func TestDeleteMemcacheFail(t *testing.T) {
c, closeFunc := NewContext(t)
defer closeFunc()
type testEntity struct {
Val int
}
key := datastore.NewKey(c, "Entity", "", 1, nil)
keys := []*datastore.Key{key}
entities := make([]testEntity, 1)
entities[0].Val = 43
if _, err := nds.PutMulti(c, keys, entities); err != nil {
t.Fatal(err)
}
nds.SetMemcacheSetMulti(func(c context.Context,
items []*memcache.Item) error {
return errors.New("expected error")
})
defer func() {
nds.SetMemcacheSetMulti(memcache.SetMulti)
}()
if err := nds.DeleteMulti(c, keys); err == nil {
t.Fatal("expected DeleteMulti error")
}
}
func TestPutMultiLockFailure(t *testing.T) {
c, closeFunc := NewContext(t)
defer closeFunc()
type testEntity struct {
IntVal int
}
nds.SetMemcacheSetMulti(func(c context.Context,
items []*memcache.Item) error {
return errors.New("expected error")
})
defer func() {
nds.SetMemcacheSetMulti(memcache.SetMulti)
}()
keys := []*datastore.Key{datastore.NewKey(c, "Test", "", 1, nil)}
vals := []testEntity{testEntity{42}}
if _, err := nds.PutMulti(c, keys, vals); err == nil {
t.Fatal("expected nds.PutMulti error")
}
}
func TestPutGetDelete(t *testing.T) {
c, closeFunc := NewContext(t)
defer closeFunc()
type testEntity struct {
IntVal int
}
// Check we set memcahce, put datastore and delete memcache.
seq := make(chan string, 3)
nds.SetMemcacheSetMulti(func(c context.Context,
items []*memcache.Item) error {
seq <- "memcache.SetMulti"
return memcache.SetMulti(c, items)
})
nds.SetDatastorePutMulti(func(c context.Context,
keys []*datastore.Key, vals interface{}) ([]*datastore.Key, error) {
seq <- "datastore.PutMulti"
return datastore.PutMulti(c, keys, vals)
})
nds.SetMemcacheDeleteMulti(func(c context.Context,
keys []string) error {
seq <- "memcache.DeleteMulti"
close(seq)
return memcache.DeleteMulti(c, keys)
})
incompleteKey := datastore.NewIncompleteKey(c, "Entity", nil)
key, err := nds.Put(c, incompleteKey, &testEntity{43})
if err != nil {
t.Fatal(err)
}
nds.SetMemcacheSetMulti(memcache.SetMulti)
nds.SetDatastorePutMulti(datastore.PutMulti)
nds.SetMemcacheDeleteMulti(memcache.DeleteMulti)
if s := <-seq; s != "memcache.SetMulti" {
t.Fatal("memcache.SetMulti not", s)
}
if s := <-seq; s != "datastore.PutMulti" {
t.Fatal("datastore.PutMulti not", s)
}
if s := <-seq; s != "memcache.DeleteMulti" {
t.Fatal("memcache.DeleteMulti not", s)
}
// Check chan is closed.
<-seq
if key.Incomplete() {
t.Fatal("Key is incomplete")
}
te := &testEntity{}
if err := nds.Get(c, key, te); err != nil {
t.Fatal(err)
}
if te.IntVal != 43 {
t.Fatal("te.Val != 43", te.IntVal)
}
// Get from cache.
te = &testEntity{}
if err := nds.Get(c, key, te); err != nil {
t.Fatal(err)
}
if te.IntVal != 43 {
t.Fatal("te.Val != 43", te.IntVal)
}
// Change value.
if _, err := nds.Put(c, key, &testEntity{64}); err != nil {
t.Fatal(err)
}
// Get from cache.
te = &testEntity{}
if err := nds.Get(c, key, te); err != nil {
t.Fatal(err)
}
if te.IntVal != 64 {
t.Fatal("te.Val != 64", te.IntVal)
}
if err := nds.Delete(c, key); err != nil {
t.Fatal(err)
}
if err := nds.Get(c, key, &testEntity{}); err != datastore.ErrNoSuchEntity {
t.Fatal("expected datastore.ErrNoSuchEntity")
}
}