Test #[DataProvider] with process isolation

Author: staabm

tests/end-to-end/_files/TestProcessIsolationWithDataProvider.php

@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\TestFixture;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\RunInSeparateProcess;
+use PHPUnit\Framework\TestCase;
+
+final class TestProcessIsolationWithDataProvider extends TestCase
+{
+    public static function greetDataProvider(): iterable
+    {
+        yield ['Hello world!'];
+    }
+
+    #[RunInSeparateProcess]
+    #[DataProvider('greetDataProvider')]
+    public function testInIsolationWithProvider(string $expected): void
+    {
+        $this->assertSame($expected, 'Hello world!');
+    }
+}

tests/end-to-end/data-provider/process-isolation.phpt

@@ -0,0 +1,20 @@
+--TEST--
+phpunit ../_files/TestProcessIsolationWithDataProvider.php
+--FILE--
+<?php declare(strict_types=1);
+$_SERVER['argv'][] = '--do-not-cache-result';
+$_SERVER['argv'][] = '--no-configuration';
+$_SERVER['argv'][] = __DIR__ . '/../_files/TestProcessIsolationWithDataProvider.php';
+
+require_once __DIR__ . '/../../bootstrap.php';
+(new PHPUnit\TextUI\Application)->run($_SERVER['argv']);
+--EXPECTF--
+PHPUnit %s by Sebastian Bergmann and contributors.
+
+Runtime: %s
+
+.                                                                   1 / 1 (100%)
+
+Time: %s, Memory: %s
+
+OK (1 test, 1 assertion)