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|
--TEST--
Decimal::round
--SKIPIF--
<?php
if (!extension_loaded("decimal")) echo "skip";
?>
--FILE--
<?php
use Decimal\Decimal;
$tests = [
/* number, decimal places, rounding mode(s), expected result */
/* HALF UP, .5 AWAY FROM ZERO */
[ "1.1", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "1"],
[ "1.5", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "2"],
[ "1.9", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "2"],
["-1.1", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-1"],
["-1.5", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-2"],
["-1.9", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-2"],
[ "1.2341", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "1.234"],
[ "1.2345", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "1.235"],
[ "1.2349", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "1.235"],
["-1.2341", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-1.234"],
["-1.2345", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-1.235"],
["-1.2349", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-1.235"],
[ "1.23455", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "1.235"],
["-1.23455", 3, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-1.235"],
[ "0", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "0"],
[ "3", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "3"],
[ "4", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "4"],
["-3", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-3"],
["-4", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-4"],
[ "NAN", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "NAN"],
[ "INF", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "INF"],
["-INF", 0, [Decimal::ROUND_HALF_UP, PHP_ROUND_HALF_UP], "-INF"],
/* HALF DOWN, .5 TOWARDS ZERO */
[ "1.1", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "1"],
[ "1.5", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "1"],
[ "1.9", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "2"],
["-1.1", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-1"],
["-1.5", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-1"],
["-1.9", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-2"],
[ "1.2341", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "1.234"],
[ "1.2345", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "1.234"],
[ "1.2349", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "1.235"],
["-1.2341", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-1.234"],
["-1.2345", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-1.234"],
["-1.2349", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-1.235"],
[ "1.23455", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "1.235"],
["-1.23455", 3, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-1.235"],
[ "0", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "0"],
[ "3", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "3"],
[ "4", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "4"],
["-3", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-3"],
["-4", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-4"],
[ "NAN", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "NAN"],
[ "INF", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "INF"],
