fix(spec-tests): fix title->module conversion for bpo forks (#1894)

Author: SamWilsn

src/ethereum/forks/bpo1/utils/hexadecimal.py

@@ -9,7 +9,7 @@
 ------------
 
 Hexadecimal utility functions used in this specification, specific to
-Bpo1 types.
+BPO1 types.
 """
 
 from ethereum_types.bytes import Bytes

src/ethereum_spec_tools/evm_tools/utils.py

@@ -128,6 +128,8 @@ def find_fork(
                 current_fork_module = fork
                 current_fork_block = fork_block
 
+    current_fork_module = re.sub("^b_p_o", "bpo", current_fork_module)
+
     for fork in forks:
         if current_fork_module == fork.short_name:
             return fork, current_fork_block

src/ethereum_spec_tools/forks.py

@@ -360,6 +360,9 @@ def title_case_name(self) -> str:
         """
         Name of the hard fork.
         """
+        if self.short_name.startswith("bpo"):
+            return "BPO" + self.short_name[3:].replace("_", " ")
+
         return self.short_name.replace("_", " ").title()
 
     def __repr__(self) -> str:

src/ethereum_spec_tools/new_fork/builder.py

@@ -214,14 +214,22 @@ class ReplaceForkName(CodemodArgs):
     def _to_args(
         self, fork_builder: "ForkBuilder", working_directory: Path
     ) -> list[list[str]]:
+        new_fork_title_case = fork_builder.new_fork.removeprefix("bpo")
+        if new_fork_title_case == fork_builder.new_fork:
+            new_fork_title_case = fork_builder.new_fork.replace(
+                "_", " "
+            ).title()
+        else:
+            new_fork_title_case = "BPO" + new_fork_title_case
+
         common = [
             str(working_directory),
             "--replace",
             fork_builder.template_fork.short_name,
             fork_builder.new_fork,
             "--replace",
             fork_builder.template_fork.title_case_name,
-            fork_builder.new_fork.replace("_", " ").title(),
+            new_fork_title_case,
             "--replace",
             fork_builder.template_fork.title_case_name.lower(),
             fork_builder.new_fork.replace("_", " ").lower(),