// retain LastTransitionTime if status is not changed
		condition.LastTransitionTime = existing.LastTransitionTime
	}
	*existing = condition

	return ret
}

// CreateCondition sets a condition only if it has not already been set
func CreateCondition(conditions []metav1.Condition, condition metav1.Condition, unsetReason string) []metav1.Condition {
	ret := append([]metav1.Condition(nil), conditions...)
	idx := -1

					LastTransitionTime: transitionTime,
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := CreateCondition(tt.conditions, tt.condition, tt.unsetReason); !reflect.DeepEqual(got, tt.want) {
				t.Errorf("CreateCondition got %v, want %v", got, tt.want)
			}
		})
	}
}

func TestInvertStatus(t *testing.T) {
	tests := []struct {
		name   string

		cond := conditions[k]
		setter := kstatus.UpdateConditionIfChanged
		if cond.setOnce != "" {
			setter = func(conditions []metav1.Condition, condition metav1.Condition) []metav1.Condition {
				return kstatus.CreateCondition(conditions, condition, cond.setOnce)
			}
		}
		// A condition can be "negative polarity" (ex: ListenerInvalid) or "positive polarity" (ex: