cmd/geth: add test for custom headers

cmd/geth/attach_test.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+ "fmt"
+ "net"
+ "net/http"
+ "sync/atomic"
+ "testing"
+)
+
+type testHandler struct {
+ body func(http.ResponseWriter, *http.Request)
+}
+
+func (t *testHandler) ServeHTTP(out http.ResponseWriter, in *http.Request) {
+ t.body(out, in)
+}
+
+// TestAttachWithHeaders tests that 'geth attach' with custom headers works, i.e
+// that custom headers are forwarded to the target.
+func TestAttachWithHeaders(t *testing.T) {
+ t.Parallel()
+ ln, err := net.Listen("tcp", "localhost:0")
+ if err != nil {
+ t.Fatal(err)
+ }
+ port := ln.Addr().(*net.TCPAddr).Port
+ testReceiveHeaders(t, ln, "attach", "-H", "first: one", "-H", "second: two", fmt.Sprintf("http://localhost:%d", port))
+ // This way to do it fails due to flag ordering:
+ //
+ // testReceiveHeaders(t, ln, "-H", "first: one", "-H", "second: two", "attach", fmt.Sprintf("http://localhost:%d", port))
+ // This is fixed in a follow-up PR.
+}
+
+// TestAttachWithHeaders tests that 'geth db --remotedb' with custom headers works, i.e
+// that custom headers are forwarded to the target.
+func TestRemoteDbWithHeaders(t *testing.T) {
+ t.Parallel()
+ ln, err := net.Listen("tcp", "localhost:0")
+ if err != nil {
+ t.Fatal(err)
+ }
+ port := ln.Addr().(*net.TCPAddr).Port
+ testReceiveHeaders(t, ln, "db", "metadata", "--remotedb", fmt.Sprintf("http://localhost:%d", port), "-H", "first: one", "-H", "second: two")
+}
+
+func testReceiveHeaders(t *testing.T, ln net.Listener, gethArgs ...string) {
+ var ok uint32
+ server := &http.Server{
+ Addr: "localhost:0",
+ Handler: &testHandler{func(w http.ResponseWriter, r *http.Request) {
+ // We expect two headers
+ if have, want := r.Header.Get("first"), "one"; have != want {
+ t.Fatalf("missing header, have %v want %v", have, want)
+ }
+ if have, want := r.Header.Get("second"), "two"; have != want {
+ t.Fatalf("missing header, have %v want %v", have, want)
+ }
+ atomic.StoreUint32(&ok, 1)
+ }}}
+ go server.Serve(ln)
+ defer server.Close()
+ runGeth(t, gethArgs...).WaitExit()
+ if atomic.LoadUint32(&ok) != 1 {
+ t.Fatal("Test fail, expected invocation to succeed")
+ }
+}