Skip to main content

reifydb_value/config/
i128.rs

1// SPDX-License-Identifier: Apache-2.0
2// Copyright (c) 2026 ReifyDB
3
4use super::Config;
5
6impl Config {
7	pub fn i128(&self, key: &str) -> Option<i128> {
8		self.opt_coerce(key)
9	}
10
11	pub fn require_i128(&self, key: &str) -> i128 {
12		self.opt_coerce(key).unwrap_or_else(|| self.missing(key, "an integer"))
13	}
14
15	pub fn i128_or(&self, key: &str, default: i128) -> i128 {
16		self.opt_coerce(key).unwrap_or(default)
17	}
18}
19
20#[cfg(test)]
21mod tests {
22	use super::super::testutil::config;
23	use crate::value::Value;
24
25	#[test]
26	fn casts_every_width_that_fits() {
27		let cfg = config(vec![
28			("a", Value::Int16(-170141183460469231731687303715884105728)),
29			("b", Value::Uint8(u64::MAX)),
30			("c", Value::Int4(-3)),
31		]);
32		assert_eq!(cfg.i128("a"), Some(i128::MIN), "Int16 round-trips through i128");
33		assert_eq!(cfg.i128("b"), Some(u64::MAX as i128), "u64::MAX fits in i128");
34		assert_eq!(cfg.i128("c"), Some(-3));
35	}
36
37	#[test]
38	fn rejects_uint16_above_i128_max() {
39		let cfg = config(vec![("u", Value::Uint16(i128::MAX as u128 + 1))]);
40		assert_eq!(cfg.i128("u"), None, "Uint16 above i128::MAX is range-checked and rejected");
41	}
42
43	#[test]
44	fn rejects_non_integer() {
45		let cfg = config(vec![("f", Value::float8(1.0)), ("b", Value::Boolean(true))]);
46		assert_eq!(cfg.i128("f"), None);
47		assert_eq!(cfg.i128("b"), None);
48	}
49
50	#[test]
51	fn or_and_require_behavior() {
52		let cfg = config(vec![("present", Value::Int16(-9))]);
53		assert_eq!(cfg.i128_or("present", 1), -9);
54		assert_eq!(cfg.i128_or("absent", 1), 1);
55		assert_eq!(cfg.require_i128("present"), -9);
56	}
57
58	#[test]
59	#[should_panic(expected = "is missing or not an integer")]
60	fn require_panics_when_missing() {
61		let cfg = config(vec![]);
62		cfg.require_i128("k");
63	}
64}