Added a check to not register routes if the app is running tests

src/LaravelInstallerServiceProvider.php

@@ -4,6 +4,7 @@ namespace Dterumal\LaravelInstaller;
 
 use Dterumal\LaravelInstaller\Http\Middleware\CheckInstallation;
 use Illuminate\Contracts\Http\Kernel;
+use Illuminate\Support\Facades\App;
 use Illuminate\Support\Facades\Route;
 use Illuminate\Support\ServiceProvider;
 
@@ -20,7 +21,7 @@ class LaravelInstallerServiceProvider extends ServiceProvider
         $this->defineAssetPublishing();
         $this->offerPublishing();
         $this->registerCommands();
-        if (!is_app_installed()) {
+        if (!is_app_installed() && !App::runningUnitTests()) {
             $this->registerRoutes();
         }