Method ExpectNoMatchBefore

pty/ptytest/ptytest.go:211–241

ExpectNoMatchBefore validates that `match` does not occur before `before`.

(ctx context.Context, match, before string)

// ExpectNoMatchBefore validates that `match` does not occur before `before`.
func (e *outExpecter) ExpectNoMatchBefore(ctx context.Context, match, before string) string {
	e.t.Helper()

	var buffer bytes.Buffer
	err := e.doMatchWithDeadline(ctx, "ExpectNoMatchBefore", func(rd *bufio.Reader) error {
		for {
			r, _, err := rd.ReadRune()
			if err != nil {
				return err
			}
			_, err = buffer.WriteRune(r)
			if err != nil {
				return err
			}

			if strings.Contains(buffer.String(), match) {
				return xerrors.Errorf("found %q before %q", match, before)
			}

			if strings.Contains(buffer.String(), before) {
				return nil
			}
		}
	})
	if err != nil {
		e.fatalf("read error", "%v (wanted no %q before %q; got %q)", err, match, before, buffer.String())
		return ""
	}
	e.logf("matched %q = %q", before, stripansi.Strip(buffer.String()))
	return buffer.String()
}

func (e *outExpecter) Peek(ctx context.Context, n int) []byte {
	e.t.Helper()