feat(fork): Add basic Amsterdam fork support

Author: fselmo

src/ethereum_test_forks/__init__.py

@@ -6,6 +6,7 @@
     BPO2,
     BPO3,
     BPO4,
+    Amsterdam,
     ArrowGlacier,
     Berlin,
     Byzantium,
@@ -83,6 +84,7 @@
     "TransitionForkAdapter",
     "TransitionForkOrNoneAdapter",
     "ForkAttribute",
+    "Amsterdam",
     "ArrowGlacier",
     "Berlin",
     "BerlinToLondonAt5",

src/ethereum_test_forks/forks/forks.py

@@ -1560,6 +1560,15 @@ def blob_base_cost(cls, block_number: int = 0, timestamp: int = 0) -> int:
         return 2**13  # EIP-7918 new parameter
 
 
+class Amsterdam(Osaka):
+    """Amsterdam fork."""
+
+    @classmethod
+    def is_deployed(cls) -> bool:
+        """Return True if this fork is deployed."""
+        return False
+
+
 class BPO1(Osaka, bpo_fork=True):
     """BPO1 fork - Blob Parameter Only fork 1."""
 

src/pytest_plugins/eels_resolutions.json

@@ -51,5 +51,8 @@
     },
     "BPO4": {
         "same_as": "EELSMaster"
+    },
+    "Amsterdam": {
+        "path": "../execution-specs"
     }
 }

tests/amsterdam/__init__.py

@@ -0,0 +1 @@
+"""Test cases for EVM functionality introduced in Amsterdam, [EIP-7773: Hardfork Meta - Glamsterdam](https://eip.directory/eips/eip-7773)."""  # noqa: E501