<?php

function data1(){
   yield [$this->new([1]), 1, true];
   yield [$this->new([1]), 2, false];
   yield [$this->new([2]), 1, false];
   yield [$this->new([2]), 2, true];
}

/** @dataProvider data1() */
function test1($obj, $search, $contains){
    assert($contains, $obj->contains($search));
}

function data2(){
   yield [[1], 1, true];
   yield [[1], 2, false];
   yield [[2], 1, false];
   yield [[2], 2, true];
}

/** @dataProvider data2() */
function test2($data, $search, $contains){
    $obj = $this->new($data);
    assert($contains, $obj->contains($search));
}