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<?php
namespace Prelude\Tests;
use function Prelude\nextStep;
class NextStepTest extends \PHPUnit_Framework_TestCase
{
/**
* @test
*/
public function shouldReturnFour()
$inc = function ($x, $next) {
return 4 === $x
? $x
: $next($x + 1);
};
$steps = nextStep($inc, $inc, $inc, $inc, $inc);
$this->assertEquals(4, $steps(1));
}
public function shouldReturnConcatString()
$steps = nextStep(function ($x, $next) {
return $next("bar($x)");
}, function ($x) {
return "foo($x)";
return "buzz($x)";
});
$this->assertEquals('foo(bar(fizz))', $steps('fizz'));
public function shouldReturnJustFirstCallback()
$steps = nextStep(function ($x) {
return $x * 2;
return $x + 10;
$this->assertEquals(10, $steps(5));
sergiors /
prelude
