Testing in Laravel

Testing with PHPUnit in Laravel

php artisan make:test PostControllerTest

class PostControllerTest extends TestCase {
    use RefreshDatabase;  // reset DB between tests

    public function test_authenticated_user_can_create_post(): void {
        $user = User::factory()->create();

        $response = $this->actingAs($user)
            ->postJson("/api/posts", [
                "title" => "Test Post",
                "body"  => "Test body content",
            ]);

        $response->assertStatus(201)
                 ->assertJsonStructure(["data" => ["id", "title"]]);

        $this->assertDatabaseHas("posts", ["title" => "Test Post"]);
    }

    public function test_guest_cannot_create_post(): void {
        $this->postJson("/api/posts", ["title" => "Test"])
             ->assertUnauthorized();
    }
}