# File test/test_Error.rb, line 277
    def test_filter_defined?
      @Error.filter_error = {
        :filter => 'Filter',
        :arguments => [
          'foo',
          'bar'
        ],
        :attach_path => '/error',
        :attach_mask => nil,
        :exception => RuntimeError.new('test')
      }
      assert(@Error.filter_defined?)
      @Error.filter_error = {
        :filter => 'Foo',
        :arguments => [],
        :attach_path => '/',
        :attach_mask => nil,
        :exception => RuntimeError.new('nothing')
      }
      assert(! @Error.filter_defined?)
    end