1diff --git a/translation_finder/test_api.py b/translation_finder/test_api.py
2index c3b020c..9be070d 100644
3--- a/translation_finder/test_api.py
4+++ b/translation_finder/test_api.py
5@@ -173,6 +173,7 @@ class APITest(DiscoveryTestCase):
6 "filemask": "json/gotext-*.json",
7 "template": "json/gotext-en.json",
8 },
9+ {'filemask': 'linked/*.po', 'new_base': 'linked/messages.pot', 'file_format': 'po'},
10 ],
11 )
12
13diff --git a/translation_finder/test_discovery.py b/translation_finder/test_discovery.py
14index 1a0ca40..14caa4f 100644
15--- a/translation_finder/test_discovery.py
16+++ b/translation_finder/test_discovery.py
17@@ -945,6 +945,9 @@ class JSONDiscoveryTest(DiscoveryTestCase):
18 "file_format": "json-nested",
19 "template": "src/app/[locale]/_translations/en.json",
20 },
21+ {'filemask': '*/app/[locale]/_translations/cs.json', 'file_format': 'json-nested'},
22+ {'filemask': '*/app/[locale]/_translations/de.json', 'file_format': 'json-nested'},
23+ {'filemask': '*/app/[locale]/_translations/en.json', 'file_format': 'json-nested'}
24 ],
25 )