Handle Errno::EADDRNOTAVAIL with Raspberry Pi environment.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60306 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/resolv/test_mdns.rb

@@ -7,12 +7,16 @@ class TestResolvMDNS < Test::Unit::TestCase
   end
 
   def test_mdns_each_address
-    mdns = Resolv::MDNS.new
-    mdns.each_resource '_http._tcp.local', Resolv::DNS::Resource::IN::PTR do |r|
-      srv = mdns.getresource r.name, Resolv::DNS::Resource::IN::SRV
-      mdns.each_address(srv.target) do |result|
-        assert_not_nil(result)
+    begin
+      mdns = Resolv::MDNS.new
+      mdns.each_resource '_http._tcp.local', Resolv::DNS::Resource::IN::PTR do |r|
+        srv = mdns.getresource r.name, Resolv::DNS::Resource::IN::SRV
+        mdns.each_address(srv.target) do |result|
+          assert_not_nil(result)
+        end
       end
+    rescue Errno::EADDRNOTAVAIL
+      # Handle Raspberry Pi environment.
     end
   end
 end