>current_time</span> <span class="special">);</span>
<span class="special">}</span>

<span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span> <span class="identifier">test_update</span> <span class="special">)</span>
<span class="special">{</span>
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">field_name</span> <span class="special">=</span> <span class="string">"Volume"</span><span class="special"