/**
* Asserts the complexity for an index
*
* The complexity is always O(log(n)).
*
* @param IndexGenerator $generator Index generator
* @param SplitCounter $counter Split counter in binary search
*
* @return float
*/
protected function assertComplexity(IndexGenerator $generator, SplitCounter $counter)
{
if (\count($counter) == 0) {
return;
}
$this->assertLessThan(\log($generator->getIndexLength(), 2) * 2, \count($counter));
}
/**
* Tests searching
*
* @param IndexGenerator $generator Index generator
*
* @return void
* @dataProvider provideTestSearch
*/
public function testSearch(IndexGenerator $generator)
{
$index = $generator->getIndex();
foreach ($generator->getKeys() as $key) {
$result = $index->search($key);
$this->assertNotNull($result, "key: {$key}, max: {$generator->getMaximum()}," . " step: {$generator->getStepSize()}" . " length: {$generator->getIndexLength()}");
$expected = preg_quote($generator->generateData($key));
$this->assertRegExp("/{$expected}/", $result->getData());
}
}
/**
* @dataProvider provideTestAllValidRanges
*/
public function testAllValidRanges(IndexGenerator $generator)
{
$index = $generator->getIndex();
for ($length = 0; $length <= $generator->getIndexLength(); $length++) {
for ($min = $generator->getMinimum(); $min + $length <= $generator->getMaximum(); $min++) {
$range = new index\Range($min, $min + $length);
$range->setInclusive(true);
$foundKeys = index\IteratorUtil::toKeysArray($index->searchRange($range));
$expectedKeys = array();
for ($key = $range->getMin(); $key <= $range->getMax(); $key++) {
$expectedKeys[] = $key;
}
$this->assertEquals($expectedKeys, $foundKeys, "failed range[{$range->getMin()}, {$range->getMax()}] for index[{$generator->getMinimum()}, {$generator->getMaximum()}]");
}
}
}
