RDM Responder Testing
OLA comes with a suite of tests for RDM responders which can be used to check how well an RDM device implements the E1.20 specification. Writing RDM Responder Tests explains how to add to / improve the tests.
Setup the Test Rig
The following controller devices are supported:
Connect the device under test to the controller device and start olad. Patch the output port on the controller device to a universe (UNIVERSE_NUMBER). Then run ola_rdm_discover, you should see the responder's UID appear:
$ ola_rdm_discover -u UNIVERSE_NUMBER 00a1:00010003 7a70:ffffff00
Running the Tests
The tests are written in Python and run using ola_rdm_test.py. Below is the output from a typical test run:
./ola_rdm_test.py --universe 1 --pid_file ../../python/pids.config 00a1:00010003 Starting tests, universe 3, UID 00a1:00010003 SetManufacturerLabel: Passed SetSoftwareVersionLabel: Passed GetManufacturerLabel: Passed GetSoftwareVersionLabelWithData: Failed ... ------------- Warnings -------------- ------------ By Category ------------ Product Information: 7 / 7 100% RDM Information: 1 / 1 100% Core Functionality: 2 / 2 100% Error Conditions: 10 / 16 62% DMX512 Setup: 3 / 3 100% ------------------------------------- 29 / 30 tests run, 23 passed, 6 failed, 0 broken
ola_rdm_test.py has some options which can assist in debugging failures. For a full list of options run with -h
- -d, --debug
- Show all debugging output, including actual & expected responses.
- -t Test1,Test2 , --tests=Test1,Test2
- Only run a subset of the Tests. Only the tests listed (and their dependencies) will be run.
Information on Tests
Some tests have dependencies, which are other tests that need to be completed before the test can be run. Dependencies can be used to check for supported parameters and other conditions that may affect responder behavior.
There are 4 result states for a test:
- The responder replied with the expected result
- The responder failed to reply, or replied with an un-expected result
- Not Run
- This test wasn't run because the responder doesn't support the required functionality
- An internal error occurred, this indicates a programming error or an error with the test rig.