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local_test.go
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local_test.go
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package nova_test
import (
"bytes"
"log"
"net/http"
"net/http/httptest"
"strings"
gc "gopkg.in/check.v1"
"github.com/go-goose/goose/v5/client"
"github.com/go-goose/goose/v5/errors"
goosehttp "github.com/go-goose/goose/v5/http"
"github.com/go-goose/goose/v5/identity"
"github.com/go-goose/goose/v5/nova"
"github.com/go-goose/goose/v5/testservices"
"github.com/go-goose/goose/v5/testservices/hook"
"github.com/go-goose/goose/v5/testservices/identityservice"
"github.com/go-goose/goose/v5/testservices/openstackservice"
)
func registerLocalTests() {
// Test using numeric ids.
gc.Suite(&localLiveSuite{
useNumericIds: true,
})
// Test using string ids.
gc.Suite(&localLiveSuite{
useNumericIds: false,
})
}
// localLiveSuite runs tests from LiveTests using a fake
// nova server that runs within the test process itself.
type localLiveSuite struct {
LiveTests
useNumericIds bool
// The following attributes are for using testing doubles.
Server *httptest.Server
Mux *http.ServeMux
oldHandler http.Handler
openstack *openstackservice.Openstack
retryErrorCount int // The current retry error count.
retryErrorCountToSend int // The number of retry errors to send.
noMoreIPs bool // If true, addFloatingIP will return ErrNoMoreFloatingIPs
ipLimitExceeded bool // If true, addFloatingIP will return ErrIPLimitExceeded
badTokens int // If > 0, authHook will set an invalid token in the AccessResponse data.
}
func (s *localLiveSuite) SetUpSuite(c *gc.C) {
var idInfo string
if s.useNumericIds {
idInfo = "with numeric ids"
} else {
idInfo = "with string ids"
}
c.Logf("Using identity and nova service test doubles %s", idInfo)
nova.UseNumericIds(s.useNumericIds)
// Set up an Openstack service.
s.cred = &identity.Credentials{
User: "fred",
Secrets: "secret",
Region: "some region",
TenantName: "tenant",
}
var logMsg []string
s.openstack, logMsg = openstackservice.NewNoSwift(s.cred, identity.AuthUserPass, false)
for _, msg := range logMsg {
c.Logf(msg)
}
s.openstack.SetupHTTP(nil)
s.testFlavor = "m1.small"
s.testImageId = "1"
s.testNetwork = "1" // per neutronmodel setup
s.LiveTests.SetUpSuite(c)
}
func (s *localLiveSuite) TearDownSuite(c *gc.C) {
s.LiveTests.TearDownSuite(c)
s.openstack.Stop()
}
func (s *localLiveSuite) SetUpTest(c *gc.C) {
s.retryErrorCount = 0
s.LiveTests.SetUpTest(c)
}
func (s *localLiveSuite) TearDownTest(c *gc.C) {
s.LiveTests.TearDownTest(c)
}
// Additional tests to be run against the service double only go here.
func (s *localLiveSuite) retryAfterHook(sc hook.ServiceControl, err error) hook.ControlProcessor {
return func(sc hook.ServiceControl, args ...interface{}) error {
sendError := s.retryErrorCount < s.retryErrorCountToSend
if sendError {
s.retryErrorCount++
return err
}
return nil
}
}
func (s *localLiveSuite) setupClient(c *gc.C, logger *log.Logger) *nova.Client {
client := client.NewClient(s.cred, identity.AuthUserPass, logger)
client.SetRequiredServiceTypes([]string{"compute"})
return nova.New(client)
}
func (s *localLiveSuite) setupRetryErrorTest(c *gc.C, logger *log.Logger) (*nova.Client, *nova.SecurityGroup) {
novaClient := s.setupClient(c, logger)
// Delete the artifact if it already exists.
testGroup, err := novaClient.SecurityGroupByName("test_group")
if err != nil {
c.Assert(errors.IsNotFound(err), gc.Equals, true)
} else {
novaClient.DeleteSecurityGroup(testGroup.Id)
c.Assert(err, gc.IsNil)
}
testGroup, err = novaClient.CreateSecurityGroup("test_group", "test")
c.Assert(err, gc.IsNil)
return novaClient, testGroup
}
func (s *localLiveSuite) makeRateLimitRetryTests() []error {
return []error{
testservices.TooManyRequestsError,
testservices.ServiceUnavailRateLimitError,
testservices.ForbiddenRateLimitError,
testservices.RateLimitExceededError,
}
}
// TestRateLimitRetry checks that when we make too many requests and receive
// a Retry-After response, the retry occurs and the request ultimately succeeds.
