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# frozen_string_literal: false
require 'net/smtp'
require 'stringio'
require 'test/unit'
module Net
class TestSMTP < Test::Unit::TestCase
class FakeSocket
attr_reader :write_io
def initialize out = "250 OK\n"
@write_io = StringIO.new
@read_io = StringIO.new out
end
def writeline line
@write_io.write "#{line}\r\n"
end
def readline
line = @read_io.gets
raise 'ran out of input' unless line
line.chop
end
end
def test_critical
smtp = Net::SMTP.new 'localhost', 25
assert_raise RuntimeError do
smtp.send :critical do
raise 'fail on purpose'
end
end
assert_kind_of Net::SMTP::Response, smtp.send(:critical),
'[Bug #9125]'
end
def test_esmtp
smtp = Net::SMTP.new 'localhost', 25
assert smtp.esmtp
assert smtp.esmtp?
smtp.esmtp = 'omg'
assert_equal 'omg', smtp.esmtp
assert_equal 'omg', smtp.esmtp?
end
def test_rset
smtp = Net::SMTP.new 'localhost', 25
smtp.instance_variable_set :@socket, FakeSocket.new
assert smtp.rset
end
def test_mailfrom
sock = FakeSocket.new
smtp = Net::SMTP.new 'localhost', 25
smtp.instance_variable_set :@socket, sock
assert smtp.mailfrom("foo@example.com").success?
assert_equal "MAIL FROM:<foo@example.com>\r\n", sock.write_io.string
end
def test_rcptto
sock = FakeSocket.new
smtp = Net::SMTP.new 'localhost', 25
smtp.instance_variable_set :@socket, sock
assert smtp.rcptto("foo@example.com").success?
assert_equal "RCPT TO:<foo@example.com>\r\n", sock.write_io.string
end
def test_auth_plain
sock = FakeSocket.new
smtp = Net::SMTP.new 'localhost', 25
smtp.instance_variable_set :@socket, sock
assert smtp.auth_plain("foo", "bar").success?
assert_equal "AUTH PLAIN AGZvbwBiYXI=\r\n", sock.write_io.string
end
def test_crlf_injection
smtp = Net::SMTP.new 'localhost', 25
smtp.instance_variable_set :@socket, FakeSocket.new
assert_raise(ArgumentError) do
smtp.mailfrom("foo\r\nbar")
end
assert_raise(ArgumentError) do
smtp.mailfrom("foo\rbar")
end
assert_raise(ArgumentError) do
smtp.mailfrom("foo\nbar")
end
assert_raise(ArgumentError) do
smtp.rcptto("foo\r\nbar")
end
end
end
end
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