 punctuation">.</span><span class="token function">levelUp</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

    assert<span class="token punctuation">.</span><span class="token function">equal</span><span class="token punctuation">(</span>player<span class="token punctuation">.</span>level<span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuat