hashicorp/terraform · critical

unknown view type %v

Error message

unknown view type %v

What it means

NewTest (internal/command/views/test.go:84) switches over arguments.ViewType and returns TestJSON for ViewJSON or TestHuman for ViewHuman; any other value panics 'unknown view type %v'. 'terraform test' only supports human and JSON output.

Source

Thrown at internal/command/views/test.go:95

	// status of their ongoing remote test run.
	TFCStatusUpdate(status tfe.TestRunStatus, elapsed time.Duration)

	// TFCRetryHook prints an update if a request failed and is being retried.
	TFCRetryHook(attemptNum int, resp *http.Response)
}

func NewTest(vt arguments.ViewType, view *View) Test {
	switch vt {
	case arguments.ViewJSON:
		return &TestJSON{
			view: NewJSONView(view),
		}
	case arguments.ViewHuman:
		return &TestHuman{
			view: view,
		}
	default:
		panic(fmt.Sprintf("unknown view type %v", vt))
	}
}

type TestHuman struct {
	CloudHooks

	view *View
}

var _ Test = (*TestHuman)(nil)

func (t *TestHuman) Abstract(_ *moduletest.Suite) {
	// Do nothing, we don't print an abstract for the human view.
}

func (t *TestHuman) Conclusion(suite *moduletest.Suite) {
	t.view.streams.Println()

View on GitHub (pinned to d32a084675)

Solutions

1. Ensure every constructor of arguments.Test sets ViewType explicitly (default to ViewHuman when -json is absent).
2. If introducing a new ViewType, add the corresponding Test implementation and its case here together.
3. Add a test covering NewTest for each defined ViewType constant.
4. As an end user, report the internal bug with the 'terraform test' invocation that crashed.

func validTestViewType(vt arguments.ViewType) bool {
    return vt == arguments.ViewHuman || vt == arguments.ViewJSON
}
if !validTestViewType(args.ViewType) {
    return nil, fmt.Errorf("terraform test requires ViewHuman or ViewJSON, got %v", args.ViewType)
}

When it happens

Trigger: NewTest is called with ViewRaw ('R'), ViewNone (0), or any rune other than ViewHuman/ViewJSON. The test argument parser (internal/command/arguments/test.go) only ever sets ViewJSON or ViewHuman, so reaching the panic implies an uninitialized/leaked ViewType or a new view mode added without a Test implementation.

Common situations: A code path constructing arguments.Test{} without setting ViewType (leaving ViewNone), or a future ViewType constant introduced without a Test view variant.

Related errors

• unknown view type %v
• unrecognized test progress: %s
• unrecognized status: %s
• (*StateMigrateHuman)LogStateMigrationErrored: called incorre
• missing message for InstallingProviderMessage init message c

AI-assisted analysis of hashicorp/terraform@d32a084675 (2026-08-11). Data as JSON: /api/errors/142aaf5af166423d. Report an issue: GitHub.