# File lib/test/unit/assertions.rb, line 1734 def max_diff_target_string_size return @@max_diff_target_string_size if @@max_diff_target_string_size size = ENV["TEST_UNIT_MAX_DIFF_TARGET_STRING_SIZE"] if size begin size = Integer(size) rescue ArgumentError size = nil end end size || MAX_DIFF_TARGET_STRING_SIZE end