title: Test killed with quit: ran too long
body: <p>I run <code>go test</code> and got timout error:</p>
  
  <pre><code>*** Test killed with quit: ran too long (10m0s).
  FAIL    call/httptest   600.050s
  </code></pre>
  
  <p>How to extend timeout and make it bigger than 10 minutes?</p>