test get all carriers

tests/Unit/Carrier/UseCases/GetAllCarriersTest.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Tests\Unit\Carrier\UseCases;
+
+use FreightQuote\Carrier\Carrier;
+use PHPUnit\Framework\TestCase;
+use FreightQuote\Carrier\UseCases\GetAllCarriers;
+use Tests\Fakes\Carrier\FakeCarrierRepository;
+
+class GetAllCarriersTest extends TestCase
+{
+    public function test_get_one_carrier(): void
+    {
+        $repo = new FakeCarrierRepository();
+        $repo->save(new Carrier(0, 'email@email.com'));
+        $useCase = new GetAllCarriers($repo);
+        $response = $useCase->execute();
+        $this->assertEquals([new Carrier(0, 'email@email.com')], $response);
+    }
+
+    public function test_get_zero_carriers(): void
+    {
+        $repo = new FakeCarrierRepository();
+        $useCase = new GetAllCarriers($repo);
+        $response = $useCase->execute();
+        $this->assertEquals([], $response);
+    }
+}