– You have already downloaded the FitNesse for Appian zip file from Appian Community portal Step 1: Install Necessary Packages It does not cover how to write FitNesse scripts to test Appian interfaces. Note: this walkthrough covers the installation of FitNesse for Appian. By default, FitNesse for Appian uses Firefox that is also pre-installed as part of the software selection during the OS installation phase. The following steps illustrate how to install FitNesse for Appian on a fresh installation of Linux CentOS 7 (Server with GUI). Discover errors and bugs early in the development pipeline.The advantages of having automated unit testing are: To facilitate (via automation) unit testing in Appian, FitNesse for Appian is a port/standalone software with customized libraries that allow individual developers to write their own test scripts that can reference specific SAIL interface components. FitNesse is a fully integrated standalone wiki and acceptance testing framework (as quoted by its official website ).