Files
routewatch/internal/server/server_test.go
T
clawbot b4dee48401
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Exit with status 1 when the web server cannot listen (closes #73)
`Server.Start` opened its port inside a goroutine and returned nil at once, so a port already in use was only logged and the daemon kept running with no web server. It now opens the listener before returning and returns that error; serving runs in the background on the open listener. `CLIEntry` turns an error from `Run` into an fx shutdown with exit status 1, after the normal stop sequence, so a container restart policy can act. A serving error after a successful listen is still only logged.

Model: opus-5-5
2026-10-14 18:26:04 +02:00

34 lines
1.0 KiB
Go

package server
import (
"context"
"net"
"testing"
"git.eeqj.de/sneak/routewatch/internal/config"
"git.eeqj.de/sneak/routewatch/internal/logger"
"git.eeqj.de/sneak/routewatch/internal/metrics"
"git.eeqj.de/sneak/routewatch/internal/streamer"
)
// TestStartFailsWhenPortIsHeld holds a port with a listener of its own and
// checks that Start on that port returns an error. Before the fix Start
// listened in a goroutine, only logged the failure and returned nil, so the
// daemon kept running without its web server.
func TestStartFailsWhenPortIsHeld(t *testing.T) {
held, err := net.Listen("tcp", ":0")
if err != nil {
t.Fatalf("failed to open the test listener: %v", err)
}
defer func() { _ = held.Close() }()
port := held.Addr().(*net.TCPAddr).Port
log := logger.New()
s := New(nil, streamer.New(log, metrics.New()), log, &config.Config{Port: port})
defer func() { _ = s.Stop(context.Background()) }()
if err := s.Start(); err == nil {
t.Fatalf("Start returned nil while port %d was held by another listener", port)
}
}