proffer 0.5.0

Rust code generation
Documentation 
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use proffer::*;

fn normalize_whitespace(s: &str) -> String {
    s.split("\n")
        .map(|l| l.trim())
        .filter(|l| l.len() > 0)
        .collect::<String>()
}

#[test]
fn function_gen_basic() {
    let function = Function::new("foo");

    let expected = r#"
        fn foo() -> ()
        {
        }
    "#;

    let src_code = function.generate();
    println!("{}", &src_code);
    assert_eq!(
        normalize_whitespace(expected),
        normalize_whitespace(&src_code)
    );
}

#[test]
fn function_gen_parameters() {
    let function = Function::new("foo")
        .set_is_pub(true)
        .add_parameter(Parameter::new("bar1", "usize"))
        .add_parameter(Parameter::new("bar2", "&str"))
        .to_owned();
    let expected = r#"
        pub fn foo(bar1: usize, bar2: &str) -> ()
        {
        }
    "#;

    let src_code = function.generate();
    println!("{}", &src_code);
    assert_eq!(
        normalize_whitespace(expected),
        normalize_whitespace(&src_code)
    );
}

#[test]
fn function_with_generic() {
    let function = Function::new("foo")
        .set_is_pub(true)
        .add_parameter(Parameter::new("bar1", "T"))
        .add_parameter(Parameter::new("bar2", "S"))
        .add_generic(
            Generic::new("T")
                .add_trait_bounds(vec!["ToString", "Number"])
                .to_owned(),
        )
        .add_generic(
            Generic::new("S")
                .add_trait_bounds(vec!["Display"])
                .to_owned(),
        )
        .to_owned();
    let expected = r#"
        pub fn foo<T, S>(bar1: T, bar2: S) -> ()
            where
                T: ToString + Number,
                S: Display,
        {
        }
    "#;

    let src_code = function.generate();
    println!("{}", &src_code);
    assert_eq!(
        normalize_whitespace(expected),
        normalize_whitespace(&src_code)
    );
}

#[test]
fn function_with_generic_no_bounds() {
    let function = Function::new("foo")
        .set_is_pub(true)
        .add_parameter(Parameter::new("bar1", "T"))
        .add_parameter(Parameter::new("bar2", "S"))
        .add_generic(Generic::new("T"))
        .add_generic(Generic::new("S"))
        .to_owned();
    let expected = r#"
        pub fn foo<T, S>(bar1: T, bar2: S) -> ()
            where
                T: ,
                S: ,
        {
        }
    "#;

    let src_code = function.generate();
    println!("{}", &src_code);
    assert_eq!(
        normalize_whitespace(expected),
        normalize_whitespace(&src_code)
    );
}

#[test]
fn function_with_async() {
    let function = Function::new("foo")
        .set_is_pub(true)
        .set_is_async(true)
        .to_owned();

    let expected = r#"
        pub async fn foo() -> ()
        {
        }
    "#;

    let src_code = function.generate();
    println!("{}", &src_code);
    assert_eq!(
        normalize_whitespace(expected),
        normalize_whitespace(&src_code)
    );
}