Golang algorithm.FakeServiceLister函数代码示例

// The point of this test is to show that you:
// - get the same priority for a zero-request pod as for a pod with the defaults requests,
//   both when the zero-request pod is already on the machine and when the zero-request pod
//   is the one being scheduled.
// - don't get the same score no matter what we schedule.
func TestZeroRequest(t *testing.T) {
	// A pod with no resources. We expect spreading to count it as having the default resources.
	noResources := api.PodSpec{
		Containers: []api.Container{
			{},
		},
	}
	noResources1 := noResources
	noResources1.NodeName = "machine1"
	// A pod with the same resources as a 0-request pod gets by default as its resources (for spreading).
	small := api.PodSpec{
		Containers: []api.Container{
			{
				Resources: api.ResourceRequirements{
					Requests: api.ResourceList{
						"cpu": resource.MustParse(
							strconv.FormatInt(priorityutil.DefaultMilliCpuRequest, 10) + "m"),
						"memory": resource.MustParse(
							strconv.FormatInt(priorityutil.DefaultMemoryRequest, 10)),
					},
				},
			},
		},
	}
	small2 := small
	small2.NodeName = "machine2"
	// A larger pod.
	large := api.PodSpec{
		Containers: []api.Container{
			{
				Resources: api.ResourceRequirements{
					Requests: api.ResourceList{
						"cpu": resource.MustParse(
							strconv.FormatInt(priorityutil.DefaultMilliCpuRequest*3, 10) + "m"),
						"memory": resource.MustParse(
							strconv.FormatInt(priorityutil.DefaultMemoryRequest*3, 10)),
					},
				},
			},
		},
	}
	large1 := large
	large1.NodeName = "machine1"
	large2 := large
	large2.NodeName = "machine2"
	tests := []struct {
		pod   *api.Pod
		pods  []*api.Pod
		nodes []*api.Node
		test  string
	}{
		// The point of these next two tests is to show you get the same priority for a zero-request pod
		// as for a pod with the defaults requests, both when the zero-request pod is already on the machine
		// and when the zero-request pod is the one being scheduled.
		{
			pod:   &api.Pod{Spec: noResources},
			nodes: []*api.Node{makeNode("machine1", 1000, priorityutil.DefaultMemoryRequest*10), makeNode("machine2", 1000, priorityutil.DefaultMemoryRequest*10)},
			test:  "test priority of zero-request pod with machine with zero-request pod",
			pods: []*api.Pod{
				{Spec: large1}, {Spec: noResources1},
				{Spec: large2}, {Spec: small2},
			},
		},
		{
			pod:   &api.Pod{Spec: small},
			nodes: []*api.Node{makeNode("machine1", 1000, priorityutil.DefaultMemoryRequest*10), makeNode("machine2", 1000, priorityutil.DefaultMemoryRequest*10)},
			test:  "test priority of nonzero-request pod with machine with zero-request pod",
			pods: []*api.Pod{
				{Spec: large1}, {Spec: noResources1},
				{Spec: large2}, {Spec: small2},
			},
		},
		// The point of this test is to verify that we're not just getting the same score no matter what we schedule.
		{
			pod:   &api.Pod{Spec: large},
			nodes: []*api.Node{makeNode("machine1", 1000, priorityutil.DefaultMemoryRequest*10), makeNode("machine2", 1000, priorityutil.DefaultMemoryRequest*10)},
			test:  "test priority of larger pod with machine with zero-request pod",
			pods: []*api.Pod{
				{Spec: large1}, {Spec: noResources1},
				{Spec: large2}, {Spec: small2},
			},
		},
	}

	const expectedPriority int = 25
	for _, test := range tests {
		// This should match the configuration in defaultPriorities() in
		// plugin/pkg/scheduler/algorithmprovider/defaults/defaults.go if you want
		// to test what's actually in production.
		priorityConfigs := []algorithm.PriorityConfig{
			{Map: algorithmpriorities.LeastRequestedPriorityMap, Weight: 1},
			{Map: algorithmpriorities.BalancedResourceAllocationMap, Weight: 1},
			{
				Function: algorithmpriorities.NewSelectorSpreadPriority(
					algorithm.FakeServiceLister([]*api.Service{}),
//.........这里部分代码省略.........

