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std/wasi/testdata/std_fs_file_read.rs

Deno standard library
denoland/deno
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// { "preopens": { "/fixture": "fixture" } }
use std::io::Read;
fn main() {  let mut file = std::fs::File::open("/fixture/file").unwrap();  let mut buffer = [0; 2];
  assert_eq!(file.read(&mut buffer).unwrap(), 2);  assert_eq!(&buffer, b"fi");
  assert_eq!(file.read(&mut buffer).unwrap(), 2);  assert_eq!(&buffer, b"le");
  assert_eq!(file.read(&mut buffer).unwrap(), 1);}