Format feature set as hex files when decoding

src/test_suite/multiprocessing_utils.py

@@ -1,5 +1,6 @@
 from dataclasses import dataclass, field
 from test_suite.constants import OUTPUT_BUFFER_SIZE
+from test_suite.context_pb2 import FeatureSet
 import test_suite.invoke_pb2 as invoke_pb
 import ctypes
 from ctypes import c_uint64, c_int, POINTER, Structure
@@ -131,6 +132,43 @@ def read_fixture(fixture_file: Path) -> str | None:
     return instruction_fixture.SerializeToString(deterministic=True)
 
 
+def format_feature_set(message, indent=0, as_one_line=False):
+    lines = []
+    lines.append(" " * indent + f"FeatureSet: {{")
+    for feature in message.features:
+        lines.append(" " * (indent + 2) + hex(feature))
+    lines.append(" " * indent + "}")
+    return "\n".join(lines)
+
+
+def recursive_formatter(message, indent=0, as_one_line=False):
+    """Recursively format the message and its sub-fields"""
+    lines = []
+    for field, value in message.ListFields():
+        if field.label == field.LABEL_REPEATED:
+            lines.append(" " * indent + f"{field.name}: [")
+            for item in value:
+                if field.type == field.TYPE_MESSAGE:
+                    lines.append(recursive_formatter(item, indent + 2, as_one_line))
+                else:
+                    lines.append(" " * (indent + 2) + str(item))
+            lines.append(" " * indent + "]")
+        elif field.type == field.TYPE_MESSAGE:
+            # If the field is a message, check if it needs custom formatting
+            lines.append(" " * indent + f"{field.name}: {{")
+            if isinstance(value, FeatureSet):
+                lines.append(format_feature_set(value, indent + 2, as_one_line))
+            else:
+                # Recursively format other sub-messages
+                lines.append(recursive_formatter(value, indent + 2, as_one_line))
+            lines.append(" " * indent + "}")
+        else:
+            # Use the default formatting for non-message fields
+            lines.append(" " * indent + f"{field.name}: {value}")
+
+    return "\n".join(lines)
+
+
 def decode_single_test_case(test_file: Path) -> int:
     """
     Decode a single test case into a human-readable message
@@ -154,7 +192,11 @@ def decode_single_test_case(test_file: Path) -> int:
 
     with open(globals.output_dir / (test_file.stem + ".txt"), "w") as f:
         f.write(
-            text_format.MessageToString(instruction_context, print_unknown_fields=False)
+            text_format.MessageToString(
+                instruction_context,
+                print_unknown_fields=False,
+                message_formatter=recursive_formatter,
+            )
         )
     return 1