//.........这里部分代码省略.........
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:    labeledNodes,
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{{"machine11", 10}, {"machine12", 10},
				{"machine21", 0}, {"machine22", 0},
				{"machine01", 0}, {"machine02", 0}},
			test: "three pods, one service pod",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:    labeledNodes,
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{{"machine11", 5}, {"machine12", 5},
				{"machine21", 5}, {"machine22", 5},
				{"machine01", 0}, {"machine02", 0}},
			test: "three pods, two service pods on different machines",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: api.NamespaceDefault}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1, Namespace: "ns1"}},
			},
			nodes:    labeledNodes,
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}, ObjectMeta: api.ObjectMeta{Namespace: api.NamespaceDefault}}},
			expectedList: []schedulerapi.HostPriority{{"machine11", 0}, {"machine12", 0},
				{"machine21", 10}, {"machine22", 10},
				{"machine01", 0}, {"machine02", 0}},
			test: "three service label match pods in different namespaces",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:    labeledNodes,
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{{"machine11", 6}, {"machine12", 6},
				{"machine21", 3}, {"machine22", 3},
				{"machine01", 0}, {"machine02", 0}},
			test: "four pods, three service pods",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:    labeledNodes,
			services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
			expectedList: []schedulerapi.HostPriority{{"machine11", 3}, {"machine12", 3},
				{"machine21", 6}, {"machine22", 6},
				{"machine01", 0}, {"machine02", 0}},
			test: "service with partial pod label matches",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone0Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:    labeledNodes,
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{{"machine11", 7}, {"machine12", 7},
				{"machine21", 5}, {"machine22", 5},
				{"machine01", 0}, {"machine02", 0}},
			test: "service pod on non-zoned node",
		},
	}

	for _, test := range tests {
		nodeNameToInfo := schedulercache.CreateNodeNameToInfoMap(test.pods)
		zoneSpread := ServiceAntiAffinity{podLister: algorithm.FakePodLister(test.pods), serviceLister: algorithm.FakeServiceLister(test.services), label: "zone"}
		list, err := zoneSpread.CalculateAntiAffinityPriority(test.pod, nodeNameToInfo, algorithm.FakeNodeLister(makeLabeledNodeList(test.nodes)))
		if err != nil {
			t.Errorf("unexpected error: %v", err)
		}
		// sort the two lists to avoid failures on account of different ordering
		sort.Sort(test.expectedList)
		sort.Sort(list)
		if !reflect.DeepEqual(test.expectedList, list) {
			t.Errorf("%s: expected %#v, got %#v", test.test, test.expectedList, list)
		}
	}
}

