(t *testing.T)
| 349 | } |
| 350 | |
| 351 | func TestNilMessage(t *testing.T) { |
| 352 | name := "nil interface" |
| 353 | if got, err := proto.GetExtension(nil, pb2.E_Ext_More); err == nil { |
| 354 | t.Errorf("%s: got %T %v, expected to fail", name, got, got) |
| 355 | } else if !strings.Contains(err.Error(), "extendable") { |
| 356 | t.Errorf("%s: got error %v, expected not-extendable error", name, err) |
| 357 | } |
| 358 | |
| 359 | // Regression tests: all functions of the Extension API |
| 360 | // used to panic when passed (*M)(nil), where M is a concrete message |
| 361 | // type. Now they handle this gracefully as a no-op or reported error. |
| 362 | var nilMsg *pb2.MyMessage |
| 363 | desc := pb2.E_Ext_More |
| 364 | |
| 365 | isNotExtendable := func(err error) bool { |
| 366 | return strings.Contains(fmt.Sprint(err), "not an extendable") |
| 367 | } |
| 368 | |
| 369 | if proto.HasExtension(nilMsg, desc) { |
| 370 | t.Error("HasExtension(nil) = true") |
| 371 | } |
| 372 | |
| 373 | if _, err := proto.GetExtensions(nilMsg, []*proto.ExtensionDesc{desc}); !isNotExtendable(err) { |
| 374 | t.Errorf("GetExtensions(nil) = %q (wrong error)", err) |
| 375 | } |
| 376 | |
| 377 | if _, err := proto.ExtensionDescs(nilMsg); !isNotExtendable(err) { |
| 378 | t.Errorf("ExtensionDescs(nil) = %q (wrong error)", err) |
| 379 | } |
| 380 | |
| 381 | if err := proto.SetExtension(nilMsg, desc, nil); !isNotExtendable(err) { |
| 382 | t.Errorf("SetExtension(nil) = %q (wrong error)", err) |
| 383 | } |
| 384 | |
| 385 | proto.ClearExtension(nilMsg, desc) // no-op |
| 386 | proto.ClearAllExtensions(nilMsg) // no-op |
| 387 | } |
| 388 | |
| 389 | func TestExtensionsRoundTrip(t *testing.T) { |
| 390 | msg := &pb2.MyMessage{} |
nothing calls this directly
no test coverage detected