},
		}, true),
		expectedError: `webhooks[0].matchConditions: Too many: 65: must have at most 64 items`,
	}}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			errs := ValidateValidatingWebhookConfiguration(test.config)
			err := errs.ToAggregate()
			if err != nil {
				if e, a := test.expectedError, err.Error(); !strings.Contains(a, e) || e == "" {
					t.Errorf("expected to contain:\n  %s\ngot:\n  %s", e, a)