add tests directory for simple test

Dependencies

• [2] LDHPW77N

Change contents

• file addition: tests (d--r------)
  [2.1]
• file addition: test.rs (----------)
  [0.17]
  + use slicefire::*;

  +

  + #[derive(Debug, Copy, Clone, Eq, PartialEq)]

  + #[allow(unused)]

  + struct Foo {

  + x: i32,

  + y: i64,

  + }

  +

  + impl From<i32> for Foo {

  + fn from(x: i32) -> Self {

  + Self { x, y: x as i64 * 2 }

  + }

  + }

  +

  + fn indices(size: usize) -> (Vec<usize>, Vec<Foo>) {

  + let indices = (0..(size)).map(|i| i % (size - 2)).collect::<Vec<usize>>();

  + let vs = (0..size).map(|v| (v as i32).into()).collect::<Vec<Foo>>();

  + (indices, vs)

  + }

  +

  + #[test]

  + fn writes_where_it_should() {

  + let (indices, mut vs) = indices(10);

  + writes_par(&mut vs, 10.into(), &indices);

  + let penultimate = vs.len() - 2;

  + let val = penultimate as i32;

  + let last_two = &vs[penultimate..];

  + assert_eq!(last_two[0], val.into());

  + assert_eq!(last_two[1], (val + 1).into());

  + }