$this->configFactory->loadMultiple(['the_provider.the_config_prefix.foo', 'the_provider.the_config_prefix.bar'])
->willReturn([$foo_config_object->reveal(), $bar_config_object->reveal()]);
$this->configFactory->loadMultiple(['the_provider.the_config_prefix.foo', 'the_provider.the_config_prefix.bar'])
->willReturn([$foo_config_object->reveal(), $bar_config_object->reveal()]);