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|
package main
import (
"flag"
"io/ioutil"
"os"
"time"
"github.com/edwarnicke/exechelper"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/suite"
"gopkg.in/yaml.v3"
)
const (
DEFAULT_NETWORK_NUM int = 1
)
var isPersistent = flag.Bool("persist", false, "persists topology config")
var isVerbose = flag.Bool("verbose", false, "verbose test output")
var isUnconfiguring = flag.Bool("unconfigure", false, "remove topology")
var isVppDebug = flag.Bool("debug", false, "attach gdb to vpp")
var nConfiguredCpus = flag.Int("cpus", 1, "number of CPUs assigned to vpp")
type HstSuite struct {
suite.Suite
containers map[string]*Container
volumes []string
netConfigs []NetConfig
netInterfaces map[string]*NetInterface
ip4AddrAllocator *Ip4AddressAllocator
testIds map[string]string
cpuAllocator *CpuAllocatorT
cpuContexts []*CpuContext
cpuPerVpp int
}
func (s *HstSuite) SetupSuite() {
var err error
s.cpuAllocator, err = CpuAllocator()
if err != nil {
s.FailNow("failed to init cpu allocator: %v", err)
}
s.cpuPerVpp = *nConfiguredCpus
}
func (s *HstSuite) AllocateCpus() []int {
cpuCtx, err := s.cpuAllocator.Allocate(s.cpuPerVpp)
s.assertNil(err)
s.AddCpuContext(cpuCtx)
return cpuCtx.cpus
}
func (s *HstSuite) AddCpuContext(cpuCtx *CpuContext) {
s.cpuContexts = append(s.cpuContexts, cpuCtx)
}
func (s *HstSuite) TearDownSuite() {
s.unconfigureNetworkTopology()
}
func (s *HstSuite) TearDownTest() {
if *isPersistent {
return
}
for _, c := range s.cpuContexts {
c.Release()
}
s.resetContainers()
s.removeVolumes()
}
func (s *HstSuite) skipIfUnconfiguring() {
if *isUnconfiguring {
s.skip("skipping to unconfigure")
}
}
func (s *HstSuite) SetupTest() {
s.skipIfUnconfiguring()
s.setupVolumes()
s.setupContainers()
}
func (s *HstSuite) setupVolumes() {
for _, volume := range s.volumes {
cmd := "docker volume create --name=" + volume
s.log(cmd)
exechelper.Run(cmd)
}
}
func (s *HstSuite) setupContainers() {
for _, container := range s.containers {
if !container.isOptional {
container.run()
}
}
}
func (s *HstSuite) hstFail() {
s.T().FailNow()
}
func (s *HstSuite) assertNil(object interface{}, msgAndArgs ...interface{}) {
if !assert.Nil(s.T(), object, msgAndArgs...) {
s.hstFail()
}
}
func (s *HstSuite) assertNotNil(object interface{}, msgAndArgs ...interface{}) {
if !assert.NotNil(s.T(), object, msgAndArgs...) {
s.hstFail()
}
}
func (s *HstSuite) assertEqual(expected, actual interface{}, msgAndArgs ...interface{}) {
if !assert.Equal(s.T(), expected, actual, msgAndArgs...) {
s.hstFail()
}
}
func (s *HstSuite) assertNotEqual(expected, actual interface{}, msgAndArgs ...interface{}) {
if !assert.NotEqual(s.T(), expected, actual, msgAndArgs...) {
s.hstFail()
}
}
func (s *HstSuite) assertContains(testString, contains interface{}, msgAndArgs ...interface{}) {
if !assert.Contains(s.T(), testString, contains, msgAndArgs...) {
s.hstFail()
}
}
func (s *HstSuite) assertNotContains(testString, contains interface{}, msgAndArgs ...interface{}) {
if !assert.NotContains(s.T(), testString, contains, msgAndArgs...) {
s.hstFail()
}
}
func (s *HstSuite) assertNotEmpty(object interface{}, msgAndArgs ...interface{}) {
if !assert.NotEmpty(s.T(), object, msgAndArgs...) {
s.hstFail()
}
}
func (s *HstSuite) log(args ...any) {
if *isVerbose {
s.T().Helper()
s.T().Log(args...)
