ruff fixes

Author: Pasarus

rundetection/rules/imat_rules.py

@@ -17,10 +17,26 @@
 
 
 def check_file(path: Path, run_number: str) -> bool:
+    """
+    Check if a file matches the run number.
+
+    :param path: The path to the file.
+    :param run_number: The run number to check for.
+    :return: True if it is a file and the run number is in the name.
+    """
     return path.is_file() and run_number in path.name
 
 
 def check_dir(path: Path, run_number: str) -> Path | None:
+    """
+    Check a directory for the IMAT image structure.
+
+    This looks for a file containing the run number and a directory named 'Tomo'.
+
+    :param path: The path to the experiment directory.
+    :param run_number: The run number to check for.
+    :return: The path to the Tomo directory if found, otherwise None.
+    """
     tomo = None
     file_found = False
     for child in path.iterdir():

test/rules/test_imat_rules.py

@@ -10,6 +10,9 @@
 from rundetection.job_requests import JobRequest
 from rundetection.rules.imat_rules import IMATFindImagesRule
 
+EXPECTED_ADDITIONAL_VALUES_LEN = 2
+RUN_NUMBER = 100
+
 
 @pytest.fixture
 def job_request():
@@ -50,9 +53,9 @@ def test_imat_find_images_success(job_request):
         rule.verify(job_request)
 
         # Assertions
-        assert len(job_request.additional_values) == 2
+        assert len(job_request.additional_values) == EXPECTED_ADDITIONAL_VALUES_LEN
         assert job_request.additional_values["images_dir"] == str(tomo_dir)
-        assert job_request.additional_values["runno"] == 100
+        assert job_request.additional_values["runno"] == RUN_NUMBER
 
 
 def test_imat_find_images_tomo_first(job_request):