| package ident |
| |
| import ( |
| "context" |
| "errors" |
| "net" |
| "testing" |
| ) |
| |
| // TestE2E performs an end-to-end test of the ident client and server, |
| // exercising as much functionality as possible. |
| func TestE2E(t *testing.T) { |
| lis, err := net.Listen("tcp", "127.0.0.1:0") |
| if err != nil { |
| t.Fatalf("Listen: %v", err) |
| } |
| defer lis.Close() |
| |
| isrv := NewServer() |
| isrv.HandleFunc(func(ctx context.Context, w ResponseWriter, r *Request) { |
| switch r.ServerPort { |
| case 1: |
| w.SendError(NoUser) |
| default: |
| w.SendIdent(&IdentResponse{ |
| UserID: "q3k", |
| }) |
| } |
| }) |
| go isrv.Serve(lis) |
| target := lis.Addr().String() |
| |
| ctx := context.Background() |
| |
| // Full end-to-end test, from high-level client Query call, to server |
| // handler. |
| |
| // This call should succeed. |
| resp, err := Query(ctx, target, 123, 234) |
| if err != nil { |
| t.Fatalf("Query: %v", err) |
| } |
| if want, got := "q3k", resp.UserID; want != got { |
| t.Errorf("Resp.UserID: wanted %q, got %q", want, got) |
| } |
| |
| // This call should error out and return an error that can be converted |
| // back into ErrorResponse. |
| resp, err = Query(ctx, target, 123, 1) |
| if err == nil { |
| t.Fatalf("Query returned nil error") |
| } |
| identErr := &IdentError{} |
| if errors.As(err, &identErr) { |
| if want, got := NoUser, identErr.Inner; want != got { |
| t.Errorf("Query error is %q, wanted %q", want, got) |
| } |
| } else { |
| t.Errorf("Query error did not match AnyError") |
| } |
| // Test matches against specific errors. |
| if errors.Is(err, &IdentError{UnknownError}) { |
| t.Errorf("Query error should not have matched UnknownError") |
| } |
| if !errors.Is(err, &IdentError{NoUser}) { |
| t.Errorf("Query error should have matcher NoUser") |
| } |
| } |