// SetGlobalEnable is a convenience function for manipulating the GlobalConfig.
//
// It's meant to be called from admin handlers on your app to turn dscache
// functionality on or off in emergencies.
func SetGlobalEnable(c context.Context, memcacheEnabled bool) error {
// always go to the default namespace
c, err := info.Get(c).Namespace("")
if err != nil {
return err
}
return datastore.Get(c).RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
cfg := &GlobalConfig{Enable: true}
if err := ds.Get(cfg); err != nil && err != datastore.ErrNoSuchEntity {
return err
}
if cfg.Enable == memcacheEnabled {
return nil
}
cfg.Enable = memcacheEnabled
if memcacheEnabled {
// when going false -> true, wipe memcache.
if err := memcache.Get(c).Flush(); err != nil {
return err
}
}
return ds.Put(cfg)
}, nil)
}
func TestRaceNonConflictingPuts(t *testing.T) {
t.Parallel()
ds := datastore.Get(Use(context.Background()))
num := int32(0)
wg := sync.WaitGroup{}
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
defer wg.Done()
err := ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
return ds.Put(pmap(
"$kind", "Thing", Next,
"Value", 100))
}, nil)
if err != nil {
t.Fatal("error during transaction", err)
}
atomic.AddInt32(&num, 1)
}()
}
wg.Wait()
if num != 100 {
t.Fatal("expected 100 runs, got", num)
}
}
func TestRaceGetPut(t *testing.T) {
t.Parallel()
value := int32(0)
num := int32(0)
ds := datastore.Get(Use(context.Background()))
wg := sync.WaitGroup{}
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
defer wg.Done()
err := ds.RunInTransaction(func(c context.Context) error {
atomic.AddInt32(&num, 1)
ds := datastore.Get(c)
obj := pmap("$key", ds.MakeKey("Obj", 1))
if err := ds.Get(obj); err != nil && err != datastore.ErrNoSuchEntity {
t.Fatal("error get", err)
}
cur := int64(0)
if ps, ok := obj["Value"]; ok {
cur = ps[0].Value().(int64)
}
cur++
obj["Value"] = []datastore.Property{prop(cur)}
return ds.Put(obj)
}, &datastore.TransactionOptions{Attempts: 200})
if err != nil {
t.Fatal("error during transaction", err)
}
atomic.AddInt32(&value, 1)
}()
}
wg.Wait()
obj := pmap("$key", ds.MakeKey("Obj", 1))
if ds.Get(obj) != nil {
t.FailNow()
}
t.Logf("Ran %d inner functions", num)
if int64(value) != obj["Value"][0].Value().(int64) {
t.Fatalf("value wrong value %d v %d", value, obj["Value"][0].Value().(int64))
}
}
func registerVisitor(ctx context.Context) (int, error) {
counter := VisitorCounter{ID: "frontend"}
err := datastore.Get(ctx).RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
err := ds.Get(&counter)
if err != nil && err != datastore.ErrNoSuchEntity {
return err
}
counter.Count++
return ds.Put(&counter)
}, nil)
return counter.Count, err
}
func TestBrokenFeatures(t *testing.T) {
t.Parallel()
e := errors.New("default err")
Convey("BrokenFeatures", t, func() {
c := memory.Use(context.Background())
Convey("Can break ds", func() {
Convey("without a default", func() {
c, bf := FilterRDS(c, nil)
ds := datastore.Get(c)
vals := []datastore.PropertyMap{{
"$key": {datastore.MkPropertyNI(ds.NewKey("Wut", "", 1, nil))},
}}
Convey("by specifying an error", func() {
bf.BreakFeatures(e, "GetMulti", "PutMulti")
So(ds.GetMulti(vals), ShouldEqual, e)
Convey("and you can unbreak them as well", func() {
bf.UnbreakFeatures("GetMulti")
So(errors.SingleError(ds.GetMulti(vals)), ShouldEqual, datastore.ErrNoSuchEntity)
Convey("no broken features at all is a shortcut", func() {
bf.UnbreakFeatures("PutMulti")
So(errors.SingleError(ds.GetMulti(vals)), ShouldEqual, datastore.ErrNoSuchEntity)
})
})
})
Convey("Not specifying an error gets you a generic error", func() {
bf.BreakFeatures(nil, "GetMulti")
So(ds.GetMulti(vals).Error(), ShouldContainSubstring, `feature "GetMulti" is broken`)
})
})
Convey("with a default", func() {
c, bf := FilterRDS(c, e)
ds := datastore.Get(c)
vals := []datastore.PropertyMap{{
"$key": {datastore.MkPropertyNI(ds.NewKey("Wut", "", 1, nil))},
}}
bf.BreakFeatures(nil, "GetMulti")
So(ds.GetMulti(vals), ShouldEqual, e)
})
})
})
}
func TestDatastoreKinder(t *testing.T) {
t.Parallel()
Convey("Datastore keys", t, func() {
c := Use(context.Background())
ds := dsS.Get(c)
So(ds, ShouldNotBeNil)
Convey("implements DSNewKeyer", func() {
Convey("NewKey", func() {
key := ds.NewKey("nerd", "stringID", 0, nil)
So(key, ShouldNotBeNil)
So(key.Kind(), ShouldEqual, "nerd")
So(key.StringID(), ShouldEqual, "stringID")
So(key.IntID(), ShouldEqual, 0)
So(key.Parent(), ShouldBeNil)
So(key.AppID(), ShouldEqual, "dev~app")
So(key.Namespace(), ShouldEqual, "")
So(key.String(), ShouldEqual, "/nerd,stringID")
So(key.Incomplete(), ShouldBeFalse)
So(key.Valid(false, "dev~app", ""), ShouldBeTrue)
})
})
})
}
func TestDatastoreQueries(t *testing.T) {
Convey("Datastore Query suport", t, func() {
c := Use(context.Background())
ds := dsS.Get(c)
So(ds, ShouldNotBeNil)
Convey("can create good queries", func() {
q := ds.NewQuery("Foo").Filter("farnsworth >", 20).KeysOnly().Limit(10).Offset(39)
// normally you can only get cursors from inside of the memory
// implementation, so this construction is just for testing.
start := queryCursor(bjoin(
mkNum(2),
serialize.ToBytes(dsS.IndexColumn{Property: "farnsworth"}),
serialize.ToBytes(dsS.IndexColumn{Property: "__key__"}),
serialize.ToBytes(prop(200)),
serialize.ToBytes(prop(ds.NewKey("Foo", "id", 0, nil)))))
So(start.String(), ShouldEqual,
`gYAAZzFdTeeb3d9zOxsAAF-v221Xy32_AIGHyIgAAUc32-AFabMAAA==`)
end := queryCursor(bjoin(
mkNum(2),
serialize.ToBytes(dsS.IndexColumn{Property: "farnsworth"}),
serialize.ToBytes(dsS.IndexColumn{Property: "__key__"}),
serialize.ToBytes(prop(3000)),
serialize.ToBytes(prop(ds.NewKey("Foo", "zeta", 0, nil)))))
q = q.Start(start).End(end)
So(q, ShouldNotBeNil)
So(q.(*queryImpl).err, ShouldBeNil)
rq, err := q.(*queryImpl).reduce("", false)
So(rq, ShouldNotBeNil)
So(err, ShouldBeNil)
})
Convey("ensures orders make sense", func() {
q := ds.NewQuery("Cool")
q = q.Filter("cat =", 19).Filter("bob =", 10).Order("bob").Order("bob")
Convey("removes dups and equality orders", func() {
q = q.Order("wat")
qi := q.(*queryImpl)
So(qi.err, ShouldBeNil)
rq, err := qi.reduce("", false)
So(err, ShouldBeNil)
So(rq.suffixFormat, ShouldResemble, []dsS.IndexColumn{
{Property: "wat"}, {Property: "__key__"}})
})
Convey("if we equality-filter on __key__, that's just silly", func() {
q = q.Order("wat").Filter("__key__ =", ds.NewKey("Foo", "wat", 0, nil))
_, err := q.(*queryImpl).reduce("", false)
So(err, ShouldErrLike, "query equality filter on __key__ is silly")
})
})
})
}
func ExampleFilterRDS() {
// Set up your context using a base service implementation (memory or prod)
c := memory.Use(context.Background())
// Apply the counter.FilterRDS
c, counter := FilterRDS(c)
// functions use ds from the context like normal... they don't need to know
// that there are any filters at all.
someCalledFunc := func(c context.Context) {
ds := datastore.Get(c)
vals := []datastore.PropertyMap{{
"FieldName": {datastore.MkProperty(100)},
"$key": {datastore.MkProperty(ds.NewKey("Kind", "", 1, nil))}},
}
if err := ds.PutMulti(vals); err != nil {
panic(err)
}
}
// Using the other function.
someCalledFunc(c)
someCalledFunc(c)
// Then we can see what happened!
