add an integration test to the self test suite.

I was not sure how deep we want to go to assure the right value is set.
For now, it asserts that a net.Addr is present in the context.

Due to the dynamic nature of the requests, it is a bit harder to know
exactly how the remote address will look like. IPv4 vs IPv6, random high
port. I think it is fine to only assert that the value is present.

integrationtests/self/http_test.go

@@ -481,4 +481,16 @@ var _ = Describe("HTTP tests", func() {
  Expect(time.Now().After(expectedEnd)).To(BeTrue())
  Expect(string(body)).To(ContainSubstring("aa"))
  })
+
+ It("sets remote address", func() {
+ mux.HandleFunc("/remote-addr", func(w http.ResponseWriter, r *http.Request) {
+ defer GinkgoRecover()
+ _, ok := r.Context().Value(http3.RemoteAddrContextKey).(net.Addr)
+ Expect(ok).To(BeTrue())
+ })
+
+ resp, err := client.Get(fmt.Sprintf("https://localhost:%d/remote-addr", port))
+ Expect(err).ToNot(HaveOccurred())
+ Expect(resp.StatusCode).To(Equal(200))
+ })
 })