portal/app/tests/Feature/Admin/AdminSuppliersControllerTest.php

<?php

declare(strict_types=1);

use App\Models\Supplier;
use Illuminate\Foundation\Testing\DatabaseTransactions;
use Illuminate\Support\Facades\DB;

uses(DatabaseTransactions::class);

it('GET /api/admin/suppliers returns B1/B2/B3 suppliers', function () {
    // NB: с фазы 3 в suppliers есть и псевдо-поставщик 'direct' (DIRECT-лиды,
    // миграция 2026_05_25_120100), поэтому проверяем наличие закупочных b1/b2/b3,
    // а не строгий счёт. Если 'direct' не должен быть в этом списке — это правка
    // контроллера (фильтр), решение владельца, не тест.
    $response = $this->getJson('/api/admin/suppliers');
    $response->assertOk();
    $codes = collect($response->json('data'))->pluck('code')->all();
    expect($codes)->toContain('b1', 'b2', 'b3');
});

it('PATCH updates cost_rub for supplier', function () {
    $b1 = Supplier::where('code', 'b1')->first();
    $oldCost = (string) $b1->cost_rub;

    $this->patchJson("/api/admin/suppliers/{$b1->id}", ['cost_rub' => '1.50'])
        ->assertOk();

    expect((string) $b1->fresh()->cost_rub)->toBe('1.50');
    expect((string) $b1->fresh()->cost_rub)->not->toBe($oldCost);
});

it('PATCH validates cost_rub >= 0', function () {
    $b1 = Supplier::where('code', 'b1')->first();

    $this->patchJson("/api/admin/suppliers/{$b1->id}", ['cost_rub' => '-1.00'])
        ->assertStatus(422);
});

it('PATCH writes saas_admin_audit_log row', function () {
    $b1 = Supplier::where('code', 'b1')->first();

    $this->patchJson("/api/admin/suppliers/{$b1->id}", ['cost_rub' => '2.00'])
        ->assertOk();

    $log = DB::table('saas_admin_audit_log')
        ->where('action', 'suppliers.update')->first();
    expect($log)->not->toBeNull();
});