/**
* @dataProvider getOrderOfUncertaintyProvider
*/
public function testGetOrderOfUncertainty(QuantityValue $quantity, $expected)
{
$actual = $quantity->getOrderOfUncertainty();
$this->assertEquals($expected, $actual);
}
/**
* Returns the rounding exponent based on the given $quantity
* and the @see QuantityFormatter::OPT_APPLY_ROUNDING option.
*
* @param QuantityValue $quantity
*
* @return int
*/
private function getRoundingExponent(QuantityValue $quantity)
{
if ($this->options->getOption(self::OPT_APPLY_ROUNDING) === true) {
// round to the order of uncertainty
return $quantity->getOrderOfUncertainty();
} elseif ($this->options->getOption(self::OPT_APPLY_ROUNDING) === false) {
// to keep all digits, use the negative length of the fractional part
return -strlen($quantity->getAmount()->getFractionalPart());
} else {
return (int) $this->options->getOption(self::OPT_APPLY_ROUNDING);
}
}
