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<?php declare(strict_types=1);
namespace PhpParser;
class CodeTestParser {
public function parseTest($code, $chunksPerTest) {
$code = canonicalize($code);
// evaluate @@{expr}@@ expressions
$code = preg_replace_callback(
'/@@\{(.*?)\}@@/',
function ($matches) {
return eval('return ' . $matches[1] . ';');
},
$code
);
// parse sections
$parts = preg_split("/\n-----(?:\n|$)/", $code);
// first part is the name
$name = array_shift($parts);
// multiple sections possible with always two forming a pair
$chunks = array_chunk($parts, $chunksPerTest);
$tests = [];
foreach ($chunks as $chunk) {
$lastPart = array_pop($chunk);
list($lastPart, $mode) = $this->extractMode($lastPart);
$tests[] = [$mode, array_merge($chunk, [$lastPart])];
}
return [$name, $tests];
}
public function reconstructTest($name, array $tests) {
$result = $name;
foreach ($tests as list($mode, $parts)) {
$lastPart = array_pop($parts);
foreach ($parts as $part) {
$result .= "\n-----\n$part";
}
$result .= "\n-----\n";
if (null !== $mode) {
$result .= "!!$mode\n";
}
$result .= $lastPart;
}
return $result . "\n";
}
private function extractMode(string $expected): array {
$firstNewLine = strpos($expected, "\n");
if (false === $firstNewLine) {
$firstNewLine = strlen($expected);
}
$firstLine = substr($expected, 0, $firstNewLine);
if (0 !== strpos($firstLine, '!!')) {
return [$expected, null];
}
$expected = substr($expected, $firstNewLine + 1);
return [$expected, substr($firstLine, 2)];
}
}
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