1 files changed, 188 insertions, 0 deletions
diff --git a/spec/ruby/library/socket/basicsocket/getsockopt_spec.rb b/spec/ruby/library/socket/basicsocket/getsockopt_spec.rb
new file mode 100644
index 0000000000..744297ad02
--- /dev/null
+++ b/spec/ruby/library/socket/basicsocket/getsockopt_spec.rb
@@ -0,0 +1,188 @@
+require_relative '../spec_helper'
+require_relative '../fixtures/classes'
+
+describe "BasicSocket#getsockopt" do
+  before :each do
+    @sock = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0)
+  end
+
+  after :each do
+    @sock.closed?.should == false
+    @sock.close
+  end
+
+  platform_is_not :aix do
+    # A known bug in AIX.  getsockopt(2) does not properly set
+    # the fifth argument for SO_TYPE, SO_OOBINLINE, SO_BROADCAST, etc.
+
+    it "gets a socket option Socket::SO_TYPE" do
+      n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_TYPE).to_s
+      n.should == [Socket::SOCK_STREAM].pack("i")
+    end
+
+    it "gets a socket option Socket::SO_OOBINLINE" do
+      n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_OOBINLINE).to_s
+      n.should == [0].pack("i")
+    end
+  end
+
+  it "gets a socket option Socket::SO_LINGER" do
+    n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER).to_s
+    if (n.size == 8) # linger struct on some platforms, not just a value
+      n.should == [0, 0].pack("ii")
+    else
+      n.should == [0].pack("i")
+    end
+  end
+
+  it "gets a socket option Socket::SO_SNDBUF" do
+    n = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_SNDBUF).to_s
+    n.unpack('i')[0].should > 0
+  end
+
+  it "raises a SystemCallError with an invalid socket option" do
+    -> { @sock.getsockopt Socket::SOL_SOCKET, -1 }.should.raise(Errno::ENOPROTOOPT)
+  end
+
+  it 'returns a Socket::Option using a constant' do
+    opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_TYPE)
+
+    opt.should.instance_of?(Socket::Option)
+  end
+
+  it 'returns a Socket::Option for a boolean option' do
+    opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR)
+
+    opt.bool.should == false
+  end
+
+  it 'returns a Socket::Option for a numeric option' do
+    opt = @sock.getsockopt(Socket::IPPROTO_IP, Socket::IP_TTL)
+
+    opt.int.should.is_a?(Integer)
+  end
+
+  it 'returns a Socket::Option for a struct option' do
+    opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER)
+
+    opt.linger.should == [false, 0]
+  end
+
+  it 'raises Errno::ENOPROTOOPT when requesting an invalid option' do
+    -> { @sock.getsockopt(Socket::SOL_SOCKET, -1) }.should.raise(Errno::ENOPROTOOPT)
+  end
+
+  describe 'using Symbols as arguments' do
+    it 'returns a Socket::Option for arguments :SOCKET and :TYPE' do
+      opt = @sock.getsockopt(:SOCKET, :TYPE)
+
+      opt.level.should   == Socket::SOL_SOCKET
+      opt.optname.should == Socket::SO_TYPE
+    end
+
+    it 'returns a Socket::Option for arguments :IP and :TTL' do
+      opt = @sock.getsockopt(:IP, :TTL)
+
+      opt.level.should   == Socket::IPPROTO_IP
+      opt.optname.should == Socket::IP_TTL
+    end
+
+    it 'returns a Socket::Option for arguments :SOCKET and :REUSEADDR' do
+      opt = @sock.getsockopt(:SOCKET, :REUSEADDR)
+
+      opt.level.should   == Socket::SOL_SOCKET
+      opt.optname.should == Socket::SO_REUSEADDR
+    end
+
+    it 'returns a Socket::Option for arguments :SOCKET and :LINGER' do
+      opt = @sock.getsockopt(:SOCKET, :LINGER)
+
+      opt.level.should   == Socket::SOL_SOCKET
+      opt.optname.should == Socket::SO_LINGER
+    end
+
+    with_feature :udp_cork do
+      it 'returns a Socket::Option for arguments :UDP and :CORK' do
+        sock = Socket.new(:INET, :DGRAM)
+        begin
+          opt  = sock.getsockopt(:UDP, :CORK)
+
+          opt.level.should   == Socket::IPPROTO_UDP
+          opt.optname.should == Socket::UDP_CORK
+        ensure
+          sock.close
+        end
+      end
+    end
+  end
+
+  describe 'using Strings as arguments' do
+    it 'returns a Socket::Option for arguments "SOCKET" and "TYPE"' do
+      opt = @sock.getsockopt("SOCKET", "TYPE")
+
+      opt.level.should   == Socket::SOL_SOCKET
+      opt.optname.should == Socket::SO_TYPE
+    end
+
+    it 'returns a Socket::Option for arguments "IP" and "TTL"' do
+      opt = @sock.getsockopt("IP", "TTL")
+
+      opt.level.should   == Socket::IPPROTO_IP
+      opt.optname.should == Socket::IP_TTL
+    end
+
+    it 'returns a Socket::Option for arguments "SOCKET" and "REUSEADDR"' do
+      opt = @sock.getsockopt("SOCKET", "REUSEADDR")
+
+      opt.level.should   == Socket::SOL_SOCKET
+      opt.optname.should == Socket::SO_REUSEADDR
+    end
+
+    it 'returns a Socket::Option for arguments "SOCKET" and "LINGER"' do
+      opt = @sock.getsockopt("SOCKET", "LINGER")
+
+      opt.level.should   == Socket::SOL_SOCKET
+      opt.optname.should == Socket::SO_LINGER
+    end
+
+    with_feature :udp_cork do
+      it 'returns a Socket::Option for arguments "UDP" and "CORK"' do
+        sock = Socket.new("INET", "DGRAM")
+        begin
+          opt  = sock.getsockopt("UDP", "CORK")
+
+          opt.level.should   == Socket::IPPROTO_UDP
+          opt.optname.should == Socket::UDP_CORK
+        ensure
+          sock.close
+        end
+      end
+    end
+  end
+
+  describe 'using a String based option' do
+    it 'allows unpacking of a boolean option' do
+      opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR).to_s
+
+      opt.unpack('i').should == [0]
+    end
+
+    it 'allows unpacking of a numeric option' do
+      opt   = @sock.getsockopt(Socket::IPPROTO_IP, Socket::IP_TTL).to_s
+      array = opt.unpack('i')
+
+      array[0].should.is_a?(Integer)
+      array[0].should > 0
+    end
+
+    it 'allows unpacking of a struct option' do
+      opt = @sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER).to_s
+
+      if opt.bytesize == 8
+        opt.unpack('ii').should == [0, 0]
+      else
+        opt.unpack('i').should == [0]
+      end
+    end
+  end
+end