Commit Graph

27 Commits

Author SHA1 Message Date
Thomas Petazzoni
193dfffa83 support/testing: use more recent toolchains
With the hard disk crash of autobuild.b.o, we lost old toolchains, so
use the latest toolchains, which have been restored.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-10-21 19:48:30 +02:00
Ricardo Martincoski
ef8d1f1b15 support/testing: fix code style
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>
2017-10-06 18:56:49 +02:00
Ricardo Martincoski
2927f412be support/testing: standardize defconfig fragments style
Change all defconfig fragments to take advantage of
"cf3cd4388a support/tests: allow properly indented config fragment".

Make each defconfig fragment:
 - start after a backslash;
 - be declared as a multi-line string literal;
 - be indented one level more than the variable that contains it.

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>
2017-10-06 18:56:06 +02:00
Ricardo Martincoski
4a1d220d9e support/testing: allow to indent ccache defconfig fragment
Move the strip out of leading spaces in defconfig fragments from the
BRTest class to the Builder class. It actually postpones the strip out,
consequentially allowing test cases to post-process the defconfig in
their own __init__ before calling the __init__ method from BRTest.

Moving this code to the Builder class also allows any new test class
that inherits from BRTest to reuse the same code even if the new class
overrides the setUp method.

At same time, prepend a newline to the jlevel handling otherwise it
would stop working for defconfig fragments that don't end in a newline.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
2017-10-06 18:53:13 +02:00
Ricardo Martincoski
6e45e33f27 support/testing: allow to use a multiplier for timeouts
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>
2017-08-10 10:08:06 +02:00
Ricardo Martincoski
d8ab6b2b54 testing/infra/emulator: remove qemu warnings about audio
The default audio backend for qemu is configured at compile time. It
generates annoying warning messages to qemu's stderr when running our
tests, like these:
pulseaudio: set_sink_input_volume() failed
pulseaudio: Reason: Invalid argument
pulseaudio: set_sink_input_mute() failed
pulseaudio: Reason: Invalid argument

Explicitly set the audio backend to "none" at runtime to remove those
messages from our logs. There is no command line argument for this, so
use an environment variable when starting qemu.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-31 21:26:06 +02:00
Ricardo Martincoski
b6bbb0782a testing/infra/basetest: move jlevel logic to constructor
As suggested by Arnout in [1].

While at it, simplify the logic by always appending the BR2_JLEVEL and
defaulting to 0 (the value copied from Config.in is used for 5 years now
and is very unlikely to change).

[1] http://patchwork.ozlabs.org/patch/790525/

Suggested-by: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-24 17:51:06 +02:00
Ricardo Martincoski
78c8958619 support/testing: fix run-tests -j
Since commit cf3cd4388a the -j option is
silently ignored.

The configuration lines are processed using '\n'.join().
This function adds intervening occurrences of the separator, but the
resulting string does not end at a separator.
 >>> "n".join(["a","b"])
 'anb'
It results in a defconfig that does not end in a newline.

When BR2_JLEVEL is added by -j logic to the defconfig it ends up
concatenated to the last line of the defconfig.
 BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM=yBR2_JLEVEL=7
The resulting .config has the default BR2_JLEVEL=0.

Instead of just workaround this problem by adding a newline before
BR2_JLEVEL when -j is used, make the defconfig to end in a newline since
it is a more future-proof solution.

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>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-24 17:50:52 +02:00
Ricardo Martincoski
046f968775 testing/infra/builder: dump defconfig to log
The defconfig is composed on-the-fly by test infra + tests.

Dump it to the logfile before running 'make olddefconfig' so it can
easily analysed when debugging.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-24 17:50:45 +02:00
Andrey Smirnov
255b8ab406 testing/infra/emulator: allow to specify pexpect timeout
Some commands take more than 5 seconds to complete under QEMU, so add
provisions to allow individual unit-test to specify different duration
to avoid false negative test failures.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Tested-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-22 22:37:06 +02:00
Yann E. MORIN
cf3cd4388a support/tests: allow properly indented config fragment
Currently, defining a config fragment in the runtime test infra requires
that the fragment not to be indented. This is beark, and causes grievance
when looking at the code (e.g. to fix it).

Just strip out all leading spaces/tabs when writing the configuration
lines into the config file, allowing in-line indented config fragments,
like so:

    class TestFoo(bla):
        config = bla.config + \
            """
            FOO=y
            # BAR is not set
            """

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-18 23:46:09 +02:00
Arnout Vandecappelle
704db1586c support/testing: unbreak run-tests -l
In commit b78b50465c, the initialisation
of BRTest.builddir was moved to the __init__ function. However, it is
set based on BRTest.outputdir and that is only set when the -o argument
is given to run-tests. When called as "run-tests -l", there is no -o
argument so BRTest.outputdir remains unset.

To fix, keep BRTest.builddir at None when BRTest.outputdir is None.

While we're at it, drop the direct access to the class member. If a
subclass wishes to set outputdir to something else before calling
BRTest.__init__, they are free to do so.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reported-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-10 23:51:33 +02:00
Arnout Vandecappelle
b78b50465c support/testing: move BRTest initialisation to __init__
BRTest's setUp() method contains a few assignments that initialize its
member variables. Since we will want to use these in test case
overrides, move them to the __init__ function.

