s.testServer.Obj.Shutdown(context.Background())

	// Restart.
	ctx, cancel := context.WithCancel(context.Background())

	s.testServer.cancel = cancel
	s.testServer = initTestServerWithBackend(ctx, c, s.testServer, s.testServer.Obj, s.testServer.rawDiskPaths)
	if s.secure {
		s.testServer.Server.StartTLS()
	} else {
		s.testServer.Server.Start()
	}

	s.client = s.testServer.Server.Client()

	// around expressions that use > (or >>). It is incremented if
	// we output a parenthesis or something else that means that >
	// or >> won't be treated as ending a template. It starts out
	// as 1, and is set to 0 when we start writing template
	// arguments. We add parentheses around expressions using > if
	// scopes is 0. The effect is that an expression with > gets
	// parentheses if used as a template argument that is not

			minRange := i - 5
			maxRange := i + 5
			if minRange < 0 {
				minRange = 0
			}
			if maxRange > len(lines) {
				maxRange = len(lines)
			}
			panic(fmt.Errorf("line %d doesn't start with expected number (%d) of tabs (%v-%v):\n%v", i, len(prefix), minRange, maxRange, string(bytes.Join(lines[minRange:maxRange], []byte{'\n'}))))
		}
		lines[i] = line[len(prefix):]
	}

"selectors","createPseudo","relative",">"," ","+","~","preFilter","excess","unquoted","nodeNameSelector","pattern","operator","check","result","what","_argument","simple","forward","ofType","_context","xml","uniqueCache","outerCache","nodeIndex","start","parent","useCache","lastChild","uniqueID","pseudo","args","setFilters","idx","matched","not","matcher","unmatched","has","lang","elemLang","hash","location","root","focus","activeElement","hasFocus","href","tabIndex","enabled","checked","selecte...

"selectors","createPseudo","relative",">"," ","+","~","preFilter","excess","unquoted","nodeNameSelector","pattern","operator","check","result","what","_argument","simple","forward","ofType","_context","xml","uniqueCache","outerCache","nodeIndex","start","parent","useCache","lastChild","uniqueID","pseudo","args","setFilters","idx","matched","not","matcher","unmatched","has","lang","elemLang","hash","location","root","focus","activeElement","hasFocus","href","tabIndex","enabled","checked","selecte...

				s = r
			case *ValueError:
				s = r.Error()
			default:
				panic(fmt.Sprintf("panicked with unexpected type %T", r))
			}
			if !strings.HasPrefix(s, "reflect") {
				panic(`panic string does not start with "reflect": ` + s)
			}
			if !strings.Contains(s, expect) {
				panic(`panic string does not contain "` + expect + `": ` + s)
			}
		}
	}()
	f()
}

func isNonNil(x any) {