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require 'mspec/guards/feature'
class IOStub
def initialize
@buffer = []
@output = ''
end
def write(*str)
self << str.join
end
def << str
@buffer << str
self
end
def print(*str)
write(str.join + $\.to_s)
end
def method_missing(name, *args, &block)
to_s.send(name, *args, &block)
end
def == other
to_s == other
end
def =~ other
to_s =~ other
end
def puts(*str)
if str.empty?
write "\n"
else
write(str.collect { |s| s.to_s.chomp }.concat([nil]).join("\n"))
end
end
def printf(format, *args)
self << sprintf(format, *args)
end
def flush
@output += @buffer.join('')
@buffer.clear
self
end
def to_s
flush
@output
end
alias_method :to_str, :to_s
def inspect
to_s.inspect
end
end
# Creates a "bare" file descriptor (i.e. one that is not associated
# with any Ruby object). The file descriptor can safely be passed
# to IO.new without creating a Ruby object alias to the fd.
def new_fd(name, mode = "w:utf-8")
if mode.kind_of? Hash
if mode.key? :mode
mode = mode[:mode]
else
raise ArgumentError, "new_fd options Hash must include :mode"
end
end
IO.sysopen name, mode
end
# Creates an IO instance for a temporary file name. The file
# must be deleted.
def new_io(name, mode = "w:utf-8")
if Hash === mode # Avoid kwargs warnings on Ruby 2.7+
File.new(name, **mode)
else
File.new(name, mode)
end
end
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