Failed asserting that an array has the subset Array &0 w Laravel'u i PhpUnit

Witajcie, natrafiłem na problem w laravelu i phpunit z którym nie mogę sobie poradzić. Po uruchomieniu testu wyrzuca mi taki error:

 Failed asserting that an array has the subset Array &0 (
    0 => Array &1 (
        'word' => 'asperiores'
        'language_id' => 1
        'level' => 'b2'
        'definition' => 'Possimus quo et perspiciatis sunt a natus.'
        'sentences' => '{"sentence1":"Et non officiis vel velit unde.","sentence2":"Rerum corporis debitis quas.","sentence3":"Omnis quibusdam similique magnam consequatur.","sentence4":"Labore dolor quia et cum ratione corporis ipsa."}'
        'category' => 'rerum'
        'topic' => 'magni'
        'part_of_speech' => 'rem'
        'image' => 'http://lorempixel.com/640/480/?22877'
        'grammar' => 'excepturi'
        'w_usage' => 'quas'
        'context' => 'nisi'
    )
    1 => Array &2 (
        'word' => 'vel'
        'language_id' => 1
        'level' => 'b2'
        'definition' => 'Consequuntur atque distinctio qui iusto maiores quia vitae.'
        'sentences' => '{"sentence1":"Placeat repellendus nulla cum ut modi vitae maxime nemo.","sentence2":"Illo quae culpa omnis esse ut aspernatur deserunt.","sentence3":"Rerum vel qui exercitationem nam beatae veniam sint placeat.","sentence4":"Autem ipsam odio inventore sint ut repudiandae."}'
        'category' => 'architecto'
        'topic' => 'et'
        'part_of_speech' => 'dolore'
        'image' => 'http://lorempixel.com/640/480/?89593'
        'grammar' => 'sed'
        'w_usage' => 'impedit'
        'context' => 'et'
    )
    2 => Array &3 (
        'word' => 'inventore'
        'language_id' => 1
        'level' => 'b2'
        'definition' => 'Odio delectus aspernatur atque quibusdam sint aut.'
        'sentences' => '{"sentence1":"Sunt quis vel ut qui quis hic.","sentence2":"Ut neque consectetur reprehenderit et alias.","sentence3":"Est ratione voluptatem labore ut reprehenderit adipisci reiciendis.","sentence4":"Est doloribus voluptatum consequatur unde nulla voluptatem."}'
        'category' => 'ad'
        'topic' => 'praesentium'
        'part_of_speech' => 'consequatur'
        'image' => 'http://lorempixel.com/640/480/?61920'
        'grammar' => 'sit'
        'w_usage' => 'et'
        'context' => 'aliquam'
    )
).

Przeszukałem wiele stron, wątków na stackoverflow, ale nie dalej nie wiem jak go rozwiązać. W załączniku dołączam niezbędny moim zdaniem kod i z góry dziękuję za pomoc :)