// Check that default policies can be overwritten.
	err = s.adm.AddCannedPolicy(ctx, "readwrite", policyBytes)
	if err != nil {
		c.Fatalf("policy add error: %v", err)
	}

	info, err := s.adm.InfoCannedPolicy(ctx, "readwrite")
	if err != nil {
		c.Fatalf("policy info err: %v", err)
	}

	// Check that policy with comma is rejected.
	err = s.adm.AddCannedPolicy(ctx, "invalid,policy", policyBytes)
	if err == nil {