//.........这里部分代码省略.........
		{
			pod: buildPod("", labels1),
			pods: []*api.Pod{
				buildPod(nodeMachine1Zone1, labels2),
				buildPod(nodeMachine1Zone2, labels1),
				buildPod(nodeMachine2Zone2, labels1),
				buildPod(nodeMachine1Zone3, labels2),
				buildPod(nodeMachine2Zone3, labels1),
			},
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{
				{nodeMachine1Zone1, 10},
				{nodeMachine1Zone2, 0}, // Pod on node
				{nodeMachine2Zone2, 0}, // Pod on node
				{nodeMachine1Zone3, 6}, // Pod in zone
				{nodeMachine2Zone3, 3}, // Pod on node
				{nodeMachine3Zone3, 6}, // Pod in zone
			},
			test: "five pods, 3 matching (z2=2, z3=1)",
		},
		{
			pod: buildPod("", labels1),
			pods: []*api.Pod{
				buildPod(nodeMachine1Zone1, labels1),
				buildPod(nodeMachine1Zone2, labels1),
				buildPod(nodeMachine2Zone2, labels2),
				buildPod(nodeMachine1Zone3, labels1),
			},
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{
				{nodeMachine1Zone1, 0}, // Pod on node
				{nodeMachine1Zone2, 0}, // Pod on node
				{nodeMachine2Zone2, 3}, // Pod in zone
				{nodeMachine1Zone3, 0}, // Pod on node
				{nodeMachine2Zone3, 3}, // Pod in zone
				{nodeMachine3Zone3, 3}, // Pod in zone
			},
			test: "four pods, 3 matching (z1=1, z2=1, z3=1)",
		},
		{
			pod: buildPod("", labels1),
			pods: []*api.Pod{
				buildPod(nodeMachine1Zone1, labels1),
				buildPod(nodeMachine1Zone2, labels1),
				buildPod(nodeMachine1Zone3, labels1),
				buildPod(nodeMachine2Zone2, labels2),
			},
			services: []api.Service{{Spec: api.ServiceSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{
				{nodeMachine1Zone1, 0}, // Pod on node
				{nodeMachine1Zone2, 0}, // Pod on node
				{nodeMachine2Zone2, 3}, // Pod in zone
				{nodeMachine1Zone3, 0}, // Pod on node
				{nodeMachine2Zone3, 3}, // Pod in zone
				{nodeMachine3Zone3, 3}, // Pod in zone
			},
			test: "four pods, 3 matching (z1=1, z2=1, z3=1)",
		},
		{
			pod: buildPod("", labels1),
			pods: []*api.Pod{
				buildPod(nodeMachine1Zone3, labels1),
				buildPod(nodeMachine1Zone2, labels1),
				buildPod(nodeMachine1Zone3, labels1),
			},
			rcs: []api.ReplicationController{{Spec: api.ReplicationControllerSpec{Selector: labels1}}},
			expectedList: []schedulerapi.HostPriority{
				// Note that because we put two pods on the same node (nodeMachine1Zone3),
				// the values here are questionable for zone2, in particular for nodeMachine1Zone2.
				// However they kind of make sense; zone1 is still most-highly favored.
				// zone3 is in general least favored, and m1.z3 particularly low priority.
				// We would probably prefer to see a bigger gap between putting a second
				// pod on m1.z2 and putting a pod on m2.z2, but the ordering is correct.
				// This is also consistent with what we have already.
				{nodeMachine1Zone1, 10}, // No pods in zone
				{nodeMachine1Zone2, 5},  // Pod on node
				{nodeMachine2Zone2, 6},  // Pod in zone
				{nodeMachine1Zone3, 0},  // Two pods on node
				{nodeMachine2Zone3, 3},  // Pod in zone
				{nodeMachine3Zone3, 3},  // Pod in zone
			},
			test: "Replication controller spreading (z1=0, z2=1, z3=2)",
		},
	}

	for _, test := range tests {
		nodeNameToInfo := schedulercache.CreateNodeNameToInfoMap(test.pods)
		selectorSpread := SelectorSpread{podLister: algorithm.FakePodLister(test.pods), serviceLister: algorithm.FakeServiceLister(test.services), controllerLister: algorithm.FakeControllerLister(test.rcs), replicaSetLister: algorithm.FakeReplicaSetLister(test.rss)}
		list, err := selectorSpread.CalculateSpreadPriority(test.pod, nodeNameToInfo, algorithm.FakeNodeLister(makeLabeledNodeList(labeledNodes)))
		if err != nil {
			t.Errorf("unexpected error: %v", err)
		}
		// sort the two lists to avoid failures on account of different ordering
		sort.Sort(test.expectedList)
		sort.Sort(list)
		if !reflect.DeepEqual(test.expectedList, list) {
			t.Errorf("%s: expected %#v, got %#v", test.test, test.expectedList, list)
		}
	}
}

