Function assert_cli::assert_cli_output [−] [src]

pub fn assert_cli_output<S>(cmd: &str, args: &[S], expected_output: &str) -> Result<(), Box<Error>> where S: AsRef<OsStr>

Assert a CLI call returns the expected output.

To test that

ls -n1 src/

returns

cli_error.rs
diff.rs
lib.rs

you would call it like this:

assert_cli::assert_cli_output("ls", &["-n1", "src/"], "cli_error.rs\ndiff.rs\nlib.rs");