begin

Use a begin expression

Given a file named “main.scm” with:

(import (scheme base))

(write-u8 (begin 65))
(write-u8 (begin 65 66))
(write-u8 (begin 65 66 67))

When I successfully run scheme main.scm

Then the stdout should contain exactly “ABC”.

Use a begin expression with no value

Given a file named “main.scm” with:

(import (scheme base))

(write-u8 (begin))

When I run scheme main.scm

Then the exit status should not be 0.