[PATCH] test/rinda/test_rinda: skip multicast tests for unsupported systems

[Eric Wong <e@80x24.org>]

This allows "test-all" to pass on systems without multicast
support.  I leave CONFIG_IP_MULTICAST unset in my Linux kernel
.config, nowadays.
---
 test/rinda/test_rinda.rb | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/test/rinda/test_rinda.rb b/test/rinda/test_rinda.rb
index aae1a1d7a4..feff342349 100644
--- a/test/rinda/test_rinda.rb
+++ b/test/rinda/test_rinda.rb
@@ -643,7 +643,11 @@ def test_make_socket_unicast
   end
 
   def test_make_socket_ipv4_multicast
-    v4mc = @rs.make_socket('239.0.0.1')
+    begin
+      v4mc = @rs.make_socket('239.0.0.1')
+    rescue Errno::ENOBUFS => e
+      skip "Missing multicast support in OS: #{e.message}"
+    end
 
     begin
       if Socket.const_defined?(:SO_REUSEPORT) then
@@ -670,6 +674,8 @@ def test_make_socket_ipv6_multicast
       v6mc = @rs.make_socket('ff02::1')
     rescue Errno::EADDRNOTAVAIL
       return # IPv6 address for multicast not available
+    rescue Errno::ENOBUFS => e
+      skip "Missing multicast support in OS: #{e.message}"
     end
 
     if Socket.const_defined?(:SO_REUSEPORT) then
@@ -684,7 +690,12 @@ def test_make_socket_ipv6_multicast
 
   def test_ring_server_ipv4_multicast
     @rs.shutdown
-    @rs = Rinda::RingServer.new(@ts, [['239.0.0.1', '0.0.0.0']], @port)
+    begin
+      @rs = Rinda::RingServer.new(@ts, [['239.0.0.1', '0.0.0.0']], @port)
+    rescue Errno::ENOBUFS => e
+      skip "Missing multicast support in OS: #{e.message}"
+    end
+
     v4mc = @rs.instance_variable_get('@sockets').first
 
     begin
-- 
EW