c511c90b59
and implement Metrics Provider for CSI driver Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
114 lines
3.6 KiB
Go
114 lines
3.6 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package csi
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import (
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"io"
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"testing"
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csipbv1 "github.com/container-storage-interface/spec/lib/go/csi"
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"k8s.io/apimachinery/pkg/api/resource"
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"k8s.io/kubernetes/pkg/volume/csi/fake"
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)
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func TestGetMetrics(t *testing.T) {
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tests := []struct {
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name string
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volumeID string
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targetPath string
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expectSuccess bool
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}{
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{
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name: "with valid name and volume id",
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expectSuccess: true,
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volumeID: "foobar",
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targetPath: "/mnt/foo",
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},
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}
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for _, tc := range tests {
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metricsGetter := &metricsCsi{volumeID: tc.volumeID, targetPath: tc.targetPath}
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metricsGetter.csiClient = &csiDriverClient{
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driverName: "com.google.gcepd",
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nodeV1ClientCreator: func(addr csiAddr) (csipbv1.NodeClient, io.Closer, error) {
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nodeClient := fake.NewNodeClientWithVolumeStats(true /* VolumeStatsCapable */)
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fakeCloser := fake.NewCloser(t)
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nodeClient.SetNodeVolumeStatsResp(getRawVolumeInfo())
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return nodeClient, fakeCloser, nil
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},
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}
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metrics, err := metricsGetter.GetMetrics()
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if err != nil {
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t.Fatalf("for %s: unexpected error : %v", tc.name, err)
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}
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if metrics == nil {
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t.Fatalf("unexpected nil metrics")
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}
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expectedMetrics := getRawVolumeInfo()
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for _, usage := range expectedMetrics.Usage {
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if usage.Unit == csipbv1.VolumeUsage_BYTES {
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availableBytes := resource.NewQuantity(usage.Available, resource.BinarySI)
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totalBytes := resource.NewQuantity(usage.Total, resource.BinarySI)
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usedBytes := resource.NewQuantity(usage.Used, resource.BinarySI)
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if metrics.Available.Cmp(*availableBytes) != 0 {
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t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *availableBytes, *(metrics.Available))
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}
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if metrics.Capacity.Cmp(*totalBytes) != 0 {
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t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *totalBytes, *(metrics.Capacity))
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}
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if metrics.Used.Cmp(*usedBytes) != 0 {
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t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *usedBytes, *(metrics.Used))
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}
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}
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if usage.Unit == csipbv1.VolumeUsage_INODES {
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freeInodes := resource.NewQuantity(usage.Available, resource.BinarySI)
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inodes := resource.NewQuantity(usage.Total, resource.BinarySI)
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usedInodes := resource.NewQuantity(usage.Used, resource.BinarySI)
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if metrics.InodesFree.Cmp(*freeInodes) != 0 {
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t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *freeInodes, *(metrics.InodesFree))
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}
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if metrics.Inodes.Cmp(*inodes) != 0 {
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t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *inodes, *(metrics.Inodes))
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}
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if metrics.InodesUsed.Cmp(*usedInodes) != 0 {
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t.Fatalf("for %s: error: expected :%v , got: %v", tc.name, *usedInodes, *(metrics.InodesUsed))
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}
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}
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}
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}
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}
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func getRawVolumeInfo() *csipbv1.NodeGetVolumeStatsResponse {
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return &csipbv1.NodeGetVolumeStatsResponse{
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Usage: []*csipbv1.VolumeUsage{
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{
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Available: int64(10),
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Total: int64(10),
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Used: int64(2),
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Unit: csipbv1.VolumeUsage_BYTES,
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},
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{
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Available: int64(100),
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Total: int64(100),
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Used: int64(20),
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Unit: csipbv1.VolumeUsage_INODES,
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},
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},
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}
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}
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