<?php
require 'vendor/autoload.php';
function benchmark($name, $runs, $function)
{
$start = microtime(true);
while ($runs--) {
$function();
}
$end = microtime(true);
return sprintf('%s: %s', $name, $end - $start) . PHP_EOL;
}
function heavyCalc($varA, $varB)
{
usleep(100);
return $varA + $varB;
}
$memoized = Knlv\memoize('heavyCalc');
echo benchmark('heavyCalc(1, 2)', 100, function () {
heavyCalc(1, 2);
});
echo benchmark('Memoized heavyCalc(1, 2)', 100, function () use(&$memoized) {
$memoized(1, 2);
});
fu::ok($e instanceof InvalidArgumentException, 'Throws InvalidArgumentException on invalid argument');
}
});
fu::test("Test memoize works", function () {
$counter = 0;
$function = function ($arg) use(&$counter) {
return $arg . ($counter += 1);
};
fu::equal('test1', $function('test'), 'Call with no memoization increments external counter');
fu::equal('test2', $function('test'), 'Call with no memoization increments external counter');
$memoized = Knlv\memoize($function);
fu::equal('test3', $memoized('test'), '1st call memoized function increments external counter');
fu::equal('test3', $memoized('test'), '2nd Call memoized function returns cached value');
fu::equal(3, $counter, 'Assert counter not changed after 2nd memoized function call');
});
fu::test("Test memoize use separate cache foreach function", function () {
$function1 = function ($arg) {
return $arg . $arg;
};
$function2 = function ($arg) {
return $arg;
};
fu::equal('testtest', $function1('test'), 'Assert not memoized function 1 works');
fu::equal('test', $function2('test'), 'Assert not memoized function 2 works');
$memoized1 = Knlv\memoize($function1);
$memoized2 = Knlv\memoize($function2);
fu::equal('testtest', $function1('test'), 'Assert memoized function 1 works 1st call');
fu::equal('testtest', $function1('test'), 'Assert memoized function 1 works 2nd call');
fu::equal('test', $function2('test'), 'Assert memoized function 2 works 1st call');
fu::equal('test', $function2('test'), 'Assert memoized function 2 works 2nd call');
});
