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https://github.com/Tribufu/rust-gamedig
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e0830bdae5
* [Crate] Replace IpAddr with SocketAddr in protocols * [Crate] Remove usage of address.to_string in socket * [Crate] Update CHANGELOG.md
30 lines
794 B
Rust
30 lines
794 B
Rust
use crate::{
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GDError::{PacketOverflow, PacketUnderflow},
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GDResult,
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};
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use std::cmp::Ordering;
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pub fn error_by_expected_size(expected: usize, size: usize) -> GDResult<()> {
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match size.cmp(&expected) {
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Ordering::Greater => Err(PacketOverflow),
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Ordering::Less => Err(PacketUnderflow),
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Ordering::Equal => Ok(()),
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}
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}
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pub fn u8_lower_upper(n: u8) -> (u8, u8) { (n & 15, n >> 4) }
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#[cfg(test)]
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mod tests {
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#[test]
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fn u8_lower_upper() {
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assert_eq!(super::u8_lower_upper(171), (11, 10));
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}
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#[test]
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fn error_by_expected_size() {
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assert!(super::error_by_expected_size(69, 69).is_ok());
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assert!(super::error_by_expected_size(69, 68).is_err());
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assert!(super::error_by_expected_size(69, 70).is_err());
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}
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}
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