mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2024-12-14 11:57:51 +00:00
383 lines
13 KiB
Go
383 lines
13 KiB
Go
package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"regexp"
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"testing"
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"time"
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"github.com/kubernetes-incubator/node-feature-discovery/source"
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"github.com/kubernetes-incubator/node-feature-discovery/source/fake"
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"github.com/kubernetes-incubator/node-feature-discovery/source/panic_fake"
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. "github.com/smartystreets/goconvey/convey"
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"github.com/vektra/errors"
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api "k8s.io/api/core/v1"
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meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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k8sclient "k8s.io/client-go/kubernetes"
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)
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func TestDiscoveryWithMockSources(t *testing.T) {
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Convey("When I discover features from fake source and update the node using fake client", t, func() {
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mockFeatureSource := new(MockFeatureSource)
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fakeFeatureSourceName := string("testSource")
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fakeFeatureNames := []string{"testfeature1", "testfeature2", "testfeature3"}
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fakeFeatures := source.Features{}
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fakeFeatureLabels := Labels{}
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for _, f := range fakeFeatureNames {
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fakeFeatures[f] = true
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fakeFeatureLabels[fmt.Sprintf("%s-testSource-%s", prefix, f)] = "true"
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}
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fakeFeatureSource := source.FeatureSource(mockFeatureSource)
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Convey("When I successfully get the labels from the mock source", func() {
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mockFeatureSource.On("Name").Return(fakeFeatureSourceName)
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mockFeatureSource.On("Discover").Return(fakeFeatures, nil)
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returnedLabels, err := getFeatureLabels(fakeFeatureSource)
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Convey("Proper label is returned", func() {
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So(returnedLabels, ShouldResemble, fakeFeatureLabels)
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})
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Convey("Error is nil", func() {
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So(err, ShouldBeNil)
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})
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})
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Convey("When I fail to get the labels from the mock source", func() {
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expectedError := errors.New("fake error")
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mockFeatureSource.On("Discover").Return(nil, expectedError)
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returnedLabels, err := getFeatureLabels(fakeFeatureSource)
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Convey("No label is returned", func() {
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So(returnedLabels, ShouldBeNil)
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})
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Convey("Error is produced", func() {
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So(err, ShouldEqual, expectedError)
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})
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})
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mockAPIHelper := new(MockAPIHelpers)
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testHelper := APIHelpers(mockAPIHelper)
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var mockClient *k8sclient.Clientset
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var mockNode *api.Node
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Convey("When I successfully update the node with feature labels", func() {
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mockAPIHelper.On("GetClient").Return(mockClient, nil)
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mockAPIHelper.On("GetNode", mockClient).Return(mockNode, nil).Once()
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mockAPIHelper.On("AddLabels", mockNode, fakeFeatureLabels).Return().Once()
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mockAPIHelper.On("RemoveLabels", mockNode, prefix).Return().Once()
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mockAPIHelper.On("UpdateNode", mockClient, mockNode).Return(nil).Once()
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noPublish := false
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err := updateNodeWithFeatureLabels(testHelper, noPublish, fakeFeatureLabels)
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Convey("Error is nil", func() {
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So(err, ShouldBeNil)
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})
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})
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Convey("When I fail to update the node with feature labels", func() {
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expectedError := errors.New("fake error")
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mockAPIHelper.On("GetClient").Return(nil, expectedError)
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noPublish := false
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err := updateNodeWithFeatureLabels(testHelper, noPublish, fakeFeatureLabels)
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Convey("Error is produced", func() {
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So(err, ShouldEqual, expectedError)
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})
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})
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Convey("When I fail to get a mock client while advertising feature labels", func() {
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expectedError := errors.New("fake error")
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mockAPIHelper.On("GetClient").Return(nil, expectedError)
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err := advertiseFeatureLabels(testHelper, fakeFeatureLabels)
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Convey("Error is produced", func() {
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So(err, ShouldEqual, expectedError)
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})
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})
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Convey("When I fail to get a mock node while advertising feature labels", func() {
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expectedError := errors.New("fake error")
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mockAPIHelper.On("GetClient").Return(mockClient, nil)
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mockAPIHelper.On("GetNode", mockClient).Return(nil, expectedError).Once()
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err := advertiseFeatureLabels(testHelper, fakeFeatureLabels)
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Convey("Error is produced", func() {
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So(err, ShouldEqual, expectedError)
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})
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})
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Convey("When I fail to update a mock node while advertising feature labels", func() {
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expectedError := errors.New("fake error")
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mockAPIHelper.On("GetClient").Return(mockClient, nil)
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mockAPIHelper.On("GetNode", mockClient).Return(mockNode, nil).Once()
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mockAPIHelper.On("RemoveLabels", mockNode, prefix).Return().Once()
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mockAPIHelper.On("AddLabels", mockNode, fakeFeatureLabels).Return().Once()
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mockAPIHelper.On("UpdateNode", mockClient, mockNode).Return(expectedError).Once()
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err := advertiseFeatureLabels(testHelper, fakeFeatureLabels)
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Convey("Error is produced", func() {
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So(err, ShouldEqual, expectedError)
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})
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})
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})
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}
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func TestArgsParse(t *testing.T) {
