Clean up upload specs

spec/adamantium/unit/commands/media/upload_spec.rb

@@ -1,26 +1,33 @@
 # frozen_string_literal: true
 
 require "dry/monads"
+require "base64"
 
 RSpec.describe Adamantium::Commands::Media::Upload do
   subject { described_class.new }
 
   it "saves a file and returns its URL" do
+    image = "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg=="
+    tempfile = Tempfile.new(["test", ".jpg"])
+    tempfile.write Base64.decode64(image)
+    tempfile.rewind
     file = {
-      filename: "foo.txt",
-      tempfile: Tempfile.new
+      filename: "foo.jpg",
+      tempfile: tempfile
     }
 
     result = subject.call(file: file)
-    expected_path = /media\/#{Time.now.strftime("%m-%Y")}\/[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}.txt/
+    expected_path = /media\/#{Time.now.strftime("%m-%Y")}\/[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}.jpg/
     expect(result).to be_success
     expect(result.value!).to match expected_path
     File.read("public/#{result.value!.gsub("http://localhost/", "")}")
     File.delete("public/#{result.value!.gsub("http://localhost/", "")}")
+    tempfile.close
+    tempfile.unlink
   end
 
   it "returns a Failure if the file couldn't be saved" do
-    file = {filename: "file.txt", tempfile: ""}
+    file = {filename: "file.txt", tempfile: Tempfile.new}
 
     result = subject.call(file: file)
     expect(result).to be_failure