Right click on the file ROT13CipherTest, select "Run As" then "JUnit test". You should get 10 green tests. Call the method transform() in class ROT13Cipher, using the string to cipher as parameter.
Spike, the RISC-V ISA Simulator, implements a functional model of one or more RISC-V harts. It is named after the golden spike used to celebrate the completion of the US transcontinental railway.