fix and test purge cache

models/site.rb

@@ -202,7 +202,7 @@ class Site < Sequel::Model
 
     %w{index not_found}.each do |name|
       File.write files_path("#{name}.html"), render_template("#{name}.erb")
-      purge_cache "#{name}.html"
+      purge_cache "/#{name}.html"
       ScreenshotWorker.perform_async values[:username], "#{name}.html"
     end
 
@@ -327,7 +327,8 @@ class Site < Sequel::Model
   end
 
   def purge_cache(path)
-    payload = {site: username, path: path}
+    relative_path = path.gsub(base_files_path, '')
+    payload = {site: username, path: relative_path}
     payload[:domain] = domain if !domain.empty?
     PurgeCacheWorker.perform_async payload
   end

tests/site_file_tests.rb

@@ -11,16 +11,22 @@ describe 'site_files' do
   describe 'upload' do
     it 'succeeds with valid file' do
       site = Fabricate :site
+      PurgeCacheWorker.jobs.clear
       post '/site_files/upload', {
         'files[]' => Rack::Test::UploadedFile.new('./tests/files/test.jpg', 'image/jpeg'),
         'csrf_token' => 'abcd'
       }, {'rack.session' => { 'id' => site.id, '_csrf_token' => 'abcd' }}
       last_response.body.must_match /successfully uploaded/i
       File.exists?(site.files_path('test.jpg')).must_equal true
+
+      queue_args = PurgeCacheWorker.jobs.first['args'].first
+      queue_args['site'].must_equal site.username
+      queue_args['path'].must_equal '/test.jpg'
     end
 
     it 'works with directory path' do
       site = Fabricate :site
+      PurgeCacheWorker.jobs.clear
       post '/site_files/upload', {
         'dir' => 'derpie/derptest',
         'files[]' => Rack::Test::UploadedFile.new('./tests/files/test.jpg', 'image/jpeg'),
@@ -28,6 +34,9 @@ describe 'site_files' do
       }, {'rack.session' => { 'id' => site.id, '_csrf_token' => 'abcd' }}
       last_response.body.must_match /successfully uploaded/i
       File.exists?(site.files_path('derpie/derptest/test.jpg')).must_equal true
+
+      queue_args = PurgeCacheWorker.jobs.first['args'].first
+      queue_args['path'].must_equal '/derpie/derptest/test.jpg'
     end
   end
 end