[New-bugs-announce] [issue44503] Hide __enter__ calls in mock_open

[Pierre Ossman]

New submission from Pierre Ossman <ossman at cendio.se>:

I'd like to write this test case:

  with patch('builtins.open') as pyopen:
    mock_open(pyopen, read_data="foo")
    run()
    pyopen.assert_has_calls([call("filename", "wt"),
                             call().write("gazonk"),
                             call().close()])

and I shouldn't have to care if the code is written like this:

  def run():
    f = open("filename", "wt")
    try:
      write("gazonk")
    finally:
      f.close()

or like this:

  def run():
    with open("filename", "wt") as f:
      write("gazonk")

----------
components: Library (Lib)
messages: 396469
nosy: CendioOssman
priority: normal
severity: normal
status: open
title: Hide __enter__ calls in mock_open
type: enhancement

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44503>
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