fmt.Printf("%d\n", counter.PutMulti.Successes())
// Output:
// 2
}
func withTxnBuf(ctx context.Context, cb func(context.Context) error, opts *datastore.TransactionOptions) error {
inf := info.Get(ctx)
ns := inf.GetNamespace()
parentState, _ := ctx.Value(dsTxnBufParent).(*txnBufState)
roots := stringset.New(0)
rootLimit := 1
if opts != nil && opts.XG {
rootLimit = XGTransactionGroupLimit
}
sizeBudget := DefaultSizeBudget
if parentState != nil {
// TODO(riannucci): this is a bit wonky since it means that a child
// transaction declaring XG=true will only get to modify 25 groups IF
// they're same groups affected by the parent transactions. So instead of
// respecting opts.XG for inner transactions, we just dup everything from
// the parent transaction.
roots = parentState.roots.Dup()
rootLimit = parentState.rootLimit
sizeBudget = parentState.sizeBudget - parentState.entState.total
if sizeBudget < DefaultSizeThreshold {
return ErrTransactionTooLarge
}
}
bufDS, err := memory.NewDatastore(inf.FullyQualifiedAppID(), ns)
if err != nil {
return err
}
state := &txnBufState{
entState: &sizeTracker{},
bufDS: bufDS.Raw(),
roots: roots,
rootLimit: rootLimit,
ns: ns,
aid: inf.AppID(),
parentDS: datastore.Get(context.WithValue(ctx, dsTxnBufHaveLock, true)).Raw(),
sizeBudget: sizeBudget,
}
if err = cb(context.WithValue(ctx, dsTxnBufParent, state)); err != nil {
return err
}
// no reason to unlock this ever. At this point it's toast.
state.Lock()
if parentState == nil {
return commitToReal(state)
}
if err = parentState.canApplyLocked(state); err != nil {
return err
}
parentState.commitLocked(state)
return nil
}
// Add adds a value to the current counter, and returns the old+new values. It
// may cause a counter to come into existance.
func (Example) Add(c context.Context, r *AddReq) (rsp *AddRsp, err error) {
rsp = &AddRsp{}
c = prod.Use(c)
err = dstore.Get(c).RunInTransaction(func(c context.Context) error {
ds := dstore.Get(c)
ctr := &Counter{Name: r.Name}
if err := ds.Get(ctr); err != nil && err != dstore.ErrNoSuchEntity {
return err
}
rsp.Prev = ctr.Val
ctr.Val += r.Delta
rsp.Cur = ctr.Val
return ds.Put(ctr)
}, nil)
return
}
func mkds(data []*Foo) (under, over *count.DSCounter, ds datastore.Interface) {
c := memory.UseWithAppID(context.Background(), "something~else")
ds = datastore.Get(c)
_, err := ds.AllocateIDs(ds.KeyForObj(data[0]), 100)
if err != nil {
panic(err)
}
if err := ds.PutMulti(data); err != nil {
panic(err)
}
c, under = count.FilterRDS(c)
c = FilterRDS(c)
c, over = count.FilterRDS(c)
ds = datastore.Get(c)
return
}
func testGetMeta(c context.Context, k *dsS.Key) int64 {
ds := dsS.Get(c)
mg := &MetaGroup{Parent: k.Root()}
if err := ds.Get(mg); err != nil {
panic(err)
}
return mg.Version
}
func TestRace(t *testing.T) {
t.Parallel()
c := FilterRDS(memory.Use(context.Background()))
ds := datastore.Get(c)
wg := sync.WaitGroup{}
for i := 0; i < 100; i++ {
id := int64(i + 1)
wg.Add(1)
go func() {
defer wg.Done()
err := ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
for i := 0; i < 100; i++ {
err := ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
ctr := &Counter{ID: id}
if err := ds.Get(ctr); err != nil && err != datastore.ErrNoSuchEntity {
t.Fatal("bad Get", err)
}
ctr.Value++
return ds.Put(ctr)
}, nil)
if err != nil {
t.Fatal("bad inner RIT", err)
}
}
return nil
}, nil)
if err != nil {
t.Fatal("bad outer RIT", err)
}
}()
}
wg.Wait()
}
func TestHuge(t *testing.T) {
t.Parallel()
Convey("inner txn too big allows outer txn", t, func() {
_, _, ds := mkds(dataMultiRoot)
So(ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
So(18, fooSetTo(ds), hugeField)
So(ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
So(ds.PutMulti(hugeData), ShouldBeNil)
return nil
}, nil), ShouldErrLike, ErrTransactionTooLarge)
return nil
}, &datastore.TransactionOptions{XG: true}), ShouldBeNil)
So(18, fooShouldHave(ds), hugeField)
})
Convey("outer txn too big prevents inner txn", t, func() {
_, _, ds := mkds(dataMultiRoot)
So(ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
So(ds.PutMulti(hugeData), ShouldBeNil)
So(ds.RunInTransaction(func(c context.Context) error {
panic("never!")
}, nil), ShouldErrLike, ErrTransactionTooLarge)
return nil
}, &datastore.TransactionOptions{XG: true}), ShouldBeNil)
So(1, fooShouldHave(ds), hugeField)
})
}
// GetEntityGroupVersion returns the entity group version for the entity group
// containing root. If the entity group doesn't exist, this function will return
// zero and a nil error.
func GetEntityGroupVersion(c context.Context, root dstore.Key) (int64, error) {
ds := dstore.Get(c)
egm := &EntityGroupMeta{Parent: dskey.Root(root)}
err := ds.Get(egm)
ret := egm.Version
if err == dstore.ErrNoSuchEntity {
// this is OK for callers. The version of the entity group is effectively 0
// in this case.
err = nil
}
return ret, err
}
func TestCompoundIndexes(t *testing.T) {
t.Parallel()
idxKey := func(def dsS.IndexDefinition) string {
So(def, ShouldNotBeNil)
return "idx::" + string(serialize.ToBytes(*def.PrepForIdxTable()))
}
numItms := func(c *memCollection) uint64 {
ret, _ := c.GetTotals()
return ret
}
Convey("Test Compound indexes", t, func() {
type Model struct {
ID int64 `gae:"$id"`
Field1 []string
Field2 []int64
}
c := Use(context.Background())
ds := dsS.Get(c)
t := ds.Testable().(*dsImpl)
head := t.data.head
So(ds.Put(&Model{1, []string{"hello", "world"}, []int64{10, 11}}), ShouldBeNil)
idx := dsS.IndexDefinition{
Kind: "Model",
SortBy: []dsS.IndexColumn{
{Property: "Field2"},
},
}
coll := head.GetCollection(idxKey(idx))
So(coll, ShouldNotBeNil)
So(numItms(coll), ShouldEqual, 2)
idx.SortBy[0].Property = "Field1"
coll = head.GetCollection(idxKey(idx))
So(coll, ShouldNotBeNil)
So(numItms(coll), ShouldEqual, 2)
idx.SortBy = append(idx.SortBy, dsS.IndexColumn{Property: "Field1"})
So(head.GetCollection(idxKey(idx)), ShouldBeNil)
t.AddIndexes(&idx)
coll = head.GetCollection(idxKey(idx))
So(coll, ShouldNotBeNil)
So(numItms(coll), ShouldEqual, 4)
})
}
// CAS does an atomic compare-and-swap on a counter.
func (Example) CAS(c context.Context, r *CASReq) (err error) {
success := false
c = prod.Use(c)
err = dstore.Get(c).RunInTransaction(func(c context.Context) error {
ds := dstore.Get(c)
ctr := &Counter{Name: r.Name}
if err := ds.Get(ctr); err != nil {
return err
}
if ctr.Val == r.OldVal {
success = true
ctr.Val = r.NewVal
return ds.Put(ctr)
}
success = false
return nil
}, nil)
if err == nil && !success {
err = endpoints.ConflictError
}
return
}
// NewDatastore creates a new standalone memory implementation of the datastore,
// suitable for embedding for doing in-memory data organization.
