for(Anime::factory()) ->for(Series::factory()) ->createOne(); static::assertInstanceOf(BelongsTo::class, $animeSeries->anime()); static::assertInstanceOf(Anime::class, $animeSeries->anime()->first()); } /** * An AnimeSeries shall belong to a Series. * * @return void */ public function testSeries(): void { $animeSeries = AnimeSeries::factory() ->for(Anime::factory()) ->for(Series::factory()) ->createOne(); static::assertInstanceOf(BelongsTo::class, $animeSeries->series()); static::assertInstanceOf(Series::class, $animeSeries->series()->first()); } }