n class="token punctuation">.</span>alert<span class="token punctuation">;</span> <span class="token comment">// store a reference to window.alert</span>
  <span class="token punctuation">}</span><span class="token punctuation">,</span>

  <span class="token function-variable function">afterEach</span><span class="token operator">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    wi