assert.Equal(t, testCase.expectedHostsFileContent, string(actualContent), "hosts file content not expected")
		})
	}
}

// writeHostsFile will write a hosts file into a temporary dir, and return that dir.
// Caller is responsible for deleting the dir and its contents.
func writeHostsFile(filename string, cfg string) (string, error) {
	tmpdir, err := os.MkdirTemp("", "kubelet=kubelet_pods_test.go=")
	if err != nil {
		return "", err