//
// It's configured by default with the following settings:
// * AutoIndex(true)
// * Consistent(true)
// * DisableSpecialEntities(true)
//
// These settings can of course be changed by using the Testable() interface.
func NewDatastore(aid, ns string) (ds.Interface, error) {
ctx := UseWithAppID(context.Background(), aid)
ctx, err := info.Get(ctx).Namespace(ns)
if err != nil {
return nil, err
}
ret := ds.Get(ctx)
t := ret.Testable()
t.AutoIndex(true)
t.Consistent(true)
t.DisableSpecialEntities(true)
return ret, nil
}
// High level test for regression in how zero time is stored,
// see https://codereview.chromium.org/1334043003/
func TestDefaultTimeField(t *testing.T) {
t.Parallel()
Convey("Default time.Time{} can be stored", t, func() {
type Model struct {
ID int64 `gae:"$id"`
Time time.Time
}
ds := dsS.Get(Use(context.Background()))
m := Model{ID: 1}
So(ds.Put(&m), ShouldBeNil)
// Reset to something non zero to ensure zero is fetched.
m.Time = time.Now().UTC()
So(ds.Get(&m), ShouldBeNil)
So(m.Time.IsZero(), ShouldBeTrue)
})
}
func TestGetEntityGroupVersion(t *testing.T) {
t.Parallel()
Convey("GetEntityGroupVersion", t, func() {
c := memory.Use(context.Background())
c, fb := featureBreaker.FilterRDS(c, errors.New("INTERNAL_ERROR"))
ds := dstore.Get(c)
pm := dstore.PropertyMap{
"$key": {dstore.MkPropertyNI(ds.NewKey("A", "", 0, nil))},
"Val": {dstore.MkProperty(10)},
}
So(ds.Put(pm), ShouldBeNil)
aKey, ok := pm.GetMetaDefault("key", nil).(dstore.Key)
So(ok, ShouldBeTrue)
So(aKey, ShouldNotBeNil)
v, err := GetEntityGroupVersion(c, aKey)
So(err, ShouldBeNil)
So(v, ShouldEqual, 1)
So(ds.Delete(aKey), ShouldBeNil)
v, err = GetEntityGroupVersion(c, ds.NewKey("madeUp", "thing", 0, aKey))
So(err, ShouldBeNil)
So(v, ShouldEqual, 2)
v, err = GetEntityGroupVersion(c, ds.NewKey("madeUp", "thing", 0, nil))
So(err, ShouldBeNil)
So(v, ShouldEqual, 0)
fb.BreakFeatures(nil, "GetMulti")
v, err = GetEntityGroupVersion(c, aKey)
So(err.Error(), ShouldContainSubstring, "INTERNAL_ERROR")
})
}
// IsGloballyEnabled checks to see if this filter is enabled globally.
//
// This checks InstanceEnabledStatic, as well as polls the datastore entity
// /dscache,1 (a GlobalConfig instance)
// Once every GlobalEnabledCheckInterval.
//
// For correctness, any error encountered returns true. If this assumed false,
// then Put operations might incorrectly invalidate the cache.
func IsGloballyEnabled(c context.Context) bool {
if !InstanceEnabledStatic {
return false
}
now := clock.Now(c)
globalEnabledLock.RLock()
nextCheck := globalEnabledNextCheck
enabledVal := globalEnabled
globalEnabledLock.RUnlock()
if now.Before(nextCheck) {
return enabledVal
}
globalEnabledLock.Lock()
defer globalEnabledLock.Unlock()
// just in case we raced
if now.Before(globalEnabledNextCheck) {
return globalEnabled
}
// always go to the default namespace
c, err := info.Get(c).Namespace("")
if err != nil {
return true
}
cfg := &GlobalConfig{Enable: true}
if err := datastore.Get(c).Get(cfg); err != nil && err != datastore.ErrNoSuchEntity {
return true
}
globalEnabled = cfg.Enable
globalEnabledNextCheck = now.Add(GlobalEnabledCheckInterval)
return globalEnabled
}
// List returns a list of all the counters. Note that it's very poorly
// implemented! It's completely unpaged. I don't care :).
func (Example) List(c context.Context) (rsp *ListRsp, err error) {
ds := dstore.Get(prod.Use(c))
rsp = &ListRsp{}
err = ds.GetAll(ds.NewQuery("Counter"), &rsp.Counters)
return
}
func TestDSCache(t *testing.T) {
t.Parallel()
zeroTime, err := time.Parse("2006-01-02T15:04:05.999999999Z", "2006-01-02T15:04:05.999999999Z")
if err != nil {
panic(err)
}
Convey("Test dscache", t, func() {
c := mathrand.Set(context.Background(), rand.New(rand.NewSource(1)))
clk := testclock.New(zeroTime)
c = clock.Set(c, clk)
c = memory.Use(c)
dsUnder := datastore.Get(c)
mc := memcache.Get(c)
shardsForKey := func(k *datastore.Key) int {
last := k.LastTok()
if last.Kind == "shardObj" {
return int(last.IntID)
}
if last.Kind == "noCacheObj" {
return 0
}
return DefaultShards
}
numMemcacheItems := func() uint64 {
stats, err := mc.Stats()
So(err, ShouldBeNil)
return stats.Items
}
Convey("enabled cases", func() {
c = FilterRDS(c, shardsForKey)
ds := datastore.Get(c)
So(dsUnder, ShouldNotBeNil)
So(ds, ShouldNotBeNil)
So(mc, ShouldNotBeNil)
Convey("basically works", func() {
pm := datastore.PropertyMap{
"BigData": {datastore.MkProperty([]byte(""))},
"Value": {datastore.MkProperty("hi")},
}
encoded := append([]byte{0}, serialize.ToBytes(pm)...)
o := object{ID: 1, Value: "hi"}
So(ds.Put(&o), ShouldBeNil)
o = object{ID: 1}
So(dsUnder.Get(&o), ShouldBeNil)
So(o.Value, ShouldEqual, "hi")
itm, err := mc.Get(MakeMemcacheKey(0, ds.KeyForObj(&o)))
So(err, ShouldEqual, memcache.ErrCacheMiss)
o = object{ID: 1}
So(ds.Get(&o), ShouldBeNil)
So(o.Value, ShouldEqual, "hi")
itm, err = mc.Get(itm.Key())
So(err, ShouldBeNil)
So(itm.Value(), ShouldResemble, encoded)
Convey("now we don't need the datastore!", func() {
o := object{ID: 1}
// delete it, bypassing the cache filter. Don't do this in production
// unless you want a crappy cache.
So(dsUnder.Delete(ds.KeyForObj(&o)), ShouldBeNil)
itm, err := mc.Get(MakeMemcacheKey(0, ds.KeyForObj(&o)))
So(err, ShouldBeNil)
So(itm.Value(), ShouldResemble, encoded)
So(ds.Get(&o), ShouldBeNil)
So(o.Value, ShouldEqual, "hi")
})
Convey("deleting it properly records that fact, however", func() {
o := object{ID: 1}
So(ds.Delete(ds.KeyForObj(&o)), ShouldBeNil)
itm, err := mc.Get(MakeMemcacheKey(0, ds.KeyForObj(&o)))
So(err, ShouldEqual, memcache.ErrCacheMiss)
So(ds.Get(&o), ShouldEqual, datastore.ErrNoSuchEntity)
itm, err = mc.Get(itm.Key())
So(err, ShouldBeNil)
So(itm.Value(), ShouldResemble, []byte{})
// this one hits memcache
So(ds.Get(&o), ShouldEqual, datastore.ErrNoSuchEntity)
})
})
Convey("compression works", func() {
o := object{ID: 2, Value: `¯\_(ツ)_/¯`}
data := make([]byte, 4000)
for i := range data {
const alpha = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()"
data[i] = alpha[i%len(alpha)]
}
o.BigData = data
So(ds.Put(&o), ShouldBeNil)
So(ds.Get(&o), ShouldBeNil)
itm, err := mc.Get(MakeMemcacheKey(0, ds.KeyForObj(&o)))
So(err, ShouldBeNil)
So(itm.Value()[0], ShouldEqual, ZlibCompression)
