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require File.expand_path('../../../spec_helper', __FILE__)
require 'etc'
describe "Etc.getlogin" do
it "returns the name associated with the current login activity" do
getlogin_null = false
# POSIX logname(1) shows getlogin(2)'s result
# NOTE: Etc.getlogin returns ENV['USER'] if getlogin(2) returns NULL
begin
# make Etc.getlogin to return nil if getlogin(3) returns NULL
envuser, ENV['USER'] = ENV['USER'], nil
if Etc.getlogin
if ENV['TRAVIS'] and platform_is(:darwin)
# See https://travis-ci.org/ruby/spec/jobs/285967744
# and https://travis-ci.org/ruby/spec/jobs/285999602
Etc.getlogin.should be_an_instance_of(String)
else
# Etc.getlogin returns the same result of logname(2)
# if it returns non NULL
Etc.getlogin.should == `id -un`.chomp
end
else
# Etc.getlogin may return nil if the login name is not set
# because of chroot or sudo or something.
Etc.getlogin.should be_nil
getlogin_null = true
end
ensure
ENV['USER'] = envuser
end
# if getlogin(2) returns NULL, Etc.getlogin returns ENV['USER']
if getlogin_null
Etc.getlogin.should == ENV['USER']
end
end
end
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