/**
* @covers \convert\to_array_like
* @covers \convert\to_array
* @covers \convert\to_traversable
* @dataProvider provider_args
*/
public function test_convert($var, bool $empty_value_to_empty_array, $expected_to_array_like, $expected_to_array, $expected_to_traversable)
{
$actual = to_array_like($var, $empty_value_to_empty_array);
$this->assertEquals($expected_to_array_like, $actual);
$actual = to_array($var, $empty_value_to_empty_array);
$this->assertEquals($expected_to_array, $actual);
$actual = to_traversable($var);
$this->assertEquals($expected_to_traversable, $actual);
}
/**
* Calculate statistics for a traversable.
*
* @param array $traversable the traversable
* @param string $flags_or_comparator either one of SORT_* constants
* or a comparator function
*/
public function __construct($traversable, $flags_or_comparator = SORT_REGULAR)
{
$values = traversable_sort($flags_or_comparator, array_values(to_array($traversable)));
if (empty($values)) {
return;
}
$this->count = count($values);
$this->min = (double) $values[0];
$this->max = (double) $values[$this->count - 1];
$this->sum = (double) array_sum($values);
$this->average = (double) ($this->sum / $this->count);
$this->count_is_odd = (bool) ($this->count % 2);
$this->count_is_even = !$this->count_is_odd;
$median_floor_key = (int) floor($this->count / 2) - 1 + (int) $this->count_is_odd;
$median_ceil_key = $median_floor_key + (int) $this->count_is_even;
$this->median_floor = (double) $values[$median_floor_key];
$this->median_ceil = (double) $values[$median_ceil_key];
$this->median_average = $this->count_is_odd ? $this->median_floor : (double) (($this->median_floor + $this->median_ceil) / 2);
}
protected function preprocess($value)
{
return to_array($value);
}
