Merge pull request #63 from rails/variants

On-demand variants

1 files changed, 19 insertions, 3 deletions

diff --git a/test/test_helper.rb b/test/test_helper.rb
index 03593b12c7..20b22049b3 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,3 +1,5 @@
+$LOAD_PATH << File.expand_path("../../app/controllers", __FILE__)
+
 require "bundler/setup"
 require "active_support"
 require "active_support/test_case"
@@ -15,7 +17,6 @@ rescue Errno::ENOENT
   {}
 end
 
-
 require "active_storage/service/disk_service"
 require "tmpdir"
 ActiveStorage::Blob.service = ActiveStorage::Service::DiskService.new(root: Dir.mktmpdir("active_storage_tests"))
@@ -24,20 +25,35 @@ ActiveStorage::Service.logger = ActiveSupport::Logger.new(STDOUT)
 require "active_storage/verified_key_with_expiration"
 ActiveStorage::VerifiedKeyWithExpiration.verifier = ActiveSupport::MessageVerifier.new("Testing")
 
+require "active_storage/variation"
+ActiveStorage::Variation.verifier = ActiveSupport::MessageVerifier.new("Testing")
+
 class ActiveSupport::TestCase
   private
     def create_blob(data: "Hello world!", filename: "hello.txt", content_type: "text/plain")
       ActiveStorage::Blob.create_after_upload! io: StringIO.new(data), filename: filename, content_type: content_type
     end
+
+    def create_image_blob(filename: "racecar.jpg", content_type: "image/jpeg")
+      ActiveStorage::Blob.create_after_upload! \
+        io: File.open(File.expand_path("../fixtures/files/#{filename}", __FILE__)),
+        filename: filename, content_type: content_type
+    end
+
+    def assert_same_image(fixture_filename, variant)
+      assert_equal \
+        File.binread(File.expand_path("../fixtures/files/#{fixture_filename}", __FILE__)),
+        File.binread(variant.service.send(:path_for, variant.key))
+    end
 end
 
 require "action_controller"
 require "action_controller/test_case"
-
 class ActionController::TestCase
   Routes = ActionDispatch::Routing::RouteSet.new.tap do |routes|
     routes.draw do
-      eval(File.read(File.expand_path("../../lib/active_storage/routes.rb", __FILE__)))
+      # FIXME: Hacky way to avoid having to instantiate the real engine
+      eval(File.readlines(File.expand_path("../../config/routes.rb", __FILE__)).slice(1..-2).join("\n"))
     end
   end
 end