Commit Graph

42 Commits

Author SHA1 Message Date
Hugo van Kemenade
1857bf5570
Merge pull request #5259 from radarhere/warns 2021-02-17 21:31:15 +02:00
Andrew Murray
83542c42bf Added context managers 2021-02-11 21:43:54 +11:00
Andrew Murray
4a0569e97f Changed zero length assertions to falsy 2021-02-11 13:48:31 +11:00
Andrew Murray
01be700081 Fixed asserting that no warnings were raised 2021-02-10 23:37:55 +11:00
Hugo van Kemenade
dd87dd50c0 Update to isort 5 with Black profile support 2020-08-08 22:39:29 +03:00
Sam Morgan
74e02e6c4e Add test for PSD mimetype 2020-07-16 08:26:42 -07:00
Hugo
dda6145fce Since Python 3.3 IOError and WindowsError have been merged into OSError 2020-04-10 12:57:29 +03:00
Hugo
affade7595 Replace unittest with pytest 2020-02-13 12:15:05 +02:00
Hugo
38bf862185 Replace PillowTestCase.assert_warning with pytest.warns 2020-02-03 11:11:32 +02:00
Hugo
a4bf9fa036 Convert most PillowTestCase methods to pytest 2020-02-02 12:26:01 +02:00
Andrew Murray
d79f2bb7dc Corrected context manager test 2019-11-06 20:12:19 +11:00
Jon Dufresne
4cd4adddc3 Improve handling of file resources
Follow Python's file object semantics. User code is responsible for
closing resources (usually through a context manager) in a deterministic
way.

To achieve this, remove __del__ functions. These functions used to
closed open file handlers in an attempt to silence Python
ResourceWarnings. However, using __del__ has the following drawbacks:

- __del__ isn't called until the object's reference count reaches 0.
  Therefore, resource handlers remain open or in use longer than
  necessary.

- The __del__ method isn't guaranteed to execute on system exit. See the
  Python documentation:

  https://docs.python.org/3/reference/datamodel.html#object.__del__

  > It is not guaranteed that __del__() methods are called for objects
  > that still exist when the interpreter exits.

- Exceptions that occur inside __del__ are ignored instead of raised.
  This has the potential of hiding bugs. This is also in the Python
  documentation:

  > Warning: Due to the precarious circumstances under which __del__()
  > methods are invoked, exceptions that occur during their execution
  > are ignored, and a warning is printed to sys.stderr instead.

Instead, always close resource handlers when they are no longer in use.
This will close the file handler at a specified point in the user's code
and not wait until the interpreter chooses to. It is always guaranteed
to run. And, if an exception occurs while closing the file handler, the
bug will not be ignored.

Now, when code receives a ResourceWarning, it will highlight an area
that is mishandling resources. It should not simply be silenced, but
fixed by closing resources with a context manager.

All warnings that were emitted during tests have been cleaned up. To
enable warnings, I passed the `-Wa` CLI option to Python. This exposed
some mishandling of resources in ImageFile.__init__() and
SpiderImagePlugin.loadImageSeries(), they too were fixed.
2019-10-12 08:27:17 -07:00
Andrew Murray
87c43b66a5 Corrected negative seeks 2019-09-30 18:31:18 +10:00
Jon Dufresne
d50445ff30 Introduce isort to automate import ordering and formatting
Similar to the recent adoption of Black. isort is a Python utility to
sort imports alphabetically and automatically separate into sections. By
using isort, contributors can quickly and automatically conform to the
projects style without thinking. Just let the tool do it.

Uses the configuration recommended by the Black to avoid conflicts of
style.