//.........这里部分代码省略.........
			nodes:    []string{"machine1", "machine2"},
			services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"baz": "blah"}}}},
			rss:      []extensions.ReplicaSet{{Spec: extensions.ReplicaSetSpec{Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
			// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
			expectedList: []schedulerapi.HostPriority{{"machine1", 0}, {"machine2", 5}},
			test:         "service with partial pod label matches with service and replication controller",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:    []string{"machine1", "machine2"},
			services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
			rcs:      []api.ReplicationController{{Spec: api.ReplicationControllerSpec{Selector: map[string]string{"foo": "bar"}}}},
			// Taken together Service and Replication Controller should match all Pods, hence result should be equal to one above.
			expectedList: []schedulerapi.HostPriority{{"machine1", 0}, {"machine2", 5}},
			test:         "disjoined service and replication controller should be treated equally",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: map[string]string{"foo": "bar", "bar": "foo"}}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:    []string{"machine1", "machine2"},
			services: []api.Service{{Spec: api.ServiceSpec{Selector: map[string]string{"bar": "foo"}}}},
			rss:      []extensions.ReplicaSet{{Spec: extensions.ReplicaSetSpec{Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
			// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
			expectedList: []schedulerapi.HostPriority{{"machine1", 0}, {"machine2", 5}},
			test:         "disjoined service and replication controller should be treated equally",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes: []string{"machine1", "machine2"},
			rcs:   []api.ReplicationController{{Spec: api.ReplicationControllerSpec{Selector: map[string]string{"foo": "bar"}}}},
			// Both Nodes have one pod from the given RC, hence both get 0 score.
			expectedList: []schedulerapi.HostPriority{{"machine1", 0}, {"machine2", 0}},
			test:         "Replication controller with partial pod label matches",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes: []string{"machine1", "machine2"},
			rss:   []extensions.ReplicaSet{{Spec: extensions.ReplicaSetSpec{Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}}}}},
			// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
			expectedList: []schedulerapi.HostPriority{{"machine1", 0}, {"machine2", 0}},
			test:         "Replication controller with partial pod label matches",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes:        []string{"machine1", "machine2"},
			rcs:          []api.ReplicationController{{Spec: api.ReplicationControllerSpec{Selector: map[string]string{"baz": "blah"}}}},
			expectedList: []schedulerapi.HostPriority{{"machine1", 0}, {"machine2", 5}},
			test:         "Replication controller with partial pod label matches",
		},
		{
			pod: &api.Pod{ObjectMeta: api.ObjectMeta{Labels: labels1}},
			pods: []*api.Pod{
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels2}},
				{Spec: zone1Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
				{Spec: zone2Spec, ObjectMeta: api.ObjectMeta{Labels: labels1}},
			},
			nodes: []string{"machine1", "machine2"},
			rss:   []extensions.ReplicaSet{{Spec: extensions.ReplicaSetSpec{Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{"baz": "blah"}}}}},
			// We use ReplicaSet, instead of ReplicationController. The result should be exactly as above.
			expectedList: []schedulerapi.HostPriority{{"machine1", 0}, {"machine2", 5}},
			test:         "Replication controller with partial pod label matches",
		},
	}

	for _, test := range tests {
		nodeNameToInfo := schedulercache.CreateNodeNameToInfoMap(test.pods)
		selectorSpread := SelectorSpread{podLister: algorithm.FakePodLister(test.pods), serviceLister: algorithm.FakeServiceLister(test.services), controllerLister: algorithm.FakeControllerLister(test.rcs), replicaSetLister: algorithm.FakeReplicaSetLister(test.rss)}
		list, err := selectorSpread.CalculateSpreadPriority(test.pod, nodeNameToInfo, algorithm.FakeNodeLister(makeNodeList(test.nodes)))
		if err != nil {
			t.Errorf("unexpected error: %v", err)
		}
		if !reflect.DeepEqual(test.expectedList, list) {
			t.Errorf("%s: expected %#v, got %#v", test.test, test.expectedList, list)
		}
	}
}