So(len(itm.Value()), ShouldEqual, 653) // a bit smaller than 4k
// ensure the next Get comes from the cache
So(dsUnder.Delete(ds.KeyForObj(&o)), ShouldBeNil)
o = object{ID: 2}
So(ds.Get(&o), ShouldBeNil)
So(o.Value, ShouldEqual, `¯\_(ツ)_/¯`)
So(o.BigData, ShouldResemble, data)
})
Convey("transactions", func() {
Convey("work", func() {
// populate an object @ ID1
So(ds.Put(&object{ID: 1, Value: "something"}), ShouldBeNil)
So(ds.Get(&object{ID: 1}), ShouldBeNil)
So(ds.Put(&object{ID: 2, Value: "nurbs"}), ShouldBeNil)
So(ds.Get(&object{ID: 2}), ShouldBeNil)
// memcache now has the wrong value (simulated race)
So(dsUnder.Put(&object{ID: 1, Value: "else"}), ShouldBeNil)
So(ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
o := &object{ID: 1}
So(ds.Get(o), ShouldBeNil)
So(o.Value, ShouldEqual, "else")
o.Value = "txn"
So(ds.Put(o), ShouldBeNil)
So(ds.Delete(ds.KeyForObj(&object{ID: 2})), ShouldBeNil)
return nil
}, &datastore.TransactionOptions{XG: true}), ShouldBeNil)
_, err := mc.Get(MakeMemcacheKey(0, ds.KeyForObj(&object{ID: 1})))
So(err, ShouldEqual, memcache.ErrCacheMiss)
_, err = mc.Get(MakeMemcacheKey(0, ds.KeyForObj(&object{ID: 2})))
So(err, ShouldEqual, memcache.ErrCacheMiss)
o := &object{ID: 1}
So(ds.Get(o), ShouldBeNil)
So(o.Value, ShouldEqual, "txn")
})
Convey("errors don't invalidate", func() {
// populate an object @ ID1
So(ds.Put(&object{ID: 1, Value: "something"}), ShouldBeNil)
So(ds.Get(&object{ID: 1}), ShouldBeNil)
So(numMemcacheItems(), ShouldEqual, 1)
So(ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
o := &object{ID: 1}
So(ds.Get(o), ShouldBeNil)
So(o.Value, ShouldEqual, "something")
o.Value = "txn"
So(ds.Put(o), ShouldBeNil)
return errors.New("OH NOES")
}, nil).Error(), ShouldContainSubstring, "OH NOES")
// memcache still has the original
So(numMemcacheItems(), ShouldEqual, 1)
So(dsUnder.Delete(ds.KeyForObj(&object{ID: 1})), ShouldBeNil)
o := &object{ID: 1}
So(ds.Get(o), ShouldBeNil)
So(o.Value, ShouldEqual, "something")
})
})
Convey("control", func() {
Convey("per-model bypass", func() {
type model struct {
ID string `gae:"$id"`
UseDSCache datastore.Toggle `gae:"$dscache.enable,false"`
Value string
}
itms := []model{
{ID: "hi", Value: "something"},
{ID: "there", Value: "else", UseDSCache: datastore.On},
}
So(ds.PutMulti(itms), ShouldBeNil)
So(ds.GetMulti(itms), ShouldBeNil)
So(numMemcacheItems(), ShouldEqual, 1)
})
Convey("per-key shard count", func() {
s := &shardObj{ID: 4, Value: "hi"}
So(ds.Put(s), ShouldBeNil)
So(ds.Get(s), ShouldBeNil)
So(numMemcacheItems(), ShouldEqual, 1)
for i := 0; i < 20; i++ {
So(ds.Get(s), ShouldBeNil)
}
So(numMemcacheItems(), ShouldEqual, 4)
})
Convey("per-key cache disablement", func() {
n := &noCacheObj{ID: "nurbs", Value: true}
So(ds.Put(n), ShouldBeNil)
So(ds.Get(n), ShouldBeNil)
So(numMemcacheItems(), ShouldEqual, 0)
})
Convey("per-model expiration", func() {
type model struct {
ID int64 `gae:"$id"`
DSCacheExp int64 `gae:"$dscache.expiration,7"`
Value string
}
So(ds.Put(&model{ID: 1, Value: "mooo"}), ShouldBeNil)
So(ds.Get(&model{ID: 1}), ShouldBeNil)
itm, err := mc.Get(MakeMemcacheKey(0, ds.KeyForObj(&model{ID: 1})))
So(err, ShouldBeNil)
clk.Add(10 * time.Second)
_, err = mc.Get(itm.Key())
So(err, ShouldEqual, memcache.ErrCacheMiss)
})
})
Convey("screw cases", func() {
Convey("memcache contains bogus value (simulated failed AddMulti)", func() {
o := &object{ID: 1, Value: "spleen"}
So(ds.Put(o), ShouldBeNil)
sekret := []byte("I am a banana")
itm := mc.NewItem(MakeMemcacheKey(0, ds.KeyForObj(o))).SetValue(sekret)
So(mc.Set(itm), ShouldBeNil)
o = &object{ID: 1}
So(ds.Get(o), ShouldBeNil)
So(o.Value, ShouldEqual, "spleen")
itm, err := mc.Get(itm.Key())
So(err, ShouldBeNil)
So(itm.Flags(), ShouldEqual, ItemUKNONWN)
So(itm.Value(), ShouldResemble, sekret)
})
Convey("memcache contains bogus value (corrupt entry)", func() {
o := &object{ID: 1, Value: "spleen"}
So(ds.Put(o), ShouldBeNil)
sekret := []byte("I am a banana")
itm := (mc.NewItem(MakeMemcacheKey(0, ds.KeyForObj(o))).
SetValue(sekret).
SetFlags(uint32(ItemHasData)))
So(mc.Set(itm), ShouldBeNil)
o = &object{ID: 1}
So(ds.Get(o), ShouldBeNil)
So(o.Value, ShouldEqual, "spleen")
itm, err := mc.Get(itm.Key())
So(err, ShouldBeNil)
So(itm.Flags(), ShouldEqual, ItemHasData)
So(itm.Value(), ShouldResemble, sekret)
})
Convey("other entity has the lock", func() {
o := &object{ID: 1, Value: "spleen"}
So(ds.Put(o), ShouldBeNil)
sekret := []byte("r@vmarod!#)%9T")
itm := (mc.NewItem(MakeMemcacheKey(0, ds.KeyForObj(o))).
SetValue(sekret).
SetFlags(uint32(ItemHasLock)))
So(mc.Set(itm), ShouldBeNil)
o = &object{ID: 1}
So(ds.Get(o), ShouldBeNil)
So(o.Value, ShouldEqual, "spleen")
itm, err := mc.Get(itm.Key())
So(err, ShouldBeNil)
So(itm.Flags(), ShouldEqual, ItemHasLock)
So(itm.Value(), ShouldResemble, sekret)
})
Convey("massive entities can't be cached", func() {
o := &object{ID: 1, Value: "spleen"}
mr := mathrand.Get(c)
numRounds := (internalValueSizeLimit / 8) * 2
buf := bytes.Buffer{}
for i := 0; i < numRounds; i++ {
So(binary.Write(&buf, binary.LittleEndian, mr.Int63()), ShouldBeNil)
}
o.BigData = buf.Bytes()
So(ds.Put(o), ShouldBeNil)
o.BigData = nil
So(ds.Get(o), ShouldBeNil)
itm, err := mc.Get(MakeMemcacheKey(0, ds.KeyForObj(o)))
So(err, ShouldBeNil)
// Is locked until the next put, forcing all access to the datastore.
So(itm.Value(), ShouldResemble, []byte{})
So(itm.Flags(), ShouldEqual, ItemHasLock)
o.BigData = []byte("hi :)")
So(ds.Put(o), ShouldBeNil)
So(ds.Get(o), ShouldBeNil)
itm, err = mc.Get(itm.Key())
So(err, ShouldBeNil)
So(itm.Flags(), ShouldEqual, ItemHasData)
})
Convey("failure on Setting memcache locks is a hard stop", func() {
c, fb := featureBreaker.FilterMC(c, nil)
fb.BreakFeatures(nil, "SetMulti")
ds := datastore.Get(c)
So(ds.Put(&object{ID: 1}).Error(), ShouldContainSubstring, "SetMulti")
})
Convey("failure on Setting memcache locks in a transaction is a hard stop", func() {
c, fb := featureBreaker.FilterMC(c, nil)
fb.BreakFeatures(nil, "SetMulti")
ds := datastore.Get(c)
So(ds.RunInTransaction(func(c context.Context) error {
So(datastore.Get(c).Put(&object{ID: 1}), ShouldBeNil)
// no problems here... memcache operations happen after the function
// body quits.
