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

### Home Classes Methods

### In Files

- lib/test/unit/util/backtracefilter.rb

### Methods

- #filter_backtrace

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No matching classes.

# Test::Unit::Util::BacktraceFilter

### Constants

TESTUNIT_FILE_SEPARATORS
TESTUNIT_PREFIX
TESTUNIT_RB_FILE

### Public Instance Methods

filter_backtrace(backtrace, prefix=nil) click to toggle source

    # File lib/test/unit/util/backtracefilter.rb, line 10
    def filter_backtrace(backtrace, prefix=nil)
      return ["No backtrace"] unless backtrace
      return backtrace if ENV["TEST_UNIT_ALL_BACKTRACE"]

      if prefix
        split_prefix = prefix.split(TESTUNIT_FILE_SEPARATORS)
      else
        split_prefix = TESTUNIT_PREFIX
      end
      test_unit_internal_p = lambda do |entry|
        components = entry.split(TESTUNIT_FILE_SEPARATORS)
        split_entry = components[0, split_prefix.size]
        next false unless split_entry[0..-2] == split_prefix[0..-2]
        split_entry[-1].sub(TESTUNIT_RB_FILE, '') == split_prefix[-1]
      end

      jruby_internal_p = lambda do |entry|
        entry.start_with?("org/jruby/")
      end

      found_prefix = false
      new_backtrace = backtrace.reverse.reject do |entry|
        if test_unit_internal_p.call(entry)
          found_prefix = true
          true
        elsif found_prefix
          jruby_internal_p.call(entry)
        else
          true
        end
      end.reverse

      if new_backtrace.empty?
        new_backtrace = backtrace.reject do |entry|
          test_unit_internal_p.call(entry) or jruby_internal_p.call(entry)
        end
        new_backtrace = backtrace if new_backtrace.empty?
      end
      new_backtrace
    end

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