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Add float NaN tests

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David Tolnay 2023-10-25 19:42:00 -07:00
parent bb4135cae8
commit a091a07aa2
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1 changed files with 21 additions and 0 deletions
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test_suite/tests/test_de.rs
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@ -11,6 +11,7 @@
#![cfg_attr(feature = "unstable", feature(never_type))]
use fnv::FnvHasher;
use serde::de::value::{F32Deserializer, F64Deserializer};
use serde::de::{Deserialize, DeserializeOwned, Deserializer, IntoDeserializer};
use serde_derive::Deserialize;
use serde_test::{assert_de_tokens, Configure, Token};
@ -832,6 +833,26 @@ fn test_f64() {
test(1.11, &[Token::F64(1.11)]);
}
#[test]
fn test_nan() {
let f32_deserializer = F32Deserializer::<serde::de::value::Error>::new;
let f64_deserializer = F64Deserializer::<serde::de::value::Error>::new;
let pos_f32_nan = f32_deserializer(f32::NAN.copysign(1.0));
let pos_f64_nan = f64_deserializer(f64::NAN.copysign(1.0));
assert!(f32::deserialize(pos_f32_nan).unwrap().is_sign_positive());
assert!(f32::deserialize(pos_f64_nan).unwrap().is_sign_positive());
assert!(f64::deserialize(pos_f32_nan).unwrap().is_sign_positive());
assert!(f64::deserialize(pos_f64_nan).unwrap().is_sign_positive());
let neg_f32_nan = f32_deserializer(f32::NAN.copysign(-1.0));
let neg_f64_nan = f64_deserializer(f64::NAN.copysign(-1.0));
assert!(f32::deserialize(neg_f32_nan).unwrap().is_sign_negative());
assert!(f32::deserialize(neg_f64_nan).unwrap().is_sign_negative());
assert!(f64::deserialize(neg_f32_nan).unwrap().is_sign_negative());
assert!(f64::deserialize(neg_f64_nan).unwrap().is_sign_negative());
}
#[test]
fn test_char() {
test('a', &[Token::Char('a')]);