Replace Twig extension tests with custom tests

Handles incompatibilities with newer PHPUnit version

Author: SenseException

tests/Twig/Fixtures/filters/intl_format.test

@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Budgegeria\Bundle\IntlBundle\Tests\Twig;
+
+use Budgegeria\Bundle\IntlBundle\Twig\IntlFormatterExtension;
+use Budgegeria\IntlFormat\Factory;
+use PHPUnit\Framework\TestCase;
+use Twig\Environment;
+use Twig\Loader\ArrayLoader;
+
+class TwigExtensionTest extends TestCase
+{
+    /** @test */
+    public function intlFormatFilterFormat(): void
+    {
+        $twig = $this->createTwigEnv();
+
+        self::assertInstanceOf(Environment::class, $twig);
+
+        self::assertSame('This is the 4 time that the number 6.000 appear', $twig->render('intlformat-filter-format'));
+    }
+
+    /** @test */
+    public function intlFormatFunctionFormat(): void
+    {
+        $twig = $this->createTwigEnv();
+
+        self::assertInstanceOf(Environment::class, $twig);
+
+        self::assertSame('This is the 4 time that the number 6.000 appear', $twig->render('intlformat-function-format'));
+    }
+
+    /** @test */
+    public function intlFormatCurrency(): void
+    {
+        $twig = $this->createTwigEnv();
+
+        self::assertInstanceOf(Environment::class, $twig);
+
+        self::assertSame('€', $twig->render('intlformat-function-curreny'));
+    }
+
+    private function createTwigEnv(): Environment
+    {
+        $templates = [
+            'intlformat-filter-format' => '{{ "This is the %integer time that the number %integer appear"|intl_format(4, 6000) }}',
+            'intlformat-function-format' => '{{ intl_format("This is the %integer time that the number %integer appear", 4, 6000) }}',
+            'intlformat-function-curreny' => '{{ currency_symbol() }}',
+        ];
+
+        $loader = new ArrayLoader($templates);
+        $twig   = new Environment($loader);
+        $twig->addExtension(new IntlFormatterExtension((new Factory())->createIntlFormat('de_DE'), 'EUR'));
+
+        return $twig;
+    }
+}