Change mathrace_interaction.determine_journal_version to take a strea…

…m as input

mathrace_interaction/mathrace_interaction/determine_journal_version.py

@@ -5,18 +5,18 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 """Determine the version of a mathrace journal."""
 
-import pathlib
 import typing
 
 
-def determine_journal_version(journal_filename: pathlib.Path) -> str:
+def determine_journal_version(journal_stream: typing.TextIO) -> str:
     """
     Determine the version of a mathrace journal.
 
     Parameters
     ----------
-    journal_filename
-        The filename of a journal generated by mathrace or simdis.
+    journal_stream
+        The I/O stream that reads the journal generated by mathrace or simdis.
+        The I/O stream is typically generated by open().
 
     Returns
     -------
@@ -98,8 +98,7 @@ def determine_journal_version(journal_filename: pathlib.Path) -> str:
 
           This change affects all race event codes.
     """
-    with open(journal_filename) as journal_file:
-        journal = [line.strip("\n") for line in journal_file.readlines()]
+    journal = [line.strip("\n") for line in journal_stream.readlines()]
 
     # Since all versions after the fallback one use the event code 200 for the race start,
     # a journal containing the code 002 is a fallback journal

mathrace_interaction/tests/unit/test_determine_journal_version.py

@@ -109,7 +109,8 @@ def test_determine_journal_version(
 ) -> None:
     """Test determine_journal_version with all journals in the data directory."""
     for journal in data_journals_all:
-        actual_version = determine_journal_version(journal)
+        with open(journal) as journal_stream:
+            actual_version = determine_journal_version(journal_stream)
         expected_version = expected_journal_versions_all[journal]
         assert actual_version == expected_version, (
             f"{journal} version was determined as {actual_version}, but the expected version was {expected_version}")