First, ensure you understand Option Handling in Tradefed.
Suite setup describes the two layers that exist in the suite structure:
- The top-level suite
- The modules
In a non-suite Tradefed context, there is no need to think about it; every option goes to the full invocation. In a suite context, modules are kept isolated from the suite; so not all options are available at their level.
Pass options to the top-level suite
The top-level suite behaves like standard Tradefed configuration: the full configuration including the suite runner receives all the options like a non-suite Tradefed configuration.
Pass options to the modules
Modules by default do not receive any of the options passed to the command.
They need to be explicitly targeted to receive the options through the
module-arg option. This isolation of the modules options makes debugging
easier.
Example:
cts-tradefed run cts --module-arg <module-name>:<option-name>:<option-value>
cts-tradefed run cts --module-arg CtsGestureTestCases:collect-tests-only:true
The syntax ensures that the targeted module will receive the given option.
There are additional ways to pass options to modules such as test-arg, which
allows you to pass options to the test runner of each module based on the runner
type or class.
Example:
cts-tradefed run cts --test-arg <test-class>:<option-name>:<option-value>
cts-tradefed run cts --test-arg com.android.tradefed.testtype.JarHosttest:collect-tests-only:true
The syntax does not target a particular module but rather all the test runners
of the given class. test-arg considers only implementations of
IRemoteTest
as potential receiver of the options.