//.........这里部分代码省略.........
		{
			pod:    &api.Pod{Spec: api.PodSpec{NodeSelector: map[string]string{"region": "r1"}}},
			node:   "machine1",
			fits:   true,
			labels: []string{"region"},
			test:   "pod with region label match",
		},
		{
			pod:    &api.Pod{Spec: api.PodSpec{NodeSelector: map[string]string{"region": "r2"}}},
			node:   "machine1",
			fits:   false,
			labels: []string{"region"},
			test:   "pod with region label mismatch",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine1"}, ObjectMeta: api.ObjectMeta{Labels: selector}}},
			node:     "machine1",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}}},
			fits:     true,
			labels:   []string{"region"},
			test:     "service pod on same node",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine2"}, ObjectMeta: api.ObjectMeta{Labels: selector}}},
			node:     "machine1",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}}},
			fits:     true,
			labels:   []string{"region"},
			test:     "service pod on different node, region match",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine3"}, ObjectMeta: api.ObjectMeta{Labels: selector}}},
			node:     "machine1",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}}},
			fits:     false,
			labels:   []string{"region"},
			test:     "service pod on different node, region mismatch",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector, Namespace: "ns1"}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine3"}, ObjectMeta: api.ObjectMeta{Labels: selector, Namespace: "ns1"}}},
			node:     "machine1",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}, ObjectMeta: api.ObjectMeta{Namespace: "ns2"}}},
			fits:     true,
			labels:   []string{"region"},
			test:     "service in different namespace, region mismatch",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector, Namespace: "ns1"}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine3"}, ObjectMeta: api.ObjectMeta{Labels: selector, Namespace: "ns2"}}},
			node:     "machine1",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}, ObjectMeta: api.ObjectMeta{Namespace: "ns1"}}},
			fits:     true,
			labels:   []string{"region"},
			test:     "pod in different namespace, region mismatch",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector, Namespace: "ns1"}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine3"}, ObjectMeta: api.ObjectMeta{Labels: selector, Namespace: "ns1"}}},
			node:     "machine1",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}, ObjectMeta: api.ObjectMeta{Namespace: "ns1"}}},
			fits:     false,
			labels:   []string{"region"},
			test:     "service and pod in same namespace, region mismatch",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine2"}, ObjectMeta: api.ObjectMeta{Labels: selector}}},
			node:     "machine1",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}}},
			fits:     false,
			labels:   []string{"region", "zone"},
			test:     "service pod on different node, multiple labels, not all match",
		},
		{
			pod:      &api.Pod{ObjectMeta: api.ObjectMeta{Labels: selector}},
			pods:     []*api.Pod{{Spec: api.PodSpec{NodeName: "machine5"}, ObjectMeta: api.ObjectMeta{Labels: selector}}},
			node:     "machine4",
			services: []api.Service{{Spec: api.ServiceSpec{Selector: selector}}},
			fits:     true,
			labels:   []string{"region", "zone"},
			test:     "service pod on different node, multiple labels, all match",
		},
	}

	for _, test := range tests {
		nodes := []api.Node{node1, node2, node3, node4, node5}
		serviceAffinity := ServiceAffinity{algorithm.FakePodLister(test.pods), algorithm.FakeServiceLister(test.services), FakeNodeListInfo(nodes), test.labels}
		fits, err := serviceAffinity.CheckServiceAffinity(test.pod, []*api.Pod{}, test.node)
		if err != nil {
			t.Errorf("unexpected error: %v", err)
		}
		if fits != test.fits {
			t.Errorf("%s: expected: %v got %v", test.test, test.fits, fits)
		}
	}
}