Also allow the config member to be overridden, rather than always
taking the class member.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-10 17:46:25 +02:00
Arnout Vandecappelle
73e7bcdd87 support/testing: strip /usr/ part from HOST_DIR
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-10 17:46:22 +02:00
Ricardo Martincoski
9bb306bd64 support/testing: large timeout for login prompt
When running multiple instances of emulator in parallel, the login
prompt can take some time to appear.

Use a large timeout when waiting for the prompt to avoid random
failures.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-01 16:05:14 +02:00
Ricardo Martincoski
1df8042ead support/testing: allow to set BR2_JLEVEL
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>
2017-07-01 16:05:14 +02:00
Ricardo Martincoski
abe64676d5 support/testing: fix code style in emulator
Remove unused import.
Use 2 empty lines before a class.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-01 16:05:14 +02:00
Ricardo Martincoski
4a622fe4b6 support/testing: use pexpect.expect directly
When using pexpect there is no need for a helper function. Just use
expect() directly everywhere.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-01 16:05:14 +02:00
Ricardo Martincoski
77b4b948fc support/testing: use pexpect.sendline directly
When using pexpect there is no need for a helper function. Just use
sendline() directly everywhere.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-01 16:05:14 +02:00
Ricardo Martincoski
e664c5f71c support/testing: let pexpect write stdout to log
When the parameter logfile is passed to spawn(), pexpect sends both
stdin and stdout to the logfile and it creates a double echo effect.

One way to avoid the double echo in the logfile would be to disable the
echo on the terminal just after login ("stty -echo"), but double echo of
user and password would remain.

Instead of that, send only the stdout to the logfile using the
logfile_read property.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-01 16:05:14 +02:00
Ricardo Martincoski
8ebc227806 support/testing: use qemu stdio in emulator
Instead of redirecting qemu serial to telnet, redirect it to stdio.

It allows to run testcases in parallel without random failing caused by
two emulators trying to use the same telnet port (1234).

'qemu -serial stdio' returns some extra <CR> characters, so remove them
from the log.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-01 16:05:14 +02:00
Ricardo Martincoski
eb0fab80f6 support/testing: use pexpect in emulator
Replace subprocess + telnetlib with pexpect.

Use the telnet installed on the host machine instead of telnetlib, while
the serial from qemu is not yet redirected to stdio.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-07-01 16:05:14 +02:00
Luca Ceresoli
d332f2c521 support/testing: simplify logging by keeping the log file open
We currently call infra.smart_open() to open log files each time we
need to write to them.

Opening the file once in the constructor of Builder and Emulator and
writing to it whenever needed is simpler and slightly more efficient.

Remove smart_open and instead create a new open_log_file() function
which just opens the logfile. Also let it compute the filename, in
order to simplify even further the Builder and Emulator code.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-05-17 21:59:58 +02:00
Luca Ceresoli
ee72dbe576 support/testing: document get_elf_prog_interpreter
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-05-17 21:56:38 +02:00
Luca Ceresoli
bab4a2fd37 support/testing: remove unused variable
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-05-10 23:42:27 +02:00
Luca Ceresoli
08151c6aec support/testing: show messages in a more readable format
Currently messages from run-tests are quite unpleasant:

[br-tests/TestPostScripts/2017-05-09 15:51:57] Building
[br-tests/TestPostScripts/2017-05-09 15:52:23] Building done
[br-tests/TestPostScripts/2017-05-09 15:52:23] Cleaning up
.[br-tests/TestNoTimezone/2017-05-09 15:52:23] Starting
[br-tests/TestNoTimezone/2017-05-09 15:52:23] Building
[br-tests/TestNoTimezone/2017-05-09 15:53:17] Building done
[br-tests/TestNoTimezone/2017-05-09 15:53:22] Cleaning up
.[br-tests/TestGlibcNonDefaultLimitedTimezone/2017-05-09 15:53:22] Starting
[br-tests/TestGlibcNonDefaultLimitedTimezone/2017-05-09 15:53:22] Building
[br-tests/TestGlibcNonDefaultLimitedTimezone/2017-05-09 15:54:33] Building done
[br-tests/TestGlibcNonDefaultLimitedTimezone/2017-05-09 15:54:37] Cleaning up
[...]

Change them in a more readable way by removing the date and using a
columnar style:

15:12:22 TestPostScripts                          Starting
15:12:25 TestPostScripts                          Building
15:12:48 TestPostScripts                          Building done
15:12:48 TestPostScripts                          Cleaning up
.15:12:48 TestNoTimezone                           Starting
15:12:54 TestNoTimezone                           Building
15:13:44 TestNoTimezone                           Building done
15:13:49 TestNoTimezone                           Cleaning up
.15:13:49 TestGlibcNonDefaultLimitedTimezone       Starting
15:14:00 TestGlibcNonDefaultLimitedTimezone       Building
15:14:56 TestGlibcNonDefaultLimitedTimezone       Building done
15:15:01 TestGlibcNonDefaultLimitedTimezone       Cleaning up
[...]

Note the '.' and other characters presented by nose2 are still
printed. They are not affected by this change.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2017-05-10 23:42:13 +02:00
Thomas Petazzoni
a732fb222b support/testing: core testing infrastructure
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>
2017-05-07 22:04:54 +02:00