From a4161b7649c5aec6ff4d857863e0e829f9d7fde8 Mon Sep 17 00:00:00 2001
From: Benoit Daloze <eregontp@gmail.com>
Date: Thu, 30 May 2019 22:11:24 +0200
Subject: [PATCH] Update to ruby/spec@0ba5312

---
 spec/ruby/library/socket/fixtures/classes.rb  | 29 ++++++++++
 .../socket/socket/tcp_server_loop_spec.rb     | 56 +++++++++----------
 .../socket/socket/udp_server_loop_spec.rb     |  8 ++-
 3 files changed, 61 insertions(+), 32 deletions(-)

diff --git a/spec/ruby/library/socket/fixtures/classes.rb b/spec/ruby/library/socket/fixtures/classes.rb
index 6cc7ecb389..ebed66851d 100644
--- a/spec/ruby/library/socket/fixtures/classes.rb
+++ b/spec/ruby/library/socket/fixtures/classes.rb
@@ -132,4 +132,33 @@ module SocketSpecs
       @logger.puts message if @logger
     end
   end
+
+  # We need to find a free port for Socket.tcp_server_loop and Socket.udp_server_loop,
+  # and the only reliable way to do that is to pass 0 as the port, but then we need to
+  # find out which one was chosen and the API doesn't let us find what it is. So we
+  # intercept one of the public API methods called by these methods.
+  class ServerLoopPortFinder < Socket
+    def self.tcp_server_sockets(*args)
+      super(*args) { |sockets|
+        @port = sockets.first.local_address.ip_port
+        yield(sockets)
+      }
+    end
+
+    def self.udp_server_sockets(*args, &block)
+      super(*args) { |sockets|
+        @port = sockets.first.local_address.ip_port
+        yield(sockets)
+      }
+    end
+
+    def self.cleanup
+      @port = nil
+    end
+
+    def self.port
+      sleep 0.001 until @port
+      @port
+    end
+  end
 end
diff --git a/spec/ruby/library/socket/socket/tcp_server_loop_spec.rb b/spec/ruby/library/socket/socket/tcp_server_loop_spec.rb
index 603e7b3450..05ecad67d1 100644
--- a/spec/ruby/library/socket/socket/tcp_server_loop_spec.rb
+++ b/spec/ruby/library/socket/socket/tcp_server_loop_spec.rb
@@ -11,7 +11,7 @@ describe 'Socket.tcp_server_loop' do
   describe 'when a connection is available' do
     before do
       @client = Socket.new(:INET, :STREAM)
-      @port   = 9998
+      SocketSpecs::ServerLoopPortFinder.cleanup
     end
 
     after do
@@ -19,38 +19,36 @@ describe 'Socket.tcp_server_loop' do
       @client.close
     end
 
-    # Not working since ruby/ruby a66bc2c01194a9c017c874a30db5b3b6bd95e966
-    # https://travis-ci.org/ruby/ruby/jobs/538438184
-    platform_is_not :darwin do
-      it 'yields a Socket and an Addrinfo' do
-        @sock, addr = nil
+    it 'yields a Socket and an Addrinfo' do
+      @sock, addr = nil
 
-        thread = Thread.new do
-          Socket.tcp_server_loop('127.0.0.1', @port) do |socket, addrinfo|
-            @sock = socket
-            addr = addrinfo
+      thread = Thread.new do
+        SocketSpecs::ServerLoopPortFinder.tcp_server_loop('127.0.0.1', 0) do |socket, addrinfo|
+          @sock = socket
+          addr = addrinfo
 
-            break
-          end
+          break
         end
-
-        SocketSpecs.loop_with_timeout do
-          begin
-            @client.connect(Socket.sockaddr_in(@port, '127.0.0.1'))
-          rescue SystemCallError
-            sleep 0.01
-            :retry
-          end
-        end
-
-        # At this point the connection has been set up but the thread may not yet
-        # have returned, thus we'll need to wait a little longer for it to
-        # complete.
-        thread.join(2)
-
-        @sock.should be_an_instance_of(Socket)
-        addr.should be_an_instance_of(Addrinfo)
       end
+
+      port = SocketSpecs::ServerLoopPortFinder.port
+
+      SocketSpecs.loop_with_timeout do
+        begin
+          @client.connect(Socket.sockaddr_in(port, '127.0.0.1'))
+        rescue SystemCallError
+          sleep 0.01
+          :retry
+        end
+      end
+
+      # At this point the connection has been set up but the thread may not yet
+      # have returned, thus we'll need to wait a little longer for it to
+      # complete.
+      thread.join(2)
+
+      @sock.should be_an_instance_of(Socket)
+      addr.should be_an_instance_of(Addrinfo)
     end
   end
 end
diff --git a/spec/ruby/library/socket/socket/udp_server_loop_spec.rb b/spec/ruby/library/socket/socket/udp_server_loop_spec.rb
index c6abfb4eb9..168c17545f 100644
--- a/spec/ruby/library/socket/socket/udp_server_loop_spec.rb
+++ b/spec/ruby/library/socket/socket/udp_server_loop_spec.rb
@@ -11,7 +11,7 @@ describe 'Socket.udp_server_loop' do
   describe 'when a connection is available' do
     before do
       @client = Socket.new(:INET, :DGRAM)
-      @port   = 9997
+      SocketSpecs::ServerLoopPortFinder.cleanup
     end
 
     after do
@@ -22,7 +22,7 @@ describe 'Socket.udp_server_loop' do
       msg, src = nil
 
       Thread.new do
-        Socket.udp_server_loop('127.0.0.1', @port) do |message, source|
+        SocketSpecs::ServerLoopPortFinder.udp_server_loop('127.0.0.1', 0) do |message, source|
           msg = message
           src = source
 
@@ -30,9 +30,11 @@ describe 'Socket.udp_server_loop' do
         end
       end
 
+      port = SocketSpecs::ServerLoopPortFinder.port
+
       # Because this will return even if the server is up and running (it's UDP
       # after all) we'll have to write and wait until "msg" is set.
-      @client.connect(Socket.sockaddr_in(@port, '127.0.0.1'))
+      @client.connect(Socket.sockaddr_in(port, '127.0.0.1'))
 
       SocketSpecs.loop_with_timeout do
         begin