create test directory

tests/CreatesApplication.php

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+<?php
+
+namespace Tests;
+
+use Illuminate\Contracts\Console\Kernel;
+use Illuminate\Foundation\Application;
+
+trait CreatesApplication
+{
+    /**
+     * Creates the application.
+     */
+    public function createApplication(): Application
+    {
+        $app = require __DIR__ . '/../bootstrap/app.php';
+
+        $app->make(Kernel::class)->bootstrap();
+
+        return $app;
+    }
+}

tests/Feature/Services/NominatimTest.php

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+<?php
+
+namespace Tests\Feature\Services;
+
+use App\Services\NominatimService;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Foundation\Testing\WithFaker;
+use Tests\TestCase;
+
+class NominatimTest extends TestCase
+{
+    use RefreshDatabase, WithFaker;
+    /**
+     * A basic feature test example.
+     */
+    public function test_nominatim_service_return_0_if_the_environment_is_not_production(): void
+    {
+        $wayId = (new NominatimService())->get_way_id_from_nominatim();
+
+        $this->assertEquals($wayId, 0);
+    }
+}

tests/TestCase.php

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+<?php
+
+namespace Tests;
+
+use Illuminate\Foundation\Testing\TestCase as BaseTestCase;
+
+abstract class TestCase extends BaseTestCase
+{
+    use CreatesApplication;
+}