public function testClearRemovesAllSavedResults()
{
$this->queryResultsCollection->saveResults($sourceExpression = $this->queryable->getExpression(), 'test');
$this->queryResultsCollection->saveResults($keysExpression = $this->queryable->keys()->getExpression(), 'keys');
$this->assertComputesResult($sourceExpression, 'test');
$this->assertComputesResult($keysExpression, 'keys');
$this->queryResultsCollection->clearResults();
$this->assertCannotComputesResult($sourceExpression);
$this->assertCannotComputesResult($keysExpression);
}