55 lines
1.2 KiB
Rust
55 lines
1.2 KiB
Rust
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use std::{cell::Cell, str::from_utf8};
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use macroconf::config;
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use miniconf::JsonCoreSlash;
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fn set_cell<const MIN: i32, const MAX: i32>(
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cell: &Cell<i32>,
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val: i32,
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) -> Result<(), &'static str> {
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if (MIN..=MAX).contains(&val) {
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cell.set(val);
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Ok(())
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} else {
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Err("value out of bounds")
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}
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}
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#[config]
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struct Config {
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#[config(
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min = "-128",
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max = "128",
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default,
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typ = "i32",
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get = "Cell::get",
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set = "set_cell::<-128,128>"
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)]
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field: Cell<i32>,
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}
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#[test]
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fn get() {
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let mut buffer = [0u8; 32];
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let config = Config {
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field: __ConfigField::new(Cell::new(42)),
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};
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let len = config.get_json("/field", &mut buffer).unwrap();
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assert_eq!(from_utf8(&buffer[..len]), Ok("42"));
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}
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#[test]
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fn set() {
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let mut config = Config {
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field: __ConfigField::new(Cell::new(42)),
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};
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config.set_json("/field", b"-32").unwrap();
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assert_eq!(config.field.get(), -32);
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config
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.set_json("/field", b"256")
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.expect_err("result not checked");
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config
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.set_json("/field", b"-256")
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.expect_err("result not checked");
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}
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