// ContextMiddleware creates a new go.net/context and
// injects into the current goji context.
func ContextMiddleware(c *web.C, h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
var ctx = context.Background()
ctx = datastore.NewContext(ctx, database.NewDatastore(db))
ctx = blobstore.NewContext(ctx, database.NewBlobstore(db))
ctx = pool.NewContext(ctx, workers)
ctx = director.NewContext(ctx, worker)
ctx = pubsub.NewContext(ctx, pub)
// add the context to the goji web context
webcontext.Set(c, ctx)
h.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
func TestDirector(t *testing.T) {
g := goblin.Goblin(t)
g.Describe("Director", func() {
g.It("Should mark work as pending", func() {
d := New()
d.markPending(&worker.Work{})
d.markPending(&worker.Work{})
g.Assert(len(d.GetPending())).Equal(2)
})
g.It("Should mark work as started", func() {
d := New()
w1 := worker.Work{}
w2 := worker.Work{}
d.markPending(&w1)
d.markPending(&w2)
g.Assert(len(d.GetPending())).Equal(2)
d.markStarted(&w1, &mockWorker{})
g.Assert(len(d.GetStarted())).Equal(1)
g.Assert(len(d.GetPending())).Equal(1)
d.markStarted(&w2, &mockWorker{})
g.Assert(len(d.GetStarted())).Equal(2)
g.Assert(len(d.GetPending())).Equal(0)
})
g.It("Should mark work as complete", func() {
d := New()
w1 := worker.Work{}
w2 := worker.Work{}
d.markStarted(&w1, &mockWorker{})
d.markStarted(&w2, &mockWorker{})
g.Assert(len(d.GetStarted())).Equal(2)
d.markComplete(&w1)
g.Assert(len(d.GetStarted())).Equal(1)
d.markComplete(&w2)
g.Assert(len(d.GetStarted())).Equal(0)
})
g.It("Should get work assignments", func() {
d := New()
w1 := worker.Work{}
w2 := worker.Work{}
d.markStarted(&w1, &mockWorker{})
d.markStarted(&w2, &mockWorker{})
g.Assert(len(d.GetAssignemnts())).Equal(2)
})
g.It("Should recover from a panic", func() {
d := New()
d.Do(nil, nil)
g.Assert(true).Equal(true)
})
g.It("Should distribute work to worker", func() {
work := &worker.Work{}
workr := &mockWorker{}
c := context.Background()
p := pool.New()
p.Allocate(workr)
c = pool.NewContext(c, p)
d := New()
d.do(c, work)
g.Assert(workr.work).Equal(work) // verify mock worker gets work
})
g.It("Should add director to context", func() {
d := New()
c := context.Background()
c = NewContext(c, d)
g.Assert(worker.FromContext(c)).Equal(d)
})
})
}