test/net/smtp - use TCPSocket when UNIXSocket unavailable

Author: MSP-Greg

test/net/smtp/test_sslcontext.rb

@@ -39,7 +39,8 @@ def teardown
     end
 
     def start_smtpd(starttls)
-      @server_socket, @client_socket = UNIXSocket.pair
+      @server_socket, @client_socket = Object.const_defined?(:UNIXSocket) ?
+        UNIXSocket.pair : Socket.pair(:INET, :STREAM, 0)
       @starttls_executed = false
       @server_thread = Thread.new(@server_socket) do |s|
         s.puts "220 fakeserver\r\n"
@@ -125,4 +126,4 @@ def test_start_without_tls_hostname
     end
 
   end
-end unless /mswin|mingw/ =~ RUBY_PLATFORM
+end

test/net/smtp/test_starttls.rb

@@ -25,7 +25,8 @@ def teardown
     end
 
     def start_smtpd(starttls)
-      @server_socket, @client_socket = UNIXSocket.pair
+      @server_socket, @client_socket = Object.const_defined?(:UNIXSocket) ?
+        UNIXSocket.pair : Socket.pair(:INET, :STREAM, 0)
       @starttls_executed = false
       @server_thread = Thread.new(@server_socket) do |s|
         s.puts "220 fakeserver\r\n"
@@ -118,4 +119,4 @@ def test_enable_starttls_and_enable_starttls_auto
       assert_nothing_raised { smtp.enable_starttls_auto }
     end
   end
-end unless /mswin|mingw/ =~ RUBY_PLATFORM
+end