rename files dealing with low level conns to sys_conn

sys_conn_windows_test.go

@@ -0,0 +1,33 @@
+//go:build windows
+// +build windows
+
+package quic
+
+import (
+	"net"
+
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Windows Conn Test", func() {
+	It("works on IPv4", func() {
+		addr, err := net.ResolveUDPAddr("udp4", "localhost:0")
+		Expect(err).ToNot(HaveOccurred())
+		udpConn, err := net.ListenUDP("udp4", addr)
+		Expect(err).ToNot(HaveOccurred())
+		conn, err := newConn(udpConn)
+		Expect(err).ToNot(HaveOccurred())
+		Expect(conn.Close()).To(Succeed())
+	})
+
+	It("works on IPv6", func() {
+		addr, err := net.ResolveUDPAddr("udp6", "[::1]:0")
+		Expect(err).ToNot(HaveOccurred())
+		udpConn, err := net.ListenUDP("udp6", addr)
+		Expect(err).ToNot(HaveOccurred())
+		conn, err := newConn(udpConn)
+		Expect(err).ToNot(HaveOccurred())
+		Expect(conn.Close()).To(Succeed())
+	})
+})