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moby--moby/libnetwork/sandbox_test.go

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package libnetwork
import (
"fmt"
"testing"
"github.com/docker/libnetwork/config"
"github.com/docker/libnetwork/netlabel"
"github.com/docker/libnetwork/options"
"github.com/docker/libnetwork/osl"
"github.com/docker/libnetwork/testutils"
)
func getTestEnv(t *testing.T, numNetworks int) (NetworkController, []Network) {
netType := "bridge"
option := options.Generic{
"EnableIPForwarding": true,
}
genericOption := make(map[string]interface{})
genericOption[netlabel.GenericData] = option
cfgOptions, err := OptionBoltdbWithRandomDBFile()
if err != nil {
t.Fatal(err)
}
c, err := New(append(cfgOptions, config.OptionDriverConfig(netType, genericOption))...)
if err != nil {
t.Fatal(err)
}
if numNetworks == 0 {
return c, nil
}
nwList := make([]Network, 0, numNetworks)
for i := 0; i < numNetworks; i++ {
name := fmt.Sprintf("test_nw_%d", i)
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": name,
},
}
n, err := c.NewNetwork(netType, name, "", NetworkOptionGeneric(netOption))
if err != nil {
t.Fatal(err)
}
nwList = append(nwList, n)
}
return c, nwList
}
func TestSandboxAddEmpty(t *testing.T) {
c, _ := getTestEnv(t, 0)
ctrlr := c.(*controller)
sbx, err := ctrlr.NewSandbox("sandbox0")
if err != nil {
t.Fatal(err)
}
if err := sbx.Delete(); err != nil {
t.Fatal(err)
}
if len(ctrlr.sandboxes) != 0 {
t.Fatalf("controller sandboxes is not empty. len = %d", len(ctrlr.sandboxes))
}
osl.GC()
}
func TestSandboxAddMultiPrio(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
c, nws := getTestEnv(t, 3)
ctrlr := c.(*controller)
sbx, err := ctrlr.NewSandbox("sandbox1")
if err != nil {
t.Fatal(err)
}
sid := sbx.ID()
ep1, err := nws[0].CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
ep2, err := nws[1].CreateEndpoint("ep2")
if err != nil {
t.Fatal(err)
}
ep3, err := nws[2].CreateEndpoint("ep3")
if err != nil {
t.Fatal(err)
}
if err := ep1.Join(sbx, JoinOptionPriority(ep1, 1)); err != nil {
t.Fatal(err)
}
if err := ep2.Join(sbx, JoinOptionPriority(ep2, 2)); err != nil {
t.Fatal(err)
}
if err := ep3.Join(sbx, JoinOptionPriority(ep3, 3)); err != nil {
t.Fatal(err)
}
if ctrlr.sandboxes[sid].endpoints[0].ID() != ep3.ID() {
t.Fatal("Expected ep3 to be at the top of the heap. But did not find ep3 at the top of the heap")
}
if len(sbx.Endpoints()) != 3 {
t.Fatal("Expected 3 endpoints to be connected to the sandbox.")
}
if err := ep3.Leave(sbx); err != nil {
t.Fatal(err)
}
if ctrlr.sandboxes[sid].endpoints[0].ID() != ep2.ID() {
t.Fatal("Expected ep2 to be at the top of the heap after removing ep3. But did not find ep2 at the top of the heap")
}
if err := ep2.Leave(sbx); err != nil {
t.Fatal(err)
}
if ctrlr.sandboxes[sid].endpoints[0].ID() != ep1.ID() {
t.Fatal("Expected ep1 to be at the top of the heap after removing ep2. But did not find ep1 at the top of the heap")
}
// Re-add ep3 back
if err := ep3.Join(sbx, JoinOptionPriority(ep3, 3)); err != nil {
t.Fatal(err)
}
if ctrlr.sandboxes[sid].endpoints[0].ID() != ep3.ID() {
t.Fatal("Expected ep3 to be at the top of the heap after adding ep3 back. But did not find ep3 at the top of the heap")
}
if err := sbx.Delete(); err != nil {
t.Fatal(err)
}
if len(ctrlr.sandboxes) != 0 {
t.Fatalf("controller sandboxes is not empty. len = %d", len(ctrlr.sandboxes))
}
osl.GC()
}
func TestSandboxAddSamePrio(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
c, nws := getTestEnv(t, 2)
ctrlr := c.(*controller)
sbx, err := ctrlr.NewSandbox("sandbox1")
if err != nil {
t.Fatal(err)
}
sid := sbx.ID()
ep1, err := nws[0].CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
ep2, err := nws[1].CreateEndpoint("ep2")
if err != nil {
t.Fatal(err)
}
if err := ep1.Join(sbx); err != nil {
t.Fatal(err)
}
if err := ep2.Join(sbx); err != nil {
t.Fatal(err)
}
if ctrlr.sandboxes[sid].endpoints[0].ID() != ep1.ID() {
t.Fatal("Expected ep1 to be at the top of the heap. But did not find ep1 at the top of the heap")
}
if err := ep1.Leave(sbx); err != nil {
t.Fatal(err)
}
if ctrlr.sandboxes[sid].endpoints[0].ID() != ep2.ID() {
t.Fatal("Expected ep2 to be at the top of the heap after removing ep3. But did not find ep2 at the top of the heap")
}
if err := ep2.Leave(sbx); err != nil {
t.Fatal(err)
}
if err := sbx.Delete(); err != nil {
t.Fatal(err)
}
if len(ctrlr.sandboxes) != 0 {
t.Fatalf("controller containers is not empty. len = %d", len(ctrlr.sandboxes))
}
osl.GC()
}