class TestCodeSnippet::TestJRuby

# File test-unit-3.3.4/test/test-code-snippet.rb, line 10
def test_error_inside_jruby
  jruby_only_test

  backtrace = backtrace_from_jruby
  no_rb_entries = backtrace.find_all do |(file, _, _)|
    File.extname(file) != ".rb"
  end

  fetcher = Test::Unit::CodeSnippetFetcher.new
  snippets = no_rb_entries.collect do |(file, line, _)|
    fetcher.fetch(file, line)
  end
  assert_equal([[]] * no_rb_entries.size,
               snippets)
end

# File test-unit-3.3.4/test/test-code-snippet.rb, line 27
def backtrace_from_jruby
  begin
    java.util.Vector.new(-1)
  rescue Exception
    $@.collect do |entry|
      entry.split(/:/, 3)
    end
  else
    flunk("failed to raise an exception from JRuby.")
  end
end