expectAllowHTTP2: true,
		},
	}
	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {

			cc := ClientConfig{
				URL: tc.url,
			}
			cfg, err := cm.hookClientConfig(cc)
			if err != nil {
				t.Fatal(err)
			}
			if tc.expectAllowHTTP2 && !allowHTTP2(cfg.NextProtos) {
				t.Errorf("expected allow http/2, got: %v", cfg.NextProtos)
			}
		})
	}
}

		return client.(*rest.RESTClient), nil
	}

	cfg, err := cm.hookClientConfig(cc)
	if err != nil {
		return nil, err
	}

	client, err := rest.UnversionedRESTClientFor(cfg)
	if err == nil {
		cm.cache.Add(string(cacheKey), client)
	}
	return client, err
}

func (cm *ClientManager) hookClientConfig(cc ClientConfig) (*rest.Config, error) {