func (s *localLiveSuite) TestRateLimitRetry(c *gc.C) {
tests := s.makeRateLimitRetryTests()
testCount := len(tests)
defer s.openstack.Nova.RegisterControlPoint("removeSecurityGroup", nil)
for i, t := range tests {
c.Logf("#%d of %d, %q", i+1, testCount, t)
// Capture the logged output so we can check for retry messages.
var logout bytes.Buffer
logger := log.New(&logout, "", log.LstdFlags)
novaClient, testGroup := s.setupRetryErrorTest(c, logger)
s.retryErrorCount = 0
s.retryErrorCountToSend = goosehttp.MaxSendAttempts - 1
s.openstack.Nova.RegisterControlPoint("removeSecurityGroup", s.retryAfterHook(s.openstack.Nova, t))
err := novaClient.DeleteSecurityGroup(testGroup.Id)
c.Assert(err, gc.IsNil)
// Ensure we got at least one retry message.
output := logout.String()
c.Assert(strings.Contains(output, "Too many requests, retrying in"), gc.Equals, true)
}
}
// TestRateLimitRetryExceeded checks that an error is raised if too many
// retry responses are received from the server.
func (s *localLiveSuite) TestRateLimitRetryExceeded(c *gc.C) {
tests := s.makeRateLimitRetryTests()
testCount := len(tests)
defer s.openstack.Nova.RegisterControlPoint("removeSecurityGroup", nil)
for i, t := range tests {
c.Logf("#%d of %d, %q", i+1, testCount, t)
novaClient, testGroup := s.setupRetryErrorTest(c, nil)
s.retryErrorCount = 0
s.retryErrorCountToSend = goosehttp.MaxSendAttempts
s.openstack.Nova.RegisterControlPoint("removeSecurityGroup", s.retryAfterHook(s.openstack.Nova, t))
err := novaClient.DeleteSecurityGroup(testGroup.Id)
c.Assert(err, gc.Not(gc.IsNil))
c.Assert(err.Error(), gc.Matches, "(.|\n)*Maximum number of attempts.*")
}
}
func (s *localLiveSuite) addFloatingIPHook(sc hook.ServiceControl) hook.ControlProcessor {
return func(sc hook.ServiceControl, args ...interface{}) error {
if s.noMoreIPs {
return testservices.NoMoreFloatingIPs
} else if s.ipLimitExceeded {
return testservices.IPLimitExceeded
}
return nil
}
}
func (s *localLiveSuite) TestAddFloatingIPErrors(c *gc.C) {
novaClient := s.setupClient(c, nil)
fips, err := novaClient.ListFloatingIPs()
c.Assert(err, gc.IsNil)
c.Assert(fips, gc.HasLen, 0)
cleanup := s.openstack.Nova.RegisterControlPoint("addFloatingIP", s.addFloatingIPHook(s.openstack.Nova))
defer cleanup()
s.noMoreIPs = true
fip, err := novaClient.AllocateFloatingIP()
c.Assert(err, gc.ErrorMatches, "(.|\n)*Zero floating ips available.*")
c.Assert(fip, gc.IsNil)
s.noMoreIPs = false
s.ipLimitExceeded = true
fip, err = novaClient.AllocateFloatingIP()
c.Assert(err, gc.ErrorMatches, "(.|\n)*Maximum number of floating ips exceeded.*")
c.Assert(fip, gc.IsNil)
s.ipLimitExceeded = false
fip, err = novaClient.AllocateFloatingIP()
c.Assert(err, gc.IsNil)
c.Assert(fip.IP, gc.Not(gc.Equals), "")
}
func (s *localLiveSuite) authHook(sc hook.ServiceControl) hook.ControlProcessor {
return func(sc hook.ServiceControl, args ...interface{}) error {
res := args[0].(*identityservice.AccessResponse)
if s.badTokens > 0 {
res.Access.Token.Id = "xxx"
s.badTokens--
}
return nil
}
}
func (s *localLiveSuite) TestReauthenticate(c *gc.C) {
novaClient := s.setupClient(c, nil)
up := s.openstack.Identity.(*identityservice.UserPass)
cleanup := up.RegisterControlPoint("authorisation", s.authHook(up))
defer cleanup()
// An invalid token is returned after the first authentication step, resulting in the ListServers call
// returning a 401. Subsequent authentication calls return the correct token so the auth retry does it's job.
