Describe entities as API Platform resources

tests/Api/UserApiTest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Tests\Api;
+
+use ApiPlatform\Symfony\Bundle\Test\ApiTestCase;
+
+class UserApiTest extends ApiTestCase
+{
+    public function testInsertUser(): void
+    {
+        $response = static::createClient()->request('POST', '/api/users', [
+            'json' => [
+                'email' => 'test@test.com',
+                'plainPassword' => 'password',
+            ]
+        ]);
+
+        $this->assertResponseStatusCodeSame(201);
+        $this->assertResponseHasHeader('Content-Location');
+
+        $location = $response->getHeaders()['content-location'][0];
+        static::createClient()->request('GET', $location);
+        $this->assertResponseIsSuccessful();
+        $this->assertJsonEquals([
+            '@context' => '/api/contexts/User',
+            '@id' => $location,
+            '@type' => 'User',
+            'email' => 'test@test.com',
+        ]);
+    }
+}