/**
* It should sort and preserve order for unchanging comparisons.
*/
public function testSort()
{
$array = [['col1' => 20, 'col2' => 20], ['col1' => 20, 'col2' => 10], ['col1' => 10, 'col2' => 50], ['col1' => 10, 'col2' => 10], ['col1' => 10, 'col2' => 20]];
$expected = [['col1' => 10, 'col2' => 50], ['col1' => 10, 'col2' => 10], ['col1' => 10, 'col2' => 20], ['col1' => 20, 'col2' => 20], ['col1' => 20, 'col2' => 10]];
Sort::mergesort($array, function ($row1, $row2) {
return strcmp($row1['col1'], $row2['col1']);
});
$this->assertEquals($expected, $array);
}
/**
* Process the sorting, also break sorting.
*
* @param array $table
* @param Config $config
*
* @return array
*/
private function processSort(array $table, Config $config)
{
if ($config['sort']) {
$cols = array_reverse($config['sort']);
foreach ($cols as $colName => $direction) {
Sort::mergeSort($table, function ($elementA, $elementB) use($colName, $direction) {
if ($elementA[$colName] == $elementB[$colName]) {
return 0;
}
if ($direction === 'asc') {
return $elementA[$colName] < $elementB[$colName] ? -1 : 1;
}
return $elementA[$colName] > $elementB[$colName] ? -1 : 1;
});
}
}
if ($config['break']) {
foreach ($config['break'] as $colName) {
Sort::mergeSort($table, function ($elementA, $elementB) use($colName) {
if ($elementA[$colName] == $elementB[$colName]) {
return 0;
}
return $elementA[$colName] < $elementB[$colName] ? -1 : 1;
});
}
}
return $table;
}