sergiors / prelude

use function Prelude\init;

class InitTest extends \PHPUnit\Framework\TestCase

{

    public function test()

    {

        $this->assertEquals([1, 2], init([1, 2, 3]));

        $this->assertEquals(['a' => 'a'], init(['a' => 'a', 'b' => 'b']));

        $this->assertEquals([], init([]));

    }

}

use function Prelude\tail;

class TailTest extends \PHPUnit\Framework\TestCase

{

    /**

     * @test

     */

    public function shouldReturnArrayRest()

    {

        $this->assertEquals([2, 3], tail([1, 2, 3]));

        $this->assertEquals(['b' => 'b'], tail(['a' => 'a', 'b' => 'b']));

        $this->assertEquals([], tail([]));

    }

}