Rewrite TestImageQt.test_deprecated to no rely on import order.
2019-07-06 16:11:35 -07:00
Hugo
488a0170a3 Format with Black 2019-06-19 09:30:10 +03:00
Hugo
1b99362f3d Merge remote-tracking branch 'upstream/master' into run-black 2019-06-19 09:29:28 +03:00
Hugo
f87821e010 Format with Black 2019-06-13 18:54:11 +03:00
Andrew Murray
e1e35cc819 Close internal fp when closing and deleting 2019-06-12 20:12:03 +10:00
Andrew Murray
72d5ee3bfa Do not close exclusive fp after loading 2019-06-12 20:10:28 +10:00
Jon Dufresne
4de5477b61 Remove unnecessary unittest.main() boilerplate from test files
With the introduction and use of pytest, it is simple and easy to
execute specific tests in isolation through documented command line
arguments. Either by specifying the module path or through the `-k
EXPRESSION` argument. There is no longer any need to provide the
boilerplate:

    if __name__ == '__main__':
        unittest.main()

To every test file. It is simply noise.

The pattern remains in test files that aren't named with `test_*` as
those files are not discovered and executed by pytest by default.
2019-02-03 10:10:16 -08:00
Jon Dufresne
7da17ad41e Improve pytest configuration to allow specific tests as CLI args
The previous test configuration made it difficult to run a single test
with the pytest CLI. There were two major issues:

- The Tests directory was not a package. It now includes a __init__.py
  file and imports from other tests modules are done with relative
  imports.

- setup.cfg always specified the Tests directory. So even if a specific
  test were specified as a CLI arg, this configuration would also always
  include all tests. This configuration has been removed to allow
  specifying a single test on the command line.

Contributors can now run specific tests with a single command such as:

  $ tox -e py37 -- Tests/test_file_pdf.py::TestFilePdf.test_rgb

This makes it easy and faster to iterate on a single test failure and is
very familiar to those that have previously used tox and pytest.

When running tox or pytest with no arguments, they still discover and
runs all tests in the Tests directory.
2019-01-13 09:00:12 -08:00
Andrew Murray
c8b65f4efd Added _min_frame property 2017-09-30 13:33:13 +10:00
Andrew Murray
9e843a2d9b Changed format of lambda calls 2017-09-01 21:05:40 +10:00
wiredfool
8323ab1149 Merge pull request #2447 from hugovk/test-mic
Test MicImagePlugin for correctness
2017-06-13 22:20:44 +01:00
Andrew Murray
e8cba27bb1 Changed assert checks to more specific versions 2017-06-03 14:04:54 +10:00
Hugo
1242b77872 Fix typos 2017-03-13 07:58:24 +02:00
Hugo
df2a031941 Test PSD with and without ICC profile 2017-02-27 17:21:27 +02:00
Hugo
921a25d144 Test PSD seek 2017-02-27 16:20:18 +02:00
Hugo
5c3b10ee87 Test PSD for similarity 2017-02-27 16:20:18 +02:00
Jon Dufresne
a33939f5c3 Remove unused, open files at top level of tests.
The data read from the file was unused. The files remained opened and
were never explicitly closed.

Fixes some instances of warnings during tests:

"ResourceWarning: unclosed file ..."
2016-11-01 06:34:17 -07:00
homm
1ba4e9e5ba remove end of file banner from all files 2016-07-10 14:11:28 +03:00
Andrew Murray
309ab1fc3d Various Flake8 fixes 2015-07-03 16:22:56 +10:00
Andrew Murray
a06b59bd52 Added various tests 2015-07-03 15:03:25 +10:00
Andrew Murray
d20eef450b Added is_animated 2015-06-30 13:25:00 +10:00
Andrew Murray
1111e9fb35 Fixed frame position when seeking past the end of file 2015-06-19 00:49:18 +10:00
Andrew Murray
46f439604c Added tests 2015-06-08 01:02:43 +10:00
Andrew Murray
ee34d6843b Further health fixes 2015-04-24 18:24:52 +10:00
Hugo
468cea1be0 Replace lena.psd with hopper.psd 2014-09-23 13:53:51 +03:00
hugovk
cf04a9a0d2 Remove unused tearDownModule 2014-07-07 20:03:50 +03:00
hugovk
78003ca473 Update paths to Tests/images/ instead of Images/ 2014-06-23 09:19:29 +03:00
hugovk
3ec505958e Convert old tests to use unittest 2014-06-10 12:10:47 +03:00
Brian Crowell
9921d838e4 py3k: Add Photoshop sanity check 2013-01-10 08:47:01 -06:00