Use correct bit length constant for sdk.Dec (cosmos#11332)

Co-authored-by: Marko <[email protected]>
uncle-ed-fu · Mar 8, 2022 · 3d3cf25 · 3d3cf25
1 parent 68f6c8b
commit 3d3cf25
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Showing 3 changed files with 33 additions and 8 deletions.
diff --git a/go.sum b/go.sum
@@ -1337,7 +1337,6 @@ github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1
 github.com/yuin/goldmark v1.4.0/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yusufpapurcu/wmi v1.2.2/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
-github.com/zondax/hid v0.9.0 h1:eiT3P6vNxAEVxXMw66eZUAAnU2zD33JBkfG/EnfAKl8=
 github.com/zondax/hid v0.9.0/go.mod h1:l5wttcP0jwtdLjqjMMWFVEE7d1zO0jvSPA9OPZxWpEM=
 github.com/zondax/hid v0.9.1-0.20220302062450-5552068d2266 h1:O9XLFXGkVswDFmH9LaYpqu+r/AAFWqr0DL6V00KEVFg=
 github.com/zondax/hid v0.9.1-0.20220302062450-5552068d2266/go.mod h1:l5wttcP0jwtdLjqjMMWFVEE7d1zO0jvSPA9OPZxWpEM=

diff --git a/types/decimal.go b/types/decimal.go
@@ -179,8 +179,8 @@ func NewDecFromStr(str string) (Dec, error) {
 	if !ok {
 		return Dec{}, fmt.Errorf("failed to set decimal string: %s", combinedStr)
 	}
-	if combined.BitLen() > maxBitLen {
-		return Dec{}, fmt.Errorf("decimal out of range; bitLen: got %d, max %d", combined.BitLen(), maxBitLen)
+	if combined.BitLen() > maxDecBitLen {
+		return Dec{}, fmt.Errorf("decimal out of range; bitLen: got %d, max %d", combined.BitLen(), maxDecBitLen)
 	}
 	if neg {
 		combined = new(big.Int).Neg(combined)
@@ -831,8 +831,8 @@ func (d *Dec) Unmarshal(data []byte) error {
 		return err
 	}
 
-	if d.i.BitLen() > maxBitLen {
-		return fmt.Errorf("decimal out of range; got: %d, max: %d", d.i.BitLen(), maxBitLen)
+	if d.i.BitLen() > maxDecBitLen {
+		return fmt.Errorf("decimal out of range; got: %d, max: %d", d.i.BitLen(), maxDecBitLen)
 	}
 
 	return nil

diff --git a/types/decimal_test.go b/types/decimal_test.go
@@ -54,8 +54,14 @@ func (s *decimalTestSuite) mustNewDecFromStr(str string) (d sdk.Dec) {
 }
 
 func (s *decimalTestSuite) TestNewDecFromStr() {
-	largeBigInt, success := new(big.Int).SetString("3144605511029693144278234343371835", 10)
-	s.Require().True(success)
+	largeBigInt, ok := new(big.Int).SetString("3144605511029693144278234343371835", 10)
+	s.Require().True(ok)
+
+	largerBigInt, ok := new(big.Int).SetString("88888888888888888888888888888888888888888888888888888888888888888888844444440", 10)
+	s.Require().True(ok)
+
+	largestBigInt, ok := new(big.Int).SetString("133499189745056880149688856635597007162669032647290798121690100488888732861290034376435130433535", 10)
+	s.Require().True(ok)
 
 	tests := []struct {
 		decimalStr string
@@ -81,7 +87,9 @@ func (s *decimalTestSuite) TestNewDecFromStr() {
 		{"foobar", true, sdk.Dec{}},
 		{"0.foobar", true, sdk.Dec{}},
 		{"0.foobar.", true, sdk.Dec{}},
-		{"88888888888888888888888888888888888888888888888888888888888888888888844444440", true, sdk.Dec{}},
+		{"88888888888888888888888888888888888888888888888888888888888888888888844444440", false, sdk.NewDecFromBigInt(largerBigInt)},
+		{"133499189745056880149688856635597007162669032647290798121690100488888732861290.034376435130433535", false, sdk.NewDecFromBigIntWithPrec(largestBigInt, 18)},
+		{"133499189745056880149688856635597007162669032647290798121690100488888732861291", true, sdk.Dec{}},
 	}
 
 	for tcIndex, tc := range tests {
@@ -472,6 +480,12 @@ func (s *decimalTestSuite) TestDecSortableBytes() {
 }
 
 func (s *decimalTestSuite) TestDecEncoding() {
+	largestBigInt, ok := new(big.Int).SetString("133499189745056880149688856635597007162669032647290798121690100488888732861290034376435130433535", 10)
+	s.Require().True(ok)
+
+	smallestBigInt, ok := new(big.Int).SetString("-133499189745056880149688856635597007162669032647290798121690100488888732861290034376435130433535", 10)
+	s.Require().True(ok)
+
 	testCases := []struct {
 		input   sdk.Dec
 		rawBz   string
@@ -507,6 +521,18 @@ func (s *decimalTestSuite) TestDecEncoding() {
 			"\"-1.414213562373095049\"",
 			"\"-1.414213562373095049\"\n",
 		},
+		{
+			sdk.NewDecFromBigIntWithPrec(largestBigInt, 18),
+			"313333343939313839373435303536383830313439363838383536363335353937303037313632363639303332363437323930373938313231363930313030343838383838373332383631323930303334333736343335313330343333353335",
+			"\"133499189745056880149688856635597007162669032647290798121690100488888732861290.034376435130433535\"",
+			"\"133499189745056880149688856635597007162669032647290798121690100488888732861290.034376435130433535\"\n",
+		},
+		{
+			sdk.NewDecFromBigIntWithPrec(smallestBigInt, 18),
+			"2D313333343939313839373435303536383830313439363838383536363335353937303037313632363639303332363437323930373938313231363930313030343838383838373332383631323930303334333736343335313330343333353335",
+			"\"-133499189745056880149688856635597007162669032647290798121690100488888732861290.034376435130433535\"",
+			"\"-133499189745056880149688856635597007162669032647290798121690100488888732861290.034376435130433535\"\n",
+		},
 	}
 
 	for _, tc := range testCases {