der: fix recursion in TryFrom<AnyRef<'_>> impl for bool

der/src/asn1/boolean.rs

@@ -50,14 +50,35 @@ impl TryFrom<AnyRef<'_>> for bool {
     type Error = Error;
 
     fn try_from(any: AnyRef<'_>) -> Result<bool> {
-        any.try_into()
+        any.decode_as()
     }
 }
 
 #[cfg(test)]
 #[allow(clippy::unwrap_used, clippy::bool_assert_comparison)]
 mod tests {
-    use crate::{Decode, Encode};
+    use crate::{Decode, Encode, asn1::AnyRef};
+
+    #[test]
+    fn try_from_any() {
+        let true_value = AnyRef::from_der(&[0x01, 0x01, 0xFF]).unwrap();
+        let false_value = AnyRef::from_der(&[0x01, 0x01, 0x00]).unwrap();
+        assert_eq!(bool::try_from(true_value).unwrap(), true);
+        assert_eq!(bool::try_from(false_value).unwrap(), false);
+    }
+
+    #[test]
+    fn try_from_any_rejects_invalid_input() {
+        for bytes in [
+            &[0x02, 0x01, 0x00][..],   // Wrong tag: INTEGER.
+            &[0x01, 0x00],             // Empty BOOLEAN.
+            &[0x01, 0x02, 0x00, 0x00], // Overlong BOOLEAN.
+            &[0x01, 0x01, 0x01],       // Noncanonical TRUE.
+        ] {
+            let any = AnyRef::from_der(bytes).unwrap();
+            assert!(bool::try_from(any).is_err());
+        }
+    }
 
     #[test]
     fn decode() {