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Convey("When parsing command line arguments", t, func() {
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argv1 := []string{"--no-publish", "--oneshot"}
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argv2 := []string{"--sources=fake1,fake2,fake3", "--sleep-interval=30s"}
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argv3 := []string{"--label-whitelist=.*rdt.*"}
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argv4 := []string{"--no-publish", "--sources=fake1,fake2,fake3"}
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Convey("When --no-publish and --oneshot flags are passed", func() {
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args := argsParse(argv1)
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Convey("noPublish is set and args.sources is set to the default value", func() {
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So(args.sleepInterval, ShouldEqual, 60*time.Second)
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So(args.noPublish, ShouldBeTrue)
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So(args.oneshot, ShouldBeTrue)
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So(args.sources, ShouldResemble, []string{"cpuid", "iommu", "memory", "network", "pci", "pstate", "rdt", "selinux", "storage"})
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So(len(args.labelWhiteList), ShouldEqual, 0)
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})
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})
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Convey("When --sources flag is passed and set to some values, --sleep-inteval is specified", func() {
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args := argsParse(argv2)
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Convey("args.sources is set to appropriate values", func() {
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So(args.sleepInterval, ShouldEqual, 30*time.Second)
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So(args.noPublish, ShouldBeFalse)
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So(args.oneshot, ShouldBeFalse)
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So(args.sources, ShouldResemble, []string{"fake1", "fake2", "fake3"})
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So(len(args.labelWhiteList), ShouldEqual, 0)
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})
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})
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Convey("When --label-whitelist flag is passed and set to some value", func() {
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args := argsParse(argv3)
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Convey("args.labelWhiteList is set to appropriate value and args.sources is set to default value", func() {
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So(args.noPublish, ShouldBeFalse)
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So(args.sources, ShouldResemble, []string{"cpuid", "iommu", "memory", "network", "pci", "pstate", "rdt", "selinux", "storage"})
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So(args.labelWhiteList, ShouldResemble, ".*rdt.*")
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})
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})
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Convey("When --no-publish and --sources flag are passed and --sources flag is set to some value", func() {
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args := argsParse(argv4)
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Convey("--no-publish is set and args.sources is set to appropriate values", func() {
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So(args.noPublish, ShouldBeTrue)
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So(args.sources, ShouldResemble, []string{"fake1", "fake2", "fake3"})
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So(len(args.labelWhiteList), ShouldEqual, 0)
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})
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})
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})
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}
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func TestConfigParse(t *testing.T) {
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Convey("When parsing configuration file", t, func() {
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Convey("When non-accessible file is given", func() {
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err := configParse("non-existing-file", "")
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Convey("Should return error", func() {
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So(err, ShouldNotBeNil)
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})
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})
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// Create a temporary config file
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f, err := ioutil.TempFile("", "nfd-test-")
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defer os.Remove(f.Name())
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So(err, ShouldBeNil)
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f.WriteString(`sources:
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pci:
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deviceClassWhitelist:
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- "ff"`)
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f.Close()
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Convey("When proper config file is given", func() {
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err := configParse(f.Name(), "")
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Convey("Should return error", func() {
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So(err, ShouldBeNil)
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So(config.Sources.Pci.DeviceClassWhitelist, ShouldResemble, []string{"ff"})
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})
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})
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})
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}
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func TestConfigureParameters(t *testing.T) {
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Convey("When configuring parameters for node feature discovery", t, func() {
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Convey("When no sourcesWhiteList and labelWhiteListStr are passed", func() {
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sourcesWhiteList := []string{}
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labelWhiteListStr := ""
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emptyRegexp, _ := regexp.Compile("")
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enabledSources, labelWhiteList, err := configureParameters(sourcesWhiteList, labelWhiteListStr)
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Convey("Error should not be produced", func() {
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So(err, ShouldBeNil)
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})
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Convey("No sourcesWhiteList or labelWhiteList are returned", func() {
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So(len(enabledSources), ShouldEqual, 0)
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So(labelWhiteList, ShouldResemble, emptyRegexp)
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})
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})
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Convey("When sourcesWhiteList is passed", func() {
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sourcesWhiteList := []string{"fake"}
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labelWhiteListStr := ""
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emptyRegexp, _ := regexp.Compile("")
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enabledSources, labelWhiteList, err := configureParameters(sourcesWhiteList, labelWhiteListStr)
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Convey("Error should not be produced", func() {
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So(err, ShouldBeNil)
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})
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Convey("Proper sourcesWhiteList are returned", func() {
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So(len(enabledSources), ShouldEqual, 1)
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So(enabledSources[0], ShouldHaveSameTypeAs, fake.Source{})
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So(labelWhiteList, ShouldResemble, emptyRegexp)
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})
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})
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Convey("When invalid labelWhiteListStr is passed", func() {
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sourcesWhiteList := []string{""}
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labelWhiteListStr := "*"
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enabledSources, labelWhiteList, err := configureParameters(sourcesWhiteList, labelWhiteListStr)
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Convey("Error is produced", func() {
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So(enabledSources, ShouldBeNil)
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So(labelWhiteList, ShouldBeNil)
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So(err, ShouldNotBeNil)
