1 files changed, 14 insertions, 0 deletions
diff --git a/third_party/rust/rust_decimal/src/fuzz.rs b/third_party/rust/rust_decimal/src/fuzz.rs
new file mode 100644
index 0000000000..14f2e6004e
--- /dev/null
+++ b/third_party/rust/rust_decimal/src/fuzz.rs
@@ -0,0 +1,14 @@
+use crate::Decimal;
+
+use arbitrary::{Arbitrary, Result as ArbitraryResult, Unstructured};
+
+impl Arbitrary<'_> for crate::Decimal {
+    fn arbitrary(u: &mut Unstructured<'_>) -> ArbitraryResult<Self> {
+        let lo = u32::arbitrary(u)?;
+        let mid = u32::arbitrary(u)?;
+        let hi = u32::arbitrary(u)?;
+        let negative = bool::arbitrary(u)?;
+        let scale = u32::arbitrary(u)?;
+        Ok(Decimal::from_parts(lo, mid, hi, negative, scale))
+    }
+}