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Fixed mod.rs errors for when rug is not used, and added some unit tests there

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This commit is contained in:
bakk 2021-05-18 20:02:21 +02:00
parent dea2ab9ee2
commit 09c99c9169
1 changed files with 26 additions and 5 deletions
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31
kalk/src/kalk_num/mod.rs
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@ -49,13 +49,13 @@ impl KalkNum {
let integer = self.value.clone().trunc();
// If it's an integer, there's nothing that would be done to it.
if fract == 0 {
if fract == 0f64 {
return None;
}
// Eg. 0.5 to 1/2
let as_abs_string = self.to_string().trim_start_matches("-").to_string();
let sign = if self.value < 0 { "-" } else { "" };
let sign = if self.value < 0f64 { "-" } else { "" };
let fract_as_string = fract.to_string();
if as_abs_string.starts_with("0.5") {
if as_abs_string.len() == 3 || (as_abs_string.len() > 6 && &as_abs_string[3..5] == "00")
@ -65,7 +65,7 @@ impl KalkNum {
}
// Eg. 1.33333333 to 1 + 1/3
if fract_as_string.len() >= 5 {
if fract_as_string.len() >= 7 {
let first_five_decimals = &fract_as_string[2..7];
if first_five_decimals == "33333" || first_five_decimals == "66666" {
let fraction = match first_five_decimals.as_ref() {
@ -74,7 +74,7 @@ impl KalkNum {
_ => "?",
};
if integer == 0 {
if integer == 0f64 {
return Some(format!("{}{}", sign, fraction));
} else {
let explicit_sign = if sign == "" { "+" } else { "-" };
@ -102,7 +102,7 @@ impl KalkNum {
/// Basic up/down rounding from 0.00xxx or 0.999xxx or xx.000xxx, etc.
pub fn round(&self) -> Option<KalkNum> {
let sign = if self.value < 0 { -1 } else { 1 };
let sign = if self.value < 0f64 { -1f64 } else { 1f64 };
let fract = self.value.clone().abs().fract();
let integer = self.value.clone().abs().trunc();
@ -196,6 +196,27 @@ mod tests {
(-0.665f64, None),
(100f64, None),
(-100f64, None),
(1f64, None),
(0.12f64, None),
(0.1f64, None),
(1.2f64, None),
(1.23f64, None),
(1.234f64, None),
(1.2345f64, None),
(1.23456f64, None),
(1.234567f64, None),
(1.2345678f64, None),
(1.23456789f64, None),
(-0.12f64, None),
(-0.1f64, None),
(-1.2f64, None),
(-1.23f64, None),
(-1.234f64, None),
(-1.2345f64, None),
(-1.23456f64, None),
(-1.234567f64, None),
(-1.2345678f64, None),
(-1.23456789f64, None),
];
for (input, output) in in_out {