rubocop: fix various style issues.

test/unit/downloads/file_test.rb

@@ -10,7 +10,7 @@ module Downloads
       end
 
       teardown do
-        ENV["SKIP_CLOUDFLARE_CHECK"] = nil        
+        ENV["SKIP_CLOUDFLARE_CHECK"] = nil
       end
 
       context "for a banned IP" do
@@ -59,7 +59,7 @@ module Downloads
 
           HTTParty.expects(:get).twice.multiple_yields(chunk, bomb).then.multiple_yields(chunk, chunk).returns(resp)
           @download.stubs(:is_cloudflare?).returns(false)
-          tempfile, _ = @download.download!
+          tempfile, _strategy = @download.download!
 
           assert_equal("aa", tempfile.read)
         end
@@ -78,7 +78,7 @@ module Downloads
 
       should "correctly save the file when following 302 redirects" do
         download = Downloads::File.new("https://yande.re/post/show/578014")
-        file, strategy  = download.download!(url: download.preview_url)
+        file, strategy = download.download!(url: download.preview_url)
         assert_equal(19134, file.size)
       end
     end

test/unit/downloads/pixiv_test.rb

@@ -109,7 +109,6 @@ module Downloads
           assert_not_rewritten(@file_url)
           assert_downloaded(@file_size, @file_url)
         end
-
       end
 
       context "downloading a background image" do
@@ -157,9 +156,9 @@ module Downloads
       should "capture the data" do
         assert_equal(2, @download.data[:ugoira_frame_data].size)
         if @download.data[:ugoira_frame_data][0]["file"]
-          assert_equal([{"file"=>"000000.jpg", "delay"=>125}, {"file"=>"000001.jpg", "delay"=>125}], @download.data[:ugoira_frame_data])
+          assert_equal([{"file" => "000000.jpg", "delay" => 125}, {"file" => "000001.jpg", "delay" => 125}], @download.data[:ugoira_frame_data])
         else
-          assert_equal([{"delay_msec"=>125}, {"delay_msec"=>125}], @download.data[:ugoira_frame_data])
+          assert_equal([{"delay_msec" => 125}, {"delay_msec" => 125}], @download.data[:ugoira_frame_data])
         end
       end
     end

test/unit/downloads/tumblr_test.rb

@@ -4,7 +4,7 @@ module Downloads
   class TumblrTest < ActiveSupport::TestCase
     # Currently there's no way to obtain the raw version of these images,
     # so we have to change the tests to validate against the 1280 version
-    
+
     context "a download for a tumblr 500 sample" do
       should "instead download the 1280 version" do
         skip "Tumblr keys are not set" unless Danbooru.config.tumblr_consumer_key