tests: fix unused_port

test/command/test_cat.rb

@@ -18,7 +18,7 @@ def setup
     @primary = create_primary
     metadata = @primary.buffer.new_metadata
     @chunk = create_chunk(@primary, metadata, @es)
-    @port = unused_port
+    @port = unused_port(protocol: :tcp)
   end
 
   def teardown

test/command/test_fluentd.rb

@@ -1175,7 +1175,7 @@ def multi_workers_ready?; true; end
     end
   end
 
-  sub_test_case 'sahred socket options' do
+  sub_test_case 'shared socket options' do
     test 'enable shared socket by default' do
       conf = ""
       conf_path = create_conf_file('empty.conf', conf)

test/helper.rb

@@ -71,17 +71,31 @@ class Test::Unit::AssertionFailedError < StandardError
 
 include Fluent::Test::Helpers
 
-def unused_port(num = 1, protocol: :tcp, bind: "0.0.0.0")
+def unused_port(num = 1, protocol:, bind: "0.0.0.0")
   case protocol
-  when :tcp
+  when :tcp, :tls
     unused_port_tcp(num)
   when :udp
     unused_port_udp(num, bind: bind)
+  when :all
+    unused_port_tcp_udp(num)
   else
     raise ArgumentError, "unknown protocol: #{protocol}"
   end
 end
 
+def unused_port_tcp_udp(num = 1)
+  raise "not support num > 1" if num > 1
+
+  # The default maximum number of file descriptors in macOS is 256.
+  # It might need to set num to a smaller value than that.
+  tcp_ports = unused_port_tcp(200)
+  port = unused_port_udp(1, port_list: tcp_ports)
+  raise "can't find unused port" unless port
+
+  port
+end
+
 def unused_port_tcp(num = 1)
   ports = []
   sockets = []
@@ -90,7 +104,7 @@ def unused_port_tcp(num = 1)
     sockets << s
     ports << s.addr[1]
   end
-  sockets.each{|s| s.close }
+  sockets.each(&:close)
   if num == 1
     return ports.first
   else
@@ -100,21 +114,27 @@ def unused_port_tcp(num = 1)
 
 PORT_RANGE_AVAILABLE = (1024...65535)
 
-def unused_port_udp(num = 1, bind: "0.0.0.0")
+def unused_port_udp(num = 1, port_list: [], bind: "0.0.0.0")
   family = IPAddr.new(IPSocket.getaddress(bind)).ipv4? ? ::Socket::AF_INET : ::Socket::AF_INET6
   ports = []
   sockets = []
-  while ports.size < num
-    port = rand(PORT_RANGE_AVAILABLE)
+
+  use_random_port = port_list.empty?
+  i = 0
+  loop do
+    port = use_random_port ? rand(PORT_RANGE_AVAILABLE) : port_list[i]
     u = UDPSocket.new(family)
     if (u.bind(bind, port) rescue nil)
       ports << port
       sockets << u
     else
       u.close
     end
+    i += 1
+    break if ports.size >= num
+    break if !use_random_port && i >= port_list.size
   end
-  sockets.each{|s| s.close }
+  sockets.each(&:close)
   if num == 1
     return ports.first
   else

test/plugin/test_in_forward.rb

@@ -18,7 +18,8 @@ def setup
     Fluent::Test.setup
     @responses = []  # for testing responses after sending data
     @d = nil
-    @port = unused_port
+    # forward plugin uses TCP and UDP sockets on the same port number
+    @port = unused_port(protocol: :all)
   end
 
   def teardown

test/plugin/test_in_http.rb

@@ -18,7 +18,7 @@ def shutdown
 
   def setup
     Fluent::Test.setup
-    @port = unused_port
+    @port = unused_port(protocol: :tcp)
   end
 
   def teardown

test/plugin/test_in_monitor_agent.rb

@@ -392,7 +392,7 @@ def test_enable_input_metrics(with_config)
     end
 
     test "emit" do
-      port = unused_port
+      port = unused_port(protocol: :tcp)
       d = create_driver("
   @type monitor_agent
   bind '127.0.0.1'
@@ -451,7 +451,7 @@ def get(uri, header = {})
 
