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fix: use epsilon tolerance in multipleOf float validation #989

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Merged
wolveix merged 1 commit into from
Mar 9, 2026
+8 −1
Merged

fix: use epsilon tolerance in multipleOf float validation #989

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2 changes: 1 addition & 1 deletion validate.go
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Original file line number Diff line number Diff line change
Expand Up @@ -493,7 +493,7 @@ func Validate(r Registry, s *Schema, path *PathBuffer, mode ValidateMode, v any,
}
}
if s.MultipleOf != nil {
if math.Mod(num, *s.MultipleOf) != 0 {
if r := math.Mod(num, *s.MultipleOf); math.Abs(r) > 1e-9 && math.Abs(r-*s.MultipleOf) > 1e-9 {
res.Add(path, v, s.msgMultipleOf)
}
}
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7 changes: 7 additions & 0 deletions validate_test.go
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Expand Up @@ -212,6 +212,13 @@ var validateTests = []struct {
input: map[string]any{"value": 2},
errs: []string{"expected number to be a multiple of 5"},
},
{
name: "multiple of float success",
typ: reflect.TypeFor[struct {
Value float64 "json:\"value\" multipleOf:\"0.01\""
}](),
input: map[string]any{"value": 0.36},
},
{
name: "string success",
typ: reflect.TypeFor[string](),
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