reconciler: Handle whitespace-only Citizen Bank transaction description

conservancy_beancount/reconcile/statement_reconciler.py

@@ -414,11 +414,12 @@ def first_word_exact_match(a: str, b: str) -> float:
     is useful and the rest is garbage.
 
     """
-    if len(a) == 0 or len(b) == 0:
+    a_words, b_words = a.split(), b.split()
+    if len(a_words) == 0 or len(b_words) == 0:
         return 0.0
-    first_a = a.split()[0].strip()
-    first_b = b.split()[0].strip()
-    if first_a.casefold() == first_b.casefold():
+    first_a = a_words[0].strip().casefold()
+    first_b = b_words[0].strip().casefold()
+    if first_a == first_b:
         return min(1.0, 0.2 * len(first_a))
     else:
         return 0.0

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = conservancy_beancount
-version = 1.22.0
+version = 1.23.0
 author = Software Freedom Conservancy
 author_email = info@sfconservancy.org
 description = Plugin, library, and reports for reading Conservancy’s books

tests/test_reconcile.py

@@ -459,3 +459,24 @@ month_test_data = [
 @pytest.mark.parametrize('input_dates,rounded_dates', month_test_data)
 def test_rounds_to_full_month(input_dates, rounded_dates):
     assert round_to_month(*input_dates) == rounded_dates
+
+
+def test_handles_payee_whitespace_only():
+    """Sometimes Citizen Bank statements have a single space in the transaction desc."""
+    statement = [
+        {
+            'date': datetime.date(2022, 1, 1),
+            'amount': decimal.Decimal('10.00'),
+            'payee': ' ',
+            'check_id': '',
+        }
+    ]
+    books = [
+        {
+            'date': datetime.date(2022, 1, 1),
+            'amount': decimal.Decimal('10.00'),
+            'payee': ' ',
+            'check_id': '',
+        }
+    ]
+    assert match_statement_and_books(statement, books)