Add test cases and fix inlineDatum fetching for the Cardano CLI Backend (#303)

* Add tests for plutus script fetching and inline datums

* Add test case for datum hash

* Add epoch test case

* Formatting

* Fix typing

* Be more lenient in assigning datum hash

This is consistent with ogmios

* Generalize the types inside RawPlutusData

* Add support for RawCBOR primitivization

* Fix limit primitive type to not use a Union type

Author: nielstron

pycardano/backend/cardano_cli.py

@@ -31,7 +31,7 @@
 from pycardano.hash import DatumHash, ScriptHash
 from pycardano.nativescript import NativeScript
 from pycardano.network import Network
-from pycardano.plutus import PlutusV1Script, PlutusV2Script
+from pycardano.plutus import PlutusV1Script, PlutusV2Script, RawPlutusData, Datum
 from pycardano.serialization import RawCBOR
 from pycardano.transaction import (
     Asset,
@@ -437,16 +437,16 @@ def _utxos(self, address: str) -> List[UTxO]:
 
             datum_hash = (
                 DatumHash.from_primitive(utxo["datumhash"])
-                if utxo.get("datumhash") and utxo.get("inlineDatum") is None
+                if utxo.get("datumhash") is not None
                 else None
             )
 
-            datum = None
+            datum: Optional[Datum] = None
 
             if utxo.get("datum"):
                 datum = RawCBOR(bytes.fromhex(utxo["datum"]))
             elif utxo.get("inlineDatumhash"):
-                datum = utxo["inlineDatum"]
+                datum = RawPlutusData.from_dict(utxo["inlineDatum"])
 
             script = None
 

pycardano/plutus.py

@@ -781,11 +781,14 @@ def __deepcopy__(self, memo):
         return self.__class__.from_cbor(self.to_cbor_hex())
 
 
+RawDatum = Union[PlutusData, dict, int, bytes, IndefiniteList, RawCBOR, CBORTag]
+
+
 @dataclass(repr=True)
 class RawPlutusData(CBORSerializable):
-    data: CBORTag
+    data: RawDatum
 
-    def to_primitive(self) -> CBORTag:
+    def to_primitive(self) -> RawDatum:
         def _dfs(obj):
             if isinstance(obj, list) and obj:
                 return IndefiniteList([_dfs(item) for item in obj])
@@ -823,6 +826,8 @@ def _dfs(obj):
             elif isinstance(obj, CBORTag):
                 constructor, fields = get_constructor_id_and_fields(obj)
                 return {"constructor": constructor, "fields": [_dfs(f) for f in fields]}
+            elif isinstance(obj, RawCBOR):
+                return RawPlutusData.from_cbor(obj.cbor).to_dict()
             raise TypeError(f"Unexpected type {type(obj)}")
 
         return _dfs(RawPlutusData.to_primitive(self))
@@ -840,8 +845,10 @@ def to_json(self, **kwargs) -> str:
         return json.dumps(RawPlutusData.to_dict(self), **kwargs)
 
     @classmethod
-    @limit_primitive_type(CBORTag)
-    def from_primitive(cls: Type[RawPlutusData], value: CBORTag) -> RawPlutusData:
+    @limit_primitive_type(
+        PlutusData, dict, int, bytes, IndefiniteList, RawCBOR, CBORTag
+    )  # equal to RawDatum parameter list
+    def from_primitive(cls: Type[RawPlutusData], value: RawDatum) -> RawPlutusData:
         return cls(value)
 
     @classmethod