Controller codebase refactoring

pkg/controller/node/podevictor_test.go

@@ -0,0 +1,146 @@
+/*
+Copyright 2015 The Kubernetes Authors All rights reserved.
+
+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 nodecontroller
+
+import (
+	"testing"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
+)
+
+func CheckQueueEq(lhs, rhs []string) bool {
+	for i := 0; i < len(lhs); i++ {
+		if rhs[i] != lhs[i] {
+			return false
+		}
+	}
+	return true
+}
+
+func CheckSetEq(lhs, rhs util.StringSet) bool {
+	return lhs.HasAll(rhs.List()...) && rhs.HasAll(lhs.List()...)
+}
+
+func TestAddNode(t *testing.T) {
+	evictor := NewPodEvictor(util.NewFakeRateLimiter())
+	evictor.AddNodeToEvict("first")
+	evictor.AddNodeToEvict("second")
+	evictor.AddNodeToEvict("third")
+
+	queuePattern := []string{"first", "second", "third"}
+	if len(evictor.queue.queue) != len(queuePattern) {
+		t.Fatalf("Queue %v should have lenght %d", evictor.queue.queue, len(queuePattern))
+	}
+	if !CheckQueueEq(queuePattern, evictor.queue.queue) {
+		t.Errorf("Invalid queue. Got %v, expected %v", evictor.queue.queue, queuePattern)
+	}
+
+	setPattern := util.NewStringSet("first", "second", "third")
+	if len(evictor.queue.set) != len(setPattern) {
+		t.Fatalf("Map %v should have length %d", evictor.queue.set, len(setPattern))
+	}
+	if !CheckSetEq(setPattern, evictor.queue.set) {
+		t.Errorf("Invalid map. Got %v, expected %v", evictor.queue.set, setPattern)
+	}
+}
+
+func TestDelNode(t *testing.T) {
+	evictor := NewPodEvictor(util.NewFakeRateLimiter())
+	evictor.AddNodeToEvict("first")
+	evictor.AddNodeToEvict("second")
+	evictor.AddNodeToEvict("third")
+	evictor.RemoveNodeToEvict("first")
+
+	queuePattern := []string{"second", "third"}
+	if len(evictor.queue.queue) != len(queuePattern) {
+		t.Fatalf("Queue %v should have length %d", evictor.queue.queue, len(queuePattern))
+	}
+	if !CheckQueueEq(queuePattern, evictor.queue.queue) {
+		t.Errorf("Invalid queue. Got %v, expected %v", evictor.queue.queue, queuePattern)
+	}
+
+	setPattern := util.NewStringSet("second", "third")
+	if len(evictor.queue.set) != len(setPattern) {
+		t.Fatalf("Map %v should have length %d", evictor.queue.set, len(setPattern))
+	}
+	if !CheckSetEq(setPattern, evictor.queue.set) {
+		t.Errorf("Invalid map. Got %v, expected %v", evictor.queue.set, setPattern)
+	}
+
+	evictor = NewPodEvictor(util.NewFakeRateLimiter())
+	evictor.AddNodeToEvict("first")
+	evictor.AddNodeToEvict("second")
+	evictor.AddNodeToEvict("third")
+	evictor.RemoveNodeToEvict("second")
+
+	queuePattern = []string{"first", "third"}
+	if len(evictor.queue.queue) != len(queuePattern) {
+		t.Fatalf("Queue %v should have lenght %d", evictor.queue.queue, len(queuePattern))
+	}
+	if !CheckQueueEq(queuePattern, evictor.queue.queue) {
+		t.Errorf("Invalid queue. Got %v, expected %v", evictor.queue.queue, queuePattern)
+	}
+
+	setPattern = util.NewStringSet("first", "third")
+	if len(evictor.queue.set) != len(setPattern) {
+		t.Fatalf("Map %v should have length %d", evictor.queue.set, len(setPattern))
+	}
+	if !CheckSetEq(setPattern, evictor.queue.set) {
+		t.Errorf("Invalid map. Got %v, expected %v", evictor.queue.set, setPattern)
+	}
+
+	evictor = NewPodEvictor(util.NewFakeRateLimiter())
+	evictor.AddNodeToEvict("first")
+	evictor.AddNodeToEvict("second")
+	evictor.AddNodeToEvict("third")
+	evictor.RemoveNodeToEvict("third")
+
+	queuePattern = []string{"first", "second"}
+	if len(evictor.queue.queue) != len(queuePattern) {
+		t.Fatalf("Queue %v should have lenght %d", evictor.queue.queue, len(queuePattern))
+	}
+	if !CheckQueueEq(queuePattern, evictor.queue.queue) {
+		t.Errorf("Invalid queue. Got %v, expected %v", evictor.queue.queue, queuePattern)
+	}
+
+	setPattern = util.NewStringSet("first", "second")
+	if len(evictor.queue.set) != len(setPattern) {
+		t.Fatalf("Map %v should have length %d", evictor.queue.set, len(setPattern))
+	}
+	if !CheckSetEq(setPattern, evictor.queue.set) {
+		t.Errorf("Invalid map. Got %v, expected %v", evictor.queue.set, setPattern)
+	}
+}
+
+func TestEvictNode(t *testing.T) {
+	evictor := NewPodEvictor(util.NewFakeRateLimiter())
+	evictor.AddNodeToEvict("first")
+	evictor.AddNodeToEvict("second")
+	evictor.AddNodeToEvict("third")
+	evictor.RemoveNodeToEvict("second")
+
+	deletedMap := util.NewStringSet()
+	evictor.TryEvict(func(nodeName string) { deletedMap.Insert(nodeName) })
+
+	setPattern := util.NewStringSet("first", "third")
+	if len(deletedMap) != len(setPattern) {
+		t.Fatalf("Map %v should have length %d", evictor.queue.set, len(setPattern))
+	}
+	if !CheckSetEq(setPattern, deletedMap) {
+		t.Errorf("Invalid map. Got %v, expected %v", deletedMap, setPattern)
+	}
+}