76 lines
1.8 KiB
Go
76 lines
1.8 KiB
Go
package main
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import (
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"errors"
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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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)
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func TestShutdownServerForceClosesAfterGracefulTimeout(t *testing.T) {
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handlerStarted := make(chan struct{})
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releaseHandler := make(chan struct{})
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server := &http.Server{
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Handler: http.HandlerFunc(func(http.ResponseWriter, *http.Request) {
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close(handlerStarted)
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<-releaseHandler
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}),
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ReadHeaderTimeout: time.Second,
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}
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listener, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatalf("net.Listen() error = %v", err)
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}
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serverErrors := make(chan error, 1)
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go func() {
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serverErrors <- server.Serve(listener)
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}()
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requestFinished := make(chan struct{})
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go func() {
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defer close(requestFinished)
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client := http.Client{Timeout: time.Second}
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response, err := client.Get("http://" + listener.Addr().String())
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if err == nil {
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_ = response.Body.Close()
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}
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}()
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select {
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case <-handlerStarted:
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case <-time.After(time.Second):
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t.Fatal("handler did not start")
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}
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err = shutdownServer(server, serverErrors, 10*time.Millisecond)
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if err == nil {
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t.Fatal("shutdownServer() error = nil")
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}
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close(releaseHandler)
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select {
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case <-requestFinished:
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case <-time.After(time.Second):
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t.Fatal("request did not finish after force close")
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}
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connection, dialErr := net.DialTimeout(
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"tcp",
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listener.Addr().String(),
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100*time.Millisecond,
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)
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if dialErr == nil {
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_ = connection.Close()
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t.Fatal("listener still accepted connections after force close")
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}
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}
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func TestShutdownServerAcceptsNormalServerClose(t *testing.T) {
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serverErrors := make(chan error, 1)
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serverErrors <- http.ErrServerClosed
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server := &http.Server{}
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if err := shutdownServer(server, serverErrors, time.Second); err != nil &&
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!errors.Is(err, http.ErrServerClosed) {
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t.Fatalf("shutdownServer() error = %v", err)
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}
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}
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