aboutsummaryrefslogtreecommitdiffstats
path: root/vendor/brick/math/random-tests.php
diff options
context:
space:
mode:
authorMario <mario@mariovavti.com>2021-10-08 12:24:19 +0000
committerMario <mario@mariovavti.com>2021-10-08 12:24:19 +0000
commite6dac085cb1d601da1fc63bfd59d811612fa6ef4 (patch)
treef5b704b613c9c8d347857b4e7f8dd0b19cdd7df3 /vendor/brick/math/random-tests.php
parentf5f357060bf0ebcb0b8352519375953d993437e7 (diff)
downloadvolse-hubzilla-e6dac085cb1d601da1fc63bfd59d811612fa6ef4.tar.gz
volse-hubzilla-e6dac085cb1d601da1fc63bfd59d811612fa6ef4.tar.bz2
volse-hubzilla-e6dac085cb1d601da1fc63bfd59d811612fa6ef4.zip
update composer libs
Diffstat (limited to 'vendor/brick/math/random-tests.php')
-rw-r--r--vendor/brick/math/random-tests.php194
1 files changed, 0 insertions, 194 deletions
diff --git a/vendor/brick/math/random-tests.php b/vendor/brick/math/random-tests.php
deleted file mode 100644
index d9053fc11..000000000
--- a/vendor/brick/math/random-tests.php
+++ /dev/null
@@ -1,194 +0,0 @@
-<?php
-
-/**
- * This script stress tests calculators with random large numbers and ensures that all implementations return the same
- * results. It is designed to run in an infinite loop unless a bug is found.
- */
-
-declare(strict_types=1);
-
-require __DIR__ . '/vendor/autoload.php';
-
-use Brick\Math\Internal\Calculator;
-
-(new class(30) { // max digits
- private $gmp;
- private $bcmath;
- private $native;
-
- private $maxDigits;
-
- public function __construct(int $maxDigits)
- {
- $this->gmp = new Calculator\GmpCalculator();
- $this->bcmath = new Calculator\BcMathCalculator();
- $this->native = new Calculator\NativeCalculator();
-
- $this->maxDigits = $maxDigits;
- }
-
- public function __invoke() : void
- {
- for (;;) {
- $a = $this->generateRandomNumber();
- $b = $this->generateRandomNumber();
- $c = $this->generateRandomNumber();
-
- $this->runTests($a, $b);
- $this->runTests($b, $a);
-
- if ($a !== '0') {
- $this->runTests("-$a", $b);
- $this->runTests($b, "-$a");
- }
-
- if ($b !== '0') {
- $this->runTests($a, "-$b");
- $this->runTests("-$b", $a);
- }
-
- if ($a !== '0' && $b !== '0') {
- $this->runTests("-$a", "-$b");
- $this->runTests("-$b", "-$a");
- }
-
- if ($c !== '0') {
- $this->test("$a POW $b MOD $c", function(Calculator $calc) use($a, $b, $c) {
- return $calc->modPow($a, $b, $c);
- });
- }
- }
- }
-
- /**
- * @param string $a The left operand.
- * @param string $b The right operand.
- */
- private function runTests(string $a, string $b) : void
- {
- $this->test("$a + $b", function(Calculator $c) use($a, $b) {
- return $c->add($a, $b);
- });
-
- $this->test("$a - $b", function(Calculator $c) use($a, $b) {
- return $c->sub($a, $b);
- });
-
- $this->test("$a * $b", function(Calculator $c) use($a, $b) {
- return $c->mul($a, $b);
- });
-
- if ($b !== '0') {
- $this->test("$a / $b", function(Calculator $c) use($a, $b) {
- return $c->divQR($a, $b);
- });
-
- $this->test("$a MOD $b", function(Calculator $c) use($a, $b) {
- return $c->mod($a, $b);
- });
- }
-
- if ($b !== '0' && $b[0] !== '-') {
- $this->test("INV $a MOD $b", function(Calculator $c) use($a, $b) {
- return $c->modInverse($a, $b);
- });
- }
-
- $this->test("GCD $a, $b", function(Calculator $c) use($a, $b) {
- return $c->gcd($a, $b);
- });
-
- if ($a[0] !== '-') {
- $this->test("SQRT $a", function(Calculator $c) use($a, $b) {
- return $c->sqrt($a);
- });
- }
-
- $this->test("$a AND $b", function(Calculator $c) use($a, $b) {
- return $c->and($a, $b);
- });
-
- $this->test("$a OR $b", function(Calculator $c) use($a, $b) {
- return $c->or($a, $b);
- });
-
- $this->test("$a XOR $b", function(Calculator $c) use($a, $b) {
- return $c->xor($a, $b);
- });
- }
-
- /**
- * @param string $test A string representing the test being executed.
- * @param Closure $callback A callback function accepting a Calculator instance and returning a calculation result.
- */
- private function test(string $test, Closure $callback) : void
- {
- static $testCounter = 0;
- static $lastOutputTime = 0.0;
- static $currentSecond = 0;
- static $currentSecondTestCounter = 0;
- static $testsPerSecond = 0;
-
- $gmpResult = $callback($this->gmp);
- $bcmathResult = $callback($this->bcmath);
- $nativeResult = $callback($this->native);
-
- if ($gmpResult !== $bcmathResult) {
- self::failure('GMP', 'BCMath', $test);
- }
-
- if ($gmpResult !== $nativeResult) {
- self::failure('GMP', 'Native', $test);
- }
-
- $testCounter++;
- $currentSecondTestCounter++;
-
- $time = microtime(true);
- $second = (int) $time;
-
- if ($second !== $currentSecond) {
- $currentSecond = $second;
- $testsPerSecond = $currentSecondTestCounter;
- $currentSecondTestCounter = 0;
- }
-
- if ($time - $lastOutputTime >= 0.1) {
- echo "\r", number_format($testCounter), ' (', number_format($testsPerSecond) . ' / s)';
- $lastOutputTime = $time;
- }
- }
-
- /**
- * @param string $c1 The name of the first calculator.
- * @param string $c2 The name of the second calculator.
- * @param string $test A string representing the test being executed.
- */
- private static function failure(string $c1, string $c2, string $test) : void
- {
- echo PHP_EOL;
- echo 'FAILURE!', PHP_EOL;
- echo $c1, ' vs ', $c2, PHP_EOL;
- echo $test, PHP_EOL;
- die;
- }
-
- private function generateRandomNumber() : string
- {
- $length = random_int(1, $this->maxDigits);
-
- $number = '';
-
- for ($i = 0; $i < $length; $i++) {
- $number .= random_int(0, 9);
- }
-
- $number = ltrim($number, '0');
-
- if ($number === '') {
- return '0';
- }
-
- return $number;
- }
-})();