chore(tests): create spec.py for EIP-7778 (#2887)

Author: felix314159

tests/amsterdam/eip7778_block_gas_accounting_without_refunds/spec.py

@@ -0,0 +1,24 @@
+"""Defines EIP-7778 specification constants and functions."""
+
+from dataclasses import dataclass
+
+
+@dataclass(frozen=True)
+class ReferenceSpec:
+    """Defines the reference spec version and git path."""
+
+    git_path: str
+    version: str
+
+
+ref_spec_7778 = ReferenceSpec(
+    "EIPS/eip-7778.md", "ce17d00b8341032a946301944124c4a6013032d6"
+)
+
+
+@dataclass(frozen=True)
+class Spec:
+    """
+    Parameters from the EIP-7778 specifications as defined at
+    https://eips.ethereum.org/EIPS/eip-7778.
+    """

tests/amsterdam/eip7778_block_gas_accounting_without_refunds/test_gas_accounting.py

@@ -24,8 +24,10 @@
 from execution_testing.base_types import HashInt
 from execution_testing.vm import Op
 
-REFERENCE_SPEC_GIT_PATH = "EIPS/eip-7778.md"
-REFERENCE_SPEC_VERSION = "ce17d00b8341032a946301944124c4a6013032d6"
+from .spec import ref_spec_7778
+
+REFERENCE_SPEC_GIT_PATH = ref_spec_7778.git_path
+REFERENCE_SPEC_VERSION = ref_spec_7778.version
 
 
 def build_refund_tx(