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mux_test.go
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mux_test.go
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// Copyright ©2018 The go-hep Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mux // import "go-hep.org/x/hep/xrootd/internal/mux"
import (
"fmt"
"reflect"
"testing"
"go-hep.org/x/hep/xrootd/xrdproto"
)
func TestMux_Claim(t *testing.T) {
m := New()
defer m.Close()
claimedIds := map[xrdproto.StreamID]bool{}
for i := 0; i < streamIDPoolSize; i++ {
id, channel, err := m.Claim()
if err != nil {
t.Fatalf("could not Claim streamID: %v", err)
}
if channel == nil {
t.Fatal("channel should not be nil")
}
if claimedIds[id] {
t.Fatalf("should not claim id %s, which was already claimed", id)
}
claimedIds[id] = true
}
for id := range claimedIds {
m.Unclaim(id)
}
}
func TestMux_Claim_AfterUnclaim(t *testing.T) {
m := New()
defer m.Close()
claimedIds := map[xrdproto.StreamID]bool{}
for i := 0; i < streamIDPoolSize; i++ {
id, _, _ := m.Claim()
claimedIds[id] = true
}
wantID := xrdproto.StreamID{13, 14}
m.Unclaim(wantID)
gotID, channel, err := m.Claim()
if err != nil {
t.Fatalf("could not Claim streamID: %v", err)
}
if channel == nil {
t.Fatal("channel should not be nil")
}
if !reflect.DeepEqual(gotID, wantID) {
t.Fatalf("invalid claim\ngot = %v\nwant = %v", gotID, wantID)
}
for id := range claimedIds {
m.Unclaim(id)
}
}
func TestMux_ClaimWithID_WhenIDIsFree(t *testing.T) {
m := New()
defer m.Close()
streamID := xrdproto.StreamID{13, 14}
channel, err := m.ClaimWithID(streamID)
if err != nil {
t.Fatalf("could not Claim streamID: %v", err)
}
if channel == nil {
t.Fatal("channel should not be nil")
}
m.Unclaim(streamID)
}
func TestMux_ClaimWithID_WhenIDIsTakenByClaimWithID(t *testing.T) {
m := New()
defer m.Close()
streamID := xrdproto.StreamID{13, 14}
_, err := m.ClaimWithID(streamID)
if err != nil {
t.Fatalf("could not claim stream %v: %+v", streamID, err)
}
_, err = m.ClaimWithID(streamID)
if err == nil {
t.Fatal("should not be able to ClaimWithID when that id is already claimed")
}
m.Unclaim(streamID)
}
func TestMux_ClaimWithID_WhenIDIsTakenByClaim(t *testing.T) {
m := New()
defer m.Close()
id, _, _ := m.Claim()
_, err := m.ClaimWithID(id)
if err == nil {
t.Fatal("should not be able to ClaimWithID when that id is already claimed")
}
m.Unclaim(id)
}
func TestMux_Claim_WhenIDIsTakenByClaimWithID(t *testing.T) {
m := New()
defer m.Close()
takenID := xrdproto.StreamID{0, 0}
_, err := m.ClaimWithID(takenID)
if err != nil {
t.Fatalf("could not claim stream %v: %+v", takenID, err)
}
id, channel, err := m.Claim()
if err != nil {
t.Fatalf("could not Claim streamID: %v", err)
}
if channel == nil {
t.Fatal("channel should not be nil")
}
if reflect.DeepEqual(id, takenID) {
t.Fatalf("invalid claim: id %v was already taken", takenID)
}
m.Unclaim(takenID)
m.Unclaim(id)
}
func TestMux_SendData_WhenIDIsTaken(t *testing.T) {
m := New()
defer m.Close()
takenID := xrdproto.StreamID{0, 0}
want := ServerResponse{}
var got ServerResponse
errch := make(chan error)
channel, _ := m.ClaimWithID(takenID)
go func() {
err := m.SendData(takenID, want)
if err != nil {
errch <- fmt.Errorf("could not SendData: %w", err)
}
}()
select {
case got = <-channel:
case err := <-errch:
if err != nil {
t.Fatalf("error: %+v", err)
}
}
if !reflect.DeepEqual(got, want) {
t.Fatalf("invalid data\ngot = %v\nwant = %v", got, want)
}
m.Unclaim(takenID)
}
func TestMux_SendData_WhenIDIsNotTaken(t *testing.T) {
m := New()
defer m.Close()
notTakenID := xrdproto.StreamID{0, 0}
err := m.SendData(notTakenID, ServerResponse{})
if err == nil {
t.Fatal("should not be able to SenData when id is unclaimed")
}
}
func TestMux_Close_WhenAlreadyClosed(t *testing.T) {
m := New()
m.Close()
m.Close()
}
func TestMux_Unclaim_WhenNotClaimed(t *testing.T) {
m := New()
defer m.Close()
m.Unclaim(xrdproto.StreamID{0, 0})
}
func TestMux_Claim_WhenClosed(t *testing.T) {
m := New()
m.Close()
_, _, err := m.Claim()
if err == nil {
t.Fatal("should not be able to Claim when mux is closed")
}
}
func TestMux_ClaimWithID_WhenClosed(t *testing.T) {
m := New()
m.Close()
_, err := m.ClaimWithID(xrdproto.StreamID{0, 0})
if err == nil {
t.Fatal("should not be able to ClaimWithID when mux is closed")
}
}
func BenchmarkMux_Claim(b *testing.B) {
m := New()
defer m.Close()
b.ResetTimer()
for i := 0; i < b.N; i++ {
id, _, err := m.Claim()
if err != nil {
b.Error(err)
}
m.Unclaim(id)
}
}
func BenchmarkMux_SendData(b *testing.B) {
m := New()
defer m.Close()
id, ch, _ := m.Claim()
done := make(chan struct{})
response := ServerResponse{Data: []byte{0, 1, 2, 3, 4, 5}}
go func() {
for {
select {
case <-ch:
case <-done:
return
}
}
}()
b.ResetTimer()
for i := 0; i < b.N; i++ {
err := m.SendData(id, response)
if err != nil {
b.Error(err)
}
}
m.Unclaim(id)
close(done)
}