["-INF", 0, [Decimal::ROUND_HALF_DOWN, PHP_ROUND_HALF_DOWN], "-INF"],
/* HALF EVEN, .5 TO NEAREST EVEN NUMBER */
[ "1.1", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "1"],
[ "1.5", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "2"],
[ "1.9", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "2"],
["-1.1", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-1"],
["-1.5", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-2"],
["-1.9", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-2"],
[ "1.2341", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "1.234"],
[ "1.2345", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "1.234"],
[ "1.2349", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "1.235"],
["-1.2341", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-1.234"],
["-1.2345", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-1.234"],
["-1.2349", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-1.235"],
[ "1.23455", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "1.235"],
["-1.23455", 3, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-1.235"],
[ "0", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "0"],
[ "3", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "3"],
[ "4", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "4"],
["-3", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-3"],
["-4", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-4"],
[ "NAN", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "NAN"],
[ "INF", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "INF"],
["-INF", 0, [Decimal::ROUND_HALF_EVEN, PHP_ROUND_HALF_EVEN], "-INF"],
/* HALF ODD, .5 TO NEAREST ODD NUMBER */
[ "1.1", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "1"],
[ "1.5", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "1"],
[ "1.9", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "2"],
["-1.1", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-1"],
["-1.5", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-1"],
["-1.9", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-2"],
[ "1.2341", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "1.234"],
[ "1.2345", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "1.235"],
[ "1.2349", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "1.235"],
["-1.2341", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-1.234"],
["-1.2345", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-1.235"],
["-1.2349", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-1.235"],
[ "1.23455", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "1.235"],
["-1.23455", 3, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-1.235"],
[ "0", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "0"],
[ "3", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "3"],
[ "4", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "4"],
["-3", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-3"],
["-4", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-4"],
[ "NAN", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "NAN"],
[ "INF", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "INF"],
["-INF", 0, [Decimal::ROUND_HALF_ODD, PHP_ROUND_HALF_ODD], "-INF"],
/* UP, AWAY FROM ZERO */
[ "1.1", 0, [Decimal::ROUND_UP], "2"],
[ "1.5", 0, [Decimal::ROUND_UP], "2"],
[ "1.9", 0, [Decimal::ROUND_UP], "2"],
