The --testcases option of run-tests says how many test cases to build in
parallel. It automatically derives a jlevel from it by dividing the
number of cores + 1 by the number of parallel testcases. However, this
will typically result in a fractional number. Make doesn't like
fractional numbers as argument to -j.
Convert the number to integer (rounding down).
* br2_jlevel is an int, as multiprocessing.cpu_count() is an int, so it
will be always >=2 (cpu_count() raises an error if it can't determine
the number of CPU, so it will always return at least 1);
* args.testcases is an int, and is checked to be >=1
So br2_jlevel + args.testcases is guaranteed to always be bigger
than or equal to args.testcases, and the division thus bigger than 1.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[yann.morin.1998@free.fr:
- ensure division provide at least 1
- drop the test below
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Reorder imports using the isort utility to fix a warning from pylint3:
wrong-import-order: standard import "import multiprocessing" should be
placed before "import nose2"
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
According to PEP8 empty sequences should be checked as booleans.
Fixes the following PEP8 warning:
Do not use `len(SEQUENCE)` to determine if a sequence is empty
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Python 2.7 will not be maintained past 2020.
Many scripts on the tree are used during the build and should keep
Python 2 compatibility for a while.
This is not the case for the runtime test infra. It's meant to be run in
modern distros only, so it can safely switch to support Python 3 only.
An advantage of this approach is to have less scenarios to test in.
Otherwise every change to the test infra or runtime tests would need to
be tested against both versions of the interpreter, increasing the
effort of the developers, to ensure the compatibility to Python 2 was
not broken.
In order to accomplish the change to Python 3:
- change the shebang for run-tests;
- use Python 3 urllib as a drop-in replacement for Python 2 urllib2;
- when writing the downloaded binary files, explicitly open the output
file as binary;
- when subprocess is used to retrieve the text output from commands,
explicitly ask for text output. For this, use 'universal_newlines'
because 'text' was added only on Python 3.7;
- when pexpect is used to retrieve the text output from qemu or git,
explicitly ask for text output using 'encoding';
- the code using csv currently follows the example in the documentation
for the Python 2 module, change it to follow the example in the
documentation for the Python 3 module;
- fix the relative import for test_git.py to be Python 3 compliant.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Tested-by: Romain Naour <romain.naour@smile.fr>
Tested-by: Nicolas Carrier <nicolas.carrier@orolia.com>
Signed-off-by: Nicolas Carrier <nicolas.carrier@orolia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
The git tests don't need to do a full build, they only need to do a
configure and download and/or legal-info. More tests of that type will
be added in the future. Therefore, we want to have a test base class
that doesn't automatically do a full build in the setUp().
Add this new class as a superclass of the existing BRTest class, so we
don't need to update existing tests. Only the code in run-tests that
iterates over all subclasses of BRTest has to be adapted to use
BRConfigTest instead.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@datacom.ind.br>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Matthew Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Fix three issues with code style in our test infra:
- 'print' is now a function,
- exceptions need to be caught-assigned with the 'as' keyword,
- old-style "%s"%() formatting is deprecated.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Ricardo Martincoski <ricardo.martincoski@gmail.com>
[Thomas: drop indices in format strings.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Use an empty environment when calling make, but import PATH so the
buildroot tree under test can find binaries from the host machine.
Since environment variables are now ignored, move the handling of
BR2_DL_DIR to the defconfig to keep the current precedence of -d:
BR2_DL_DIR | -d DIR | test downloads | BR downloads
------------+----------+------------------+--------------
unset | unset | [error] | [error]
unset | set | in $(DIR) | in $(DIR)
set | unset | in $(BR2_DL_DIR) | in $(BR2_DL_DIR)
set | set | in $(DIR) | in $(DIR)
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Currently, the download directory, when specified with the -d option, is
only used to store the files downloaded by the testing infra, not those
downloaded by Buildroot.
So, we end up with this situation:
BR2_DL_DIR | -d DIR | test downloads | BR downloads
------------+----------+------------------+--------------
unset | unset | [error] | [error]
unset | set | in $(DIR) | in $(TOP_DIR)/dl
set | unset | in $(BR2_DL_DIR) | in $(BR2_DL_DIR)
set | set | in $(DIR) | in $(BR2_DL_DIR)
This is not very consistent.
We change the behaviour so that the value of -d always takes precedence,
and is used by Buildroot as well, giving this new behaviour:
BR2_DL_DIR | -d DIR | test downloads | BR downloads
------------+----------+------------------+--------------
unset | unset | [error] | [error]
unset | set | in $(DIR) | in $(DIR)
set | unset | in $(BR2_DL_DIR) | in $(BR2_DL_DIR)
set | set | in $(DIR) | in $(DIR)
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Fix the trivial warnings from flake8:
- remove modules imported but unused;
- use 2 lines before class or module level method;
- remove blank line at end of file.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
When we list the available tests, we use test_dir, which is set from
the path of the script. However, when we run the tests, we use the
hard-coded path.
Ditto to find the config file.
For consistency, always use test_dir.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Add a parameter to run-tests to act as a multiplier for all timeouts of
emulator.
It can be used to avoid sporadic failures on slow host machines as well
in elastic runners on the cloud.
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
[Arnout: rename multiplier to timeout_multiplier everywhere]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Let the user to pass -t to set the number of testcases to run
simultaneously.
When -j is not specified, calculate it to split the available cores
between the simultaneous testcases.
Example of auto calculated -j for cpu_count 8:
-t -j total
1 9 9
2 4 8
3 3 9
4 2 8
>=5 1 t
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Let the user to override the default BR2_JLEVEL used for each testcase.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This is what the manpages usually do, and what Python does with the
automatically-added -h/--help parameter:
Before the change:
$ ./support/testing/run-tests
[...]
optional arguments:
-h, --help show this help message and exit
--list, -l list of available test cases
--all, -a execute all test cases
After the change:
$ ./support/testing/run-tests
[...]
optional arguments:
-h, --help show this help message and exit
-l, --list list of available test cases
-a, --all execute all test cases
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit adds the core of a new testing infrastructure that allows to
perform runtime testing of Buildroot generated systems. This
infrastructure uses the Python unittest logic as its foundation.
This core infrastructure commit includes the following aspects:
- A base test class, called BRTest, defined in
support/testing/infra/basetest.py. This base test class inherited
from the Python provided unittest.TestCase, and must be subclassed by
all Buildroot test cases.
Its main purpose is to provide the Python unittest setUp() and
tearDown() methods. In our case, setUp() takes care of building the
Buildroot system described in the test case, and instantiate the
Emulator object in case runtime testing is needed. The tearDown()
method simply cleans things up (stop the emulator, remove the output
directory).
- A Builder class, defined in support/testing/infra/builder.py, simply
responsible for building the Buildroot system in each test case.
- An Emulator class, defined in support/testing/infra/emulator.py,
responsible for running the generated system under Qemu, allowing
each test case to run arbitrary commands inside the emulated system.
- A run-tests script, which is the entry point to start the tests.
Even though I wrote the original version of this small infrastructure, a
huge amount of rework and improvement has been done by Maxime
Hadjinlian, and squashed into this patch. So many thanks to Maxime for
cleaning up and improving my Python code!
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
