brew/Library/Homebrew/test/formula_free_port_spec.rb
Alexander Bayandin bfcba0f5f0 Library/Homebrew: add free_port test helper
Co-Authored-By: Mike McQuaid <mike@mikemcquaid.com>
2020-03-31 00:00:11 +01:00

26 lines
582 B
Ruby

# frozen_string_literal: true
require "socket"
require "formula_free_port"
module Homebrew
describe FreePort do
include described_class
describe "#free_port" do
# IANA suggests user port from 1024 to 49151
# and dynamic port for 49152 to 65535
# http://www.iana.org/assignments/port-numbers
MIN_PORT = 1024
MAX_PORT = 65535
it "returns a free TCP/IP port" do
port = free_port
expect(port).to be_between(MIN_PORT, MAX_PORT)
expect { TCPServer.new(port).close }.not_to raise_error
end
end
end
end