return nil
}, nil).Error(), ShouldContainSubstring, "SetMulti")
})
})
Convey("misc", func() {
Convey("verify numShards caps at MaxShards", func() {
sc := supportContext{shardsForKey: shardsForKey}
So(sc.numShards(ds.KeyForObj(&shardObj{ID: 9001})), ShouldEqual, MaxShards)
})
Convey("CompressionType.String", func() {
So(NoCompression.String(), ShouldEqual, "NoCompression")
So(ZlibCompression.String(), ShouldEqual, "ZlibCompression")
So(CompressionType(100).String(), ShouldEqual, "UNKNOWN_CompressionType(100)")
})
})
})
Convey("disabled cases", func() {
defer func() {
globalEnabled = true
}()
So(IsGloballyEnabled(c), ShouldBeTrue)
So(SetGlobalEnable(c, false), ShouldBeNil)
// twice is a nop
So(SetGlobalEnable(c, false), ShouldBeNil)
// but it takes 5 minutes to kick in
So(IsGloballyEnabled(c), ShouldBeTrue)
clk.Add(time.Minute*5 + time.Second)
So(IsGloballyEnabled(c), ShouldBeFalse)
So(mc.Set(mc.NewItem("test").SetValue([]byte("hi"))), ShouldBeNil)
So(numMemcacheItems(), ShouldEqual, 1)
So(SetGlobalEnable(c, true), ShouldBeNil)
// memcache gets flushed as a side effect
So(numMemcacheItems(), ShouldEqual, 0)
// Still takes 5 minutes to kick in
So(IsGloballyEnabled(c), ShouldBeFalse)
clk.Add(time.Minute*5 + time.Second)
So(IsGloballyEnabled(c), ShouldBeTrue)
})
})
}
func TestTaskQueue(t *testing.T) {
t.Parallel()
Convey("TaskQueue", t, func() {
now := time.Date(2000, time.January, 1, 1, 1, 1, 1, time.UTC)
c, tc := testclock.UseTime(context.Background(), now)
c = mathrand.Set(c, rand.New(rand.NewSource(clock.Now(c).UnixNano())))
c = Use(c)
tq := tqS.Get(c)
tqt := tq.Raw().Testable()
So(tqt, ShouldNotBeNil)
So(tq, ShouldNotBeNil)
Convey("implements TQMultiReadWriter", func() {
Convey("Add", func() {
t := tq.NewTask("/hello/world")
Convey("works", func() {
t.Delay = 4 * time.Second
t.Header = http.Header{}
t.Header.Add("Cat", "tabby")
t.Payload = []byte("watwatwat")
t.RetryOptions = &tqS.RetryOptions{AgeLimit: 7 * time.Second}
So(tq.Add(t, ""), ShouldBeNil)
name := "Z_UjshxM9ecyMQfGbZmUGOEcgxWU0_5CGLl_-RntudwAw2DqQ5-58bzJiWQN4OKzeuUb9O4JrPkUw2rOvk2Ax46THojnQ6avBQgZdrKcJmrwQ6o4qKfJdiyUbGXvy691yRfzLeQhs6cBhWrgf3wH-VPMcA4SC-zlbJ2U8An7I0zJQA5nBFnMNoMgT-2peGoay3rCSbj4z9VFFm9kS_i6JCaQH518ujLDSNCYdjTq6B6lcWrZAh0U_q3a1S2nXEwrKiw_t9MTNQFgAQZWyGBbvZQPmeRYtu8SPaWzTfd25v_YWgBuVL2rRSPSMvlDwE04nNdtvVzE8vNNiA1zRimmdzKeqATQF9_ReUvj4D7U8dcS703DZWfKMBLgBffY9jqCassOOOw77V72Oq5EVauUw3Qw0L6bBsfM9FtahTKUdabzRZjXUoze3EK4KXPt3-wdidau-8JrVf2XFocjjZbwHoxcGvbtT3b4nGLDlgwdC00bwaFBZWff"
So(tqt.GetScheduledTasks()["default"][name], ShouldResemble, &tqS.Task{
ETA: now.Add(4 * time.Second),
Header: http.Header{"Cat": []string{"tabby"}},
Method: "POST",
Name: name,
Path: "/hello/world",
Payload: []byte("watwatwat"),
RetryOptions: &tqS.RetryOptions{AgeLimit: 7 * time.Second},
})
})
Convey("picks up namespace", func() {
c, err := info.Get(c).Namespace("coolNamespace")
So(err, ShouldBeNil)
tq = tqS.Get(c)
t := tq.NewTask("")
So(tq.Add(t, ""), ShouldBeNil)
So(t.Header, ShouldResemble, http.Header{
"X-Appengine-Current-Namespace": {"coolNamespace"},
})
})
Convey("cannot add to bad queues", func() {
So(tq.Add(nil, "waaat").Error(), ShouldContainSubstring, "UNKNOWN_QUEUE")
Convey("but you can add Queues when testing", func() {
tqt.CreateQueue("waaat")
So(tq.Add(t, "waaat"), ShouldBeNil)
Convey("you just can't add them twice", func() {
So(func() { tqt.CreateQueue("waaat") }, ShouldPanic)
})
})
})
Convey("supplies a URL if it's missing", func() {
t.Path = ""
So(tq.Add(t, ""), ShouldBeNil)
So(t.Path, ShouldEqual, "/_ah/queue/default")
})
Convey("cannot add twice", func() {
t.Name = "bob"
So(tq.Add(t, ""), ShouldBeNil)
// can't add the same one twice!
So(tq.Add(t, ""), ShouldEqual, tqS.ErrTaskAlreadyAdded)
})
Convey("cannot add deleted task", func() {
t.Name = "bob"
So(tq.Add(t, ""), ShouldBeNil)
So(tq.Delete(t, ""), ShouldBeNil)
// can't add a deleted task!
So(tq.Add(t, ""), ShouldEqual, tqS.ErrTaskAlreadyAdded)
})
Convey("cannot set ETA+Delay", func() {
t.ETA = clock.Now(c).Add(time.Hour)
tc.Add(time.Second)
t.Delay = time.Hour
So(func() { tq.Add(t, "") }, ShouldPanic)
})
Convey("must use a reasonable method", func() {
t.Method = "Crystal"
So(tq.Add(t, "").Error(), ShouldContainSubstring, "bad method")
})
Convey("payload gets dumped for non POST/PUT methods", func() {
t.Method = "HEAD"
t.Payload = []byte("coool")
So(tq.Add(t, ""), ShouldBeNil)
So(t.Payload, ShouldBeNil)
})
Convey("invalid names are rejected", func() {
t.Name = "happy times"
So(tq.Add(t, "").Error(), ShouldContainSubstring, "INVALID_TASK_NAME")
})
Convey("AddMulti also works", func() {
t2 := t.Duplicate()
t2.Path = "/hi/city"
expect := []*tqS.Task{t, t2}
So(tq.AddMulti(expect, "default"), ShouldBeNil)
So(len(expect), ShouldEqual, 2)
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 2)
for i := range expect {
Convey(fmt.Sprintf("task %d: %s", i, expect[i].Path), func() {
So(expect[i].Method, ShouldEqual, "POST")
So(expect[i].ETA, ShouldHappenOnOrBefore, now)
So(len(expect[i].Name), ShouldEqual, 500)
})
}
Convey("stats work too", func() {
delay := -time.Second * 400
t := tq.NewTask("/somewhere")
t.Delay = delay
So(tq.Add(t, ""), ShouldBeNil)
stats, err := tq.Stats("")
So(err, ShouldBeNil)
So(stats[0].Tasks, ShouldEqual, 3)
So(stats[0].OldestETA, ShouldHappenOnOrBefore, clock.Now(c).Add(delay))
_, err = tq.Stats("noexist")
So(err.Error(), ShouldContainSubstring, "UNKNOWN_QUEUE")
})
Convey("can purge all tasks", func() {
So(tq.Add(&tqS.Task{Path: "/wut/nerbs"}, ""), ShouldBeNil)
So(tq.Purge(""), ShouldBeNil)
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTombstonedTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTransactionTasks()["default"]), ShouldEqual, 0)
Convey("purging a queue which DNE fails", func() {
So(tq.Purge("noexist").Error(), ShouldContainSubstring, "UNKNOWN_QUEUE")
})
})
})
})
Convey("Delete", func() {
t := &tqS.Task{Path: "/hello/world"}
So(tq.Add(t, ""), ShouldBeNil)
Convey("works", func() {
err := tq.Delete(t, "")
So(err, ShouldBeNil)
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTombstonedTasks()["default"]), ShouldEqual, 1)
So(tqt.GetTombstonedTasks()["default"][t.Name], ShouldResemble, t)
})
Convey("cannot delete a task twice", func() {
