st.MakePod().Name("p2").UID("p2").Namespace(v1.NamespaceDefault).Node("node2").Req(mediumRes).Obj(),
			},
			// even though node1 will fail with error but node2 will still be returned as a valid nominated node.
			nodes: []*v1.Node{
				st.MakeNode().Name("node1").Capacity(largeRes).Label("error", "true").Obj(),
				st.MakeNode().Name("node2").Capacity(largeRes).Obj(),
			},

				nodeInfos = append(nodeInfos, ni)
			}
			nodes, _ := nodesWherePreemptionMightHelp(nodeInfos, tt.nodesStatuses)
			if len(tt.expected) != len(nodes) {
				t.Errorf("number of nodes is not the same as expected. exptectd: %d, got: %d. Nodes: %v", len(tt.expected), len(nodes), nodes)
			}
			for _, node := range nodes {
				name := node.Node().Name
				if _, found := tt.expected[name]; !found {

            [
                taskMatcher("node1", ":producer:producer", []),
                transformStepMatcher("node2", expectedTransformId1, ["node1"]),
                transformStepMatcher("node3", expectedTransformId2, ["node1"]),
                taskMatcher("node4", ":consumer1:resolve", ["node2"]),
                taskMatcher("node5", ":consumer2:resolve", ["node3"]),
            ]
        )

	s := newNodeUntainterTestServer(t)
	s.addTaintedNodes(t, "node1", "node2", "node3")
	s.addPod(t, "node3", true, map[string]string{"k8s-app": "other-app"}, "")
	s.addCniPod(t, "node2", false)
	s.addCniPod(t, "node1", true)
	s.assertNodeUntainted(t, "node1")
	s.assertNodeTainted(t, "node2")
	s.assertNodeTainted(t, "node3")
}

func TestNodeUntainterOnlyUntaintsWhenIstiocniInourNs(t *testing.T) {

		st.MakePod().Name("pod4").UID("pod4").SchedulerName("match-node3").Obj(),
	}
	wantBindings := map[string]string{
		"pod1": "node3",
		"pod2": "node2",
		"pod3": "node2",
		"pod4": "node3",
	}
	wantControllers := map[string]string{
		"pod1": "match-node3",
		"pod2": "match-node2",
		"pod3": "match-node2",
		"pod4": "match-node3",
	}

	// Set up scheduler for the 3 nodes.

				Obj(),
			nodes: []*v1.Node{
				st.MakeNode().Name("node1").Capacity(map[v1.ResourceName]string{"cpu": "4000", "memory": "10000"}).Obj(),
				st.MakeNode().Name("node2").Capacity(map[v1.ResourceName]string{"cpu": "6000", "memory": "10000"}).Obj(),
			},
			existingPods: []*v1.Pod{
				st.MakePod().Node("node1").Req(map[v1.ResourceName]string{"cpu": "2000", "memory": "4000"}).Obj(),

											Values: []string{
												"node1",
												"node2",
											},
										},
									},
								},
							},
						},
					},
				},
			},
			expectedNodeNames: []string{
				"node1",
				"node2",
			},
		},
		{
			name: "PV node affinity required multiple match expressions with multiple nodes",
			pv: &v1.PersistentVolume{

	// nodes objects
	node1         = makeNode("node1").withLabel(nodeLabelKey, "node1").Node
	node2         = makeNode("node2").withLabel(nodeLabelKey, "node2").Node
	node1NoLabels = makeNode("node1").Node
	node1Zone1    = makeNode("node1").withLabel("topology.gke.io/zone", "us-east-1").Node
	node1Zone2    = makeNode("node1").withLabel("topology.gke.io/zone", "us-east-2").Node

	// csiNode objects

					"node1": NewStatus(Unschedulable, "Node(s) failed Filter plugin FalseFilter-1"),
					"node2": NewStatus(Unschedulable, "Node(s) failed Filter plugin FalseFilter-1"),
					"node3": NewStatus(Unschedulable, "Node(s) failed Filter plugin FalseFilter-1"),
				},
				PostFilterMsg: "Error running PostFilter plugin FailedPostFilter",
			},

	}

	if f.componentVersion == "multiVersion" {
		return map[string][]string{
			"node1": {"node1"},
			"node2": {"node2"},
		}, nil
	}

	return map[string][]string{
		f.componentVersion: {"node1"},
	}, nil
}

const fakeCurrentEtcdVersion = "3.1.12"

func getEtcdVersion(v *versionutil.Version) string {
	etcdVer, _, _ := constants.EtcdSupportedVersion(constants.SupportedEtcdVersion, v.String())