ladill-link/tests/Feature/AfiaTest.php

<?php

namespace Tests\Feature;

use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Str;
use Tests\TestCase;

class AfiaTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();
        Http::preventStrayRequests();
    }

    private function user(): User
    {
        return User::create(['public_id' => (string) Str::uuid(), 'name' => 'A', 'email' => 'a+'.uniqid().'@x.com']);
    }

    public function test_requires_a_message(): void
    {
        config(['afia.api_key' => 'sk-test']);
        $this->actingAs($this->user())->postJson('/afia/chat', [])->assertStatus(422);
    }

    public function test_returns_503_when_not_configured(): void
    {
        config(['afia.api_key' => '']);
        $this->actingAs($this->user())->postJson('/afia/chat', ['message' => 'hi'])->assertStatus(503);
    }

    public function test_returns_reply_from_llm(): void
    {
        config(['afia.api_key' => 'sk-test', 'afia.provider' => 'openai', 'afia.model' => 'gpt-4o-mini']);
        Http::fake([
            'api.openai.com/*' => Http::response(['choices' => [['message' => ['content' => 'Create a short link under My Links.']]]]),
        ]);

        $this->actingAs($this->user())
            ->postJson('/afia/chat', ['message' => 'How do I create a short link?'])
            ->assertOk()
            ->assertJson(['reply' => 'Create a short link under My Links.']);

        Http::assertSent(fn ($r) => str_contains($r->url(), 'openai.com')
            && collect($r['messages'])->first()['role'] === 'system'
            && str_contains(collect($r['messages'])->first()['content'], 'Ladill Link'));
    }
}