Test require() is executed in subprocess

Author: staabm

tests/end-to-end/_files/phpt-skipif-require.phpt

@@ -0,0 +1,10 @@
+--TEST--
+PHPT skip condition with IO operations run in main process
+--SKIPIF--
+<?php declare(strict_types=1);
+require (__DIR__ . '/phpt-skipif-required-file.php');
+--FILE--
+<?php declare(strict_types=1);
+echo "Hello, World!\n";
+--EXPECT--
+Hello, World!

tests/end-to-end/_files/phpt-skipif-required-file.php

@@ -0,0 +1,5 @@
+<?php
+
+namespace PhpTSkipIfRequiredFile;
+
+class SomeClass {}

tests/end-to-end/event/phpt-skipif-require.phpt

@@ -0,0 +1,33 @@
+--TEST--
+The right events are emitted in the right order for PHPT test using require() in skipif
+--FILE--
+<?php declare(strict_types=1);
+$_SERVER['argv'][] = '--do-not-cache-result';
+$_SERVER['argv'][] = '--no-configuration';
+$_SERVER['argv'][] = '--debug';
+$_SERVER['argv'][] = __DIR__ . '/../_files/phpt-skipif-require.phpt';
+
+require __DIR__ . '/../../bootstrap.php';
+
+(new PHPUnit\TextUI\Application)->run($_SERVER['argv']);
+--EXPECTF--
+PHPUnit Started (PHPUnit %s using %s)
+Test Runner Configured
+Event Facade Sealed
+Test Suite Loaded (1 test)
+Test Runner Started
+Test Suite Sorted
+Test Runner Execution Started (1 test)
+Test Suite Started (%s%ephpt-skipif-require.phpt, 1 test)
+Test Preparation Started (%s%ephpt-skipif-require.phpt)
+Test Prepared (%s%ephpt-skipif-require.phpt)
+Child Process Started
+Child Process Finished
+Child Process Started
+Child Process Finished
+Test Passed (%s%ephpt-skipif-require.phpt)
+Test Finished (%s%ephpt-skipif-require.phpt)
+Test Suite Finished (%s%ephpt-skipif-require.phpt, 1 test)
+Test Runner Execution Finished
+Test Runner Finished
+PHPUnit Finished (Shell Exit Code: 0)