Skip tests on Windows

The do not work out of the box, I'm sure this can be fixed but I have no idea
how to do that.

Author: herwinw

test/test_cgi_server.rb

@@ -29,30 +29,31 @@ def setup_http_server_option(use_ssl)
   end
 
   def test_client_server
-    # NOTE: I don't enable SSL testing as this hangs
+    omit("The CGI file does not work on Windows") if Gem.win_platform?
+
     Tempfile.create("cgi-bin") do |tempfile|
       tempfile.write(cgi_bin_script)
       tempfile.close
       File.chmod(0755, tempfile.path)
 
-      [false].each do |use_ssl|
-        option = setup_http_server_option(use_ssl)
-        with_server(option, WEBrick::HTTPServlet::CGIHandler, tempfile.path) {|addr|
-          @s = XMLRPC::Client.new3(:host => addr.ip_address, :port => addr.ip_port, :use_ssl => use_ssl)
-          @s.user = 'admin'
-          @s.password = 'admin'
-          silent do
-            do_test
-          end
-          @s.http.finish
-          @s = XMLRPC::Client.new3(:host => addr.ip_address, :port => addr.ip_port, :use_ssl => use_ssl)
-          @s.user = '01234567890123456789012345678901234567890123456789012345678901234567890123456789'
-          @s.password = 'guest'
-          silent do
-            do_test
-          end
-          @s.http.finish
-        }
+      # NOTE: I don't enable SSL testing as this hangs
+      use_ssl = false
+      option = setup_http_server_option(use_ssl)
+      with_server(option, WEBrick::HTTPServlet::CGIHandler, tempfile.path) do |addr|
+        @s = XMLRPC::Client.new3(:host => addr.ip_address, :port => addr.ip_port, :use_ssl => use_ssl)
+        @s.user = 'admin'
+        @s.password = 'admin'
+        silent do
+          do_test
+        end
+        @s.http.finish
+        @s = XMLRPC::Client.new3(:host => addr.ip_address, :port => addr.ip_port, :use_ssl => use_ssl)
+        @s.user = '01234567890123456789012345678901234567890123456789012345678901234567890123456789'
+        @s.password = 'guest'
+        silent do
+          do_test
+        end
+        @s.http.finish
       end
     end
   end
@@ -68,43 +69,44 @@ def silent
 
   def do_test
     # simple call
-    assert_equal 9, @s.call('test.add', 4, 5)
+    assert_equal(9, @s.call('test.add', 4, 5))
 
     # fault exception
     assert_raise(XMLRPC::FaultException) { @s.call('test.div', 1, 0) }
 
     # fault exception via call2
     ok, param = @s.call2('test.div', 1, 0)
-    assert_equal false, ok
-    assert_instance_of XMLRPC::FaultException, param
-    assert_equal 1, param.faultCode
-    assert_equal 'division by zero', param.faultString
+    assert_equal(false, ok)
+    assert_instance_of(XMLRPC::FaultException, param)
+    assert_equal(1, param.faultCode)
+    assert_equal('division by zero', param.faultString)
 
     # call2 without fault exception
     ok, param = @s.call2('test.div', 10, 5)
-    assert_equal true, ok
-    assert_equal param, 2
+    assert_equal(true, ok)
+    assert_equal(param, 2)
 
     # introspection
-    assert_equal ["test.add", "test.div", "system.listMethods", "system.methodSignature", "system.methodHelp"], @s.call("system.listMethods")
+    assert_equal(["test.add", "test.div", "system.listMethods", "system.methodSignature", "system.methodHelp"],
+                 @s.call("system.listMethods"))
 
     # default handler (missing handler)
     ok, param = @s.call2('test.nonexisting')
-    assert_equal false, ok
+    assert_equal(false, ok)
     assert_equal(-99, param.faultCode)
 
     # default handler (wrong number of arguments)
     ok, param = @s.call2('test.add', 1, 2, 3)
-    assert_equal false, ok
+    assert_equal(false, ok)
     assert_equal(-99, param.faultCode)
 
     # multibyte characters
-    assert_equal "あいうえおかきくけこ", @s.call('test.add', "あいうえお", "かきくけこ")
+    assert_equal("あいうえおかきくけこ", @s.call('test.add', "あいうえお", "かきくけこ"))
   end
 
   def cgi_bin_script
     <<~RUBY
-      #!/usr/bin/env ruby
+      #!#{Gem.ruby}
       # frozen_string_literal: true
 
       $LOAD_PATH << #{File.expand_path("../lib", __dir__).inspect}
@@ -113,11 +115,11 @@ def cgi_bin_script
 
       s = XMLRPC::CGIServer.new
 
-      s.add_handler("test.add") do |a,b|
+      s.add_handler("test.add") do |a, b|
         a + b
       end
 
-      s.add_handler("test.div") do |a,b|
+      s.add_handler("test.div") do |a, b|
         if b == 0
           raise XMLRPC::FaultException.new(1, "division by zero")
         else
@@ -126,7 +128,7 @@ def cgi_bin_script
       end
 
       s.set_default_handler do |name, *args|
-        raise XMLRPC::FaultException.new(-99, "Method #{name} missing" +
+        raise XMLRPC::FaultException.new(-99, "Method \#{name} missing" +
               " or wrong number of parameters!")
       end