phpcbf temp.php --standard=PSR2 --tab-width=4

temp.php

<?php
namespace I18nMessages\Test\I18n;

use Cake\TestSuite\TestCase;
use I18nMessages\I18n\DbMessagesLoader;

/**
 * Tests for DbMessagesLoader
 */
class DbMessagesLoaderTest extends TestCase
{

/**
 * fixtures
 *
 * @var array
 */
    public $fixtures = ['plugin.I18nMessages.I18nMessages'];

/**
 * testInvoke method
 *
 * @param string $domain
 * @param string $locale
 * @param string $model
 * @param array $expected
 * @return void
 * @dataProvider paramsProvider
 */
    public function testInvoke($domain, $locale, $model, $expected)
    {
        $loader = new DbMessagesLoader($domain, $locale, $model);
        $package = $loader();

        $this->assertEquals($expected, $package->getMessages());
    }

/**
 * Data provider for testInvoke
 *
 * @return array
 */
    public function paramsProvider()
    {
        return [
            [
                'default',
                'en',
                null,
                [
                    'test' => 'test translated',
                    'singular' => '{0} value',
                    'plural' => ['{0} value', '{0} values']
                ]
            ],
            [
                'default',
                'fr',
                null,
                ['test' => 'fr test translated']
            ],
            [
                'my_domain',
                'en',
                null,
                ['test' => 'domain test translated']
            ],
            [
                'w_context',
                'en',
                null,
                [
                    'test' => ['_context' => ['c1' => 'test translated']],
                    'singular' => [
                        '_context' => [
                            'c1' => '{0} value',
                            'c2' => '{0} value c2'
                        ]
                    ],
                    'plural' => [
                        '_context' => [
                            'c1' => ['{0} value', '{0} values'],
                            'c2' => ['{0} value c2', '{0} values c2']
                        ]
                    ],
                ]
            ],
            [
                'foo',
                'bar',
                null,
                []
            ]
        ];
    }
}