function testDebugInformationExcludedFromIteration()
{
$set = new RecommendationSet('X');
$set->addDebug(new Debug\SourceDocument('forum post', 1));
$set->add($rec = new Recommendation('forum post', 42));
$out = [];
foreach ($set as $r) {
$out[] = $r;
}
$this->assertSame($out, [$rec]);
}
function testEngineProvidesDebugInformation()
{
$engineSet = new EngineSet();
$engineSet->register('test-a', new Engine\FakeEngine([['type' => 'wiki page', 'object' => 'Content A'], new Debug\SourceDocument('wiki page', 'Content Z')]));
$comparator = new Comparator($engineSet);
$input = new Input\UserInput('bob');
$expect = new RecommendationSet('test-a');
$expect->add(new Recommendation('wiki page', 'Content A'));
$expect->addDebug(new Debug\SourceDocument('wiki page', 'Content Z'));
$this->assertEquals([$expect], $comparator->generate($input));
}