1 files changed, 46 insertions, 0 deletions
diff --git a/spec/ruby/library/socket/addrinfo/ipv4_multicast_spec.rb b/spec/ruby/library/socket/addrinfo/ipv4_multicast_spec.rb
new file mode 100644
index 0000000000..01f6a6ebf7
--- /dev/null
+++ b/spec/ruby/library/socket/addrinfo/ipv4_multicast_spec.rb
@@ -0,0 +1,46 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'socket'
+
+describe "Addrinfo#ipv4_multicast?" do
+  describe "for an ipv4 socket" do
+    before :each do
+      @multicast = Addrinfo.tcp("224.0.0.1", 80)
+      @other     = Addrinfo.tcp("0.0.0.0", 80)
+    end
+
+    it "returns true for the loopback address" do
+      @multicast.ipv4_multicast?.should be_true
+    end
+
+    it "returns false for another address" do
+      @other.ipv4_multicast?.should be_false
+    end
+  end
+
+  describe "for an ipv6 socket" do
+    before :each do
+      @multicast = Addrinfo.tcp("ff02::1", 80)
+      @other     = Addrinfo.tcp("::", 80)
+    end
+
+    it "returns false for the loopback address" do
+      @multicast.ipv4_multicast?.should be_false
+    end
+
+    it "returns false for another address" do
+      @other.ipv4_multicast?.should be_false
+    end
+  end
+
+  platform_is_not :windows do
+    describe "for a unix socket" do
+      before :each do
+        @addrinfo = Addrinfo.unix("/tmp/sock")
+      end
+
+      it "returns false" do
+        @addrinfo.ipv4_multicast?.should be_false
+      end
+    end
+  end
+end