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nova /tools /run-tests-for-diff.sh

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Make it easier to run a selection of tests relevant to ongoing work During development of a new git commit, locally running a whole unit or functional test suite to check every minor code change is prohibitively expensive. For maximum developer productivity and happiness, it's generally desirable to make the feedback loop of the traditional red/green cycle as quick as possible. So add run-tests-for-diff.sh and run-tests.py to the tools/ subdirectory, using a few tricks as explained below to help with this. run-tests.py takes a list of files on STDIN, filters the list for tests which can be run in the current tox virtualenv, and then runs them with the correct stestr options. run-tests-for-diff.sh is a simple wrapper around run-tests.py which determines which tests to run using output from "git diff". This allows running only the test files changed/added in the working tree: tools/run-tests-for-diff.sh or by a single commit: tools/run-tests-for-diff.sh mybranch^! or a range of commits, e.g. a branch containing a whole patch series for a blueprint: tools/run-tests-for-diff.sh gerrit/master..bp/my-blueprint It supports the same "-HEAD" invocation syntax as flake8wrap.sh (as used by the "fast8" tox environment): tools/run-tests-for-diff.sh -HEAD run-tests.py uses two tricks to make test runs as quick as possible: 1. It's (already) possible to speed up running of tests by source'ing the "activate" file for the desired tox virtualenv, e.g. source .tox/py36/bin/activate and then running stestr directly. This saves a few seconds by skipping the overhead introduced by running tox. 2. When only one test file needs to be run, specifying the -n option to stestr will skip the costly test discovery phase, saving several more valuable seconds. Future commits could build on top of this work, harnessing a framework such as watchdog / watchmedo[0] or Guard[1] in order to automatically run relevant tests every time your editor saves changes to a .py file. [0] https://github.com/gorakhargosh/watchdog - Python-based [1] https://guardgem.org - probably best in class, but Ruby-based so maybe unacceptable for use within Nova. Change-Id: I9a9bda5d29bbb8d8d77f769cd1abf7c42a18c36b
2019年08月19日 11:31:59 +01:00
#!/bin/bash
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
here=`dirname 0ドル`
if test -z "1ドル"; then
set -- HEAD
elif test "x1ドル" = "x-HEAD"; then
# Simulate behaviour from flake8wrap.sh
shift
set -- HEAD~1
fi
git diff --name-only "$@" | $here/run-tests.py