Files
virtual-kubelet/vendor/github.com/vishvananda/netlink/class_test.go
Loc Nguyen 513cebe7b7 VMware vSphere Integrated Containers provider (#206)
* Add Virtual Kubelet provider for VIC

Initial virtual kubelet provider for VMware VIC.  This provider currently
handles creating and starting of a pod VM via the VIC portlayer and persona
server.  Image store handling via the VIC persona server.  This provider
currently requires the feature/wolfpack branch of VIC.

* Added pod stop and delete.  Also added node capacity.

Added the ability to stop and delete pod VMs via VIC.  Also retrieve
node capacity information from the VCH.

* Cleanup and readme file

Some file clean up and added a Readme.md markdown file for the VIC
provider.

* Cleaned up errors, added function comments, moved operation code

1. Cleaned up error handling.  Set standard for creating errors.
2. Added method prototype comments for all interface functions.
3. Moved PodCreator, PodStarter, PodStopper, and PodDeleter to a new folder.

* Add mocking code and unit tests for podcache, podcreator, and podstarter

Used the unit test framework used in VIC to handle assertions in the provider's
unit test.  Mocking code generated using OSS project mockery, which is compatible
with the testify assertion framework.

* Vendored packages for the VIC provider

Requires feature/wolfpack branch of VIC and a few specific commit sha of
projects used within VIC.

* Implementation of POD Stopper and Deleter unit tests (#4)

