/* Copyright 2014 Google Inc. 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 scheduler import ( "testing" "github.com/GoogleCloudPlatform/kubernetes/pkg/api" "github.com/GoogleCloudPlatform/kubernetes/pkg/resources" "github.com/GoogleCloudPlatform/kubernetes/pkg/util" ) type FakeNodeInfo api.Minion func (n FakeNodeInfo) GetNodeInfo(nodeName string) (api.Minion, error) { return api.Minion(n), nil } func makeResources(milliCPU int, memory int) api.NodeResources { return api.NodeResources{ Capacity: api.ResourceList{ resources.CPU: util.IntOrString{ IntVal: milliCPU, Kind: util.IntstrInt, }, resources.Memory: util.IntOrString{ IntVal: memory, Kind: util.IntstrInt, }, }, } } func newResourcePod(usage ...resourceRequest) api.Pod { containers := []api.Container{} for _, req := range usage { containers = append(containers, api.Container{ Memory: req.memory, CPU: req.milliCPU, }) } return api.Pod{ DesiredState: api.PodState{ Manifest: api.ContainerManifest{ Containers: containers, }, }, } } func TestPodFitsResources(t *testing.T) { tests := []struct { pod api.Pod existingPods []api.Pod fits bool test string }{ { pod: api.Pod{}, existingPods: []api.Pod{ newResourcePod(resourceRequest{milliCPU: 10, memory: 20}), }, fits: true, test: "no resources requested always fits", }, { pod: newResourcePod(resourceRequest{milliCPU: 1, memory: 1}), existingPods: []api.Pod{ newResourcePod(resourceRequest{milliCPU: 10, memory: 20}), }, fits: false, test: "too many resources fails", }, { pod: newResourcePod(resourceRequest{milliCPU: 1, memory: 1}), existingPods: []api.Pod{ newResourcePod(resourceRequest{milliCPU: 5, memory: 5}), }, fits: true, test: "both resources fit", }, { pod: newResourcePod(resourceRequest{milliCPU: 1, memory: 2}), existingPods: []api.Pod{ newResourcePod(resourceRequest{milliCPU: 5, memory: 19}), }, fits: false, test: "one resources fits", }, { pod: newResourcePod(resourceRequest{milliCPU: 5, memory: 1}), existingPods: []api.Pod{ newResourcePod(resourceRequest{milliCPU: 5, memory: 19}), }, fits: true, test: "equal edge case", }, } for _, test := range tests { node := api.Minion{NodeResources: makeResources(10, 20)} fit := ResourceFit{FakeNodeInfo(node)} fits, err := fit.PodFitsResources(test.pod, test.existingPods, "machine") 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) } } } func TestPodFitsPorts(t *testing.T) { tests := []struct { pod api.Pod existingPods []api.Pod fits bool test string }{ { pod: api.Pod{}, existingPods: []api.Pod{}, fits: true, test: "nothing running", }, { pod: newPod("m1", 8080), existingPods: []api.Pod{ newPod("m1", 9090), }, fits: true, test: "other port", }, { pod: newPod("m1", 8080), existingPods: []api.Pod{ newPod("m1", 8080), }, fits: false, test: "same port", }, { pod: newPod("m1", 8000, 8080), existingPods: []api.Pod{ newPod("m1", 8080), }, fits: false, test: "second port", }, { pod: newPod("m1", 8000, 8080), existingPods: []api.Pod{ newPod("m1", 8001, 8080), }, fits: false, test: "second port", }, } for _, test := range tests { fits, err := PodFitsPorts(test.pod, test.existingPods, "machine") if err != nil { t.Errorf("unexpected error: %v") } if test.fits != fits { t.Errorf("%s: expected %v, saw %v", test.test, test.fits, fits) } } }