limitations under the License.
*/

package helper

import v1 "k8s.io/api/core/v1"

// DoNotScheduleTaintsFilterFunc returns the filter function that can
// filter out the node taints that reject scheduling Pod on a Node.
func DoNotScheduleTaintsFilterFunc() func(t *v1.Taint) bool {
	return func(t *v1.Taint) bool {
		// PodToleratesNodeTaints is only interested in NoSchedule and NoExecute taints.

	if originalNode != nil {
		_, wasUntolerated = v1helper.FindMatchingUntoleratedTaint(originalNode.Spec.Taints, pod.Spec.Tolerations, helper.DoNotScheduleTaintsFilterFunc())
	}

	_, isUntolerated := v1helper.FindMatchingUntoleratedTaint(modifiedNode.Spec.Taints, pod.Spec.Tolerations, helper.DoNotScheduleTaintsFilterFunc())

	if wasUntolerated && !isUntolerated {

		{
			name: "should not include the taints with PreferNoSchedule effect",
			taint: &v1.Taint{
				Effect: v1.TaintEffectPreferNoSchedule,
			},
			expected: false,
		},
	}

	filterPredicate := DoNotScheduleTaintsFilterFunc()

	for i := range tests {
		test := tests[i]
		t.Run(test.name, func(t *testing.T) {
			if got := filterPredicate(test.taint); got != test.expected {

			return false
		}
	}

	if tsc.NodeTaintsPolicy == v1.NodeInclusionPolicyHonor {
		if _, untolerated := v1helper.FindMatchingUntoleratedTaint(node.Spec.Taints, pod.Spec.Tolerations, helper.DoNotScheduleTaintsFilterFunc()); untolerated {
			return false
		}
	}
	return true
}

// buildDefaultConstraints builds the constraints for a pod using
// .DefaultConstraints and the selectors from the services, replication