def METHOD_NAME(self):
    step = MultipleFileUpload(workersrcs=["dir/noexist_path"], masterdest="master_dest")
    yield self.setup_config_single_step(step)
    build = yield self.doForceBuild(wantSteps=True, wantLogs=True)
    self.assertEqual(build['results'], FAILURE)
    res = yield self.checkBuildStepLogExist(build, "Cannot open file")
    self.assertTrue(res)