So(tq.Delete(t, ""), ShouldBeNil)
So(tq.Delete(t, "").Error(), ShouldContainSubstring, "TOMBSTONED_TASK")
Convey("but you can if you do a reset", func() {
tqt.ResetTasks()
So(tq.Add(t, ""), ShouldBeNil)
So(tq.Delete(t, ""), ShouldBeNil)
})
})
Convey("cannot delete from bogus queues", func() {
err := tq.Delete(t, "wat")
So(err.Error(), ShouldContainSubstring, "UNKNOWN_QUEUE")
})
Convey("cannot delete a missing task", func() {
t.Name = "tarntioarenstyw"
err := tq.Delete(t, "")
So(err.Error(), ShouldContainSubstring, "UNKNOWN_TASK")
})
Convey("DeleteMulti also works", func() {
t2 := t.Duplicate()
t2.Name = ""
t2.Path = "/hi/city"
So(tq.Add(t2, ""), ShouldBeNil)
Convey("usually works", func() {
So(tq.DeleteMulti([]*tqS.Task{t, t2}, ""), ShouldBeNil)
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTombstonedTasks()["default"]), ShouldEqual, 2)
})
})
})
})
Convey("works with transactions", func() {
t := &tqS.Task{Path: "/hello/world"}
So(tq.Add(t, ""), ShouldBeNil)
t2 := &tqS.Task{Path: "/hi/city"}
So(tq.Add(t2, ""), ShouldBeNil)
So(tq.Delete(t2, ""), ShouldBeNil)
Convey("can view regular tasks", func() {
dsS.Get(c).RunInTransaction(func(c context.Context) error {
tqt := tqS.GetRaw(c).Testable()
So(tqt.GetScheduledTasks()["default"][t.Name], ShouldResemble, t)
So(tqt.GetTombstonedTasks()["default"][t2.Name], ShouldResemble, t2)
So(tqt.GetTransactionTasks()["default"], ShouldBeNil)
return nil
}, nil)
})
Convey("can add a new task", func() {
t3 := &tqS.Task{Path: "/sandwitch/victory"}
err := dsS.Get(c).RunInTransaction(func(c context.Context) error {
tq := tqS.Get(c)
tqt := tq.Raw().Testable()
So(tq.Add(t3, ""), ShouldBeNil)
So(t3.Name, ShouldEqual, "")
So(tqt.GetScheduledTasks()["default"][t.Name], ShouldResemble, t)
So(tqt.GetTombstonedTasks()["default"][t2.Name], ShouldResemble, t2)
So(tqt.GetTransactionTasks()["default"][0], ShouldResemble, t3)
return nil
}, nil)
So(err, ShouldBeNil)
for _, tsk := range tqt.GetScheduledTasks()["default"] {
if tsk.Name == t.Name {
So(tsk, ShouldResemble, t)
} else {
tsk.Name = ""
So(tsk, ShouldResemble, t3)
}
}
So(tqt.GetTombstonedTasks()["default"][t2.Name], ShouldResemble, t2)
So(tqt.GetTransactionTasks()["default"], ShouldBeNil)
})
Convey("can add a new task (but reset the state in a test)", func() {
t3 := &tqS.Task{Path: "/sandwitch/victory"}
ttq := tqS.Interface(nil)
dsS.Get(c).RunInTransaction(func(c context.Context) error {
ttq = tqS.Get(c)
tqt := ttq.Raw().Testable()
So(ttq.Add(t3, ""), ShouldBeNil)
So(tqt.GetScheduledTasks()["default"][t.Name], ShouldResemble, t)
So(tqt.GetTombstonedTasks()["default"][t2.Name], ShouldResemble, t2)
So(tqt.GetTransactionTasks()["default"][0], ShouldResemble, t3)
tqt.ResetTasks()
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTombstonedTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTransactionTasks()["default"]), ShouldEqual, 0)
return nil
}, nil)
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTombstonedTasks()["default"]), ShouldEqual, 0)
So(len(tqt.GetTransactionTasks()["default"]), ShouldEqual, 0)
Convey("and reusing a closed context is bad times", func() {
So(ttq.Add(nil, "").Error(), ShouldContainSubstring, "expired")
})
})
Convey("you can AddMulti as well", func() {
dsS.Get(c).RunInTransaction(func(c context.Context) error {
tq := tqS.Get(c)
tqt := tq.Raw().Testable()
t.Name = ""
tasks := []*tqS.Task{t.Duplicate(), t.Duplicate(), t.Duplicate()}
So(tq.AddMulti(tasks, ""), ShouldBeNil)
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 1)
So(len(tqt.GetTransactionTasks()["default"]), ShouldEqual, 3)
return nil
}, nil)
So(len(tqt.GetScheduledTasks()["default"]), ShouldEqual, 4)
So(len(tqt.GetTransactionTasks()["default"]), ShouldEqual, 0)
})
Convey("unless you add too many things", func() {
dsS.Get(c).RunInTransaction(func(c context.Context) error {
for i := 0; i < 5; i++ {
So(tqS.Get(c).Add(t.Duplicate(), ""), ShouldBeNil)
}
So(tqS.Get(c).Add(t, "").Error(), ShouldContainSubstring, "BAD_REQUEST")
return nil
}, nil)
})
Convey("unless you Add to a bad queue", func() {
dsS.Get(c).RunInTransaction(func(c context.Context) error {
So(tqS.Get(c).Add(t, "meat").Error(), ShouldContainSubstring, "UNKNOWN_QUEUE")
Convey("unless you add it!", func() {
tqS.GetRaw(c).Testable().CreateQueue("meat")
So(tqS.Get(c).Add(t, "meat"), ShouldBeNil)
})
return nil
}, nil)
})
Convey("No other features are available, however", func() {
dsS.Get(c).RunInTransaction(func(c context.Context) error {
So(tqS.Get(c).Delete(t, "").Error(), ShouldContainSubstring, "cannot DeleteMulti from a transaction")
So(tqS.Get(c).Purge("").Error(), ShouldContainSubstring, "cannot Purge from a transaction")
_, err := tqS.Get(c).Stats("")
So(err.Error(), ShouldContainSubstring, "cannot Stats from a transaction")
return nil
}, nil)
})
Convey("adding a new task only happens if we don't errout", func() {
dsS.Get(c).RunInTransaction(func(c context.Context) error {
t3 := tq.NewTask("/sandwitch/victory")
So(tqS.Get(c).Add(t3, ""), ShouldBeNil)
return fmt.Errorf("nooooo")
}, nil)
So(tqt.GetScheduledTasks()["default"][t.Name], ShouldResemble, t)
So(tqt.GetTombstonedTasks()["default"][t2.Name], ShouldResemble, t2)
So(tqt.GetTransactionTasks()["default"], ShouldBeNil)
})
Convey("likewise, a panic doesn't schedule anything", func() {
func() {
defer func() { recover() }()
dsS.Get(c).RunInTransaction(func(c context.Context) error {
tq := tqS.Get(c)
So(tq.Add(tq.NewTask("/sandwitch/victory"), ""), ShouldBeNil)
panic(fmt.Errorf("nooooo"))
}, nil)
}()
So(tqt.GetScheduledTasks()["default"][t.Name], ShouldResemble, t)
So(tqt.GetTombstonedTasks()["default"][t2.Name], ShouldResemble, t2)
So(tqt.GetTransactionTasks()["default"], ShouldBeNil)
})
})
})
}
func TestBasicDatastore(t *testing.T) {
t.Parallel()
Convey("basic", t, func() {
inst, err := aetest.NewInstance(&aetest.Options{
StronglyConsistentDatastore: true,
})
So(err, ShouldBeNil)
defer inst.Close()
req, err := inst.NewRequest("GET", "/", nil)
So(err, ShouldBeNil)
ctx := Use(context.Background(), req)
ds := datastore.Get(ctx)
mc := memcache.Get(ctx)
inf := info.Get(ctx)
Convey("logging allows you to tweak the level", func() {
// You have to visually confirm that this actually happens in the stdout
// of the test... yeah I know.
