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begin
require 'power_assert'
rescue LoadError, SyntaxError
end
module Test
module Unit
module Util
module BacktraceFilter
TESTUNIT_FILE_SEPARATORS = %r{[\\/:]}
TESTUNIT_PREFIX = __FILE__.split(TESTUNIT_FILE_SEPARATORS)[0..-3]
TESTUNIT_RB_FILE = /\.rb\Z/
POWERASSERT_PREFIX =
defined?(PowerAssert) ?
PowerAssert.method(:start).source_location[0].split(TESTUNIT_FILE_SEPARATORS)[0..-2] :
nil
module_function
def filter_backtrace(backtrace, prefix=nil)
return ["No backtrace"] unless backtrace
return backtrace if ENV["TEST_UNIT_ALL_BACKTRACE"]
if prefix
split_prefixes = [prefix.split(TESTUNIT_FILE_SEPARATORS)]
else
split_prefixes = [TESTUNIT_PREFIX, POWERASSERT_PREFIX].compact
end
test_unit_internal_p = lambda do |entry|
components = entry.split(TESTUNIT_FILE_SEPARATORS)
split_prefixes.any? do |split_prefix|
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
end
in_user_code = false
new_backtrace = backtrace.reverse.reject do |entry|
if test_unit_internal_p.call(entry)
in_user_code = true
true
else
not in_user_code
end
end.reverse
if new_backtrace.empty?
new_backtrace = backtrace.reject do |entry|
test_unit_internal_p.call(entry)
end
new_backtrace = backtrace if new_backtrace.empty?
end
new_backtrace
end
end
end
end
end