.rbsentry-sidekiq/spec/sentry/rails_spec.rb renamed to sentry-sidekiq/spec/isolated/rails_spec.rb sentry-sidekiq/spec/sentry/rails_spec.rb renamed to sentry-sidekiq/spec/isolated/rails_spec.rb

@@ -1,14 +1,16 @@
 # frozen_string_literal: true
 
-return unless ENV["WITH_SENTRY_RAILS"]
-
-require "logger"
+begin
+  require "simplecov"
+  SimpleCov.command_name "SidekiqRails"
+rescue LoadError
+end
 
-require "rails"
 require "sentry-rails"
-require "spec_helper"
 
-require "action_controller/railtie"
+# This MUST be required after sentry-rails because it requires sentry-sidekiq
+# which checks if Railtie is defined to properly set things up
+require_relative "../spec_helper"
 
 class TestApp < Rails::Application
 end
@@ -23,15 +25,9 @@ def self.name
   app.config.hosts = nil
   app.config.secret_key_base = "test"
   app.config.eager_load = false
+
   app.initializer :configure_sentry do
-    Sentry.init do |config|
-      config.release = 'beta'
-      config.dsn = "dummy://12345:[email protected]:3000/sentry/42"
-      config.transport.transport_class = Sentry::DummyTransport
-      # for sending events synchronously
-      config.background_worker_threads = 0
-      yield(config, app) if block_given?
-    end
+    perform_basic_setup
   end
 
   app.initialize!