How to show longer traces in Rails TestCases

Question

Is there a config variable to set, or some other way to get Rails ActiveSupport::TestCase to show more than one trace line? It is really hard to de

Answer 1

You can customize Minitest stack traces like this for example:

class MyBacktraceFilter
  def filter bt
    bt.dup.reject{|x| not x.to_s =~ /#{::Rails.root.to_s}/}
  end
end
MiniTest.backtrace_filter = MyBacktraceFilter.new

The filter method accepts the full stack trace in the bt parameter as an array and returns the filtered array. If you want the entire stack to show simply pass the input:

class MyBacktraceFilter
  def filter bt
    bt
  end
end
MiniTest.backtrace_filter = MyBacktraceFilter.new