【Laravel5.8】dataProviderでFacade等を使う/遅延評価でやってみる

---

背景

qiita.com

• Laravel フレームワークにて、PHPUnitのdataProvider内でFacadeやfactoryが使えないのはよく知られている通り
  • parent::setUp()の中で$this->createApplication()される前にFacadeやfactoryを呼び出すとエラー
  • ver 6.0で解消されたっぽい

blog.martinhujer.cz

• ↑の記事から着想を得て、遅延評価でこれを回避してみる

テストコード

<?php

declare(strict_types=1);

namespace Tests\Unit;

use App\User;
use Hash;
use Tests\TestCase;

class FacadeTest extends TestCase
{
    /**
     * @test
     * @dataProvider dataProvider_dame
     */
    public function dame($user, $hash): void
    {
        $this->assertNotNull($user);
        $this->assertNotNull($hash);
    }

    /**
     * @test
     * @dataProvider dataProvider_lazy
     */
    public function ok(callable $user, callable $hash): void
    {
        $this->assertNotNull($user());
        $this->assertNotNull($hash());
    }

    // ----------------------------------------
    // dataProviders
    // ----------------------------------------

    /**
     * @return iterable
     */
    public function dataProvider_dame(): iterable
    {
        yield [
            'user' => factory(User::class)->make(),
            'hash' => Hash::make('secret'),
        ];
    }

    /**
     * @return iterable
     */
    public function dataProvider_lazy(): iterable
    {
        yield [
            'user' => function () {
                return factory(User::class)->make();
            },
            'hash' => function () {
                return Hash::make('secret');
            },
        ];
    }
}

実行結果

遅延評価じゃない方: ダメ

bash-4.4# ./vendor/bin/phpunit  tests/Feature/LazyDataProviderTest.php  --filter=dame
PHPUnit 7.5.15 by Sebastian Bergmann and contributors.

W                                                                   1 / 1 (100%)

Time: 290 ms, Memory: 4.00 MB

There was 1 warning:

1) Warning
The data provider specified for Tests\Unit\FacadeTest::dame is invalid.
Unable to locate factory with name [default] [App\User].

WARNINGS!
Tests: 1, Assertions: 0, Warnings: 1.

• データプロバイダー内でエラー出てWarningに

遅延評価: OK

bash-4.4# ./vendor/bin/phpunit  tests/Feature/LazyDataProviderTest.php  --filter=ok
PHPUnit 7.5.15 by Sebastian Bergmann and contributors.

.                                                                   1 / 1 (100%)

Time: 995 ms, Memory: 8.00 MB

OK (1 test, 2 assertions)

やったあ