Handle chknum in transaction field

Author: Ludovic Chopin

ofxparse/ofxparse.py

@@ -1079,13 +1079,14 @@ def parseTransaction(cls, txn_ofx):
                 if cls.fail_fast:
                     raise
 
-        checknum_tag = txn_ofx.find('checknum')
-        if hasattr(checknum_tag, 'contents'):
-            try:
-                transaction.checknum = checknum_tag.contents[0].strip()
-            except IndexError:
-                raise OfxParserException(six.u("Empty Check (or other reference) \
-                    number"))
+        for check_field in ('checknum', 'chknum'):
+            checknum_tag = txn_ofx.find(check_field)
+            if hasattr(checknum_tag, 'contents'):
+                try:
+                    transaction.checknum = checknum_tag.contents[0].strip()
+                except IndexError:
+                    raise OfxParserException(six.u("Empty Check (or other reference) \
+                        number"))
 
         return transaction
 

tests/test_parse.py

@@ -449,6 +449,20 @@ def testThatParseTransactionWithFieldCheckNum(self):
         transaction = OfxParser.parseTransaction(txn.find('stmttrn'))
         self.assertEqual('700', transaction.checknum)
 
+    def testThatParseTransactionWithFieldChkNum(self):
+        input = '''
+<STMTTRN>
+    <TRNTYPE>CHECK
+    <DTPOSTED>20231121
+    <TRNAMT>-113.71
+    <FITID>0000489
+    <CHKNUM>1932
+</STMTTRN>
+'''
+        txn = soup_maker(input)
+        transaction = OfxParser.parseTransaction(txn.find('stmttrn'))
+        self.assertEqual('1932', transaction.checknum)
+
     def testThatParseTransactionWithCommaAsDecimalPoint(self):
         input = '''
 <STMTTRN>