logging.Debugf(ctx, "SHOULD NOT SEE")
logging.Infof(ctx, "SHOULD SEE")
ctx = logging.SetLevel(ctx, logging.Debug)
logging.Debugf(ctx, "SHOULD SEE")
logging.Infof(ctx, "SHOULD SEE (2)")
})
Convey("Can probe/change Namespace", func() {
So(inf.GetNamespace(), ShouldEqual, "")
ctx, err = inf.Namespace("wat")
So(err, ShouldBeNil)
inf = info.Get(ctx)
So(inf.GetNamespace(), ShouldEqual, "wat")
ds = datastore.Get(ctx)
So(ds.MakeKey("Hello", "world").Namespace(), ShouldEqual, "wat")
})
Convey("Can get non-transactional context", func() {
ctx, err := inf.Namespace("foo")
So(err, ShouldBeNil)
ds = datastore.Get(ctx)
inf = info.Get(ctx)
ds.RunInTransaction(func(ctx context.Context) error {
So(ds.MakeKey("Foo", "bar").Namespace(), ShouldEqual, "foo")
So(ds.Put(&TestStruct{ValueI: []int64{100}}), ShouldBeNil)
err = datastore.GetNoTxn(ctx).RunInTransaction(func(ctx context.Context) error {
ds = datastore.Get(ctx)
So(ds.MakeKey("Foo", "bar").Namespace(), ShouldEqual, "foo")
So(ds.Put(&TestStruct{ValueI: []int64{100}}), ShouldBeNil)
return nil
}, nil)
So(err, ShouldBeNil)
return nil
}, nil)
})
Convey("Can Put/Get", func() {
orig := TestStruct{
ValueI: []int64{1, 7, 946688461000000, 996688461000000},
ValueB: []bool{true, false},
ValueS: []string{"hello", "world"},
ValueF: []float64{1.0, 7.0, 946688461000000.0, 996688461000000.0},
ValueBS: [][]byte{
[]byte("allo"),
[]byte("hello"),
[]byte("world"),
[]byte("zurple"),
},
ValueK: []*datastore.Key{
ds.NewKey("Something", "Cool", 0, nil),
ds.NewKey("Something", "", 1, nil),
ds.NewKey("Something", "Recursive", 0,
ds.NewKey("Parent", "", 2, nil)),
},
ValueBK: []blobstore.Key{"bellow", "hello"},
ValueGP: []datastore.GeoPoint{
{Lat: 120.7, Lng: 95.5},
},
}
So(ds.Put(&orig), ShouldBeNil)
ret := TestStruct{ID: orig.ID}
So(ds.Get(&ret), ShouldBeNil)
So(ret, ShouldResemble, orig)
// can't be sure the indexes have caught up... so sleep
time.Sleep(time.Second)
Convey("Can query", func() {
q := datastore.NewQuery("TestStruct")
ds.Run(q, func(ts *TestStruct) {
So(*ts, ShouldResemble, orig)
})
count, err := ds.Count(q)
So(err, ShouldBeNil)
So(count, ShouldEqual, 1)
})
Convey("Can project", func() {
q := datastore.NewQuery("TestStruct").Project("ValueS")
rslts := []datastore.PropertyMap{}
So(ds.GetAll(q, &rslts), ShouldBeNil)
So(rslts, ShouldResemble, []datastore.PropertyMap{
{
"$key": {mpNI(ds.KeyForObj(&orig))},
"ValueS": {mp("hello")},
},
{
"$key": {mpNI(ds.KeyForObj(&orig))},
"ValueS": {mp("world")},
},
})
q = datastore.NewQuery("TestStruct").Project("ValueBS")
rslts = []datastore.PropertyMap{}
So(ds.GetAll(q, &rslts), ShouldBeNil)
So(rslts, ShouldResemble, []datastore.PropertyMap{
{
"$key": {mpNI(ds.KeyForObj(&orig))},
"ValueBS": {mp("allo")},
},
{
"$key": {mpNI(ds.KeyForObj(&orig))},
"ValueBS": {mp("hello")},
},
{
"$key": {mpNI(ds.KeyForObj(&orig))},
"ValueBS": {mp("world")},
},
{
"$key": {mpNI(ds.KeyForObj(&orig))},
"ValueBS": {mp("zurple")},
},
})
count, err := ds.Count(q)
So(err, ShouldBeNil)
So(count, ShouldEqual, 4)
})
})
Convey("Can Put/Get (time)", func() {
// time comparisons in Go are wonky, so this is pulled out
pm := datastore.PropertyMap{
"$key": {mpNI(ds.NewKey("Something", "value", 0, nil))},
"Time": {
mp(time.Date(1938, time.January, 1, 1, 1, 1, 1, time.UTC)),
mp(time.Time{}),
},
}
So(ds.Put(&pm), ShouldBeNil)
rslt := datastore.PropertyMap{}
rslt.SetMeta("key", ds.KeyForObj(pm))
So(ds.Get(&rslt), ShouldBeNil)
So(pm["Time"][0].Value(), ShouldResemble, rslt["Time"][0].Value())
q := datastore.NewQuery("Something").Project("Time")
all := []datastore.PropertyMap{}
So(ds.GetAll(q, &all), ShouldBeNil)
So(len(all), ShouldEqual, 2)
prop := all[0]["Time"][0]
So(prop.Type(), ShouldEqual, datastore.PTInt)
tval, err := prop.Project(datastore.PTTime)
So(err, ShouldBeNil)
So(tval, ShouldResemble, time.Time{})
tval, err = all[1]["Time"][0].Project(datastore.PTTime)
So(err, ShouldBeNil)
So(tval, ShouldResemble, pm["Time"][0].Value())
ent := datastore.PropertyMap{
"$key": {mpNI(ds.MakeKey("Something", "value"))},
}
So(ds.Get(&ent), ShouldBeNil)
So(ent["Time"], ShouldResemble, pm["Time"])
})
Convey("memcache: Set (nil) is the same as Set ([]byte{})", func() {
So(mc.Set(mc.NewItem("bob")), ShouldBeNil) // normally would panic because Value is nil
bob, err := mc.Get("bob")
So(err, ShouldBeNil)
So(bob.Value(), ShouldResemble, []byte{})
})
})
}
func TestQueryExecution(t *testing.T) {
t.Parallel()
Convey("Test query execution", t, func() {
c, err := info.Get(Use(context.Background())).Namespace("ns")
if err != nil {
panic(err)
}
data := ds.Get(c)
testing := data.Raw().Testable()
for _, tc := range queryExecutionTests {
Convey(tc.name, func() {
for i, stage := range tc.test {
// outside of Convey, since these must always happen
testing.CatchupIndexes()
testing.AddIndexes(stage.addIdxs...)
if err := data.PutMulti(stage.putEnts); err != nil {
// prevent Convey from thinking this assertion should show up in
// every test loop.
panic(err)
}
if err := data.DeleteMulti(stage.delEnts); err != nil {
panic(err)
}
Convey(fmt.Sprintf("stage %d", i), func() {
for j, expect := range stage.expect {
runner := func(f func(ic context.Context) error, _ *ds.TransactionOptions) error {
return f(c)
}
if expect.inTxn {
runner = data.RunInTransaction
}
if expect.keys != nil {
runner(func(c context.Context) error {
data := ds.Get(c)
Convey(fmt.Sprintf("expect %d (keys)", j), func() {
rslt := []ds.Key(nil)
So(data.GetAll(expect.q, &rslt), ShouldBeNil)
So(len(rslt), ShouldEqual, len(expect.keys))
for i, r := range rslt {
So(r, ShouldResemble, expect.keys[i])
}
})
return nil
}, &ds.TransactionOptions{XG: true})
}
if expect.get != nil {
Convey(fmt.Sprintf("expect %d (data)", j), func() {
runner(func(c context.Context) error {
rslt := []ds.PropertyMap(nil)
So(data.GetAll(expect.q, &rslt), ShouldBeNil)
So(len(rslt), ShouldEqual, len(expect.get))
for i, r := range rslt {
So(r, ShouldResemble, expect.get[i])
}
return nil
}, &ds.TransactionOptions{XG: true})
})
}
}
for j, fn := range stage.extraFns {
Convey(fmt.Sprintf("extraFn %d", j), func() {
fn(c)
})
}
})
}
})
}
})
}
"When", 946688461000000),
pmap("$key", key("Kind", 3), NEXT,
"When", 996688461000000),
}},
// Original (complex) types are retained when getting the full value.
{q: nq("Kind").Order("When"), get: []ds.PropertyMap{
stage1Data[1],
stage1Data[3],
stage1Data[2],
}},
},
extraFns: []func(context.Context){
func(c context.Context) {
data := ds.Get(c)
curs := ds.Cursor(nil)
q := nq("").Filter("__key__ >", key("Kind", 2))
err := data.Run(q, func(pm ds.PropertyMap, gc ds.CursorCB) bool {
So(pm, ShouldResemble, pmap(
"$key", key("__entity_group__", 1, key("Kind", 2)), NEXT,
"__version__", 1))
err := error(nil)
curs, err = gc()
So(err, ShouldBeNil)
return false
})
So(err, ShouldBeNil)
func TestQueryExecution(t *testing.T) {
t.Parallel()
Convey("Test query execution", t, func() {
c, err := info.Get(Use(context.Background())).Namespace("ns")
if err != nil {
panic(err)
}
So(info.Get(c).FullyQualifiedAppID(), ShouldEqual, "dev~app")
So(info.Get(c).GetNamespace(), ShouldEqual, "ns")
data := ds.Get(c)
testing := data.Testable()
for _, tc := range queryExecutionTests {
Convey(tc.name, func() {
for i, stage := range tc.test {
// outside of Convey, since these must always happen
testing.CatchupIndexes()
testing.AddIndexes(stage.addIdxs...)
if err := data.PutMulti(stage.putEnts); err != nil {
// prevent Convey from thinking this assertion should show up in
// every test loop.
