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15 lines
446 B
Rust
15 lines
446 B
Rust
// { "preopens": { "/scratch": "scratch" } }
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use std::io::Write;
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fn main() {
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let mut file = std::fs::File::create("/scratch/file").unwrap();
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assert!(file.write(b"Hello").is_ok());
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assert!(file.sync_data().is_ok());
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assert_eq!(std::fs::read("/scratch/file").unwrap(), b"Hello");
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assert!(file.write(b", world!").is_ok());
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assert!(file.sync_data().is_ok());
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assert_eq!(std::fs::read("/scratch/file").unwrap(), b"Hello, world!");
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}
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