/**
* @dataProvider transformProvider
*/
public function testTransform(QuantityValue $quantity, $transformation, QuantityValue $expected)
{
$args = func_get_args();
$extraArgs = array_slice($args, 3);
$call = array($quantity, 'transform');
$callArgs = array_merge(array('x', $transformation), $extraArgs);
$actual = call_user_func_array($call, $callArgs);
$this->assertEquals('x', $actual->getUnit());
$this->assertEquals($expected->getAmount()->getValue(), $actual->getAmount()->getValue(), 'value');
$this->assertEquals($expected->getUpperBound()->getValue(), $actual->getUpperBound()->getValue(), 'upper bound');
$this->assertEquals($expected->getLowerBound()->getValue(), $actual->getLowerBound()->getValue(), 'lower bound');
}
/**
* 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);
}
}
