Pass environment variables

[QAutomatron]

How can I pass environment parameters to all tests run through the fork (using gradle plugin)?

I mean the ones are usually pass as testInstrumentationRunnerArguments. Parameters like clearPackageData: 'true' or custom ones like foo: bar, so in test i can get them using: InstrumentationRegistry.getArguments().getString("foo").
Seems that fork ignores params from testInstrumentationRunnerArguments and return just null