* Updated files for initial PR
2018-06-04 15:41:32 -07:00

407 lines
8.7 KiB
Go

package netlink
import (
"testing"
)
func TestClassAddDel(t *testing.T) {
tearDown := setUpNetlinkTest(t)
defer tearDown()
if err := LinkAdd(&Ifb{LinkAttrs{Name: "foo"}}); err != nil {
t.Fatal(err)
}
if err := LinkAdd(&Ifb{LinkAttrs{Name: "bar"}}); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if err := LinkSetUp(link); err != nil {
t.Fatal(err)
}
attrs := QdiscAttrs{
LinkIndex: link.Attrs().Index,
Handle: MakeHandle(0xffff, 0),
Parent: HANDLE_ROOT,
}
qdisc := NewHtb(attrs)
if err := QdiscAdd(qdisc); err != nil {
t.Fatal(err)
}
qdiscs, err := QdiscList(link)
if err != nil {
t.Fatal(err)
}
if len(qdiscs) != 1 {
t.Fatal("Failed to add qdisc")
}
_, ok := qdiscs[0].(*Htb)
if !ok {
t.Fatal("Qdisc is the wrong type")
}
classattrs := ClassAttrs{
LinkIndex: link.Attrs().Index,
Parent: MakeHandle(0xffff, 0),
Handle: MakeHandle(0xffff, 2),
}
htbclassattrs := HtbClassAttrs{
Rate: 1234000,
Cbuffer: 1690,
}
class := NewHtbClass(classattrs, htbclassattrs)
if err := ClassAdd(class); err != nil {
t.Fatal(err)
}
classes, err := ClassList(link, MakeHandle(0xffff, 0))
if err != nil {
t.Fatal(err)
}
if len(classes) != 1 {
t.Fatal("Failed to add class")
}
htb, ok := classes[0].(*HtbClass)
if !ok {
t.Fatal("Class is the wrong type")
}
if htb.Rate != class.Rate {
t.Fatal("Rate doesn't match")
}
if htb.Ceil != class.Ceil {
t.Fatal("Ceil doesn't match")
}
if htb.Buffer != class.Buffer {
t.Fatal("Buffer doesn't match")
}
if htb.Cbuffer != class.Cbuffer {
t.Fatal("Cbuffer doesn't match")
}
qattrs := QdiscAttrs{
LinkIndex: link.Attrs().Index,
Handle: MakeHandle(0x2, 0),
Parent: MakeHandle(0xffff, 2),
}
nattrs := NetemQdiscAttrs{
Latency: 20000,
Loss: 23.4,
Duplicate: 14.3,
LossCorr: 8.34,
Jitter: 1000,
DelayCorr: 12.3,
ReorderProb: 23.4,
CorruptProb: 10.0,
CorruptCorr: 10,
}
qdiscnetem := NewNetem(qattrs, nattrs)
if err := QdiscAdd(qdiscnetem); err != nil {
t.Fatal(err)
}
qdiscs, err = QdiscList(link)
if err != nil {
t.Fatal(err)
}
if len(qdiscs) != 2 {
t.Fatal("Failed to add qdisc")
}
_, ok = qdiscs[0].(*Htb)
if !ok {
t.Fatal("Qdisc is the wrong type")
}
netem, ok := qdiscs[1].(*Netem)
if !ok {
t.Fatal("Qdisc is the wrong type")
}
// Compare the record we got from the list with the one we created
if netem.Loss != qdiscnetem.Loss {
t.Fatal("Loss does not match")
}
if netem.Latency != qdiscnetem.Latency {
t.Fatal("Latency does not match")
}
if netem.CorruptProb != qdiscnetem.CorruptProb {
t.Fatal("CorruptProb does not match")
}
if netem.Jitter != qdiscnetem.Jitter {
t.Fatal("Jitter does not match")
}
if netem.LossCorr != qdiscnetem.LossCorr {
t.Fatal("Loss does not match")
}
if netem.DuplicateCorr != qdiscnetem.DuplicateCorr {
t.Fatal("DuplicateCorr does not match")
}
// Deletion
if err := ClassDel(class); err != nil {
t.Fatal(err)
}
classes, err = ClassList(link, MakeHandle(0xffff, 0))
if err != nil {
t.Fatal(err)
}
if len(classes) != 0 {
t.Fatal("Failed to remove class")
}
if err := QdiscDel(qdisc); err != nil {
t.Fatal(err)
}
qdiscs, err = QdiscList(link)
if err != nil {
t.Fatal(err)
}
if len(qdiscs) != 0 {
t.Fatal("Failed to remove qdisc")
}
}
func TestHtbClassAddHtbClassChangeDel(t *testing.T) {
/**
This test first set up a interface ans set up a Htb qdisc
A HTB class is attach to it and a Netem qdisc is attached to that class
Next, we test changing the HTB class in place and confirming the Netem is
still attached. We also check that invoting ClassChange with a non-existing
class will fail.
Finally, we test ClassReplace. We confirm it correctly behave like
ClassChange when the parent/handle pair exists and that it will create a
new class if the handle is modified.
*/
tearDown := setUpNetlinkTest(t)
defer tearDown()
if err := LinkAdd(&Ifb{LinkAttrs{Name: "foo"}}); err != nil {
t.Fatal(err)
}
link, err := LinkByName("foo")
if err != nil {
t.Fatal(err)
}
if err := LinkSetUp(link); err != nil {
t.Fatal(err)
}
attrs := QdiscAttrs{
LinkIndex: link.Attrs().Index,
Handle: MakeHandle(0xffff, 0),
Parent: HANDLE_ROOT,
}
qdisc := NewHtb(attrs)
if err := QdiscAdd(qdisc); err != nil {
t.Fatal(err)
}
qdiscs, err := QdiscList(link)
if err != nil {
