// empty mutator for ResetConfiguration.
	mutators.addEmpty([]any{(*kubeadmapi.ResetConfiguration)(nil)})

	return mutators
}

// defaultEmptyMigrateMutators returns a list of empty mutators for known types.
func defaultEmptyMigrateMutators() migrateMutators {
	mutators := &migrateMutators{}

	mutators.addEmpty([]any{(*kubeadmapi.InitConfiguration)(nil)})

			expectErr:         true,
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			b, err := MigrateOldConfig([]byte(test.oldCfg), test.allowExperimental, defaultEmptyMigrateMutators())
			if test.expectErr {
				if err == nil {
					t.Fatalf("unexpected success:\n%s", b)
				}
			} else {
				if err != nil {
					t.Fatalf("unexpected failure: %v", err)
				}