title: Remove FAILURES from pytest output
body: <p>Pytest is new to me. We try to verify that we have all expected files in a project.</p>
  
  <p>I like every part of the pytest output except for the detailed FAILURES that will confuse our non-programmers.</p>
  
  <p>How can we suppress the FAILURES output?</p>
  
  <p><strong>Current code:</strong></p>
  
  <pre><code>import os.path
  import pytest
  
  spec = {"expected_files": ["Dockerfile", "Duckerfile", "Daskerfile"]}
  
  @pytest.mark.parametrize("expected_file", spec['expected_files'])
  def test_expected_file_is_in_project(expected_file):
      assert os.path.isfile(expected_file), "File \""+expected_file+"\" not found in project"
  </code></pre>
  
  <p><strong>Output after running the "pytest -v" command</strong></p>
  
  <p><a href="https://i.stack.imgur.com/SxIfB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/SxIfB.png" alt="Output after running the &quot;pytest -v&quot; command"></a></p>