}
}
func (s *HstSuite) skip(args ...any) {
s.log(args...)
s.T().SkipNow()
}
func (s *HstSuite) SkipIfMultiWorker(args ...any) {
if *nConfiguredCpus > 1 {
s.skip("test case not supported with multiple vpp workers")
}
}
func (s *HstSuite) resetContainers() {
for _, container := range s.containers {
container.stop()
}
}
func (s *HstSuite) removeVolumes() {
for _, volumeName := range s.volumes {
cmd := "docker volume rm " + volumeName
exechelper.Run(cmd)
os.RemoveAll(volumeName)
}
}
func (s *HstSuite) getContainerByName(name string) *Container {
return s.containers[name]
}
/*
* Create a copy and return its address, so that individial tests which call this
* are not able to modify the original container and affect other tests by doing that
*/
func (s *HstSuite) getTransientContainerByName(name string) *Container {
containerCopy := *s.containers[name]
return &containerCopy
}
func (s *HstSuite) loadContainerTopology(topologyName string) {
data, err := ioutil.ReadFile(containerTopologyDir + topologyName + ".yaml")
if err != nil {
s.T().Fatalf("read error: %v", err)
}
var yamlTopo YamlTopology
err = yaml.Unmarshal(data, &yamlTopo)
if err != nil {
s.T().Fatalf("unmarshal error: %v", err)
}
for _, elem := range yamlTopo.Volumes {
volumeMap := elem["volume"].(VolumeConfig)
hostDir := volumeMap["host-dir"].(string)
s.volumes = append(s.volumes, hostDir)
}
s.containers = make(map[string]*Container)
for _, elem := range yamlTopo.Containers {
newContainer, err := newContainer(elem)
newContainer.suite = s
if err != nil {
s.T().Fatalf("container config error: %v", err)
}
s.containers[newContainer.name] = newContainer
}
}
func (s *HstSuite) loadNetworkTopology(topologyName string) {
data, err := ioutil.ReadFile(networkTopologyDir + topologyName + ".yaml")
if err != nil {
s.T().Fatalf("read error: %v", err)
}
var yamlTopo YamlTopology
err = yaml.Unmarshal(data, &yamlTopo)
if err != nil {
s.T().Fatalf("unmarshal error: %v", err)
}
s.ip4AddrAllocator = NewIp4AddressAllocator()
s.netInterfaces = make(map[string]*NetInterface)
for _, elem := range yamlTopo.Devices {
switch elem["type"].(string) {
case NetNs:
{
if namespace, err := newNetNamespace(elem); err == nil {
s.netConfigs = append(s.netConfigs, &namespace)
} else {
s.T().Fatalf("network config error: %v", err)
}
}
case Veth, Tap:
{
if netIf, err := newNetworkInterface(elem, s.ip4AddrAllocator); err == nil {
s.netConfigs = append(s.netConfigs, netIf)
s.netInterfaces[netIf.Name()] = netIf
} else {
s.T().Fatalf("network config error: %v", err)
}
}
case Bridge:
{
if bridge, err := newBridge(elem); err == nil {
s.netConfigs = append(s.netConfigs, &bridge)
} else {
s.T().Fatalf("network config error: %v", err)
}
}
}
}
}
func (s *HstSuite) configureNetworkTopology(topologyName string) {
s.loadNetworkTopology(topologyName)
if *isUnconfiguring {
return
}
for _, nc := range s.netConfigs {
if err := nc.configure(); err != nil {
s.T().Fatalf("network config error: %v", err)
}
}
}
func (s *HstSuite) unconfigureNetworkTopology() {
if *isPersistent {
return
}
for _, nc := range s.netConfigs {
nc.unconfigure()
}
}
func (s *HstSuite) getTestId() string {
testName := s.T().Name()
if s.testIds == nil {
s.testIds = map[string]string{}
}
if _, ok := s.testIds[testName]; !ok {
s.testIds[testName] = time.Now().Format("2006-01-02_15-04-05")
}
return s.testIds[testName]
}
|
