catch_parseerror.rb

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do
  source "https://rubygems.org"
  gem "rails", github: "rails/rails"
end

require "action_dispatch"
require "action_dispatch/http/parameters"

require "minitest/autorun"
require "rack/test"

class BugTest < Minitest::Test
  def test_catches_parseerror
    begin
      new_parseerror
      assert false, "should have raised ParseError"
    rescue ActionDispatch::ParamsParser::ParseError
      assert true, "caught ParseError"
    end
  end

  private

  def new_parseerror
    1/0
  rescue
    raise ActionDispatch::ParamsParser::ParseError.new
  end
end