integration: replace time.Sleep with assert.EventuallyWithT (#2680)

hscontrol/tailsql.go

@@ -2,6 +2,7 @@ package hscontrol
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"net/http"
 	"os"
@@ -70,7 +71,7 @@ func runTailSQLService(ctx context.Context, logf logger.Logf, stateDir, dbPath s
 		// When serving TLS, add a redirect from HTTP on port 80 to HTTPS on 443.
 		certDomains := tsNode.CertDomains()
 		if len(certDomains) == 0 {
-			return fmt.Errorf("no cert domains available for HTTPS")
+			return errors.New("no cert domains available for HTTPS")
 		}
 		base := "https://" + certDomains[0]
 		go http.Serve(lst, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -95,5 +96,6 @@ func runTailSQLService(ctx context.Context, logf logger.Logf, stateDir, dbPath s
 	logf("TailSQL started")
 	<-ctx.Done()
 	logf("TailSQL shutting down...")
+
 	return tsNode.Close()
 }