Function pytest_assertrepr_compare

tests/conftest.py:206–237

Provides a hook for outputting type-specific assertion messages Expected to return a list or strings, where each string will be printed as a new line in the result output report on assertion failure.

(op, left, right)

def pytest_assertrepr_compare(op, left, right):
  """
  Provides a hook for outputting type-specific assertion messages

  Expected to return a list or strings, where each string will be printed as a new line
  in the result output report on assertion failure.
  """
  if isinstance(left, QueryTestResult) and isinstance(right, QueryTestResult) and \
     op == "==":
    result = ['Comparing QueryTestResults (expected vs actual):']
    for l, r in zip(left.rows, right.rows):
      result.append("%s == %s" % (l, r) if l == r else "%s != %s" % (l, r))
    if len(left.rows) != len(right.rows):
      result.append('Number of rows returned (expected vs actual): '
                    '%d != %d' % (len(left.rows), len(right.rows)))

    # pytest has a bug/limitation where it will truncate long custom assertion messages
    # (it has a hardcoded string length limit of 80*8 characters). To ensure this info
    # isn't lost, always log the assertion message.
    LOG.error('\n'.join(result))
    return result

  # pytest supports printing the diff for a set equality check, but does not do
  # so well when we're doing a subset check. This handles that situation.
  if isinstance(left, set) and isinstance(right, set) and op == '<=':
    # If expected is not a subset of actual, print out the set difference.
    result = ['Items in expected results not found in actual results:']
    result.extend(list(left - right))
    result.append('Items in actual results:')
    result.extend(list(right))
    LOG.error('\n'.join(result))
    return result


def pytest_xdist_setupnodes(config, specs):