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require 'mspec/guards/version'
# Always enable deprecation warnings when running MSpec, as ruby/spec tests for them,
# and like in most test frameworks, all warnings should be enabled by default (same as -w).
if Object.const_defined?(:Warning) and Warning.respond_to?(:[]=)
Warning[:deprecated] = true
end
if Object.const_defined?(:Warning) and Warning.respond_to?(:warn)
def Warning.warn(message)
# Suppress any warning inside the method to prevent recursion
verbose = $VERBOSE
$VERBOSE = nil
if Thread.current[:in_mspec_complain_matcher]
return $stderr.write(message)
end
case message
# $VERBOSE = true warnings
when /(.+\.rb):(\d+):.+possibly useless use of (<|<=|==|>=|>) in void context/
# Make sure there is a .should otherwise it is missing
line_nb = Integer($2)
unless File.exist?($1) and /\.should(_not)? (<|<=|==|>=|>)/ === File.readlines($1)[line_nb-1]
$stderr.write message
end
when /possibly useless use of (\+|-) in void context/
when /assigned but unused variable/
when /method redefined/
when /previous definition of/
when /instance variable @.+ not initialized/
when /statement not reached/
when /shadowing outer local variable/
when /setting Encoding.default_(in|ex)ternal/
when /unknown (un)?pack directive/
when /(un)?trust(ed\?)? is deprecated/
when /\.exists\? is a deprecated name/
when /Float .+ out of range/
when /passing a block to String#(bytes|chars|codepoints|lines) is deprecated/
when /core\/string\/modulo_spec\.rb:\d+: warning: too many arguments for format string/
when /regexp\/shared\/new_ascii(_8bit)?\.rb:\d+: warning: Unknown escape .+ is ignored/
# $VERBOSE = false warnings
when /constant ::(Fixnum|Bignum) is deprecated/
when /\/(argf|io|stringio)\/.+(ARGF|IO)#(lines|chars|bytes|codepoints) is deprecated/
when /Thread\.exclusive is deprecated.+\n.+thread\/exclusive_spec\.rb/
when /hash\/shared\/index\.rb:\d+: warning: Hash#index is deprecated; use Hash#key/
when /env\/shared\/key\.rb:\d+: warning: ENV\.index is deprecated; use ENV\.key/
when /exponent(_spec)?\.rb:\d+: warning: in a\*\*b, b may be too big/
when /enumerator\/(new_spec|initialize_spec)\.rb:\d+: warning: Enumerator\.new without a block is deprecated/
when /Pattern matching is experimental, and the behavior may change in future versions of Ruby!/
else
$stderr.write message
end
ensure
$VERBOSE = verbose
end
else
$VERBOSE = nil unless ENV['OUTPUT_WARNINGS']
end
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