t.Fatal(err)
}
if len(qdiscs) != 1 {
t.Fatal("Failed to add qdisc")
}
_, ok := qdiscs[0].(*Htb)
if !ok {
t.Fatal("Qdisc is the wrong type")
}
classattrs := ClassAttrs{
LinkIndex: link.Attrs().Index,
Parent: MakeHandle(0xffff, 0),
Handle: MakeHandle(0xffff, 2),
}
htbclassattrs := HtbClassAttrs{
Rate: 1234000,
Cbuffer: 1690,
}
class := NewHtbClass(classattrs, htbclassattrs)
if err := ClassAdd(class); err != nil {
t.Fatal(err)
}
classes, err := ClassList(link, 0)
if err != nil {
t.Fatal(err)
}
if len(classes) != 1 {
t.Fatal("Failed to add class")
}
htb, ok := classes[0].(*HtbClass)
if !ok {
t.Fatal("Class is the wrong type")
}
qattrs := QdiscAttrs{
LinkIndex: link.Attrs().Index,
Handle: MakeHandle(0x2, 0),
Parent: MakeHandle(0xffff, 2),
}
nattrs := NetemQdiscAttrs{
Latency: 20000,
Loss: 23.4,
Duplicate: 14.3,
LossCorr: 8.34,
Jitter: 1000,
DelayCorr: 12.3,
ReorderProb: 23.4,
CorruptProb: 10.0,
CorruptCorr: 10,
}
qdiscnetem := NewNetem(qattrs, nattrs)
if err := QdiscAdd(qdiscnetem); err != nil {
t.Fatal(err)
}
qdiscs, err = QdiscList(link)
if err != nil {
t.Fatal(err)
}
if len(qdiscs) != 2 {
t.Fatal("Failed to add qdisc")
}
_, ok = qdiscs[1].(*Netem)
if !ok {
t.Fatal("Qdisc is the wrong type")
}
// Change
// For change to work, the handle and parent cannot be changed.
// First, test it fails if we change the Handle.
oldHandle := classattrs.Handle
classattrs.Handle = MakeHandle(0xffff, 3)
class = NewHtbClass(classattrs, htbclassattrs)
if err := ClassChange(class); err == nil {
t.Fatal("ClassChange should not work when using a different handle.")
}
// It should work with the same handle
classattrs.Handle = oldHandle
htbclassattrs.Rate = 4321000
class = NewHtbClass(classattrs, htbclassattrs)
if err := ClassChange(class); err != nil {
t.Fatal(err)
}
classes, err = ClassList(link, MakeHandle(0xffff, 0))
if err != nil {
t.Fatal(err)
}
if len(classes) != 1 {
t.Fatalf(
"1 class expected, %d found",
len(classes),
)
}
htb, ok = classes[0].(*HtbClass)
if !ok {
t.Fatal("Class is the wrong type")
}
// Verify that the rate value has changed.
if htb.Rate != class.Rate {
t.Fatal("Rate did not get changed while changing the class.")
}
// Check that we still have the netem child qdisc
qdiscs, err = QdiscList(link)
if err != nil {
t.Fatal(err)
}
if len(qdiscs) != 2 {
t.Fatalf("2 qdisc expected, %d found", len(qdiscs))
}
_, ok = qdiscs[0].(*Htb)
if !ok {
t.Fatal("Qdisc is the wrong type")
}
_, ok = qdiscs[1].(*Netem)
if !ok {
t.Fatal("Qdisc is the wrong type")
}
// Replace
// First replace by keeping the same handle, class will be changed.
// Then, replace by providing a new handle, n new class will be created.
// Replace acting as Change
class = NewHtbClass(classattrs, htbclassattrs)
if err := ClassReplace(class); err != nil {
t.Fatal("Failed to replace class that is existing.")
}
classes, err = ClassList(link, MakeHandle(0xffff, 0))
if err != nil {
t.Fatal(err)
}
if len(classes) != 1 {
t.Fatalf(
"1 class expected, %d found",
len(classes),
)
}
htb, ok = classes[0].(*HtbClass)
if !ok {
t.Fatal("Class is the wrong type")
}
// Verify that the rate value has changed.
if htb.Rate != class.Rate {
t.Fatal("Rate did not get changed while changing the class.")
}
// It should work with the same handle
classattrs.Handle = MakeHandle(0xffff, 3)
class = NewHtbClass(classattrs, htbclassattrs)
if err := ClassReplace(class); err != nil {
t.Fatal(err)
}
classes, err = ClassList(link, MakeHandle(0xffff, 0))
if err != nil {
t.Fatal(err)
}
if len(classes) != 2 {
t.Fatalf(
"2 classes expected, %d found",
len(classes),
)
}
htb, ok = classes[1].(*HtbClass)
if !ok {
t.Fatal("Class is the wrong type")
}
// Verify that the rate value has changed.
if htb.Rate != class.Rate {
t.Fatal("Rate did not get changed while changing the class.")
}
// Deletion
for _, class := range classes {
if err := ClassDel(class); err != nil {
t.Fatal(err)
}
}
classes, err = ClassList(link, MakeHandle(0xffff, 0))
if err != nil {
t.Fatal(err)
}
if len(classes) != 0 {
t.Fatal("Failed to remove class")
}
if err := QdiscDel(qdisc); err != nil {
t.Fatal(err)
}
qdiscs, err = QdiscList(link)
if err != nil {
t.Fatal(err)
}
if len(qdiscs) != 0 {
t.Fatal("Failed to remove qdisc")
}
}