--TEST-- GH-433: expectOutputString not completely working as expected --FILE-- <?php declare(strict_types=1); $_SERVER['argv'][] = '--do-not-cache-result'; $_SERVER['argv'][] = '--no-configuration'; $_SERVER['argv'][] = __DIR__ . '/433/Issue433Test.php'; require_once __DIR__ . '/../../bootstrap.php'; PHPUnit\TextUI\Command::main(); --EXPECTF-- PHPUnit %s by Sebastian Bergmann and contributors. ..F 3 / 3 (100%) Time: %s, Memory: %s There was 1 failure: 1) Issue433Test::testNotMatchingOutput Failed asserting that two strings are equal. --- Expected +++ Actual @@ @@ -'foo' +'bar' FAILURES! Tests: 3, Assertions: 3, Failures: 1.