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use toml_edit::Document;
macro_rules! float_inf_tests {
($ty:ty) => {{
let document = r"
# infinity
sf1 = inf # positive infinity
sf2 = +inf # positive infinity
sf3 = -inf # negative infinity
# not a number
sf4 = nan # actual sNaN/qNaN encoding is implementation specific
sf5 = +nan # same as `nan`
sf6 = -nan # valid, actual encoding is implementation specific
# zero
sf7 = +0.0
sf8 = -0.0
";
let document = document.parse::<Document>().unwrap();
let float = |k| document[k].as_float().unwrap();
assert!(float("sf1").is_infinite());
assert!(float("sf1").is_sign_positive());
assert!(float("sf2").is_infinite());
assert!(float("sf2").is_sign_positive());
assert!(float("sf3").is_infinite());
assert!(float("sf3").is_sign_negative());
assert!(float("sf4").is_nan());
assert!(float("sf4").is_sign_positive());
assert!(float("sf5").is_nan());
assert!(float("sf5").is_sign_positive());
assert!(float("sf6").is_nan());
assert!(float("sf6").is_sign_negative());
assert_eq!(float("sf7"), 0.0);
assert!(float("sf7").is_sign_positive());
assert_eq!(float("sf8"), 0.0);
assert!(float("sf8").is_sign_negative());
let mut document = Document::new();
document["sf4"] = toml_edit::value(f64::NAN.copysign(1.0));
document["sf6"] = toml_edit::value(f64::NAN.copysign(-1.0));
assert_eq!(
document.to_string(),
"\
sf4 = nan
sf6 = -nan
"
);
}};
}
#[test]
fn test_float() {
float_inf_tests!(f32);
float_inf_tests!(f64);
}
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