/**
* @covers ::calculate
* @dataProvider provideNumbers
*/
public function testCanCheckForIsApproximate($a, $b, $expectedResult)
{
// ----------------------------------------------------------------
// setup your test
// ----------------------------------------------------------------
// perform the change
$actualResult = CompareTwoNumbers::calculate($a, $b);
// ----------------------------------------------------------------
// test the results
$this->assertEquals($expectedResult, $actualResult);
}
/**
* compare a single part of a pre-release string
*
* each one of these can be:
*
* - a number (a string that's a number)
* - a string (a string that isn't a number)
*
* @param string $aPart
* @param string $bPart
* @return int
*/
public static function calculate($aPart, $bPart)
{
// what are we looking at?
$aPartIsNumeric = ctype_digit($aPart);
$bPartIsNumeric = ctype_digit($bPart);
if (!$aPartIsNumeric && !$bPartIsNumeric) {
// two strings to compare
return CompareTwoStrings::calculate($aPart, $bPart);
}
if (($retval = self::calculatePartDifference($aPartIsNumeric, $bPartIsNumeric)) !== CompareTwoNumbers::BOTH_ARE_EQUAL) {
return $retval;
}
// at this point, we have two numbers
return CompareTwoNumbers::calculate($aPart, $bPart);
}
/**
* compare the X.Y.Z parts of two version numbers
*
* @param array $a
* @param array $b
* @return int
* -1 if $aVer is smaller
* 0 if both are equal
* 1 if $aVer is larger
*/
private static function compareXyz($a, $b)
{
// compare each part in turn
foreach (['major', 'minor', 'patchLevel'] as $key) {
$aN = self::getVersionPart($a, $key, 0);
$bN = self::getVersionPart($b, $key, 0);
// compare the two parts
$res = CompareTwoNumbers::calculate($aN, $bN);
// are they different?
if ($res !== CompareTwoNumbers::BOTH_ARE_EQUAL) {
return $res;
}
}
// if we get here, then both $a and $b have the same X.Y.Z
return CompareTwoNumbers::BOTH_ARE_EQUAL;
}