s.badTokens = 1
_, err := novaClient.ListServers(nil)
c.Assert(err, gc.IsNil)
}
func (s *localLiveSuite) TestReauthenticateFailure(c *gc.C) {
novaClient := s.setupClient(c, nil)
up := s.openstack.Identity.(*identityservice.UserPass)
cleanup := up.RegisterControlPoint("authorisation", s.authHook(up))
defer cleanup()
// If the re-authentication fails, ensure an Unauthorised error is returned.
s.badTokens = 2
_, err := novaClient.ListServers(nil)
c.Assert(errors.IsUnauthorised(err), gc.Equals, true)
}
func (s *localLiveSuite) TestListAvailabilityZonesUnimplemented(c *gc.C) {
// When the test service has no availability zones registered,
// the /os-availability-zone API will return 404. We swallow
// that error.
s.openstack.Nova.SetAvailabilityZones()
listedZones, err := s.nova.ListAvailabilityZones()
c.Assert(err, gc.ErrorMatches, "the server does not support availability zones(.|\n)*")
c.Assert(listedZones, gc.HasLen, 0)
}
func (s *localLiveSuite) setAvailabilityZones() []nova.AvailabilityZone {
zones := []nova.AvailabilityZone{
{Name: "az1"},
{
Name: "az2", State: nova.AvailabilityZoneState{Available: true},
},
}
s.openstack.Nova.SetAvailabilityZones(zones...)
return zones
}
func (s *localLiveSuite) TestListAvailabilityZones(c *gc.C) {
zones := s.setAvailabilityZones()
listedZones, err := s.nova.ListAvailabilityZones()
c.Assert(err, gc.IsNil)
c.Assert(listedZones, gc.DeepEquals, zones)
}
func (s *localLiveSuite) TestRunServerAvailabilityZone(c *gc.C) {
s.setAvailabilityZones()
inst, err := s.runServerAvailabilityZone("az2")
c.Assert(err, gc.IsNil)
defer s.nova.DeleteServer(inst.Id)
server, err := s.nova.GetServer(inst.Id)
c.Assert(err, gc.IsNil)
c.Assert(server.AvailabilityZone, gc.Equals, "az2")
}
func (s *localLiveSuite) TestRunServerAvailabilityZoneNotAvailable(c *gc.C) {
s.setAvailabilityZones()
// az1 is known, but not currently available.
_, err := s.runServerAvailabilityZone("az1")
c.Assert(err, gc.ErrorMatches, "(.|\n)*The requested availability zone is not available(.|\n)*")
}
func (s *localLiveSuite) TestVolumeAttachments(c *gc.C) {
instance, err := s.createInstance("test-instance")
c.Assert(err, gc.IsNil)
// Test attaching a volume.
volAttachment, err := s.nova.AttachVolume(instance.Id, "volume-id", "/dev/sda1")
c.Assert(err, gc.IsNil)
c.Check(volAttachment.ServerId, gc.Equals, instance.Id)
c.Check(volAttachment.VolumeId, gc.Equals, "volume-id")
// Test listing volumes.
volAttachments, err := s.nova.ListVolumeAttachments(instance.Id)
c.Assert(err, gc.IsNil)
c.Assert(volAttachments, gc.HasLen, 1)
c.Check(volAttachments[0].ServerId, gc.Equals, instance.Id)
c.Check(volAttachments[0].VolumeId, gc.Equals, "volume-id")
// Test detaching volumes.
err = s.nova.DetachVolume(instance.Id, volAttachment.Id)
c.Assert(err, gc.IsNil)
volAttachments, err = s.nova.ListVolumeAttachments(instance.Id)
c.Assert(err, gc.IsNil)
c.Assert(volAttachments, gc.HasLen, 0)
// Test detaching unattached volume.
err = s.nova.DetachVolume(instance.Id, volAttachment.Id)
c.Assert(err, gc.NotNil)
c.Assert(errors.IsNotFound(err), gc.Equals, true)
}