["-1.1", 0, [Decimal::ROUND_UP], "-2"],
["-1.5", 0, [Decimal::ROUND_UP], "-2"],
["-1.9", 0, [Decimal::ROUND_UP], "-2"],
[ "1.2341", 3, [Decimal::ROUND_UP], "1.235"],
[ "1.2345", 3, [Decimal::ROUND_UP], "1.235"],
[ "1.2349", 3, [Decimal::ROUND_UP], "1.235"],
["-1.2341", 3, [Decimal::ROUND_UP], "-1.235"],
["-1.2345", 3, [Decimal::ROUND_UP], "-1.235"],
["-1.2349", 3, [Decimal::ROUND_UP], "-1.235"],
[ "1.23455", 3, [Decimal::ROUND_UP], "1.235"],
["-1.23455", 3, [Decimal::ROUND_UP], "-1.235"],
[ "0", 0, [Decimal::ROUND_UP], "0"],
[ "3", 0, [Decimal::ROUND_UP], "3"],
[ "4", 0, [Decimal::ROUND_UP], "4"],
["-3", 0, [Decimal::ROUND_UP], "-3"],
["-4", 0, [Decimal::ROUND_UP], "-4"],
[ "NAN", 0, [Decimal::ROUND_UP], "NAN"],
[ "INF", 0, [Decimal::ROUND_UP], "INF"],
["-INF", 0, [Decimal::ROUND_UP], "-INF"],
// /* DOWN, TOWARDS ZERO */
[ "1.1", 0, [Decimal::ROUND_DOWN], "1"],
[ "1.5", 0, [Decimal::ROUND_DOWN], "1"],
[ "1.9", 0, [Decimal::ROUND_DOWN], "1"],
["-1.1", 0, [Decimal::ROUND_DOWN], "-1"],
["-1.5", 0, [Decimal::ROUND_DOWN], "-1"],
["-1.9", 0, [Decimal::ROUND_DOWN], "-1"],
[ "1.2341", 3, [Decimal::ROUND_DOWN], "1.234"],
[ "1.2345", 3, [Decimal::ROUND_DOWN], "1.234"],
[ "1.2349", 3, [Decimal::ROUND_DOWN], "1.234"],
["-1.2341", 3, [Decimal::ROUND_DOWN], "-1.234"],
["-1.2345", 3, [Decimal::ROUND_DOWN], "-1.234"],
["-1.2349", 3, [Decimal::ROUND_DOWN], "-1.234"],
[ "1.23455", 3, [Decimal::ROUND_DOWN], "1.234"],
["-1.23455", 3, [Decimal::ROUND_DOWN], "-1.234"],
[ "0", 0, [Decimal::ROUND_DOWN], "0"],
[ "3", 0, [Decimal::ROUND_DOWN], "3"],
[ "4", 0, [Decimal::ROUND_DOWN], "4"],
["-3", 0, [Decimal::ROUND_DOWN], "-3"],
["-4", 0, [Decimal::ROUND_DOWN], "-4"],
[ "NAN", 0, [Decimal::ROUND_DOWN], "NAN"],
[ "INF", 0, [Decimal::ROUND_DOWN], "INF"],
["-INF", 0, [Decimal::ROUND_DOWN], "-INF"],
/* CEILING, TOWARDS +INF */
[ "1.1", 0, [Decimal::ROUND_CEILING], "2"],
[ "1.5", 0, [Decimal::ROUND_CEILING], "2"],
[ "1.9", 0, [Decimal::ROUND_CEILING], "2"],
["-1.1", 0, [Decimal::ROUND_CEILING], "-1"],
["-1.5", 0, [Decimal::ROUND_CEILING], "-1"],
["-1.9", 0, [Decimal::ROUND_CEILING], "-1"],
[ "1.2341", 3, [Decimal::ROUND_CEILING], "1.235"],
[ "1.2345", 3, [Decimal::ROUND_CEILING], "1.235"],
[ "1.2349", 3, [Decimal::ROUND_CEILING], "1.235"],
["-1.2341", 3, [Decimal::ROUND_CEILING], "-1.234"],
["-1.2345", 3, [Decimal::ROUND_CEILING], "-1.234"],
["-1.2349", 3, [Decimal::ROUND_CEILING], "-1.234"],
[ "1.23455", 3, [Decimal::ROUND_DOWN], "1.234"],
["-1.23455", 3, [Decimal::ROUND_DOWN], "-1.234"],
[ "0", 0, [Decimal::ROUND_CEILING], "0"],
[ "3", 0, [Decimal::ROUND_CEILING], "3"],
[ "4", 0, [Decimal::ROUND_CEILING], "4"],
["-3", 0, [Decimal::ROUND_CEILING], "-3"],
["-4", 0, [Decimal::ROUND_CEILING], "-4"],
[ "NAN", 0, [Decimal::ROUND_CEILING], "NAN"],
[ "INF", 0, [Decimal::ROUND_CEILING], "INF"],
["-INF", 0, [Decimal::ROUND_CEILING], "-INF"],
/* FLOOR, TOWARDS -INF */
[ "1.1", 0, [Decimal::ROUND_FLOOR], "1"],
[ "1.5", 0, [Decimal::ROUND_FLOOR], "1"],
[ "1.9", 0, [Decimal::ROUND_FLOOR], "1"],
["-1.1", 0, [Decimal::ROUND_FLOOR], "-2"],
["-1.5", 0, [Decimal::ROUND_FLOOR], "-2"],
["-1.9", 0, [Decimal::ROUND_FLOOR], "-2"],
[ "1.2341", 3, [Decimal::ROUND_FLOOR], "1.234"],
[ "1.2345", 3, [Decimal::ROUND_FLOOR], "1.234"],
[ "1.2349", 3, [Decimal::ROUND_FLOOR], "1.234"],
["-1.2341", 3, [Decimal::ROUND_FLOOR], "-1.235"],