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})
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})
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Convey("When valid labelWhiteListStr is passed", func() {
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sourcesWhiteList := []string{""}
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labelWhiteListStr := ".*rdt.*"
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expectRegexp, err := regexp.Compile(".*rdt.*")
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enabledSources, labelWhiteList, err := configureParameters(sourcesWhiteList, labelWhiteListStr)
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Convey("Error should not be produced", func() {
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So(err, ShouldBeNil)
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})
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Convey("Proper labelWhiteList is returned", func() {
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So(len(enabledSources), ShouldEqual, 0)
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So(labelWhiteList, ShouldResemble, expectRegexp)
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})
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})
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})
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}
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func TestCreateFeatureLabels(t *testing.T) {
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Convey("When creating feature labels from the configured sources", t, func() {
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Convey("When fake feature source is configured", func() {
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emptyLabelWL, _ := regexp.Compile("")
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fakeFeatureSource := source.FeatureSource(new(fake.Source))
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sources := []source.FeatureSource{}
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sources = append(sources, fakeFeatureSource)
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labels := createFeatureLabels(sources, emptyLabelWL)
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Convey("Proper fake labels are returned", func() {
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So(len(labels), ShouldEqual, 4)
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So(labels, ShouldContainKey, prefix+"-fake-fakefeature1")
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So(labels, ShouldContainKey, prefix+"-fake-fakefeature2")
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So(labels, ShouldContainKey, prefix+"-fake-fakefeature3")
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})
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})
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Convey("When fake feature source is configured with a whitelist that doesn't match", func() {
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emptyLabelWL, _ := regexp.Compile(".*rdt.*")
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fakeFeatureSource := source.FeatureSource(new(fake.Source))
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sources := []source.FeatureSource{}
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sources = append(sources, fakeFeatureSource)
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labels := createFeatureLabels(sources, emptyLabelWL)
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Convey("fake labels are not returned", func() {
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So(len(labels), ShouldEqual, 1)
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So(labels, ShouldNotContainKey, prefix+"-fake-fakefeature1")
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So(labels, ShouldNotContainKey, prefix+"-fake-fakefeature2")
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So(labels, ShouldNotContainKey, prefix+"-fake-fakefeature3")
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})
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})
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})
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}
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func TestAddLabels(t *testing.T) {
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Convey("When adding labels", t, func() {
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helper := k8sHelpers{}
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labels := Labels{}
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n := &api.Node{
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ObjectMeta: meta_v1.ObjectMeta{
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Labels: map[string]string{},
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},
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}
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Convey("If no labels are passed", func() {
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helper.AddLabels(n, labels)
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Convey("None should be added", func() {
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So(len(n.Labels), ShouldEqual, 0)
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})
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})
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Convey("They should be added to the node.Labels", func() {
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test1 := prefix + ".test1"
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labels[test1] = "true"
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helper.AddLabels(n, labels)
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So(n.Labels, ShouldContainKey, test1)
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})
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})
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}
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func TestRemoveLabels(t *testing.T) {
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Convey("When removing labels", t, func() {
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helper := k8sHelpers{}
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n := &api.Node{
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ObjectMeta: meta_v1.ObjectMeta{
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Labels: map[string]string{
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"single": "123",
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"multiple_A": "a",
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"multiple_B": "b",
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},
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},
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}
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Convey("a unique label should be removed", func() {
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helper.RemoveLabels(n, "single")
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So(len(n.Labels), ShouldEqual, 2)
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So(n.Labels, ShouldNotContainKey, "single")
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})
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Convey("a non-unique search string should remove all matching keys", func() {
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helper.RemoveLabels(n, "multiple")
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So(len(n.Labels), ShouldEqual, 1)
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So(n.Labels, ShouldNotContainKey, "multiple_A")
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So(n.Labels, ShouldNotContainKey, "multiple_B")
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})
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Convey("a search string with no matches should not alter labels", func() {
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helper.RemoveLabels(n, "unique")
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So(n.Labels, ShouldContainKey, "single")
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So(n.Labels, ShouldContainKey, "multiple_A")
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So(n.Labels, ShouldContainKey, "multiple_B")
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So(len(n.Labels), ShouldEqual, 3)
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})
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})
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}
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func TestGetFeatureLabels(t *testing.T) {
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Convey("When I get feature labels and panic occurs during discovery of a feature source", t, func() {
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fakePanicFeatureSource := source.FeatureSource(new(panic_fake.Source))
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returnedLabels, err := getFeatureLabels(fakePanicFeatureSource)
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Convey("No label is returned", func() {
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So(len(returnedLabels), ShouldEqual, 0)
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})
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Convey("Error is produced and panic error is returned", func() {
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So(err, ShouldResemble, fmt.Errorf("fake panic error"))
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})
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})
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}
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