   sub_test_case "servlets" do
     setup do
-      @port = unused_port
+      @port = unused_port(protocol: :tcp)
       # check @type and type in one configuration
       conf = <<-EOC
 <source>
@@ -759,7 +759,7 @@ def write(chunk)
     end
 
     setup do
-      @port = unused_port
+      @port = unused_port(protocol: :tcp)
       # check @type and type in one configuration
       conf = <<-EOC
 <source>
@@ -840,7 +840,7 @@ def write(chunk)
 
   sub_test_case "check the port number of http server" do
     test "on single worker environment" do
-      port = unused_port
+      port = unused_port(protocol: :tcp)
       d = create_driver("
   @type monitor_agent
   bind '127.0.0.1'
@@ -851,7 +851,7 @@ def write(chunk)
     end
 
     test "worker_id = 2 on multi worker environment" do
-      port = unused_port
+      port = unused_port(protocol: :tcp)
       Fluent::SystemConfig.overwrite_system_config('workers' => 4) do
         d = Fluent::Test::Driver::Input.new(Fluent::Plugin::MonitorAgentInput)
         d.instance.instance_eval{ @_fluentd_worker_id = 2 }
@@ -905,7 +905,7 @@ def filter(tag, time, record)
     end
 
     test "plugins have a variable named buffer does not throws NoMethodError" do
-      port = unused_port
+      port = unused_port(protocol: :tcp)
       d = create_driver("
   @type monitor_agent
   bind '127.0.0.1'

test/plugin/test_in_syslog.rb

@@ -5,24 +5,24 @@
 class SyslogInputTest < Test::Unit::TestCase
   def setup
     Fluent::Test.setup
-    @port = unused_port
+    @port = unused_port(protocol: :udp)
   end
 
   def teardown
     @port = nil
   end
 
-  def ipv4_config
+  def ipv4_config(port = @port)
     %[
-      port #{@port}
+      port #{port}
       bind 127.0.0.1
       tag syslog
     ]
   end
 
-  def ipv6_config
+  def ipv6_config(port = @port)
     %[
-      port #{@port}
+      port #{port}
       bind ::1
       tag syslog
     ]
@@ -69,7 +69,8 @@ def test_configure_resolve_hostname(param)
        'Use transport and protocol' => ["protocol_type udp\n<transport tcp>\n </transport>", :udp, :tcp])
   def test_configure_protocol(param)
     conf, proto_type, transport_proto_type = *param
-    d = create_driver([ipv4_config, conf].join("\n"))
+    port = unused_port(protocol: proto_type ? proto_type : transport_proto_type)
+    d = create_driver([ipv4_config(port), conf].join("\n"))
 
     assert_equal(d.instance.protocol_type, proto_type)
     assert_equal(d.instance.transport_config.protocol, transport_proto_type)
@@ -158,12 +159,13 @@ def test_msg_size_udp_for_large_msg
   end
 
   def test_msg_size_with_tcp
-    d = create_driver([ipv4_config, "<transport tcp> \n</transport>"].join("\n"))
+    port = unused_port(protocol: :tcp)
+    d = create_driver([ipv4_config(port), "<transport tcp> \n</transport>"].join("\n"))
     tests = create_test_case
 
     d.run(expect_emits: 2) do
       tests.each {|test|
-        TCPSocket.open('127.0.0.1', @port) do |s|
+        TCPSocket.open('127.0.0.1', port) do |s|
           s.send(test['msg'], 0)
         end
       }
@@ -189,11 +191,12 @@ def test_emit_rfc5452
   end
 
   def test_msg_size_with_same_tcp_connection
-    d = create_driver([ipv4_config, "<transport tcp> \n</transport>"].join("\n"))
+    port = unused_port(protocol: :tcp)
+    d = create_driver([ipv4_config(port), "<transport tcp> \n</transport>"].join("\n"))
     tests = create_test_case
 
     d.run(expect_emits: 2) do
-      TCPSocket.open('127.0.0.1', @port) do |s|
+      TCPSocket.open('127.0.0.1', port) do |s|
         tests.each {|test|
           s.send(test['msg'], 0)
         }
@@ -347,12 +350,13 @@ def compare_test_result(events, tests, options = {})
 
