mirror of
https://github.com/torvalds/linux.git
synced 2024-12-14 07:02:23 +00:00
103 lines
3.4 KiB
Plaintext
103 lines
3.4 KiB
Plaintext
|
tdc - Linux Traffic Control (tc) unit testing suite
|
||
|
|
||
|
Author: Lucas Bates - lucasb@mojatatu.com
|
||
|
|
||
|
tdc is a Python script to load tc unit tests from a separate JSON file and
|
||
|
execute them inside a network namespace dedicated to the task.
|
||
|
|
||
|
|
||
|
REQUIREMENTS
|
||
|
------------
|
||
|
|
||
|
* Minimum Python version of 3.4. Earlier 3.X versions may work but are not
|
||
|
guaranteed.
|
||
|
|
||
|
* The kernel must have network namespace support
|
||
|
|
||
|
* The kernel must have veth support available, as a veth pair is created
|
||
|
prior to running the tests.
|
||
|
|
||
|
* All tc-related features must be built in or available as modules.
|
||
|
To check what is required in current setup run:
|
||
|
./tdc.py -c
|
||
|
|
||
|
Note:
|
||
|
In the current release, tdc run will abort due to a failure in setup or
|
||
|
teardown commands - which includes not being able to run a test simply
|
||
|
because the kernel did not support a specific feature. (This will be
|
||
|
handled in a future version - the current workaround is to run the tests
|
||
|
on specific test categories that your kernel supports)
|
||
|
|
||
|
|
||
|
BEFORE YOU RUN
|
||
|
--------------
|
||
|
|
||
|
The path to the tc executable that will be most commonly tested can be defined
|
||
|
in the tdc_config.py file. Find the 'TC' entry in the NAMES dictionary and
|
||
|
define the path.
|
||
|
|
||
|
If you need to test a different tc executable on the fly, you can do so by
|
||
|
using the -p option when running tdc:
|
||
|
./tdc.py -p /path/to/tc
|
||
|
|
||
|
|
||
|
RUNNING TDC
|
||
|
-----------
|
||
|
|
||
|
To use tdc, root privileges are required. tdc will not run otherwise.
|
||
|
|
||
|
All tests are executed inside a network namespace to prevent conflicts
|
||
|
within the host.
|
||
|
|
||
|
Running tdc without any arguments will run all tests. Refer to the section
|
||
|
on command line arguments for more information, or run:
|
||
|
./tdc.py -h
|
||
|
|
||
|
tdc will list the test names as they are being run, and print a summary in
|
||
|
TAP (Test Anything Protocol) format when they are done. If tests fail,
|
||
|
output captured from the failing test will be printed immediately following
|
||
|
the failed test in the TAP output.
|
||
|
|
||
|
|
||
|
USER-DEFINED CONSTANTS
|
||
|
----------------------
|
||
|
|
||
|
The tdc_config.py file contains multiple values that can be altered to suit
|
||
|
your needs. Any value in the NAMES dictionary can be altered without affecting
|
||
|
the tests to be run. These values are used in the tc commands that will be
|
||
|
executed as part of the test. More will be added as test cases require.
|
||
|
|
||
|
Example:
|
||
|
$TC qdisc add dev $DEV1 ingress
|
||
|
|
||
|
|
||
|
COMMAND LINE ARGUMENTS
|
||
|
----------------------
|
||
|
|
||
|
Run tdc.py -h to see the full list of available arguments.
|
||
|
|
||
|
-p PATH Specify the tc executable located at PATH to be used on this
|
||
|
test run
|
||
|
-c Show the available test case categories in this test file
|
||
|
-c CATEGORY Run only tests that belong to CATEGORY
|
||
|
-f FILE Read test cases from the JSON file named FILE
|
||
|
-l [CATEGORY] List all test cases in the JSON file. If CATEGORY is
|
||
|
specified, list test cases matching that category.
|
||
|
-s ID Show the test case matching ID
|
||
|
-e ID Execute the test case identified by ID
|
||
|
-i Generate unique ID numbers for test cases with no existing
|
||
|
ID number
|
||
|
|
||
|
|
||
|
ACKNOWLEDGEMENTS
|
||
|
----------------
|
||
|
|
||
|
Thanks to:
|
||
|
|
||
|
Jamal Hadi Salim, for providing valuable test cases
|
||
|
Keara Leibovitz, who wrote the CLI test driver that I used as a base for the
|
||
|
first version of the tc testing suite. This work was presented at
|
||
|
Netdev 1.2 Tokyo in October 2016.
|
||
|
Samir Hussain, for providing help while I dove into Python for the first time
|
||
|
and being a second eye for this code.
|