tests-levels-matrix.php

<?php declare(strict_types = 1);

exec('php vendor/bin/phpunit --group levels --list-tests-xml test-list.xml', $output, $return);
if ($return !== 0) {
	throw new RuntimeException(implode("\n", $output));
}

libxml_use_internal_errors(true);
$simpleXml = simplexml_load_file('test-list.xml');
if ($simpleXml === false) {
	$errors = [];
	foreach (libxml_get_errors() as $error) {
		$errors[] = $error->message;
	}

	throw new RuntimeException('Error loading test-list.xml: ' . implode(', ', $errors));
}

$testFilters = [];
foreach($simpleXml->tests as $testClasses) {
	foreach($testClasses->testClass as $testClass) {
		foreach($testClass->testMethod as $testMethod) {
			$testCaseName = (string)$testMethod['id'];

			[$className, $testName] = explode('::', $testCaseName, 2);
			$fileName = 'tests/' . str_replace('\\', DIRECTORY_SEPARATOR, $className) . '.php';

			$filter = str_replace('\\', '\\\\', $testCaseName);

			$testFilters[] = sprintf("%s --filter %s", escapeshellarg($fileName), escapeshellarg($filter));
		}
	}
}

if ($testFilters === []) {
	throw new RuntimeException('No tests found');
}

$chunkSize = (int) ceil(count($testFilters) / 10);
$chunks = array_chunk($testFilters, $chunkSize);

$commands = [];
foreach ($chunks as $chunk) {
	$commands[] = implode("\n", array_map(fn (string $ch) => sprintf('php vendor/bin/phpunit %s --group levels', $ch), $chunk));
}

echo json_encode($commands);