diff --git a/tests/test_rtutil.py b/tests/test_rtutil.py
index e70c488ed6acc29f296dddb2b43ec8a822e33238..7c285d06235c9a68fd38f15d9b168c567fe9f786 100644
--- a/tests/test_rtutil.py
+++ b/tests/test_rtutil.py
@@ -118,6 +118,30 @@ def test_url_default_filename(new_client, mimetype, extension):
     expected = '{}Ticket/Attachment/9/9/RT1%20attachment%209.{}'.format(DEFAULT_RT_URL, extension)
     assert rt.url(1, 9) == expected
 
+@pytest.mark.parametrize('rt_fmt,nonrt_fmt,missing_fmt', [
+    ('{}', '{}', '{}',),
+    ('<{}>', '[{}]', '({})'),
+])
+def test_iter_urls(rt, rt_fmt, nonrt_fmt, missing_fmt):
+    expected_map = {
+        'rt:{}{}'.format(tid, '' if aid is None else f'/{aid}'): url
+        for tid, aid, url in EXPECTED_URLS
+    }
+    expected_map['https://example.com'] = None
+    expected_map['invoice.pdf'] = None
+    keys = list(expected_map)
+    urls = rt.iter_urls(keys, rt_fmt, nonrt_fmt, missing_fmt)
+    for key, actual in itertools.zip_longest(keys, urls):
+        expected = expected_map[key]
+        if expected is None:
+            if key.startswith('rt:'):
+                expected = missing_fmt.format(key)
+            else:
+                expected = nonrt_fmt.format(key)
+        else:
+            expected = rt_fmt.format(DEFAULT_RT_URL + expected)
+        assert actual == expected
+
 @pytest.mark.parametrize('ticket_id,attachment_id,expected', EXPECTED_URLS)
 def test_exists(rt, ticket_id, attachment_id, expected):
     expected = False if expected is None else True
@@ -239,3 +263,21 @@ def test_txn_with_urls(rt):
         assert txn.meta[key] == expected
     assert txn.postings[0].meta['receipt'] == 'rt:2/13 donation.txt'
     assert txn.postings[1].meta['receipt'] == 'cash.png rt:2/14'
+
+def test_txn_with_urls_with_fmts(rt):
+    txn_meta = {
+        'rt-id': 'rt:1',
+        'contract': 'RepoLink.pdf',
+        'statement': 'rt:1/99 rt:1/4 stmt.txt',
+    }
+    txn = testutil.Transaction(**txn_meta)
+    actual = rt.txn_with_urls(txn, '<{}>', '[{}]', '({})')
+    rt_id_path = EXPECTED_URLS_MAP[(1, None)]
+    assert actual.meta['rt-id'] == f'<{DEFAULT_RT_URL}{rt_id_path}>'
+    assert actual.meta['contract'] == '[RepoLink.pdf]'
+    statement_path = EXPECTED_URLS_MAP[(1, 4)]
+    assert actual.meta['statement'] == ' '.join([
+        '(rt:1/99)',
+        f'<{DEFAULT_RT_URL}{statement_path}>',
+        '[stmt.txt]',
+    ])