# rspec > Behavior-driven development testing framework written in Ruby to test Ruby code. > More information: . - Initialize an .rspec configuration and a spec helper file: `rspec --init` - Run all tests: `rspec` - Run a specific directory of tests: `rspec {{path/to/directory}}` - Run one or more test files: `rspec {{path/to/file1 path/to/file2 ...}}` - Run a specific test in a file (e.g. the test starts on line 83): `rspec {{path/to/file}}:{{83}}` - Run specs with a specific seed: `rspec --seed {{seed_number}}`