TopologyPairToPodCounts: make(map[topologyPair]*int64),
	}
	// Only require that nodes have all the topology labels if using
	// non-system-default spreading rules. This allows nodes that don't have a
	// zone label to still have hostname spreading.
	requireAllTopologies := len(pod.Spec.TopologySpreadConstraints) > 0 || !pl.systemDefaulted
	err = pl.initPreScoreState(state, pod, filteredNodes, requireAllTopologies)

		return
	}

	requiredSchedulingTerm := nodeaffinity.GetRequiredNodeAffinity(preemptorPod)
	if !pl.enableNodeInclusionPolicyInPodTopologySpread {
		// spreading is applied to nodes that pass those filters.
		// Ignore parsing errors for backwards compatibility.
		if match, _ := requiredSchedulingTerm.Match(node); !match {
			return
		}
	}

    - path: test/integration/scheduler_perf/config/templates/pod-with-preferred-topology-spreading.yaml
      match: registry.k8s.io\/pause:\d+\.\d+
    - path: test/integration/scheduler_perf/config/templates/pod-with-secret-volume.yaml
      match: registry.k8s.io\/pause:\d+\.\d+
    - path: test/integration/scheduler_perf/config/templates/pod-with-topology-spreading.yaml
      match: registry.k8s.io\/pause:\d+\.\d+

* Keep commits discrete. Avoid including multiple unrelated changes in a single commit.
* Keep commits self-contained. Avoid spreading a single change across multiple commits. A single commit should make sense in isolation.

### Testing changes

After making changes, you can test your code in 2 ways:

1. Run tests.

	// ensure a minimum level of spreading.
	minFeasibleNodesToFind = 100
	// minFeasibleNodesPercentageToFind is the minimum percentage of nodes that
	// would be scored in each scheduling cycle. This is a semi-arbitrary value
	// to ensure that a certain minimum of nodes are checked for feasibility.
	// This in turn helps ensure a minimum level of spreading.
	minFeasibleNodesPercentageToFind = 5

func getPersistentVolumeClaimName(set *apps.StatefulSet, claim *v1.PersistentVolumeClaim, ordinal int) string {
	// NOTE: This name format is used by the heuristics for zone spreading in ChooseZoneForVolume
	return fmt.Sprintf("%s-%s-%d", claim.Name, set.Name, ordinal)
}

// isMemberOf tests if pod is a member of set.
func isMemberOf(set *apps.StatefulSet, pod *v1.Pod) bool {

See the License for the specific language governing permissions and
limitations under the License.
*/

// Package streaming implements encoder and decoder for streams
// of runtime.Objects over io.Writer/Readers.
package streaming

import (
	"bytes"
	"fmt"
	"io"

	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/runtime/schema"
)

func TestZeroRequest(t *testing.T) {
	// A pod with no resources. We expect spreading to count it as having the default resources.
	noResources := v1.PodSpec{
		Containers: []v1.Container{
			{},
		},
	}
	noResources1 := noResources
	noResources1.NodeName = "node1"
	// A pod with the same resources as a 0-request pod gets by default as its resources (for spreading).
	small := v1.PodSpec{
		Containers: []v1.Container{
			{

}

// newStreamingBitrotWriterBuffer returns streaming bitrot writer implementation.
// The output is written to the supplied writer w.
func newStreamingBitrotWriterBuffer(w io.Writer, algo BitrotAlgorithm, shardSize int64) io.Writer {
	return &streamingBitrotWriter{iow: ioutil.NopCloser(w), h: algo.New(), shardSize: shardSize, canClose: nil, closeWithErr: func(err error) {}}
}

// Returns streaming bitrot writer implementation.

			failedNodes: []*v1.Node{},
			objs: []runtime.Object{
				&v1.Service{Spec: v1.ServiceSpec{Selector: map[string]string{"foo": ""}}},
			},
			want: []framework.NodeScore{
				// Same scores as if we were using one spreading constraint.
				{Name: "node-a", Score: 44},
				{Name: "node-b", Score: 66},
				{Name: "node-c", Score: 77},
				{Name: "node-d", Score: 100},
			},
		},
		{