Added the first predicate as a filter plugin: PodToleratesNodeTaints.

pkg/scheduler/framework/plugins/migration/utils_test.go

@@ -0,0 +1,68 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package migration
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+
+	"k8s.io/kubernetes/pkg/scheduler/algorithm/predicates"
+	framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
+)
+
+func TestPredicateResultToFrameworkStatus(t *testing.T) {
+	tests := []struct {
+		name       string
+		err        error
+		reasons    []predicates.PredicateFailureReason
+		wantStatus *framework.Status
+	}{
+		{
+			name: "Success",
+		},
+		{
+			name:       "Error",
+			err:        errors.New("Failed with error"),
+			wantStatus: framework.NewStatus(framework.Error, "Failed with error"),
+		},
+		{
+			name:       "Error with reason",
+			err:        errors.New("Failed with error"),
+			reasons:    []predicates.PredicateFailureReason{predicates.ErrDiskConflict},
+			wantStatus: framework.NewStatus(framework.Error, "Failed with error"),
+		},
+		{
+			name:       "Unschedulable",
+			reasons:    []predicates.PredicateFailureReason{predicates.ErrExistingPodsAntiAffinityRulesNotMatch},
+			wantStatus: framework.NewStatus(framework.Unschedulable, "node(s) didn't satisfy existing pods anti-affinity rules"),
+		},
+		{
+			name:       "Unschedulable and Unresolvable",
+			reasons:    []predicates.PredicateFailureReason{predicates.ErrDiskConflict, predicates.ErrNodeSelectorNotMatch},
+			wantStatus: framework.NewStatus(framework.UnschedulableAndUnresolvable, "node(s) didn't match node selector"),
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotStatus := PredicateResultToFrameworkStatus(tt.reasons, tt.err)
+			if !reflect.DeepEqual(tt.wantStatus, gotStatus) {
+				t.Errorf("Got status %v, want %v", gotStatus, tt.wantStatus)
+			}
+		})
+	}
+}