Question

I am trying to write fails and errors that occur in the test to a log file, so that they don’t appear on-screen, but it appears as though errors and assert failures write to STDOUT instead of STDERR. I have been unable to find information on how to redirect this output after hours of googling, and would greatly appreciate help.

Answer 1

Why should the errors not be on stdout?
Up to now I have no prepared solution to suppress the output for specific errors.

If you accept the unchanged output, I have a solution to store errors and failures in a file. It will be no problem to create a 2nd file for Notifications…

gem 'test-unit'
require 'test/unit'

module Test
  module Unit
    class TestSuite
      alias :old_run :run
      def run(result, &progress_block)
        old_run(result, &progress_block)
        File.open('test.log', 'w'){|f|
          result.faults.each{|err|
            case err
              when Test::Unit::Error, Test::Unit::Failure
                f << err.long_display
                f << "\n===========\n"
              #not in log file
              when Test::Unit::Pending, Test::Unit::Notification, Test::Unit::Omission
              end
          }
        }
      end
    end
  end
end


class MyTest < Test::Unit::TestCase

  def test_1()
    assert_equal( 3, 1+1) #failure
  end
  def test_2()
    1 / 0 #force an error
  end
  def test_3()
    notify 'sss'
  end
  def test_4()
    pend "MeineKlasse.new"
  end
  def test_5
    omit 'aaa' if RUBY_VERSION == '1.9.2'
  end

  def test_5
    assert_in_delta( 0.1, 0.00001, 1.0/10)
  end

end