run tests script

run.php

#!/usr/bin/env php
<?php
function en() {echo join(' ', func_get_args()),PHP_EOL;}
function eln() {echo join(PHP_EOL, func_get_args()),PHP_EOL;}

function runCase($num, $exe, $input, $output, $inData, $expected) {
    global $haveErrors;
    if ($input != 'stdin') {
        $tmpInput = $input;
    } else {
        $tmpInput = '_tmp' . time() . '.in';
    }
    file_put_contents($tmpInput, $inData);
    $cmd = $exe;
    if ($input == 'stdin') {
        $cmd .= ' < ' . $tmpInput;
    }
    //eln($cmd);
    if ($output != 'stdout' && file_exists($output)) {
        file_put_contents($output, '');
    }
    $time = microtime(true);
    exec($cmd, $tmpOut, $returnVal);
    $time = microtime(true) - $time;
    echo 'Case #' . $num . ': ';
    
    if ($returnVal > 0) {
        en('Warning! ReturnVal is ' . $returnVal . ' > 0.');
    }
    if ($output != 'stdout') {
        $tmpOut = trim(file_get_contents($output));
    } else {
        $tmpOut = trim(join(PHP_EOL, $tmpOut));
    }
    if ($tmpOut !== trim($expected)) {
        en('WRONG ANSWER!' . PHP_EOL. 'Expected:', substr(trim($expected), 0, 50) . PHP_EOL . 'Return:', substr($tmpOut, 0, 100));
        en('case: ' . PHP_EOL . substr(trim($inData), 0, 100));
        $haveErrors++;
    } else {
        en('OK! Time:', sprintf("%0.4f", $time) );
    }
    unlink($tmpInput);
}

$separator = '>>>';
$resultSeprator = '===';
$input = 'stdin';
$output = 'stdout';
$tests = 'tests.txt';
$haveErrors = 0;

if ($argc < 2) {
    eln('Usage: run.php ./a.out in input.txt out stdout tests NN.in');
    eln('Ex.: ' . 'g++ a.cpp && ./run ./a.out tests test_a.txt');
    exit(0);
}

for ($i = 1; $i < $argc; $i++) {
    $val = $argv[$i];
    if ($i == 1) {
        $exe = $val;
    } else {
        switch ($val) {
            case 'in':
                $i++;
                $input = $argv[$i];
                break;
            case 'out':
                $i++;
                $output = $argv[$i];
                break;
            case 'tests':
                $i++;
                $tests = $argv[$i];
                break;
            default:
                eln('Unknown param: ', $val);
                break;
        }
    }
}
$content = '';
if (!file_exists($tests)) {
    eln('Warning! No tests file available!');
    exit('asfd');
} else {
    $content = trim(file_get_contents($tests));
}

$cases = explode($separator, $content);
if (!empty($cases)) {
    $case = 1;
    foreach ($cases as $c) {
        list($data, $result) = explode($resultSeprator, trim($c));
        runCase($case++ , $exe, $input, $output, $data, $result);
    }
}
if ($haveErrors) {
    en('We have errors:', $haveErrors);
}