8 "github.com/edwarnicke/exechelper"
9 "github.com/stretchr/testify/assert"
10 "github.com/stretchr/testify/suite"
15 defaultNamespaceName string = "default"
18 func IsPersistent() bool {
19 return os.Getenv("HST_PERSIST") == "1"
22 func IsVerbose() bool {
23 return os.Getenv("HST_VERBOSE") == "1"
26 type HstSuite struct {
29 containers map[string]*Container
31 netConfigs []NetConfig
32 netInterfaces map[string]NetInterface
36 func (s *HstSuite) TearDownSuite() {
37 if s.teardownSuite != nil {
38 s.teardownSuite() // TODO remove this after config moved to SetupTest() for each suite
41 s.unconfigureNetworkTopology()
44 func (s *HstSuite) TearDownTest() {
52 func (s *HstSuite) SetupTest() {
57 func (s *HstSuite) SetupVolumes() {
58 for _, volume := range s.volumes {
59 cmd := "docker volume create --name=" + volume
65 func (s *HstSuite) SetupContainers() {
66 for _, container := range s.containers {
67 if container.isOptional == false {
73 func (s *HstSuite) hstFail() {
77 func (s *HstSuite) assertNil(object interface{}, msgAndArgs ...interface{}) {
78 if !assert.Nil(s.T(), object, msgAndArgs...) {
83 func (s *HstSuite) assertNotNil(object interface{}, msgAndArgs ...interface{}) {
84 if !assert.NotNil(s.T(), object, msgAndArgs...) {
89 func (s *HstSuite) assertEqual(expected, actual interface{}, msgAndArgs ...interface{}) {
90 if !assert.Equal(s.T(), expected, actual, msgAndArgs...) {
95 func (s *HstSuite) assertNotEqual(expected, actual interface{}, msgAndArgs ...interface{}) {
96 if !assert.NotEqual(s.T(), expected, actual, msgAndArgs...) {
101 func (s *HstSuite) assertContains(testString, contains interface{}, msgAndArgs ...interface{}) {
102 if !assert.Contains(s.T(), testString, contains, msgAndArgs...) {
107 func (s *HstSuite) assertNotContains(testString, contains interface{}, msgAndArgs ...interface{}) {
108 if !assert.NotContains(s.T(), testString, contains, msgAndArgs...) {
113 func (s *HstSuite) log(args ...any) {
119 func (s *HstSuite) skip(args ...any) {
124 func (s *HstSuite) ResetContainers() {
125 for _, container := range s.containers {
130 func (s *HstSuite) RemoveVolumes() {
131 for _, volumeName := range s.volumes {
132 cmd := "docker volume rm " + volumeName
134 os.RemoveAll(volumeName)
138 func (s *HstSuite) getContainerByName(name string) *Container {
139 return s.containers[name]
143 * Create a copy and return its address, so that individial tests which call this
144 * are not able to modify the original container and affect other tests by doing that
146 func (s *HstSuite) getTransientContainerByName(name string) *Container {
147 containerCopy := *s.containers[name]
148 return &containerCopy
151 func (s *HstSuite) loadContainerTopology(topologyName string) {
152 data, err := ioutil.ReadFile(ContainerTopologyDir + topologyName + ".yaml")
154 s.T().Fatalf("read error: %v", err)
156 var yamlTopo YamlTopology
157 err = yaml.Unmarshal(data, &yamlTopo)
159 s.T().Fatalf("unmarshal error: %v", err)
162 for _, elem := range yamlTopo.Volumes {
163 volumeMap := elem["volume"].(VolumeConfig)
164 hostDir := volumeMap["host-dir"].(string)
165 s.volumes = append(s.volumes, hostDir)
168 s.containers = make(map[string]*Container)
169 for _, elem := range yamlTopo.Containers {
170 newContainer, err := NewContainer(elem)
171 newContainer.suite = s
173 s.T().Fatalf("container config error: %v", err)
175 s.log(newContainer.getRunCommand())
176 s.containers[newContainer.name] = newContainer
180 func (s *HstSuite) loadNetworkTopology(topologyName string) {
181 data, err := ioutil.ReadFile(NetworkTopologyDir + topologyName + ".yaml")
183 s.T().Fatalf("read error: %v", err)
185 var yamlTopo YamlTopology
186 err = yaml.Unmarshal(data, &yamlTopo)
188 s.T().Fatalf("unmarshal error: %v", err)
191 s.addresser = NewAddresser(s)
192 s.netInterfaces = make(map[string]NetInterface)
193 for _, elem := range yamlTopo.Devices {
194 switch elem["type"].(string) {
197 if namespace, err := NewNetNamespace(elem); err == nil {
198 s.netConfigs = append(s.netConfigs, &namespace)
200 s.T().Fatalf("network config error: %v", err)
205 if veth, err := NewVeth(elem, s.addresser); err == nil {
206 s.netConfigs = append(s.netConfigs, &veth)
207 s.netInterfaces[veth.Name()] = &veth
209 s.T().Fatalf("network config error: %v", err)
214 if tap, err := NewTap(elem, s.addresser); err == nil {
215 s.netConfigs = append(s.netConfigs, &tap)
216 s.netInterfaces[tap.Name()] = &tap
218 s.T().Fatalf("network config error: %v", err)
223 if bridge, err := NewBridge(elem); err == nil {
224 s.netConfigs = append(s.netConfigs, &bridge)
226 s.T().Fatalf("network config error: %v", err)
233 func (s *HstSuite) configureNetworkTopology(topologyName string) {
234 s.loadNetworkTopology(topologyName)
236 for _, nc := range s.netConfigs {
237 if err := nc.Configure(); err != nil {
238 s.T().Fatalf("network config error: %v", err)
243 func (s *HstSuite) unconfigureNetworkTopology() {
247 for _, nc := range s.netConfigs {
252 type NamespaceAddresses struct {
254 numberOfAddresses int
257 type Addresser struct {
258 namespaces []*NamespaceAddresses
262 func (a *Addresser) AddNamespace(name string) {
263 var newNamespace = &NamespaceAddresses{
265 numberOfAddresses: 0,
267 a.namespaces = append(a.namespaces, newNamespace)
270 func (a *Addresser) NewIp4Address() (string, error) {
271 return a.NewIp4AddressWithNamespace(defaultNamespaceName)
274 func (a *Addresser) NewIp4AddressWithNamespace(namespace string) (string, error) {
275 for i, val := range a.namespaces {
276 if val.namespace != namespace {
279 if val.numberOfAddresses == 255 {
280 return "", fmt.Errorf("no available IPv4 addresses")
282 address := fmt.Sprintf("10.10.%v.%v/24", i, val.numberOfAddresses+1)
283 val.numberOfAddresses++
286 a.AddNamespace(namespace)
287 return a.NewIp4AddressWithNamespace(namespace)
290 func NewAddresser(suite *HstSuite) *Addresser {
291 var addresser = new(Addresser)
292 addresser.suite = suite
293 addresser.AddNamespace(defaultNamespaceName)