# Kola External TestsFor more information about the `kola` external tests, see the [Integrating External Test Suites](https://coreos.github.io/coreos-assembler/kola/external-tests/#integrating-external-test-suites)topic in the `coreos-assembler` documentation.## Sharing tests between FCOS/RHCOSThese tests are intended to be shared between FCOS and RHCOS. If you are addinga new test(s) to this collection, ensure that the test also run on RHCOS.Otherwise, use the `kola` JSON header to specify that it only runs on FCOS likeso:```bash#!/bin/bash## kola:## distros: fcos...```