func TestLoadBatchFromDatastore(t *testing.T) {
gaeCtx, _ := aetest.NewContext(nil)
defer gaeCtx.Close()
Convey("Given I have a load batch from datastore transformer", t, func() {
riversCtx := rivers.NewContext()
loadBatchProcessor := appx.NewStep(riversCtx).LoadBatchFromDatastore(gaeCtx)
Convey("And I have a few entities in datastore", func() {
user1 := NewUser(User{
Name: "Borges",
Email: "*****@*****.**",
SSN: "123123123",
})
user2 := NewUser(User{
Name: "Borges",
Email: "*****@*****.**",
SSN: "123123123",
})
err := appx.NewKeyResolver(gaeCtx).Resolve(user1)
So(err, ShouldBeNil)
err = appx.NewKeyResolver(gaeCtx).Resolve(user2)
So(err, ShouldBeNil)
_, err = datastore.Put(gaeCtx, user1.Key(), user1)
So(err, ShouldBeNil)
_, err = datastore.Put(gaeCtx, user2.Key(), user2)
So(err, ShouldBeNil)
Convey("When I transform the incoming batch", func() {
userFromDatastore1 := NewUser(User{Name: user1.Name})
userFromDatastore2 := NewUser(User{Name: user2.Name})
appx.NewKeyResolver(gaeCtx).Resolve(userFromDatastore1)
appx.NewKeyResolver(gaeCtx).Resolve(userFromDatastore2)
batch := &appx.DatastoreBatch{
Size: 2,
Keys: []*datastore.Key{
userFromDatastore1.Key(),
userFromDatastore2.Key(),
},
Items: []appx.Entity{
userFromDatastore1,
userFromDatastore2,
},
}
loadBatchProcessor(batch)
Convey("And entities are loaded from datastore", func() {
So(userFromDatastore1, ShouldResemble, user1)
So(userFromDatastore2, ShouldResemble, user2)
})
})
})
})
}
func TestLoadBatchFromCache(t *testing.T) {
gaeCtx, _ := aetest.NewContext(nil)
defer gaeCtx.Close()
Convey("Given I have a load batch from cache transformer", t, func() {
riversCtx := rivers.NewContext()
loadBatchProcessor := appx.NewStep(riversCtx).LoadBatchFromCache(gaeCtx)
Convey("And I have a few entities in the cache", func() {
user1 := NewUser(User{
Name: "Borges",
Email: "*****@*****.**",
SSN: "123123123",
})
user2 := NewUser(User{
Name: "Diego",
Email: "*****@*****.**",
SSN: "321321",
})
appx.NewKeyResolver(gaeCtx).Resolve(user1)
appx.NewKeyResolver(gaeCtx).Resolve(user2)
memcache.JSON.Set(gaeCtx, &memcache.Item{
Key: user1.CacheID(),
Object: appx.CachedEntity{
Entity: user1,
Key: user1.Key(),
},
})
memcache.JSON.Set(gaeCtx, &memcache.Item{
Key: user2.CacheID(),
Object: appx.CachedEntity{
Entity: user2,
Key: user2.Key(),
},
})
Convey("When I transform the incoming batch", func() {
notCachedUser := NewUser(User{
Name: "not cached",
SSN: "notcached",
})
userFromCache1 := NewUser(User{Name: user1.Name})
userFromCache2 := NewUser(User{Name: user2.Name})
batchItems := make(map[string]*appx.CachedEntity)
batchItems[user1.CacheID()] = &appx.CachedEntity{
Entity: userFromCache1,
}
batchItems[user2.CacheID()] = &appx.CachedEntity{
Entity: userFromCache2,
}
batchItems[notCachedUser.CacheID()] = &appx.CachedEntity{
Entity: notCachedUser,
}
batch := &appx.MemcacheLoadBatch{
Keys: []string{user1.CacheID(), user2.CacheID()},
Items: batchItems,
}
in, out := stream.New(1)
loadBatchProcessor(batch, stream.NewEmitter(rivers.NewContext(), out))
close(out)
Convey("Then cache misses are sent downstream", func() {
So(in.ReadAll(), ShouldResemble, []stream.T{notCachedUser})
Convey("And entities are loaded from cache", func() {
So(userFromCache1, ShouldResemble, user1)
So(userFromCache2, ShouldResemble, user2)
})
})
})
})
})
}
func TestQueryEntityFromDatastore(t *testing.T) {
gaeCtx, _ := aetest.NewContext(nil)
defer gaeCtx.Close()
user := &User{
Name: "Borges",
Email: "*****@*****.**",
SSN: "123123123",
keySpec: &appx.KeySpec{
Kind: "Users",
StringID: "borges",
},
}
parentKey := datastore.NewKey(gaeCtx, "Parent", "parent id", 0, nil)
user.SetParentKey(parentKey)
Convey("Given I have a query entity from datastore transformer", t, func() {
riversCtx := rivers.NewContext()
queryProcessor := appx.NewStep(riversCtx).QueryEntityFromDatastore(gaeCtx)
Convey("When I transform the inbound stream with non existent entity", func() {
nonExistentUser := &User{
Email: "*****@*****.**",
keySpec: &appx.KeySpec{
Kind: "Users",
},
}
runQuery := func() {
queryProcessor(nonExistentUser)
}
Convey("Then query processor panics", func() {
So(runQuery, ShouldPanic)
})
})
Convey("And I have an entity in datastore", func() {
err := appx.NewKeyResolver(gaeCtx).Resolve(user)
So(err, ShouldBeNil)
_, err = datastore.Put(gaeCtx, user.Key(), user)
So(err, ShouldBeNil)
// Give datastore some time so that the created entity is available to be queried
time.Sleep(200 * time.Millisecond)
Convey("When I transform the inbound stream", func() {
userFromDatastore := &User{
Email: "*****@*****.**",
keySpec: &appx.KeySpec{
Kind: "Users",
},
}
queryProcessor(userFromDatastore)
Convey("And queryable entities are loaded from datastore", func() {
So(userFromDatastore.Name, ShouldEqual, user.Name)
So(userFromDatastore.Email, ShouldEqual, user.Email)
So(userFromDatastore.Key(), ShouldResemble, user.Key())
So(userFromDatastore.ParentKey(), ShouldResemble, user.ParentKey())
})
})
})
})
}