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These libraries provide backports of Python 3's stdlib components to Python 2. As we only support Python 3, we can simply use the stdlib now. This pull request does the following:
* removes some unneeded compatibility code for the old spelling of `assertRaisesRegex`
* replaces invocations of the Python 2-only `assertItemsEqual` with its new name, `assertCountEqual`
* replaces all usage of `unittest2` with `unittest`
* replaces all usage of `contextlib2` with `contextlib`
* drops `unittest2` and `contextlib2` from requirements files and tox.ini
It also rewrites some `test_azure` helpers to use bare asserts. We were seeing a strange error in xenial builds of this branch which appear to be stemming from the AssertionError that pytest produces being _different_ from the standard AssertionError. This means that the modified helpers weren't behaving correctly, because they weren't catching AssertionErrors as one would expect. (I believe this is related, in some way, to https://github.com/pytest-dev/pytest/issues/645, but the only version of pytest where we're affected is so far in the past that it's not worth pursuing it any further as we have a workaround.)
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As the nose docs[0] themselves note, it has been in maintenance mode for the past several years. pytest is an actively developed, featureful and popular alternative that the nose docs themselves recommend. See [1] for more details about the thinking here.
(This PR also removes stale tox definitions, instead of modifying them.)
[0] https://nose.readthedocs.io/en/latest/
[1] https://lists.launchpad.net/cloud-init/msg00245.html
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* cloudinit: replace "import mock" with "from unittest import mock"
* test-requirements.txt: drop mock
Co-authored-by: Chad Smith <chad.smith@canonical.com>
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When the style/checking dependencies were updated in
test-requirements.txt, the debian package build dependencies created
by ./packages/bddeb were also updated. Pycodestyle was added to the list
in order to pin its version. That broke the package build for 16.04. The
reason for this is simply that python3-pycodestyle is not available in
16.04.
The change here is to remove style dependencies from test-requirements,
and add them to the tox environments directly. We had previously changed
the package build process to not run pep8 or flake8 simply to avoid having
to code to N different versions of style checkers (3bcb72c593f).
The link between package build and test-requirements still exists, though.
So future breakage can occur if any package is added to
test-requirements.txt (or requirements.txt) if the target distro release
does not have a python3-<packagename> in its archive.
There is also a bit of a tox.ini cleanup here, in that we do not have to
explictly list '-rrequirements.txt' as the setup.py pulls those in. And
lastly, we drop the -rtest-requirements.txt from the base 'testenv', and
add these test requirements only to environments that need to run test.
Finally, a change to packages/debian/control.in to drop the build
dependencies that were listed for style checking and also a dependency
on iproute2 which was a bad unit test that has been previously fixed.
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This just moves flake8 and related tools up to newer versions and fixes
the complaints associated with that.
We added to the list of flake8 ignores:
H102: do not put vim info in source files
H304: no relative imports
Also updates and pins the following in the flake8 environment:
pep8: 1.7.0 => drop (although hacking still pulls it in).
pyflakes 1.1.0 => 1.5.0
hacking 0.10.2 => 0.13.0
flake8 2.5.4 => 3.3.0
pycodestyle none => 2.3.1
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First step in increasing coverage is knowing what coverage
is currently at. By default, tox only runs coverage on py3 as it
is slower to run with coverage.
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painful, and not perfect, but at this point the output builds
on a vivid system python2 (bddeb --python2) or python3.
* remove use of cheetah by bddeb in favor of builtin renderer
* add '--python2' flag to bddeb and knowledge of python 2 and python3
package names.
* read-dependencies can now read test-requirements also.
* differenciate from build-requirements and runtime requirements.
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This also adds mock as a test dependency, as we are looking to migrate
away from mocker.
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pylint was not passing, and per smoser in IRC pylint can/should be
removed.
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Fixed all complaints from running "make pep8". Also version locked
pep8 in test-requirements.txt to ensure that pep8 requirements don't
change without an explicit commit.
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