public function testInitial()
{
// from js
$this->assertEquals('1, 2, 3, 4', join(', ', __::initial(array(1, 2, 3, 4, 5))), 'working initial()');
$this->assertEquals('1, 2', join(', ', __::initial(array(1, 2, 3, 4), 2)), 'initial can take an index');
$result = __::map(array(array(1, 2, 3), array(1, 2, 3)), function ($item) {
return __::initial($item);
});
$this->assertEquals('1,2,1,2', join(',', __::flatten($result)), 'initial works with map');
// extra
$this->assertEquals(array(1, 2), __::initial(array(1, 2, 3)), 'works with no n');
$this->assertEquals(array(1, 2), __::initial(array(1, 2, 3), 1), 'works with 1 n');
$this->assertEquals(array(1), __::initial(array(1, 2, 3), 2), 'works with 2 n');
$this->assertEquals(array(), __::initial(array(1, 2, 3), 3), 'works with 3 n');
$this->assertEquals(array(1), __::initial(array(1, 2, 3), 5), 'works with surplus n');
$this->assertEquals(array(1, 2, 3), __::initial(array(1, 2, 3), 0), 'works with 0 n');
$this->assertEquals(array(1, 2, 3), __::initial(array(1, 2, 3), -1), 'works with negative n');
}
public function testInitial()
{
// from js
$this->assertEquals('1, 2, 3, 4', join(', ', __::initial(array(1, 2, 3, 4, 5))), 'working initial()');
$this->assertEquals('1, 2', join(', ', __::initial(array(1, 2, 3, 4), 2)), 'initial can take an index');
$func = function () {
return __(func_get_args())->initial();
};
$result = $func(1, 2, 3, 4);
$this->assertEquals('1, 2, 3', join(', ', $result), 'initial works on arguments');
$result = __::map(array(array(1, 2, 3), array(1, 2, 3)), function ($item) {
return __::initial($item);
});
$this->assertEquals('1,2,1,2', join(',', __::flatten($result)), 'initial works with map');
// extra
$this->assertEquals(array('a', 'b'), __(array('a', 'b', 'c'))->initial(), 'works with OO-style calls');
$this->assertEquals(array(1, 2), __::initial(array(1, 2, 3)), 'works with no n');
$this->assertEquals(array(1, 2), __::initial(array(1, 2, 3), 1), 'works with 1 n');
$this->assertEquals(array(1), __::initial(array(1, 2, 3), 2), 'works with 2 n');
$this->assertEquals(array(), __::initial(array(1, 2, 3), 3), 'works with 3 n');
$this->assertEquals(array(1), __::initial(array(1, 2, 3), 5), 'works with surplus n');
$this->assertEquals(array(1, 2, 3), __::initial(array(1, 2, 3), 0), 'works with 0 n');
$this->assertEquals(array(1, 2, 3), __::initial(array(1, 2, 3), -1), 'works with negative n');
}
