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require 'stringio'
module RSpec
module Support
class StdErrSplitter
def initialize(original)
@orig_stderr = original
@output_tracker = ::StringIO.new
@last_line = nil
end
respond_to_name = (::RUBY_VERSION.to_f < 1.9) ? :respond_to? : :respond_to_missing?
define_method respond_to_name do |*args|
@orig_stderr.respond_to?(*args) || super(*args)
end
def method_missing(name, *args, &block)
@output_tracker.__send__(name, *args, &block) if @output_tracker.respond_to?(name)
@orig_stderr.__send__(name, *args, &block)
end
def ==(other)
@orig_stderr == other
end
def reopen(*args)
reset!
@orig_stderr.reopen(*args)
end
# To work around JRuby error:
# can't convert RSpec::Support::StdErrSplitter into String
def to_io
@orig_stderr.to_io
end
# To work around JRuby error:
# TypeError: $stderr must have write method, RSpec::StdErrSplitter given
def write(line)
return if line =~ %r{^\S+/gems/\S+:\d+: warning:} # http://rubular.com/r/kqeUIZOfPG
# Ruby 2.7.0 warnings from keyword arguments span multiple lines, extend check above
# to look for the next line.
return if @last_line =~ %r{^\S+/gems/\S+:\d+: warning:} &&
line =~ %r{warning: The called method .* is defined here}
# Ruby 2.7.0 complains about hashes used in place of keyword arguments
# Aruba 0.14.2 uses this internally triggering that here
return if line =~ %r{lib/ruby/2\.7\.0/fileutils\.rb:622: warning:}
@orig_stderr.write(line)
@output_tracker.write(line)
ensure
@last_line = line
end
def has_output?
!output.empty?
end
def reset!
@output_tracker = ::StringIO.new
end
def verify_no_warnings!
raise "Warnings were generated: #{output}" if has_output?
reset!
end
def output
@output_tracker.string
end
end
end
end
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