   sub_test_case 'octet counting frame' do
     def test_msg_size_with_tcp
-      d = create_driver([ipv4_config, "<transport tcp> \n</transport>", 'frame_type octet_count'].join("\n"))
+      port = unused_port(protocol: :tcp)
+      d = create_driver([ipv4_config(port), "<transport tcp> \n</transport>", 'frame_type octet_count'].join("\n"))
       tests = create_test_case
 
       d.run(expect_emits: 2) do
         tests.each {|test|
-          TCPSocket.open('127.0.0.1', @port) do |s|
+          TCPSocket.open('127.0.0.1', port) do |s|
             s.send(test['msg'], 0)
           end
         }
@@ -363,11 +367,12 @@ def test_msg_size_with_tcp
     end
 
     def test_msg_size_with_same_tcp_connection
-      d = create_driver([ipv4_config, "<transport tcp> \n</transport>", 'frame_type octet_count'].join("\n"))
+      port = unused_port(protocol: :tcp)
+      d = create_driver([ipv4_config(port), "<transport tcp> \n</transport>", 'frame_type octet_count'].join("\n"))
       tests = create_test_case
 
       d.run(expect_emits: 2) do
-        TCPSocket.open('127.0.0.1', @port) do |s|
+        TCPSocket.open('127.0.0.1', port) do |s|
           tests.each {|test|
             s.send(test['msg'], 0)
           }
@@ -469,7 +474,8 @@ def test_emit_unmatched_lines_with_address
   end
 
   def test_send_keepalive_packet_is_disabled_by_default
-    d = create_driver(ipv4_config + %[
+    port = unused_port(protocol: :tcp)
+    d = create_driver(ipv4_config(port) + %[
       <transport tcp>
       </transport>
       protocol tcp
@@ -479,19 +485,20 @@ def test_send_keepalive_packet_is_disabled_by_default
 
   def test_send_keepalive_packet_can_be_enabled
     addr = "127.0.0.1"
-    d = create_driver(ipv4_config + %[
+    port = unused_port(protocol: :tcp)
+    d = create_driver(ipv4_config(port) + %[
       <transport tcp>
       </transport>
       send_keepalive_packet true
     ])
     assert_true d.instance.send_keepalive_packet
     mock.proxy(d.instance).server_create_connection(
-      :in_syslog_tcp_server, @port,
+      :in_syslog_tcp_server, port,
       bind: addr,
       resolve_name: nil,
       send_keepalive_packet: true)
     d.run do
-      TCPSocket.open(addr, @port)
+      TCPSocket.open(addr, port)
     end
   end
 

test/plugin/test_in_tcp.rb

@@ -5,7 +5,7 @@
 class TcpInputTest < Test::Unit::TestCase
   def setup
     Fluent::Test.setup
-    @port = unused_port
+    @port = unused_port(protocol: :tcp)
   end
 
   def teardown

test/plugin/test_in_udp.rb

@@ -5,7 +5,7 @@
 class UdpInputTest < Test::Unit::TestCase
   def setup
     Fluent::Test.setup
-    @port = unused_port
+    @port = unused_port(protocol: :udp)
   end
 
   def teardown

test/plugin/test_out_forward.rb

@@ -12,7 +12,8 @@ def setup
     FileUtils.rm_rf(TMP_DIR)
     FileUtils.mkdir_p(TMP_DIR)
     @d = nil
-    @target_port = unused_port
+    # forward plugin uses TCP and UDP sockets on the same port number
+    @target_port = unused_port(protocol: :all)
   end
 
   def teardown

test/plugin/test_out_stream.rb

@@ -54,7 +54,7 @@ class TcpOutputTest < Test::Unit::TestCase
 
   def setup
     super
-    @port = unused_port
+    @port = unused_port(protocol: :tcp)
   end
 
   def teardown

test/plugin_helper/test_http_server_helper.rb

@@ -14,7 +14,7 @@ class HttpHelperTest < Test::Unit::TestCase
   CERT_CA_DIR = File.expand_path(File.dirname(__FILE__) + '/data/cert/with_ca')
 
   def setup
-    @port = unused_port
+    @port = unused_port(protocol: :tcp)
   end
 
   def teardown