Function rustdoc::doctest::make_test

pub fn make_test(
    s: &str, 
    cratename: Option<&str>, 
    dont_insert_main: bool, 
    opts: &TestOptions, 
    edition: Edition
) -> (String, usize)

Transforms a test into code that can be compiled into a Rust binary, and returns the number of lines before the test code begins.