/**
* Test for scopeTrending
*/
public function testScopeTrending()
{
// get trending time limit
$trendingperiod = config('rap-battle.trendingperiod', 168);
$timeoldest = new Carbon();
$timeoldest->subHours($trendingperiod);
// create users
$user1 = factory(App\Models\User::class)->create();
$user2 = factory(App\Models\User::class)->create();
// create battles
for ($i = 0; $i < ($max_battles = 40); ++$i) {
$battle = new Battle();
$battle->rapper1_id = $user1->id;
$battle->rapper2_id = $user2->id;
$battle->votes_rapper1 = rand(0, 2 * $i);
$battle->votes_rapper2 = rand(0, 2 * $i);
// creation date: random value in valid range, every second out of range
$date = Carbon::now()->subHours(rand(0, $trendingperiod - 1) + ($i & 0x1 ? 0 : $trendingperiod));
$battle->created_at = $date->toDateTimeString();
// fake votes
if ($i < 20) {
// each second of these battles will be trending
$battle->votes_rapper1 = 1000 + $i;
$battle->votes_rapper2 = 500 + 2 * $i;
} else {
// these battles won't be trending
$battle->votes_rapper1 = 100 + $i;
$battle->votes_rapper2 = 50 + 2 * $i;
}
$battle->save();
}
// checks
$trending = Battle::trending()->get()->take(10)->keyBy('id');
// 10 trending battles out of 20 possible in time range
$this->assertEquals(10, $trending->count());
foreach ($trending as $battle) {
// check time range
$timediff = Carbon::parse($battle->created_at)->gt($timeoldest);
$this->assertTrue($timediff);
// check vote counts
$this->assertTrue(1000 <= $battle->votes_rapper1 && 1000 + $max_battles / 2 > $battle->votes_rapper1);
$this->assertTrue(500 <= $battle->votes_rapper2 && 500 + $max_battles > $battle->votes_rapper2);
}
}