["-1.2345", 3, [Decimal::ROUND_FLOOR], "-1.235"],
["-1.2349", 3, [Decimal::ROUND_FLOOR], "-1.235"],
[ "1.23455", 3, [Decimal::ROUND_DOWN], "1.234"],
["-1.23455", 3, [Decimal::ROUND_DOWN], "-1.234"],
[ "0", 0, [Decimal::ROUND_FLOOR], "0"],
[ "3", 0, [Decimal::ROUND_FLOOR], "3"],
[ "4", 0, [Decimal::ROUND_FLOOR], "4"],
["-3", 0, [Decimal::ROUND_FLOOR], "-3"],
["-4", 0, [Decimal::ROUND_FLOOR], "-4"],
[ "NAN", 0, [Decimal::ROUND_FLOOR], "NAN"],
[ "INF", 0, [Decimal::ROUND_FLOOR], "INF"],
["-INF", 0, [Decimal::ROUND_FLOOR], "-INF"],
/* TRUNCATE */
[ "1.1", 0, [Decimal::ROUND_TRUNCATE], "1"],
[ "1.5", 0, [Decimal::ROUND_TRUNCATE], "1"],
[ "1.9", 0, [Decimal::ROUND_TRUNCATE], "1"],
["-1.1", 0, [Decimal::ROUND_TRUNCATE], "-1"],
["-1.5", 0, [Decimal::ROUND_TRUNCATE], "-1"],
["-1.9", 0, [Decimal::ROUND_TRUNCATE], "-1"],
[ "1.2341", 3, [Decimal::ROUND_TRUNCATE], "1.234"],
[ "1.2345", 3, [Decimal::ROUND_TRUNCATE], "1.234"],
[ "1.2349", 3, [Decimal::ROUND_TRUNCATE], "1.234"],
["-1.2341", 3, [Decimal::ROUND_TRUNCATE], "-1.234"],
["-1.2345", 3, [Decimal::ROUND_TRUNCATE], "-1.234"],
["-1.2349", 3, [Decimal::ROUND_TRUNCATE], "-1.234"],
[ "1.23455", 3, [Decimal::ROUND_TRUNCATE], "1.234"],
["-1.23455", 3, [Decimal::ROUND_TRUNCATE], "-1.234"],
[ "0", 0, [Decimal::ROUND_TRUNCATE], "0"],
[ "3", 0, [Decimal::ROUND_TRUNCATE], "3"],
[ "4", 0, [Decimal::ROUND_TRUNCATE], "4"],
["-3", 0, [Decimal::ROUND_TRUNCATE], "-3"],
["-4", 0, [Decimal::ROUND_TRUNCATE], "-4"],
[ "NAN", 0, [Decimal::ROUND_TRUNCATE], "NAN"],
[ "INF", 0, [Decimal::ROUND_TRUNCATE], "INF"],
["-INF", 0, [Decimal::ROUND_TRUNCATE], "-INF"],
/* ROUND NEGATIVE FIGURES */
["1.2345", -3, [Decimal::ROUND_HALF_UP], "0E+3"],
["12345", -3, [Decimal::ROUND_HALF_UP], "1.2E+4"],
/* ROUND TO CURRENT SIGNIFICANT FIGURES */
["0.12345", 5, [Decimal::ROUND_HALF_UP], "0.12345"],
["1.2345", 5, [Decimal::ROUND_HALF_UP], "1.2345"],
["12.345", 5, [Decimal::ROUND_HALF_UP], "12.345"],
["123.45", 5, [Decimal::ROUND_HALF_UP], "123.45"],
["1234.5", 5, [Decimal::ROUND_HALF_UP], "1234.5"],
["12345", 5, [Decimal::ROUND_HALF_UP], "12345"],
/* ROUND BEYOND CURRENT SIGNIFICANT FIGURES */
["0.12345", 10, [Decimal::ROUND_HALF_UP], "0.12345"],
["1.2345", 10, [Decimal::ROUND_HALF_UP], "1.2345"],
["12.345", 10, [Decimal::ROUND_HALF_UP], "12.345"],
["123.45", 10, [Decimal::ROUND_HALF_UP], "123.45"],
["1234.5", 10, [Decimal::ROUND_HALF_UP], "1234.5"],
["12345", 10, [Decimal::ROUND_HALF_UP], "12345"],
/* ROUND BEYOND PRECISION */
["0.12345", 10, [Decimal::ROUND_HALF_UP], "0.12345"],
["1.2345", 10, [Decimal::ROUND_HALF_UP], "1.2345"],
["12.345", 10, [Decimal::ROUND_HALF_UP], "12.345"],
["123.45", 10, [Decimal::ROUND_HALF_UP], "123.45"],
["1234.5", 10, [Decimal::ROUND_HALF_UP], "1234.5"],
["12345", 10, [Decimal::ROUND_HALF_UP], "12345"],
];
foreach ($tests as $test) {
list($number, $places, $modes, $expect) = $test;
/* Check to see if there is an equivalent PHP constant */
foreach ($modes as $mode) {
$result = (string) (new Decimal($number))->round($places, $mode);
if ($result !== $expect) {
print_r(compact("number", "places", "mode", "result", "expect"));
}
}
}
/* Test that round does not modify the original */
$number = new Decimal("1.2345");
$result = $number->round();
if ((string) $number !== "1.2345") {
var_dump("Mutated!", compact("number"));
}
?>
--EXPECT--
|
