est</span><span class="o">.</span><span class="n">mark</span><span class="o">.</span><span class="n">parametrize</span><span class="p">(</span><span class="s2">&quot;dates&quot;</span><span class="p">,</span> <span class="p">[[</span><span class="s2">&quot;2020-06-01&quot;</span><span class="p">,</span> <span class="s2">&quot;2020-07-01&quot;</span><span class="p">],</span> <span class="p">[</span><span class="s2">&quot;2020-01-01&quot;</span><span class="p">,</span> <span class="s2">&quot;2020-02-01&quot;<