gecko-dev/testing/moz.build

with Files("**"):
    BUG_COMPONENT = ("Testing", "General")

with Files("*cppunittest*"):
    BUG_COMPONENT = ("Testing", "CPPUnitTest")
    SCHEDULES.exclusive = ['cppunittest']

with Files("remote*"):
    BUG_COMPONENT = ("GeckoView", "General")