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--TEST--
Decimal::sqrt
--SKIPIF--
<?php
if (!extension_loaded("decimal")) echo "skip";
?>
--FILE--
<?php
use Decimal\Decimal;
/**
* Shortcut to construct a new decimal.
*/
function decimal(...$args) { return new Decimal(...$args); }
$tests = [
[decimal(), "0", 28],
[decimal("0.1", 5), "0.31623", 5],
[decimal("0.1"), "0.3162277660168379331998893544", 28],
[decimal("0.1", 50), "0.31622776601683793319988935444327185337195551393252", 50],
[decimal("144"), "12", 28],
[decimal("145", 3), "12.0", 3],
[decimal("145"), "12.04159457879229548012824103", 28],
[decimal( "1E-50"), "1E-25", 28],
[decimal("-1E-50"), "NAN", 28],
[decimal( "NAN"), "NAN", 28],
[decimal( "INF"), "INF", 28],
[decimal("-INF"), "NAN", 28],
];
foreach ($tests as $test) {
list($op1, $expect, $precision) = $test;
$result = $op1->sqrt();
if ((string) $result !== (string) $expect || $result->precision() !== $precision) {
print_r(compact("number", "result", "expect", "precision"));
}
}
/* Test that ceil does not modify the original */
$number = decimal("1.5");
$result = $number->sqrt();
if ((string) $number !== "1.5") {
var_dump("Mutated!", compact("number"));
}
?>
--EXPECT--
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