Fix string comparison in keep/count check, and add test cases
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15163ac11d
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dc242182f4
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@ -41,19 +41,21 @@ fn parse_dice(input: &str) -> IResult<&str, Dice> {
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// if ok, keep expression is present
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Ok(r) => {
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input = r.0;
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// don't allow keep greater than number of dice, and don't allow keep zero
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if r.1.1 <= count && r.1.1 != "0" {
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keep = r.1.1;
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} else {
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keep = count;
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}
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}
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// otherwise absent and keep all dice
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Err(_) => keep = count,
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};
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// don't allow keep greater than number of dice, and don't allow keep zero
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let mut keep: u32 = keep.parse().unwrap();
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let count: u32 = count.parse().unwrap();
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if keep > count || keep == 0 {
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keep = count;
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}
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Ok((
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input,
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Dice::new(count.parse().unwrap(), sides.parse().unwrap(), keep.parse().unwrap()),
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Dice::new(count, sides.parse().unwrap(), keep),
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))
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}
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@ -130,6 +132,10 @@ mod tests {
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assert_eq!(parse_dice("8d7"), Ok(("", Dice::new(8, 7, 8))));
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assert_eq!(parse_dice("2d20k1"), Ok(("", Dice::new(2, 20, 1))));
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assert_eq!(parse_dice("100d10k90"), Ok(("", Dice::new(100, 10, 90))));
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assert_eq!(parse_dice("11d10k10"), Ok(("", Dice::new(11, 10, 10))));
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assert_eq!(parse_dice("12d10k11"), Ok(("", Dice::new(12, 10, 11))));
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assert_eq!(parse_dice("12d10k13"), Ok(("", Dice::new(12, 10, 12))));
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assert_eq!(parse_dice("12d10k0"), Ok(("", Dice::new(12, 10, 12))));
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}
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#[test]
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@ -33,7 +33,7 @@ impl DiceRoll {
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// only count kept dice in total
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pub fn total(&self) -> u32 {
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self.0[..=(self.1-1)].iter().sum()
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self.0[..self.1].iter().sum()
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}
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}
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@ -211,18 +211,22 @@ mod tests {
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use super::*;
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#[test]
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fn dice_roll_display_test() {
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assert_eq!(DiceRoll(vec![1, 3, 4]).to_string(), "8 (1 + 3 + 4)");
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assert_eq!(DiceRoll(vec![]).to_string(), "0");
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assert_eq!(DiceRoll(vec![1, 3, 4], 3).to_string(), "8 (1 + 3 + 4)");
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assert_eq!(DiceRoll(vec![], 0).to_string(), "0");
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assert_eq!(
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DiceRoll(vec![4, 7, 2, 10]).to_string(),
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DiceRoll(vec![4, 7, 2, 10], 4).to_string(),
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"23 (4 + 7 + 2 + 10)"
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);
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assert_eq!(
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DiceRoll(vec![20, 13, 11, 10], 3).to_string(),
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"44 (20 + 13 + 11 + [10])"
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);
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}
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#[test]
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fn element_roll_display_test() {
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assert_eq!(
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ElementRoll::Dice(DiceRoll(vec![1, 3, 4])).to_string(),
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ElementRoll::Dice(DiceRoll(vec![1, 3, 4], 3)).to_string(),
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"8 (1 + 3 + 4)"
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);
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assert_eq!(ElementRoll::Bonus(7).to_string(), "7");
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@ -231,11 +235,11 @@ mod tests {
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#[test]
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fn signed_element_roll_display_test() {
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assert_eq!(
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SignedElementRoll::Positive(ElementRoll::Dice(DiceRoll(vec![1, 3, 4]))).to_string(),
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SignedElementRoll::Positive(ElementRoll::Dice(DiceRoll(vec![1, 3, 4], 3))).to_string(),
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"8 (1 + 3 + 4)"
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);
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assert_eq!(
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SignedElementRoll::Negative(ElementRoll::Dice(DiceRoll(vec![1, 3, 4]))).to_string(),
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SignedElementRoll::Negative(ElementRoll::Dice(DiceRoll(vec![1, 3, 4], 3))).to_string(),
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"-8 (1 + 3 + 4)"
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);
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assert_eq!(
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@ -252,14 +256,14 @@ mod tests {
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fn element_expression_roll_display_test() {
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assert_eq!(
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ElementExpressionRoll(vec![SignedElementRoll::Positive(ElementRoll::Dice(
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DiceRoll(vec![1, 3, 4])
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DiceRoll(vec![1, 3, 4], 3)
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)),])
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.to_string(),
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"8 (1 + 3 + 4)"
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);
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assert_eq!(
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ElementExpressionRoll(vec![SignedElementRoll::Negative(ElementRoll::Dice(
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DiceRoll(vec![1, 3, 4])
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DiceRoll(vec![1, 3, 4], 3)
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)),])
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.to_string(),
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"-8 (1 + 3 + 4)"
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@ -276,8 +280,8 @@ mod tests {
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);
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assert_eq!(
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ElementExpressionRoll(vec![
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SignedElementRoll::Positive(ElementRoll::Dice(DiceRoll(vec![1, 3, 4]))),
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SignedElementRoll::Negative(ElementRoll::Dice(DiceRoll(vec![1, 2]))),
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SignedElementRoll::Positive(ElementRoll::Dice(DiceRoll(vec![1, 3, 4], 3))),
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SignedElementRoll::Negative(ElementRoll::Dice(DiceRoll(vec![1, 2], 2))),
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SignedElementRoll::Positive(ElementRoll::Bonus(4)),
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SignedElementRoll::Negative(ElementRoll::Bonus(7)),
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])
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@ -286,13 +290,23 @@ mod tests {
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);
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assert_eq!(
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ElementExpressionRoll(vec![
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SignedElementRoll::Negative(ElementRoll::Dice(DiceRoll(vec![1, 3, 4]))),
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SignedElementRoll::Positive(ElementRoll::Dice(DiceRoll(vec![1, 2]))),
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SignedElementRoll::Negative(ElementRoll::Dice(DiceRoll(vec![1, 3, 4], 3))),
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SignedElementRoll::Positive(ElementRoll::Dice(DiceRoll(vec![1, 2], 2))),
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SignedElementRoll::Negative(ElementRoll::Bonus(4)),
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SignedElementRoll::Positive(ElementRoll::Bonus(7)),
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])
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.to_string(),
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"-2 (-8 (1 + 3 + 4) + 3 (1 + 2) - 4 + 7)"
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);
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assert_eq!(
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ElementExpressionRoll(vec![
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SignedElementRoll::Negative(ElementRoll::Dice(DiceRoll(vec![4, 3, 1], 3))),
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SignedElementRoll::Positive(ElementRoll::Dice(DiceRoll(vec![12, 2], 1))),
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SignedElementRoll::Negative(ElementRoll::Bonus(4)),
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SignedElementRoll::Positive(ElementRoll::Bonus(7)),
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])
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.to_string(),
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"7 (-8 (4 + 3 + 1) + 12 (12 + [2]) - 4 + 7)"
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);
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}
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}
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