panic(err)
}
if err := data.DeleteMulti(stage.delEnts); err != nil {
panic(err)
}
Convey(fmt.Sprintf("stage %d", i), func() {
for j, expect := range stage.expect {
runner := func(f func(ic context.Context) error, _ *ds.TransactionOptions) error {
return f(c)
}
if expect.inTxn {
runner = data.RunInTransaction
}
if expect.count == 0 {
if len(expect.keys) > 0 {
expect.count = len(expect.keys)
} else {
expect.count = len(expect.get)
}
}
if expect.keys != nil {
Convey(fmt.Sprintf("expect %d (keys)", j), func() {
err := runner(func(c context.Context) error {
data := ds.Get(c)
count, err := data.Count(expect.q)
So(err, ShouldBeNil)
So(count, ShouldEqual, expect.count)
rslt := []*ds.Key(nil)
So(data.GetAll(expect.q, &rslt), ShouldBeNil)
So(len(rslt), ShouldEqual, len(expect.keys))
for i, r := range rslt {
So(r, ShouldResemble, expect.keys[i])
}
return nil
}, &ds.TransactionOptions{XG: true})
So(err, ShouldBeNil)
})
}
if expect.get != nil {
Convey(fmt.Sprintf("expect %d (data)", j), func() {
err := runner(func(c context.Context) error {
data := ds.Get(c)
count, err := data.Count(expect.q)
So(err, ShouldBeNil)
So(count, ShouldEqual, expect.count)
rslt := []ds.PropertyMap(nil)
So(data.GetAll(expect.q, &rslt), ShouldBeNil)
So(len(rslt), ShouldEqual, len(expect.get))
for i, r := range rslt {
So(r, ShouldResembleV, expect.get[i])
}
return nil
}, &ds.TransactionOptions{XG: true})
So(err, ShouldBeNil)
})
}
}
for j, fn := range stage.extraFns {
Convey(fmt.Sprintf("extraFn %d", j), func() {
fn(c)
})
}
})
}
})
}
})
Convey("Test AutoIndex", t, func() {
c, err := info.Get(Use(context.Background())).Namespace("ns")
if err != nil {
panic(err)
}
data := ds.Get(c)
testing := data.Testable()
testing.Consistent(true)
So(data.Put(pmap("$key", key("Kind", 1), Next,
"Val", 1, 2, 3, Next,
"Extra", "hello",
)), ShouldBeNil)
So(data.Put(pmap("$key", key("Kind", 2), Next,
"Val", 2, 3, 9, Next,
"Extra", "ace", "hello", "there",
)), ShouldBeNil)
q := nq("Kind").Gt("Val", 2).Order("Val", "Extra")
count, err := data.Count(q)
So(err, ShouldErrLike, "Insufficient indexes")
testing.AutoIndex(true)
count, err = data.Count(q)
So(err, ShouldBeNil)
So(count, ShouldEqual, 2)
})
}
func TestContextAccess(t *testing.T) {
t.Parallel()
// p is a function which recovers an error and then immediately panics with
// the contained string. It's defer'd in each test so that we can use the
// ShouldPanicWith assertion (which does an == comparison and not
// a reflect.DeepEquals comparison).
p := func() { panic(recover().(error).Error()) }
Convey("Context Access", t, func() {
c := context.Background()
Convey("blank", func() {
So(dsS.GetRaw(c), ShouldBeNil)
So(mcS.GetRaw(c), ShouldBeNil)
So(tqS.GetRaw(c), ShouldBeNil)
So(infoS.Get(c), ShouldBeNil)
})
// needed for everything else
c = infoS.Set(c, Info())
Convey("Info", func() {
So(infoS.Get(c), ShouldNotBeNil)
So(func() {
defer p()
infoS.Get(c).Datacenter()
}, ShouldPanicWith, "dummy: method Info.Datacenter is not implemented")
})
Convey("Datastore", func() {
c = dsS.SetRaw(c, Datastore())
So(dsS.Get(c), ShouldNotBeNil)
So(func() {
defer p()
_, _ = dsS.Get(c).DecodeCursor("wut")
}, ShouldPanicWith, "dummy: method Datastore.DecodeCursor is not implemented")
})
Convey("Memcache", func() {
c = mcS.SetRaw(c, Memcache())
So(mcS.Get(c), ShouldNotBeNil)
So(func() {
defer p()
_ = mcS.Get(c).Add(nil)
}, ShouldPanicWith, "dummy: method Memcache.AddMulti is not implemented")
})
Convey("TaskQueue", func() {
c = tqS.SetRaw(c, TaskQueue())
So(tqS.Get(c), ShouldNotBeNil)
So(func() {
defer p()
_ = tqS.Get(c).Purge("")
}, ShouldPanicWith, "dummy: method TaskQueue.Purge is not implemented")
})
Convey("User", func() {
c = userS.Set(c, User())
So(userS.Get(c), ShouldNotBeNil)
So(func() {
defer p()
_ = userS.Get(c).IsAdmin()
}, ShouldPanicWith, "dummy: method User.IsAdmin is not implemented")
})
Convey("Mail", func() {
c = mailS.Set(c, Mail())
So(mailS.Get(c), ShouldNotBeNil)
So(func() {
defer p()
_ = mailS.Get(c).Send(nil)
}, ShouldPanicWith, "dummy: method Mail.Send is not implemented")
})
})
}
func TestCount(t *testing.T) {
t.Parallel()
Convey("Test Count filter", t, func() {
c, fb := featureBreaker.FilterRDS(memory.Use(context.Background()), nil)
c, ctr := FilterRDS(c)
So(c, ShouldNotBeNil)
So(ctr, ShouldNotBeNil)
ds := datastore.Get(c)
vals := []datastore.PropertyMap{{
"Val": {datastore.MkProperty(100)},
"$key": {datastore.MkPropertyNI(ds.NewKey("Kind", "", 1, nil))},
}}
Convey("Calling a ds function should reflect in counter", func() {
So(ds.PutMulti(vals), ShouldBeNil)
So(ctr.PutMulti.Successes(), ShouldEqual, 1)
Convey("effects are cumulative", func() {
So(ds.PutMulti(vals), ShouldBeNil)
So(ctr.PutMulti.Successes(), ShouldEqual, 2)
Convey("even within transactions", func() {
die(ds.RunInTransaction(func(c context.Context) error {
ds := datastore.Get(c)
So(ds.PutMulti(append(vals, vals[0])), ShouldBeNil)
return nil
}, nil))
})
})
})
Convey("errors count against errors", func() {
fb.BreakFeatures(nil, "GetMulti")
So(ds.GetMulti(vals), ShouldErrLike, `"GetMulti" is broken`)
So(ctr.GetMulti.Errors(), ShouldEqual, 1)
fb.UnbreakFeatures("GetMulti")
So(ds.PutMulti(vals), ShouldBeNil)
die(ds.GetMulti(vals))
So(ctr.GetMulti.Errors(), ShouldEqual, 1)
So(ctr.GetMulti.Successes(), ShouldEqual, 1)
So(ctr.GetMulti.Total(), ShouldEqual, 2)
})
})
Convey("works for memcache", t, func() {
c, ctr := FilterMC(memory.Use(context.Background()))
So(c, ShouldNotBeNil)
So(ctr, ShouldNotBeNil)
mc := memcache.Get(c)
die(mc.Set(mc.NewItem("hello").SetValue([]byte("sup"))))
_, err := mc.Get("Wat")
So(err, ShouldNotBeNil)
_, err = mc.Get("hello")
die(err)
So(ctr.SetMulti, shouldHaveSuccessesAndErrors, 1, 0)
So(ctr.GetMulti, shouldHaveSuccessesAndErrors, 2, 0)
So(ctr.NewItem, shouldHaveSuccessesAndErrors, 3, 0)
})
Convey("works for taskqueue", t, func() {
c, ctr := FilterTQ(memory.Use(context.Background()))
So(c, ShouldNotBeNil)
So(ctr, ShouldNotBeNil)
tq := taskqueue.Get(c)
die(tq.Add(&taskqueue.Task{Name: "wat"}, ""))
So(tq.Add(&taskqueue.Task{Name: "wat"}, "DNE_QUEUE"),
ShouldErrLike, "UNKNOWN_QUEUE")
So(ctr.AddMulti, shouldHaveSuccessesAndErrors, 1, 1)
})
Convey("works for global info", t, func() {
c, fb := featureBreaker.FilterGI(memory.Use(context.Background()), nil)
c, ctr := FilterGI(c)
So(c, ShouldNotBeNil)
So(ctr, ShouldNotBeNil)
gi := info.Get(c)
_, err := gi.Namespace("foo")
die(err)
fb.BreakFeatures(nil, "Namespace")
_, err = gi.Namespace("boom")
So(err, ShouldErrLike, `"Namespace" is broken`)
So(ctr.Namespace, shouldHaveSuccessesAndErrors, 1, 1)
})
Convey("works for user", t, func() {
c, fb := featureBreaker.FilterUser(memory.Use(context.Background()), nil)
c, ctr := FilterUser(c)
So(c, ShouldNotBeNil)
So(ctr, ShouldNotBeNil)
u := user.Get(c)
_, err := u.CurrentOAuth("foo")
die(err)
fb.BreakFeatures(nil, "CurrentOAuth")
_, err = u.CurrentOAuth("foo")
So(err, ShouldErrLike, `"CurrentOAuth" is broken`)
So(ctr.CurrentOAuth, shouldHaveSuccessesAndErrors, 1, 1)
})
Convey("works for mail", t, func() {
c, fb := featureBreaker.FilterMail(memory.Use(context.Background()), nil)
c, ctr := FilterMail(c)
So(c, ShouldNotBeNil)
So(ctr, ShouldNotBeNil)
m := mail.Get(c)
err := m.Send(&mail.Message{
Sender: "*****@*****.**",
To: []string{"*****@*****.**"},
Body: "hi",
})
die(err)
fb.BreakFeatures(nil, "Send")
err = m.Send(&mail.Message{
Sender: "*****@*****.**",
To: []string{"*****@*****.**"},
Body: "hi",
})
So(err, ShouldErrLike, `"Send" is broken`)
So(ctr.Send, shouldHaveSuccessesAndErrors, 1, 1)
})
}