1 files changed, 23 insertions, 0 deletions
diff --git a/spec/ruby/library/socket/socket/getservbyport_spec.rb b/spec/ruby/library/socket/socket/getservbyport_spec.rb
new file mode 100644
index 0000000000..9be2ac527e
--- /dev/null
+++ b/spec/ruby/library/socket/socket/getservbyport_spec.rb
@@ -0,0 +1,23 @@
+require_relative '../spec_helper'
+
+describe 'Socket.getservbyport' do
+  platform_is_not :windows do
+    it 'returns the service name as a String' do
+      Socket.getservbyport(514).should == 'shell'
+    end
+  end
+
+  platform_is :windows do
+    it 'returns the service name as a String' do
+      Socket.getservbyport(514).should == 'cmd'
+    end
+  end
+
+  it 'returns the service name when using a custom protocol name' do
+    Socket.getservbyport(514, 'udp').should == 'syslog'
+  end
+
+  it 'raises SocketError for an unknown port number' do
+    lambda { Socket.getservbyport(0) }.should raise_error(SocketError)
+  end
+end