Module: Test::Unit::Util::BacktraceFilter

Included in:
Assertions::AssertionMessage, Error, TestCase
Defined in:
lib/test/unit/util/backtracefilter.rb

Constant Summary collapse

TESTUNIT_FILE_SEPARATORS = 
%r{[\\/:]}
TESTUNIT_PREFIX = 
__FILE__.split(TESTUNIT_FILE_SEPARATORS)[0..-3]
TESTUNIT_RB_FILE = 
/\.rb\Z/

Instance Method Summary collapse

Instance Method Details

#filter_backtrace(backtrace, prefix = nil) ⇒ Object 



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# File 'lib/test/unit/util/backtracefilter.rb', line 9

def filter_backtrace(backtrace, prefix=nil)
  return ["No backtrace"] unless(backtrace)
  split_p = if(prefix)
    prefix.split(TESTUNIT_FILE_SEPARATORS)
  else
    TESTUNIT_PREFIX
  end
  match = proc do |e|
    split_e = e.split(TESTUNIT_FILE_SEPARATORS)[0, split_p.size]
    next false unless(split_e[0..-2] == split_p[0..-2])
    split_e[-1].sub(TESTUNIT_RB_FILE, '') == split_p[-1]
  end
  return backtrace unless(backtrace.detect(&match))
  found_prefix = false
  new_backtrace = backtrace.reverse.reject do |e|
    if(match[e])
      found_prefix = true
      true
    elsif(found_prefix)
      false
    else
      true
    end
  end.reverse
  new_backtrace = (new_backtrace.empty? ? backtrace : new_backtrace)
  new_backtrace = new_backtrace.reject(&match)
  new_backtrace.empty? ? backtrace : new_backtrace
end