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feat(tm2): improve error message on invalid coins #4942

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feat(tm2): improve error message on invalid coins #4942

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b727dcd
feat(tm2): improve error message on invalid coins
MikaelVallenet Dec 5, 2025
937edef
Merge branch 'master' into mikael/fix/improve-std-coins-error
MikaelVallenet Dec 10, 2025
9edfac2
chore: trigger CI
MikaelVallenet Dec 11, 2025
b4e2c73
chore: trigger CI
MikaelVallenet Dec 11, 2025
f4811ee
test(tm2): add coverage on is valid fail case for add & sub & parse &…
MikaelVallenet Dec 11, 2025
6064d55
test(tm2): add coverage on is valid fail case for add & sub & parse &…
MikaelVallenet Dec 11, 2025
19d4994
Merge branch 'master' into mikael/fix/improve-std-coins-error
MikaelVallenet Dec 11, 2025
4bc057e
test(tm2): add coverage on is valid fail case for add & sub & parse &…
MikaelVallenet Dec 11, 2025
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20 changes: 16 additions & 4 deletions tm2/pkg/std/coin.go
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Original file line number Diff line number Diff line change
Expand Up @@ -192,7 +192,10 @@ func NewCoins(coins ...Coin) Coins {
}

if !newCoins.IsValid() {
panic(fmt.Errorf("invalid coin set: %s", newCoins))
panic(fmt.Errorf(
"invalid coin set: %s (must be sorted, lowercase-only denoms, and positive amounts)",
newCoins,
))
}

return newCoins
Expand Down Expand Up @@ -271,7 +274,10 @@ func (coins Coins) IsValid() bool {
func (coins Coins) Add(coinsB Coins) Coins {
res := coins.AddUnsafe(coinsB)
if !res.IsValid() {
panic(fmt.Sprintf("invalid result: %v + %v = %v", coins, coinsB, res))
panic(fmt.Sprintf(
"invalid result: %v + %v = %v (coins must stay sorted, lowercase-only denoms, and positive amounts)",
coins, coinsB, res,
))
}
return res
}
Expand Down Expand Up @@ -372,7 +378,10 @@ func (coins Coins) DenomsSubsetOf(coinsB Coins) bool {
func (coins Coins) Sub(coinsB Coins) Coins {
res := coins.SubUnsafe(coinsB)
if !res.IsValid() {
panic(fmt.Sprintf("invalid result: %v - %v = %v", coins, coinsB, res))
panic(fmt.Sprintf(
"invalid result: %v - %v = %v (must be sorted, lowercase-only denoms, and positive amounts)",
coins, coinsB, res,
))
}
return res
}
Expand Down Expand Up @@ -717,7 +726,10 @@ func ParseCoins(coinsStr string) (Coins, error) {

// validate coins before returning
if !coins.IsValid() {
return nil, fmt.Errorf("parseCoins invalid: %#v", coins)
return nil, fmt.Errorf(
"parseCoins: invalid coins %v (must be sorted, lowercase-only denoms, and positive amounts)",
coins,
)
}

return coins, nil
Expand Down
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