commit | 681e4c1015c02471e2313233c90012609ea37c6c | [log] [tgz] |
---|---|---|
author | Jared Pauletti <pauletti@google.com> | Wed Oct 23 18:33:34 2019 -0700 |
committer | Commit Bot <commit-bot@chromium.org> | Wed Dec 11 04:54:27 2019 +0000 |
tree | 32c42d06f152b18e55018c7553e1a2ff399d7a16 | |
parent | 14998bce604ceffe4c603d6465290bd86585bc14 [diff] |
autotest: packet_capturer: Adding VHT support The autotest start_capture method currently only supports configuration options for channels up to 40 MHz wide. VHT80 and VHT160 options are necessary to properly capture traffic on 80 MHz and 160 MHz bands from within autotest. BUG=chromium:1017533 TEST=Add packet_capture to network_WiFi_Perf (like in chromium:1959712). Start network_WiFi_Perf.vht80 with a DUT (caroline in my case), router, and pcap and then cancel it with Ctrl+C after iperf runs for a cycle or two. Find the output directory in the first few logging lines, then navigate to it. Find the pcap file in that directory (FILE=`find . -name "*.pcap"`), open it with wireshark, and filter based on `wlan.fc.type_subtype==0x28`. Export a new pcap with only these frames, and then parse it using tshark: `tshark -r ${FILE} -T fields -e radiotap.vht.bw | sort | uniq -c`. Verify that the majority is the value 4 (the value of this field corresponding to 80 MHz). Change-Id: I8dd0f5ddca427812909d434374d97be98a4e0940 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/1877829 Tested-by: Jared Pauletti <pauletti@google.com> Commit-Queue: Jared Pauletti <pauletti@google.com> Reviewed-by: Brian Norris <briannorris@chromium.org>
Autotest is a framework for fully automated testing. It was originally designed to test the Linux kernel, and expanded by the Chrome OS team to validate complete system images of Chrome OS and Android.
Autotest is composed of a number of modules that will help you to do stand alone tests or setup a fully automated test grid, depending on what you are up to. A non extensive list of functionality is:
A body of code to run tests on the device under test. In this setup, test logic executes on the machine being tested, and results are written to files for later collection from a development machine or lab infrastructure.
A body of code to run tests against a remote device under test. In this setup, test logic executes on a development machine or piece of lab infrastructure, and the device under test is controlled remotely via SSH/adb/some combination of the above.
Developer tools to execute one or more tests. test_that
for Chrome OS and test_droid
for Android allow developers to run tests against a device connected to their development machine on their desk. These tools are written so that the same test logic that runs in the lab will run at their desk, reducing the number of configurations under which tests are run.
Lab infrastructure to automate the running of tests. This infrastructure is capable of managing and running tests against thousands of devices in various lab environments. This includes code for both synchronous and asynchronous scheduling of tests. Tests are run against this hardware daily to validate every build of Chrome OS.
Infrastructure to set up miniature replicas of a full lab. A full lab does entail a certain amount of administrative work which isn't appropriate for a work group interested in automated tests against a small set of devices. Since this scale is common during device bringup, a special setup, called Moblab, allows a natural progressing from desk -> mini lab -> full lab.
See the guides to test_that
and test_droid
:
See the best practices guide, existing tests, and comments in the code.
git clone https://chromium.googlesource.com/chromiumos/third_party/autotest
See the coding style guide for guidance on submitting patches.
You need to run utils/build_externals.py
to set up the dependencies for pre-upload hook tests.