name:           "different effect",
			taintToFind:    &v1.Taint{Key: "foo_1", Value: "bar_1", Effect: v1.TaintEffectNoSchedule},
			expectedResult: false,
		},
	}

	for _, c := range cases {
		result := TaintExists(testingTaints, c.taintToFind)

		if result != c.expectedResult {
			t.Errorf("[%s] unexpected results: %v", c.name, result)
			continue
		}
	}
}

func TestTaintKeyExists(t *testing.T) {

		Effect: v1.TaintEffectNoSchedule,
	}

	// Taint node with TaintNodeUnschedulable when initializing
	// node to avoid race condition; refer to #63897 for more detail.
	if node.Spec.Unschedulable &&
		!taintutil.TaintExists(nodeTaints, &unschedulableTaint) {
		nodeTaints = append(nodeTaints, unschedulableTaint)
	}

	if kl.externalCloudProvider {
		taint := v1.Taint{
			Key:    cloudproviderapi.TaintExternalCloudProvider,

	if len(taints) == 0 {
		return nil
	}
	// Short circuit for limiting amount of API calls.
	if node != nil {
		match := false
		for _, taint := range taints {
			if taintutils.TaintExists(node.Spec.Taints, taint) {
				match = true
				break
			}
		}
		if !match {
			return nil
		}
	}

	firstTry := true