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Project Eideticker

Project Eideticker is an automated test harness that captures and analyzes browser output via HDMI. It currently only supports various browsers (Fennec, Stock) on Android, but support for other platforms is planned. There is experimental support for B2G on the pandaboard.


  • Linux system with zip, ffmpeg, g++, python 2.7 development and virtualenv installed. On Ubuntu, you can get this setup by running:

    sudo apt-get install -y zip ffmpeg g++ python2.7-dev python-virtualenv

  • Blackmagic Design DeckLink HD Extreme 3D card and the appropriate drivers if you want to actually capture video (it is possible to use the Eideticker harness without the video capture step, which can be useful for certain cases: see below).

  • Installed Android SDK with the tools in your path. Please follow the instructions at

  • A supported mobile phone running Android with Orangutan installed in `/system/ Eideticker's tests are specifically tuned for specific screen dimensions. Currently only the LG G2X (running in portrait mode) and the Galaxy Nexus (running in landscape) are supported. Your device must also be rooted and, if using SUTAgent, you must configure the su binary to automatically allow SUTAgent to run commands as root in silent mode (so that notifications don't pop up while running tests). For information on installing Orangutan, see that project's README at


Run in the root directory to set everything up.


Eideticker is meant to be run in a virtualenv, so the first step is to set that up in your shell by running this command within the root directory:

source ./bin/activate

The next step depends on whether you're using ADB or SUTAgent to interface with the device. If the former, just connect your Android device to your computer's USB port. That's it, you should now be set to run tests!

If you're using SUTAgent, you'll want to start the SUTAgent app, note the ip address of your phone, then set the following environment variables:

export DM_TRANS=sut
export TEST_DEVICE=<device ip of phone>

If you are using a B2G pandaboard with adb, then you'll need sudo privileges for adb:

adb kill-server
sudo adb start-server

Console Mode

Console mode is meant for internal profiling. You run a program called with a specific test against an Android apk, and out will pop several results. This is not yet supported for B2G.

./bin/ --use-apks <test> <apk of build 1> [apk of build 2] ...

For example, to run the canvas clock example against Fennec nightly, try this:

./bin/ --use-apks src/tests/ep1/clock.html nightly.apk

Typically, you want to run Eideticker more than once on a particular test to get a range of results as tests are not 100% deterministic (partly due to the way we run tests, partly due to Android itself). You can do this with the --num-runs option. For example:

./bin/ --use-apks --num-runs 5 src/tests/ep1/clock.html nightly.apk

If you want to know more about the results (where the numbers are coming from) you can open them up inside the Eideticker web interface. To open it, execute:


Then connect to http://localhost:8080. You should see a list of captures, select the one you're interested in to dive into fine grained detail.

In addition to supporting HDMI capture and analysis, it is also possible to run the Eideticker harness in a mode that simply "captures" the performance log of Fennec and outputs results. This has two advantages: first, you don't need any kind of specialized hardware. Second, it's much faster (since there's no video encoding/decoding/analysis step). For this you want to pass in "--no-capture" and "--get-internal-checkerboard-stats", like so:

./bin/ --use-apks --no-capture --get-internal-checkerboard-stats src/tests/ep1/ nightly.apk

Dashboard Mode

Dashboard mode is used to generate a dashboard of eideticker results, like what you see at From a toplevel, it is run from a script called bin/, which can be called standalone. This script then it turn calls another script called bin/ with various arguments corresponding to firefox version, test to run, etc. The dashboard is currently under heavy development and is not meant to be a developer/qa facing tool. For now, if you have need to use/modify it, please refer to the source. This is not yet supported for B2G.

Eideticker "tests"

Eideticker tests are simply static HTML with a bit of JavaScript glue to interface with the harness and some JSON metadata to describe actions that Eideticker should perform while a capture is ongoing. The simplest example of a test would probably be the clock demo, which you can find in src/tests/ep1/clock/index.html (you have to run `./ first to checkout the ep1 submodule before you can find this file).

Writing your own tests is a matter of adding a subdirectory to src/tests, creating/copying an HTML page of your choice, adding the relevant JavaScript code to start/stop the test as appropriate, and then making an actions.json file with whatever actions you want to simulate during the test.