Fix rack_file not retaining Attacher#assign method signature

CHANGELOG.md

@@ -1,5 +1,7 @@
 ## HEAD
 
+* `rack_file` – Fix overriden `Attacher#assign` not accepting second argument (@janko)
+
 * `parsed_json` – Fix overriden `Attacher#assign` not accepting second argument (@janko)
 
 ## 2.17.0 (2019-05-06)

lib/shrine/plugins/rack_file.rb

@@ -60,9 +60,9 @@ def rack_file?(value)
       module AttacherMethods
         # Checks whether a file is a Rack file hash, and in that case wraps the
         # hash in an IO-like object.
-        def assign(value)
+        def assign(value, **options)
           if rack_file?(value)
-            assign(shrine_class.rack_file(value))
+            assign(shrine_class.rack_file(value), **options)
           else
             super
           end

test/plugin/parsed_json_test.rb

@@ -23,9 +23,9 @@
   end
 
   it "accepts options" do
-    cached_file = @attacher.cache!(fakeio, metadata: { "foo" => "foo" })
-    assert_equal "foo", cached_file.metadata["foo"]
-    @attacher.assign(cached_file.data, foo: "bar")
+    cached_file = @attacher.cache!(fakeio, metadata: { "foo" => "bar" })
+    assert_equal "bar", cached_file.metadata["foo"]
+    @attacher.assign(cached_file.data, foo: :bar)
     assert_equal cached_file, @attacher.get
   end
 end

test/plugin/rack_file_test.rb

@@ -82,6 +82,13 @@ def [](name)
     assert_equal "image/jpeg", @attacher.get.mime_type
   end
 
+  it "accepts assign options" do
+    @attacher.assign(@rack_hash, metadata: { "foo" => "bar" })
+    assert_equal "bar", @attacher.get.metadata["foo"]
+    @attacher.assign(fakeio, metadata: { "foo" => "bar" })
+    assert_equal "bar", @attacher.get.metadata["foo"]
+  end
+
   deprecated "supports uploading Rack files directly" do
     uploaded_file = @attacher.store.upload(@rack_hash)