138 lines
2.5 KiB
Go
138 lines
2.5 KiB
Go
package elect_test
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import (
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"net"
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"net/http"
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"testing"
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"time"
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"github.com/dchest/uniuri"
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"github.com/gopatchy/elect"
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"github.com/gopatchy/proxy"
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"github.com/samber/lo"
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"github.com/stretchr/testify/require"
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)
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type TestServer struct {
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Candidate *elect.Candidate
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listener *net.TCPListener
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srv *http.Server
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}
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type TestSystem struct {
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signingKey string
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servers []*TestServer
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voters []*elect.Voter
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proxies []*proxy.Proxy
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}
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type Waiter struct {
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chans []<-chan bool
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}
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func NewTestServer(t *testing.T, numVoters int, signingKey string) *TestServer {
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ts := &TestServer{
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Candidate: elect.NewCandidate(numVoters, signingKey),
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listener: lo.Must(net.ListenTCP("tcp", nil)),
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}
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ts.srv = &http.Server{
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Handler: ts.Candidate,
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ReadHeaderTimeout: 30 * time.Second,
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}
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go func() {
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err := ts.srv.Serve(ts.listener)
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require.ErrorIs(t, err, http.ErrServerClosed)
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}()
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return ts
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}
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func (ts *TestServer) Stop() {
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ts.srv.Close()
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ts.Candidate.Stop()
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}
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func (ts *TestServer) Addr() *net.TCPAddr {
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return ts.listener.Addr().(*net.TCPAddr)
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}
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func NewTestSystem(t *testing.T, numCandidates, numVoters int) *TestSystem {
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ts := &TestSystem{
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signingKey: uniuri.New(),
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}
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for i := 0; i < numCandidates; i++ {
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ts.servers = append(ts.servers, NewTestServer(t, numVoters, ts.signingKey))
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}
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for i := 0; i < numVoters; i++ {
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ts.proxies = append(ts.proxies, proxy.NewProxy(t, ts.Server(0).Addr()))
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ts.voters = append(ts.voters, elect.NewVoter(ts.Proxy(i).HTTP(), ts.signingKey))
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}
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return ts
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}
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func (ts *TestSystem) Stop() {
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for _, s := range ts.servers {
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s.Stop()
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}
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for _, v := range ts.voters {
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v.Stop()
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}
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for _, p := range ts.proxies {
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p.Close()
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}
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}
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func (ts *TestSystem) SetServer(server int) {
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for _, p := range ts.proxies {
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p.SetBackend(ts.Server(server).Addr())
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}
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}
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func (ts *TestSystem) SetServerForVoter(server, voter int) {
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ts.Proxy(voter).SetBackend(ts.Server(server).Addr())
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}
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func (ts *TestSystem) Candidate(i int) *elect.Candidate {
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return ts.servers[i].Candidate
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}
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func (ts *TestSystem) Proxy(i int) *proxy.Proxy {
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return ts.proxies[i]
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}
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func (ts *TestSystem) Server(i int) *TestServer {
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return ts.servers[i]
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}
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func (ts *TestSystem) Voter(i int) *elect.Voter {
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return ts.voters[i]
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}
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func NewWaiter() *Waiter {
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return &Waiter{}
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}
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func (w *Waiter) Wait() {
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for _, ch := range w.chans {
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<-ch
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}
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}
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func (w *Waiter) Async(cb func()) {
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ch := make(chan bool)
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w.chans = append(w.chans, ch)
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go func() {
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defer close(ch)
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cb()
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}()
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}
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