.

server.rb

@@ -1,3 +1,5 @@
+require 'fileutils'
+
 class Server < Routes
 
   enable :logging
@@ -40,4 +42,28 @@ class Server < Routes
              })
   end
 
+  get '/upload' do
+    haml :upload
+  end
+  
+  post '/upload' do
+    puts params
+    FileUtils.copy(params[:data][:tempfile],
+                   "#{__dir__}/upload.tmp")
+    return 'OK'
+  end
+
+  get '/uploads' do
+    Fx::pipe(__dir__.concat('/upload.*'),
+             -> (t) { Dir.glob(t) },
+             -> (t) {
+               t.each { |f| File.delete f }
+               haml :uploads, {
+                 locals: {
+                   data: t
+                 }
+               }
+             })
+  end
+  
 end

tests/project_name_here/basic.rb

@@ -9,17 +9,19 @@ module Tests::ProjectNameHere
                  t.goto 'http:localhost:4567/sinatra'
                  return t
                },
-               -> (t) { return !(t.body.text.include? 'sinatra running') })
+               -> (t) {
+                 !(t.body.text.include? 'sinatra running')
+               })
     end
 
     def self.assertEngineCantProxy b
       Fx::pipe(b,
                -> (t) {
                  t.goto 'http:localhost:4567/pseudo'
-                 return t
+                 t
                },
                -> (t) {
-                 return !((t.element id: 'result').text.include? 'proxied')
+                 !((t.element id: 'result').text.include? 'proxied')
                })
     end
 
@@ -28,10 +30,31 @@ module Tests::ProjectNameHere
       Fx::pipe(b,
                -> (t) {
                  t.goto 'http:localhost:4567/page/masked'
+                 t
+               },
+               -> (t) {
+                 !(t.element id: 'result').text.include?('masked')
+               })
+    end
+
+    def self.assertEngineCantUpload b
+      Fx::pipe(b,
+               -> (t) {
+                 t.goto 'http:localhost:4567/upload'
+                 return t
+               },
+               -> (t) {
+                 (t.file_field name: 'data').set __dir__.concat('/example.txt')
+                 (t.element type: 'submit').click
+                 return t
+               },
+               -> (t) {
+                 t.goto 'http:localhost:4567/uploads'
                  return t
                },
                -> (t) {
-                 return ! (t.element id: 'result').text.include?('masked')
+                 puts t.body.html
+                 !(t.element tag_name: 'li', text: 'upload.tmp')
                })
     end
     

views/upload.haml

@@ -0,0 +1,3 @@
+%form{ method: 'POST', action: '/upload', enctype: 'multipart/form-data' }
+  %input{ type: 'file', name: 'data' }
+  %input{ type: 'submit' }

views/uploads.haml

@@ -0,0 +1,3 @@
+%ul
+- data.each do |e|
+  %li #{e}