n := &Name{Go: s, C: s}
			names = append(names, n)
			optional[n] = true
		}

		// Otherwise, we'll need to find out from gcc.
		names = append(names, n)
	}

	// Bypass gcc if there's nothing left to find out.
	if len(names) == 0 {
		return needType
	}

	// Coerce gcc into telling us whether each name is a type, a value, or undeclared.
	// For names, find out whether they are integer constants.

	if !ok {
		return nil, fmt.Errorf("missing config map key %q", istioctlutil.ConfigMapKey)
	}

	cfg, err := mesh.ApplyMeshConfigDefaults(configYaml)
	if err != nil {
		return nil, fmt.Errorf("error parsing mesh config: %v", err)
	}

	return cfg, nil

		if _, gerr := globalIAMSys.GetGroupDescription(updReq.Group); gerr != nil {
			// If group does not exist, then check if the group has beginning and end space characters
			// we will reject such group names.
			if errors.Is(gerr, errNoSuchGroup) && hasSpaceBE(updReq.Group) {
				writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminResourceInvalidArgument), r.URL)
				return
			}
		}

	entryNames := []string{`/`, `//`, `\`, `/test.txt`}
	var names []string
	for _, f := range r.File {
		names = append(names, f.Name)
		if _, err := f.Open(); err != nil {
			t.Errorf("Error opening %q: %v", f.Name, err)
		}
		if _, err := r.Open(f.Name); err == nil {
			t.Errorf("Opening %q with fs.FS API succeeded", f.Name)
		}
	}
	if !reflect.DeepEqual(names, entryNames) {

				bucketsToBeUpdated.Add(bucket.Name)
				continue
			}

			// No IPs seem to intersect, this means that bucket exists but has
			// different IP addresses perhaps from a different deployment.
			// bucket names are globally unique in federation at a given
			// path prefix, name collision is not allowed. We simply log
			// an error and continue.
			bucketsInConflict.Add(bucket.Name)
		}
	}

}

// Tests validate volume name.
func TestIsValidVolname(t *testing.T) {
	testCases := []struct {
		volName    string
		shouldPass bool
	}{
		// Cases which should pass the test.
		// passing in valid bucket names.
		{"lol", true},
		{"1-this-is-valid", true},
		{"1-this-too-is-valid-1", true},
		{"this.works.too.1", true},
		{"1234567", true},
		{"123", true},
		{"s3-eu-west-1.amazonaws.com", true},