expose bulk revert interface

test/unit/bulk_revert_test.rb

@@ -0,0 +1,18 @@
+require 'test_helper'
+
+class BulkRevertTest < ActiveSupport::TestCase
+  context "#find_post_versions" do
+    subject do
+      BulkRevert.new(added_tags: "hoge")
+    end
+
+    setup do
+      subject.expects(:query_gbq).returns([1,2,3])
+    end
+
+    should "revert all changes found in a search" do
+      q = subject.find_post_versions
+      assert_match(/post_versions\.id in \(1,2,3\)/, q.to_sql)
+    end
+  end
+end